[INFO] fetching crate rp-cli 0.0.4...
[INFO] checking rp-cli-0.0.4 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate rp-cli 0.0.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rp-cli 0.0.4
[INFO] finished tweaking crates.io crate rp-cli 0.0.4
[INFO] tweaked toml for crates.io crate rp-cli 0.0.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rp-cli 0.0.4 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rp-cli 0.0.4 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 78caefe749aefc59a500db4510df7ba0a6e98b534a8c35121257720660eca9e5
[INFO] running `Command { std: "docker" "start" "-a" "78caefe749aefc59a500db4510df7ba0a6e98b534a8c35121257720660eca9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78caefe749aefc59a500db4510df7ba0a6e98b534a8c35121257720660eca9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78caefe749aefc59a500db4510df7ba0a6e98b534a8c35121257720660eca9e5", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27a32c903f164ef3cf7c5fb72c75ade9061988318f74069d626dcd30e606b4b7
[INFO] running `Command { std: "docker" "start" "-a" "27a32c903f164ef3cf7c5fb72c75ade9061988318f74069d626dcd30e606b4b7", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Deserialize`
[INFO] [stdout]  --> src/api.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Deserialize, Serialize};
[INFO] [stdout]   |                                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compile`
[INFO] [stdout]  --> src/handler.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::api_types::{compile, download, execute, fmt, share};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParseError`
[INFO] [stdout]  --> src/handler.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use url::{ParseError, Url};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compile`
[INFO] [stdout]  --> src/printer.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::api_types::{compile, download, execute, fmt, share};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Deserialize`
[INFO] [stdout]  --> src/api.rs:2:35
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{de::DeserializeOwned, Deserialize, Serialize};
[INFO] [stdout]   |                                   ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compile`
[INFO] [stdout]  --> src/handler.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::api_types::{compile, download, execute, fmt, share};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParseError`
[INFO] [stdout]  --> src/handler.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | use url::{ParseError, Url};
[INFO] [stdout]   |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compile`
[INFO] [stdout]  --> src/printer.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::api_types::{compile, download, execute, fmt, share};
[INFO] [stdout]   |                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler.rs:98:58
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn pick_id_from(id_or_url: String) -> Result<String, Box<std::error::Error>> {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn pick_id_from(id_or_url: String) -> Result<String, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn code_from_path(file_path: &path::PathBuf) -> Result<String, Box<std::error::Error>> {
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn code_from_path(file_path: &path::PathBuf) -> Result<String, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler.rs:98:58
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn pick_id_from(id_or_url: String) -> Result<String, Box<std::error::Error>> {
[INFO] [stdout]    |                                                          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn pick_id_from(id_or_url: String) -> Result<String, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/input.rs:25:72
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn code_from_path(file_path: &path::PathBuf) -> Result<String, Box<std::error::Error>> {
[INFO] [stdout]    |                                                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn code_from_path(file_path: &path::PathBuf) -> Result<String, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/printer.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut writer = io::BufWriter::new(stdout);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/printer.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let mut writer = io::BufWriter::new(stdout);
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FORMAT_TITLE` is never used
[INFO] [stdout]   --> src/printer.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const FORMAT_TITLE: &str = "Format";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_new_line` is never used
[INFO] [stdout]    --> src/printer.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Printer {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 139 |     fn print_new_line(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FORMAT_TITLE` is never used
[INFO] [stdout]   --> src/printer.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const FORMAT_TITLE: &str = "Format";
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_new_line` is never used
[INFO] [stdout]    --> src/printer.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout]  30 | impl Printer {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 139 |     fn print_new_line(&mut self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/printer.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         writeln!(self.writer, "");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let _ = writeln!(self.writer, "");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/printer.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |         writeln!(self.writer, "");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let _ = writeln!(self.writer, "");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `why`
[INFO] [stdout]   --> src/bin/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Err(why) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_why`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `why`
[INFO] [stdout]   --> src/bin/main.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         Err(why) => {
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_why`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.85s
[INFO] running `Command { std: "docker" "inspect" "27a32c903f164ef3cf7c5fb72c75ade9061988318f74069d626dcd30e606b4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a32c903f164ef3cf7c5fb72c75ade9061988318f74069d626dcd30e606b4b7", kill_on_drop: false }`
[INFO] [stdout] 27a32c903f164ef3cf7c5fb72c75ade9061988318f74069d626dcd30e606b4b7
