[INFO] cloning repository https://github.com/alexesmet/mandelbrot-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alexesmet/mandelbrot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexesmet%2Fmandelbrot-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexesmet%2Fmandelbrot-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b1f77dfef7963a0c04729a201f9675d16e9ca07
[INFO] checking alexesmet/mandelbrot-rs against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falexesmet%2Fmandelbrot-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alexesmet/mandelbrot-rs on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alexesmet/mandelbrot-rs
[INFO] finished tweaking git repo https://github.com/alexesmet/mandelbrot-rs
[INFO] tweaked toml for git repo https://github.com/alexesmet/mandelbrot-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/alexesmet/mandelbrot-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2dcf752bf3b72d7ee3b83e257657338cfde6e2c0135b0b76a032dc0120f7cb8b
[INFO] running `Command { std: "docker" "start" "-a" "2dcf752bf3b72d7ee3b83e257657338cfde6e2c0135b0b76a032dc0120f7cb8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dcf752bf3b72d7ee3b83e257657338cfde6e2c0135b0b76a032dc0120f7cb8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dcf752bf3b72d7ee3b83e257657338cfde6e2c0135b0b76a032dc0120f7cb8b", kill_on_drop: false }`
[INFO] [stdout] 2dcf752bf3b72d7ee3b83e257657338cfde6e2c0135b0b76a032dc0120f7cb8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf350d42a8257da7b8c9053baeab449f3164d0387ad7a34d0ea76ad3a8441562
[INFO] running `Command { std: "docker" "start" "-a" "bf350d42a8257da7b8c9053baeab449f3164d0387ad7a34d0ea76ad3a8441562", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling syn v1.0.73
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[INFO] [stderr]    Compiling cfg_aliases v0.1.1
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[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:66:16
[INFO] [stdout]    |
[INFO] [stdout] 66 |             if (changed) {
[INFO] [stdout]    |                ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:66:16
[INFO] [stdout]    |
[INFO] [stdout] 66 |             if (changed) {
[INFO] [stdout]    |                ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "bf350d42a8257da7b8c9053baeab449f3164d0387ad7a34d0ea76ad3a8441562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf350d42a8257da7b8c9053baeab449f3164d0387ad7a34d0ea76ad3a8441562", kill_on_drop: false }`
[INFO] [stdout] bf350d42a8257da7b8c9053baeab449f3164d0387ad7a34d0ea76ad3a8441562