[INFO] fetching crate arrest 0.1.3...
[INFO] checking arrest-0.1.3 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate arrest 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate arrest 0.1.3
[INFO] finished tweaking crates.io crate arrest 0.1.3
[INFO] tweaked toml for crates.io crate arrest 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate arrest 0.1.3 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate arrest 0.1.3 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6b5428620bbd2d410eb620f84b37d43487d48e686a45253d71ec76a63347f22
[INFO] running `Command { std: "docker" "start" "-a" "f6b5428620bbd2d410eb620f84b37d43487d48e686a45253d71ec76a63347f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6b5428620bbd2d410eb620f84b37d43487d48e686a45253d71ec76a63347f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b5428620bbd2d410eb620f84b37d43487d48e686a45253d71ec76a63347f22", kill_on_drop: false }`
[INFO] [stdout] f6b5428620bbd2d410eb620f84b37d43487d48e686a45253d71ec76a63347f22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba883f174a73211e34f79edd3a3175e3b84725a38ac61aa41e796695973439da
[INFO] running `Command { std: "docker" "start" "-a" "ba883f174a73211e34f79edd3a3175e3b84725a38ac61aa41e796695973439da", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]     Checking tracing-core v0.1.20
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking atoi v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking tracing-subscriber v0.2.21
[INFO] [stderr]     Checking mini-redis v0.4.1
[INFO] [stderr]     Checking hyper v0.14.12
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking arrest v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Context` and `anyhow`
[INFO] [stdout]  --> src/lib.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use anyhow::{anyhow, Context, Result};
[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 imports: `Context` and `anyhow`
[INFO] [stdout]  --> src/lib.rs:2:14
[INFO] [stdout]   |
[INFO] [stdout] 2 | use anyhow::{anyhow, Context, Result};
[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 variable: `struct_response`
[INFO] [stdout]    --> src/lib.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         struct_response: T,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_response`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base_url` is never read
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Client {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 12 |     base_url: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Client` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 tx.send(aself.get_url(&path).await).await;
[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] 85 |                 let _ = tx.send(aself.get_url(&path).await).await;
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `struct_response`
[INFO] [stdout]    --> src/lib.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         struct_response: T,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_struct_response`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `base_url` is never read
[INFO] [stdout]   --> src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Client {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 12 |     base_url: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Client` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/lib.rs:85:17
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 tx.send(aself.get_url(&path).await).await;
[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] 85 |                 let _ = tx.send(aself.get_url(&path).await).await;
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.62s
[INFO] running `Command { std: "docker" "inspect" "ba883f174a73211e34f79edd3a3175e3b84725a38ac61aa41e796695973439da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba883f174a73211e34f79edd3a3175e3b84725a38ac61aa41e796695973439da", kill_on_drop: false }`
[INFO] [stdout] ba883f174a73211e34f79edd3a3175e3b84725a38ac61aa41e796695973439da
