[INFO] fetching crate cargo-web 0.6.26...
[INFO] checking cargo-web-0.6.26 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate cargo-web 0.6.26 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cargo-web 0.6.26 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-web 0.6.26
[INFO] finished tweaking crates.io crate cargo-web 0.6.26
[INFO] tweaked toml for crates.io crate cargo-web 0.6.26 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-web 0.6.26 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9aaece3f93a19952a883d72645cfaef7a18fde95136b5772c29b161647141acc
[INFO] running `Command { std: "docker" "start" "-a" "9aaece3f93a19952a883d72645cfaef7a18fde95136b5772c29b161647141acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9aaece3f93a19952a883d72645cfaef7a18fde95136b5772c29b161647141acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9aaece3f93a19952a883d72645cfaef7a18fde95136b5772c29b161647141acc", kill_on_drop: false }`
[INFO] [stdout] 9aaece3f93a19952a883d72645cfaef7a18fde95136b5772c29b161647141acc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a922beab9cd997e6cee0988dde8df75cf626c78f57c3d4c15ad9e2685fe4a1ff
[INFO] running `Command { std: "docker" "start" "-a" "a922beab9cd997e6cee0988dde8df75cf626c78f57c3d4c15ad9e2685fe4a1ff", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
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[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tokio-uds v0.2.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking tokio v0.1.11
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking hyper v0.12.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]     Checking cargo_metadata v0.6.1
[INFO] [stderr]     Checking tokio-tls v0.2.0
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking websocket v0.21.1
[INFO] [stderr]     Checking reqwest v0.9.4
[INFO] [stderr]     Checking cargo-web v0.6.26 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `cargo_metadata` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use cargo_metadata;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | extern crate cargo_metadata;
[INFO] [stdout]    | ---------------------------- the item `cargo_metadata` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/mod.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/cfg.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo_output.rs:1:18
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/diagnostic_formatter.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tar` is imported redundantly
[INFO] [stdout]   --> src/utils.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use tar;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | extern crate tar;
[INFO] [stdout]    | ----------------- the item `tar` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/utils.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let file = fs::File::open( input_path )?;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |     unused_qualifications
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 89 -     let file = fs::File::open( input_path )?;
[INFO] [stdout] 89 +     let file = File::open( input_path )?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]   --> src/build.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | use atty::{self, Stream};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | extern crate atty;
[INFO] [stdout]    | ------------------ the item `atty` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use reqwest;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate reqwest;
[INFO] [stdout]    | --------------------- the item `reqwest` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:3:18
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:380:28
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 380 -                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout] 380 +                 response = reqwest::get( &check_url ).ok();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 383 -             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout] 383 +             open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]   --> src/config.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use toml;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate toml;
[INFO] [stdout]    | ------------------ the item `toml` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/http_utils.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  | use hyper::{self, StatusCode, Request, Response, Server};
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pbr` is imported redundantly
[INFO] [stdout]   --> src/package.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use pbr;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate pbr;
[INFO] [stdout]    | ----------------- the item `pbr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sha2` is imported redundantly
[INFO] [stdout]   --> src/package.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use sha2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | extern crate sha2;
[INFO] [stdout]    | ------------------ the item `sha2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/package.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parity_wasm` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use parity_wasm;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | extern crate parity_wasm;
[INFO] [stdout]    | ------------------------- the item `parity_wasm` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustc_demangle` is imported redundantly
[INFO] [stdout]   --> src/wasm_gc.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use rustc_demangle;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | extern crate rustc_demangle;
[INFO] [stdout]    | ---------------------------- the item `rustc_demangle` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `base_x` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use base_x;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern crate base_x;
[INFO] [stdout]    | -------------------- the item `base_x` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_snippet.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cargo_metadata` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use cargo_metadata;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | extern crate cargo_metadata;
[INFO] [stdout]    | ---------------------------- the item `cargo_metadata` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/mod.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/cfg.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo_output.rs:1:18
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/diagnostic_formatter.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tar` is imported redundantly
[INFO] [stdout]   --> src/utils.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use tar;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | extern crate tar;
[INFO] [stdout]    | ----------------- the item `tar` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/utils.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let file = fs::File::open( input_path )?;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |     unused_qualifications
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 89 -     let file = fs::File::open( input_path )?;
[INFO] [stdout] 89 +     let file = File::open( input_path )?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]   --> src/build.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | use atty::{self, Stream};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | extern crate atty;
[INFO] [stdout]    | ------------------ the item `atty` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use reqwest;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate reqwest;
[INFO] [stdout]    | --------------------- the item `reqwest` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:3:18
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:380:28
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 380 -                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout] 380 +                 response = reqwest::get( &check_url ).ok();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 383 -             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout] 383 +             open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]   --> src/config.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use toml;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate toml;
[INFO] [stdout]    | ------------------ the item `toml` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/http_utils.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  | use hyper::{self, StatusCode, Request, Response, Server};
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pbr` is imported redundantly
[INFO] [stdout]   --> src/package.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use pbr;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate pbr;
[INFO] [stdout]    | ----------------- the item `pbr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sha2` is imported redundantly
[INFO] [stdout]   --> src/package.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use sha2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | extern crate sha2;
[INFO] [stdout]    | ------------------ the item `sha2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/package.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parity_wasm` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use parity_wasm;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | extern crate parity_wasm;
[INFO] [stdout]    | ------------------------- the item `parity_wasm` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustc_demangle` is imported redundantly
[INFO] [stdout]   --> src/wasm_gc.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use rustc_demangle;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | extern crate rustc_demangle;
[INFO] [stdout]    | ---------------------------- the item `rustc_demangle` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `base_x` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use base_x;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern crate base_x;
[INFO] [stdout]    | -------------------- the item `base_x` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_snippet.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< error::Error > )
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< error::Error > )
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stdout]     |
[INFO] [stdout] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stdout]     |
[INFO] [stdout] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stdout]     |
[INFO] [stdout] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stdout]     |
[INFO] [stdout] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:34:93
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:35:91
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:70:84
[INFO] [stdout]    |
[INFO] [stdout] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:71:84
[INFO] [stdout]    |
[INFO] [stdout] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:98:60
[INFO] [stdout]    |
[INFO] [stdout] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:99:86
[INFO] [stdout]    |
[INFO] [stdout] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:34:93
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:35:91
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:70:84
[INFO] [stdout]    |
[INFO] [stdout] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:71:84
[INFO] [stdout]    |
[INFO] [stdout] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:98:60
[INFO] [stdout]    |
[INFO] [stdout] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:99:86
[INFO] [stdout]    |
[INFO] [stdout] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:75:87
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:85:48
[INFO] [stdout]    |
[INFO] [stdout] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:75:87
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:85:48
[INFO] [stdout]    |
[INFO] [stdout] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |         for mut artifact in &mut artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stdout]     |
[INFO] [stdout] 924 |         for mut artifact in artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |         for mut artifact in &mut artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stdout]     |
[INFO] [stdout] 924 |         for mut artifact in artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:541:38
[INFO] [stdout]     |
[INFO] [stdout] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stdout]     |                                      ----^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:579:40
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stdout]     |                                        ----^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:541:38
[INFO] [stdout]     |
[INFO] [stdout] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stdout]     |                                      ----^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:579:40
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stdout]     |                                        ----^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append_to_path` is never used
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait CommandExt {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 23 |     fn run( &mut self ) -> ExecutionStatus;
[INFO] [stdout] 24 |     fn append_to_path< P: AsRef< Path > >( &mut self, path: P ) -> &mut Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_export` and `is_exported` are never used
[INFO] [stdout]   --> src/wasm_context.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait ImportExport {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 45 |     fn is_imported( &self ) -> bool;
[INFO] [stdout] 46 |     fn as_export( &self ) -> &Export;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 47 |     fn as_export_mut( &mut self ) -> &mut Export;
[INFO] [stdout] 48 |     fn is_exported( &self ) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/wasm_gc.rs:176:14
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(&'a MemoryType),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(()),
[INFO] [stdout]     |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         drop(table);
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |         drop(t);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::ValueType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:539:13
[INFO] [stdout]     |
[INFO] [stdout] 539 |             drop(t); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:547:13
[INFO] [stdout]     |
[INFO] [stdout] 547 |             drop(m); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut parity_wasm::elements::MemoryType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         drop(s);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::GlobalType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-web` (lib test) due to 4 previous errors; 63 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append_to_path` is never used
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait CommandExt {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 23 |     fn run( &mut self ) -> ExecutionStatus;
[INFO] [stdout] 24 |     fn append_to_path< P: AsRef< Path > >( &mut self, path: P ) -> &mut Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_export` and `is_exported` are never used
[INFO] [stdout]   --> src/wasm_context.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait ImportExport {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 45 |     fn is_imported( &self ) -> bool;
[INFO] [stdout] 46 |     fn as_export( &self ) -> &Export;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 47 |     fn as_export_mut( &mut self ) -> &mut Export;
[INFO] [stdout] 48 |     fn is_exported( &self ) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/wasm_gc.rs:176:14
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(&'a MemoryType),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(()),
[INFO] [stdout]     |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         drop(table);
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |         drop(t);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::ValueType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:539:13
[INFO] [stdout]     |
[INFO] [stdout] 539 |             drop(t); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:547:13
[INFO] [stdout]     |
[INFO] [stdout] 547 |             drop(m); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut parity_wasm::elements::MemoryType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         drop(s);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::GlobalType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-web` (lib) due to 4 previous errors; 63 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a922beab9cd997e6cee0988dde8df75cf626c78f57c3d4c15ad9e2685fe4a1ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a922beab9cd997e6cee0988dde8df75cf626c78f57c3d4c15ad9e2685fe4a1ff", kill_on_drop: false }`
[INFO] [stdout] a922beab9cd997e6cee0988dde8df75cf626c78f57c3d4c15ad9e2685fe4a1ff
[INFO] checking cargo-web-0.6.26 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate cargo-web 0.6.26 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate cargo-web 0.6.26 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-web 0.6.26
[INFO] finished tweaking crates.io crate cargo-web 0.6.26
[INFO] tweaked toml for crates.io crate cargo-web 0.6.26 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-web 0.6.26 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3715a69567933e4fd23b22af6d3123520ecbbeb71527c5203442267377315dbc
[INFO] running `Command { std: "docker" "start" "-a" "3715a69567933e4fd23b22af6d3123520ecbbeb71527c5203442267377315dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3715a69567933e4fd23b22af6d3123520ecbbeb71527c5203442267377315dbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3715a69567933e4fd23b22af6d3123520ecbbeb71527c5203442267377315dbc", kill_on_drop: false }`
[INFO] [stdout] 3715a69567933e4fd23b22af6d3123520ecbbeb71527c5203442267377315dbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58aaf280d6597bb8a8a973975a08023512f46c12e73ff5884c60fcf247a89918
[INFO] running `Command { std: "docker" "start" "-a" "58aaf280d6597bb8a8a973975a08023512f46c12e73ff5884c60fcf247a89918", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling openssl-src v111.2.1+1.1.1b
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling openssl v0.10.13
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling native-tls v0.2.1
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling openssl-sys v0.9.45
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking tokio-current-thread v0.1.3
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking ucd-util v0.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking phf v0.7.23
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking byte-tools v0.3.0
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]    Compiling encoding_rs v0.8.10
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking walkdir v2.2.6
[INFO] [stderr]     Checking block-padding v0.1.2
[INFO] [stderr]     Checking h2 v0.1.13
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking mime v0.3.12
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking filetime v0.2.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]     Checking hyper v0.10.15
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking block-buffer v0.7.0
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking serde_urlencoded v0.5.3
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]     Checking tar v0.4.18
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking directories v2.0.1
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking toml v0.4.8
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking parity-wasm v0.35.1
[INFO] [stderr]     Checking base-x v0.2.3
[INFO] [stderr]     Checking open v1.2.2
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking tokio v0.1.11
[INFO] [stderr]     Checking handlebars v1.1.0
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]     Checking hyper v0.12.13
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking cargo_metadata v0.6.1
[INFO] [stderr]     Checking tokio-tls v0.2.0
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking websocket v0.21.1
[INFO] [stderr]     Checking reqwest v0.9.4
[INFO] [stderr]     Checking cargo-web v0.6.26 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `cargo_metadata` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use cargo_metadata;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | extern crate cargo_metadata;
[INFO] [stdout]    | ---------------------------- the item `cargo_metadata` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/mod.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/cfg.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo_output.rs:1:18
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/diagnostic_formatter.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tar` is imported redundantly
[INFO] [stdout]   --> src/utils.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use tar;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | extern crate tar;
[INFO] [stdout]    | ----------------- the item `tar` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/utils.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let file = fs::File::open( input_path )?;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |     unused_qualifications
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 89 -     let file = fs::File::open( input_path )?;
[INFO] [stdout] 89 +     let file = File::open( input_path )?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]   --> src/build.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | use atty::{self, Stream};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | extern crate atty;
[INFO] [stdout]    | ------------------ the item `atty` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use reqwest;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate reqwest;
[INFO] [stdout]    | --------------------- the item `reqwest` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:3:18
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:380:28
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 380 -                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout] 380 +                 response = reqwest::get( &check_url ).ok();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 383 -             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout] 383 +             open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]   --> src/config.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use toml;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate toml;
[INFO] [stdout]    | ------------------ the item `toml` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/http_utils.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  | use hyper::{self, StatusCode, Request, Response, Server};
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pbr` is imported redundantly
[INFO] [stdout]   --> src/package.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use pbr;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate pbr;
[INFO] [stdout]    | ----------------- the item `pbr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sha2` is imported redundantly
[INFO] [stdout]   --> src/package.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use sha2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | extern crate sha2;
[INFO] [stdout]    | ------------------ the item `sha2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/package.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parity_wasm` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use parity_wasm;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | extern crate parity_wasm;
[INFO] [stdout]    | ------------------------- the item `parity_wasm` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustc_demangle` is imported redundantly
[INFO] [stdout]   --> src/wasm_gc.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use rustc_demangle;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | extern crate rustc_demangle;
[INFO] [stdout]    | ---------------------------- the item `rustc_demangle` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `base_x` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use base_x;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern crate base_x;
[INFO] [stdout]    | -------------------- the item `base_x` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_snippet.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< error::Error > )
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cargo_metadata` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use cargo_metadata;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | extern crate cargo_metadata;
[INFO] [stdout]    | ---------------------------- the item `cargo_metadata` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/mod.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/mod.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `failure` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo/cfg.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use failure;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | extern crate failure;
[INFO] [stdout]    | --------------------- the item `failure` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/cargo_output.rs:1:18
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/cargo_shim/diagnostic_formatter.rs:3:5
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tar` is imported redundantly
[INFO] [stdout]   --> src/utils.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use tar;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | extern crate tar;
[INFO] [stdout]    | ----------------- the item `tar` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/utils.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |     let file = fs::File::open( input_path )?;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  |     unused_qualifications
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 89 -     let file = fs::File::open( input_path )?;
[INFO] [stdout] 89 +     let file = File::open( input_path )?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `atty` is imported redundantly
[INFO] [stdout]   --> src/build.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | use atty::{self, Stream};
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | extern crate atty;
[INFO] [stdout]    | ------------------ the item `atty` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `reqwest` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use reqwest;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate reqwest;
[INFO] [stdout]    | --------------------- the item `reqwest` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/chrome_devtools.rs:3:18
[INFO] [stdout]    |
[INFO] [stdout] 3  | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:380:28
[INFO] [stdout]     |
[INFO] [stdout] 380 |                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 380 -                 response = ::reqwest::get( &check_url ).ok();
[INFO] [stdout] 380 +                 response = reqwest::get( &check_url ).ok();
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/cmd_start.rs:383:13
[INFO] [stdout]     |
[INFO] [stdout] 383 |             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 383 -             ::open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout] 383 +             open::that( &format!( "http://{}", &address ) ).expect( "Failed to open browser" );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]   --> src/config.rs:4:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | use toml;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | extern crate toml;
[INFO] [stdout]    | ------------------ the item `toml` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `hyper` is imported redundantly
[INFO] [stdout]   --> src/http_utils.rs:8:13
[INFO] [stdout]    |
[INFO] [stdout] 8  | use hyper::{self, StatusCode, Request, Response, Server};
[INFO] [stdout]    |             ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | extern crate hyper;
[INFO] [stdout]    | ------------------- the item `hyper` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `pbr` is imported redundantly
[INFO] [stdout]   --> src/package.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use pbr;
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | extern crate pbr;
[INFO] [stdout]    | ----------------- the item `pbr` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sha2` is imported redundantly
[INFO] [stdout]   --> src/package.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use sha2;
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | extern crate sha2;
[INFO] [stdout]    | ------------------ the item `sha2` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/package.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tempfile` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use tempfile;
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | extern crate tempfile;
[INFO] [stdout]    | ---------------------- the item `tempfile` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/test_chromium.rs:16:18
[INFO] [stdout]    |
[INFO] [stdout] 16 | use serde_json::{self, Value};
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `parity_wasm` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use parity_wasm;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | extern crate parity_wasm;
[INFO] [stdout]    | ------------------------- the item `parity_wasm` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rustc_demangle` is imported redundantly
[INFO] [stdout]   --> src/wasm_gc.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use rustc_demangle;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | extern crate rustc_demangle;
[INFO] [stdout]    | ---------------------------- the item `rustc_demangle` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `base_x` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_export.rs:2:5
[INFO] [stdout]    |
[INFO] [stdout] 2  | use base_x;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:32:1
[INFO] [stdout]    |
[INFO] [stdout] 32 | extern crate base_x;
[INFO] [stdout]    | -------------------- the item `base_x` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/wasm_js_snippet.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use serde_json;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:31:1
[INFO] [stdout]    |
[INFO] [stdout] 31 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< error::Error > ),
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     RuntimeError( String, Box< dyn error::Error > ),
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< error::Error > )
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Other( Box< dyn error::Error > )
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:54:27
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub type FnHandler = Box< dyn Fn( Request< hyper::Body > ) -> ResponseFuture + Send + Sync >;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:53:32
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub type ResponseFuture = Box< dyn Future< Item = Response< Body >, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< error::Error > > for Error {
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl From< Box< dyn error::Error > > for Error {
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:54:24
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< error::Error > ) -> Self {
[INFO] [stdout]    |                        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn from( err: Box< dyn error::Error > ) -> Self {
[INFO] [stdout]    |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/http_utils.rs:55:31
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub type ServiceFuture = Box< dyn Future< Item = SimpleService, Error = hyper::Error > + Send >;
[INFO] [stdout]    |                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stdout]     |
[INFO] [stdout] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stdout]     |
[INFO] [stdout] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:34:93
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:35:91
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:70:84
[INFO] [stdout]    |
[INFO] [stdout] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:71:84
[INFO] [stdout]    |
[INFO] [stdout] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:98:60
[INFO] [stdout]    |
[INFO] [stdout] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:99:86
[INFO] [stdout]    |
[INFO] [stdout] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:267:86
[INFO] [stdout]     |
[INFO] [stdout] 267 |             Error::CannotLaunchCargo( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:268:80
[INFO] [stdout]     |
[INFO] [stdout] 268 |             Error::CargoFailed( ref err ) => write!( formatter, "{}: {}", self.description(), err ),
[INFO] [stdout]     |                                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/cargo_shim/mod.rs:269:91
[INFO] [stdout]     |
[INFO] [stdout] 269 |             Error::CannotParseCargoOutput( ref err ) => write!( formatter, "{}: {}", self.description(), err )
[INFO] [stdout]     |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:75:87
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:85:48
[INFO] [stdout]    |
[INFO] [stdout] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:34:93
[INFO] [stdout]    |
[INFO] [stdout] 34 |             ConnectionError::FailedToFetchUrl( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:35:91
[INFO] [stdout]    |
[INFO] [stdout] 35 |             ConnectionError::WebSocketError( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:70:84
[INFO] [stdout]    |
[INFO] [stdout] 70 |             CommunicationError::Send( ref message ) => write!( fmt, "{}: {}", self.description(), message ),
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:71:84
[INFO] [stdout]    |
[INFO] [stdout] 71 |             CommunicationError::Recv( ref message ) => write!( fmt, "{}: {}", self.description(), message )
[INFO] [stdout]    |                                                                                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:98:60
[INFO] [stdout]    |
[INFO] [stdout] 98 |             ReplyError::Timeout => write!( fmt, "{}", self.description() ),
[INFO] [stdout]    |                                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/chrome_devtools.rs:99:86
[INFO] [stdout]    |
[INFO] [stdout] 99 |             ReplyError::MalformedMessage( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:100:83
[INFO] [stdout]     |
[INFO] [stdout] 100 |             ReplyError::MalformedJson( ref error ) => write!( fmt, "{}: {}", self.description(), error ),
[INFO] [stdout]     |                                                                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/chrome_devtools.rs:101:88
[INFO] [stdout]     |
[INFO] [stdout] 101 |             ReplyError::CommunicationError( ref error ) => write!( fmt, "{}: {}", self.description(), error )
[INFO] [stdout]     |                                                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:35:57
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Error::CargoShimError( ref error ) => error.description(),
[INFO] [stdout]    |                                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:42:48
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Error::Other( ref error ) => error.description()
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:75:87
[INFO] [stdout]    |
[INFO] [stdout] 75 |             &Error::RuntimeError( _, ref inner ) => write!( formatter, "{}: {}", self.description(), inner ),
[INFO] [stdout]    |                                                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:85:48
[INFO] [stdout]    |
[INFO] [stdout] 85 |             _ => write!( formatter, "{}", self.description() )
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |         for mut artifact in &mut artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stdout]     |
[INFO] [stdout] 924 |         for mut artifact in artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:916:13
[INFO] [stdout]     |
[INFO] [stdout] 916 |         for mut artifact in &mut artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cargo_shim/mod.rs:924:13
[INFO] [stdout]     |
[INFO] [stdout] 924 |         for mut artifact in artifacts {
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:541:38
[INFO] [stdout]     |
[INFO] [stdout] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stdout]     |                                      ----^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:579:40
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stdout]     |                                        ----^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append_to_path` is never used
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait CommandExt {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 23 |     fn run( &mut self ) -> ExecutionStatus;
[INFO] [stdout] 24 |     fn append_to_path< P: AsRef< Path > >( &mut self, path: P ) -> &mut Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_export` and `is_exported` are never used
[INFO] [stdout]   --> src/wasm_context.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait ImportExport {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 45 |     fn is_imported( &self ) -> bool;
[INFO] [stdout] 46 |     fn as_export( &self ) -> &Export;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 47 |     fn as_export_mut( &mut self ) -> &mut Export;
[INFO] [stdout] 48 |     fn is_exported( &self ) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/wasm_gc.rs:176:14
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(&'a MemoryType),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(()),
[INFO] [stdout]     |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         drop(table);
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |         drop(t);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::ValueType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:539:13
[INFO] [stdout]     |
[INFO] [stdout] 539 |             drop(t); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:547:13
[INFO] [stdout]     |
[INFO] [stdout] 547 |             drop(m); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut parity_wasm::elements::MemoryType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         drop(s);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::GlobalType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:541:38
[INFO] [stdout]     |
[INFO] [stdout] 541 |                 pw::Section::Export( mut section ) => {
[INFO] [stdout]     |                                      ----^^^^^^^
[INFO] [stdout]     |                                      |
[INFO] [stdout]     |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wasm_context.rs:579:40
[INFO] [stdout]     |
[INFO] [stdout] 579 |                 pw::Section::Function( mut section ) => {
[INFO] [stdout]     |                                        ----^^^^^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-web` (lib test) due to 4 previous errors; 63 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `test` is never read
[INFO] [stdout]    --> src/lib.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 260 | struct Target {
[INFO] [stdout]     |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 272 |     test: Option<String>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Target` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bench` is never constructed
[INFO] [stdout]   --> src/cargo_shim/mod.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub enum Profile {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 37 |     Bench
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Profile` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `default_package` and `used_packages` are never used
[INFO] [stdout]    --> src/cargo_shim/mod.rs:448:12
[INFO] [stdout]     |
[INFO] [stdout] 274 | impl CargoProject {
[INFO] [stdout]     | ----------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 448 |     pub fn default_package( &self ) -> Option< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 452 |     pub fn used_packages( &self, triplet: &str, main_package: &CargoPackage, profile: Profile ) -> Vec< &CargoPackage > {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `append_to_path` is never used
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait CommandExt {
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] 23 |     fn run( &mut self ) -> ExecutionStatus;
[INFO] [stdout] 24 |     fn append_to_path< P: AsRef< Path > >( &mut self, path: P ) -> &mut Self;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_export` and `is_exported` are never used
[INFO] [stdout]   --> src/wasm_context.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub trait ImportExport {
[INFO] [stdout]    |           ------------ methods in this trait
[INFO] [stdout] 45 |     fn is_imported( &self ) -> bool;
[INFO] [stdout] 46 |     fn as_export( &self ) -> &Export;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 47 |     fn as_export_mut( &mut self ) -> &mut Export;
[INFO] [stdout] 48 |     fn is_exported( &self ) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/wasm_gc.rs:176:14
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(&'a MemoryType),
[INFO] [stdout]     |     -------- ^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 176 |     Imported(()),
[INFO] [stdout]     |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/package.rs:104:35
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( err )
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => panic!( "{}", err )
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err( err ) => std::panic::panic_any( err )
[INFO] [stdout]     |                           ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/wasm_context.rs:871:34
[INFO] [stdout]     |
[INFO] [stdout] 871 |         for mut pointer_table in self.fn_pointer_tables {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 871 |         while let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~                 ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 871 |         if let Some(mut pointer_table) = self.fn_pointer_tables {
[INFO] [stdout]     |         ~~~~~~~~~~~~                 ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         drop(table);
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:500:9
[INFO] [stdout]     |
[INFO] [stdout] 500 |         drop(t);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::ValueType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:539:13
[INFO] [stdout]     |
[INFO] [stdout] 539 |             drop(t); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut TableType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:547:13
[INFO] [stdout]     |
[INFO] [stdout] 547 |             drop(m); // TODO
[INFO] [stdout]     |             ^^^^^-^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut parity_wasm::elements::MemoryType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/wasm_gc.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 |         drop(s);
[INFO] [stdout]     |         ^^^^^-^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut parity_wasm::elements::GlobalType`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 63 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-web` (lib) due to 4 previous errors; 63 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "58aaf280d6597bb8a8a973975a08023512f46c12e73ff5884c60fcf247a89918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58aaf280d6597bb8a8a973975a08023512f46c12e73ff5884c60fcf247a89918", kill_on_drop: false }`
[INFO] [stdout] 58aaf280d6597bb8a8a973975a08023512f46c12e73ff5884c60fcf247a89918
