[INFO] cloning repository https://github.com/SabrinaJewson/implicit-fn.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SabrinaJewson/implicit-fn.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSabrinaJewson%2Fimplicit-fn.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSabrinaJewson%2Fimplicit-fn.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2e1cba08aa8fd69ae243ad7a34c3e88f2283eb0
[INFO] checking SabrinaJewson/implicit-fn.rs against master#2b112efcccf831c0e0fbaa6470047c7067f12801 for pr-150727-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSabrinaJewson%2Fimplicit-fn.rs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SabrinaJewson/implicit-fn.rs
[INFO] finished tweaking git repo https://github.com/SabrinaJewson/implicit-fn.rs
[INFO] tweaked toml for git repo https://github.com/SabrinaJewson/implicit-fn.rs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SabrinaJewson/implicit-fn.rs on toolchain 2b112efcccf831c0e0fbaa6470047c7067f12801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b112efcccf831c0e0fbaa6470047c7067f12801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SabrinaJewson/implicit-fn.rs 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" "+2b112efcccf831c0e0fbaa6470047c7067f12801" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2b112efcccf831c0e0fbaa6470047c7067f12801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88b293d974f5a6603a924ad2d36dea2b92ca73d5f2529bd42e6a429195d8c12d
[INFO] running `Command { std: "docker" "start" "-a" "88b293d974f5a6603a924ad2d36dea2b92ca73d5f2529bd42e6a429195d8c12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88b293d974f5a6603a924ad2d36dea2b92ca73d5f2529bd42e6a429195d8c12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b293d974f5a6603a924ad2d36dea2b92ca73d5f2529bd42e6a429195d8c12d", kill_on_drop: false }`
[INFO] [stdout] 88b293d974f5a6603a924ad2d36dea2b92ca73d5f2529bd42e6a429195d8c12d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2b112efcccf831c0e0fbaa6470047c7067f12801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9979901b75d7b50c9de8df2f9dc114cb1cfb9295668e494a0b47f5450199ec42
[INFO] running `Command { std: "docker" "start" "-a" "9979901b75d7b50c9de8df2f9dc114cb1cfb9295668e494a0b47f5450199ec42", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.100
[INFO] [stderr]     Checking implicit-fn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]  --> tests/statement-macro.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | /     [true, true].map({
[INFO] [stdout] 5 | |         assert!(_);
[INFO] [stdout] 6 | |     });
[INFO] [stdout]   | |______^
[INFO] [stdout]   |
[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] 4 |     let _ = [true, true].map({
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.26s
[INFO] running `Command { std: "docker" "inspect" "9979901b75d7b50c9de8df2f9dc114cb1cfb9295668e494a0b47f5450199ec42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9979901b75d7b50c9de8df2f9dc114cb1cfb9295668e494a0b47f5450199ec42", kill_on_drop: false }`
[INFO] [stdout] 9979901b75d7b50c9de8df2f9dc114cb1cfb9295668e494a0b47f5450199ec42