[INFO] cloning repository https://github.com/Muriyoku/breadth-first-search
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Muriyoku/breadth-first-search" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMuriyoku%2Fbreadth-first-search", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMuriyoku%2Fbreadth-first-search'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 02301e22ef63374d5dc8c761eab0c166b47abad4
[INFO] checking Muriyoku/breadth-first-search against try#3a4cb0edb4040379c037e06efeb5409e44be7b77 for pr-146377
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMuriyoku%2Fbreadth-first-search" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Muriyoku/breadth-first-search
[INFO] finished tweaking git repo https://github.com/Muriyoku/breadth-first-search
[INFO] tweaked toml for git repo https://github.com/Muriyoku/breadth-first-search written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Muriyoku/breadth-first-search on toolchain 3a4cb0edb4040379c037e06efeb5409e44be7b77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Muriyoku/breadth-first-search 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" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c746282509b73d75af08102e3daef272e657ad78ba8e56bc4a912a753d8efd74
[INFO] running `Command { std: "docker" "start" "-a" "c746282509b73d75af08102e3daef272e657ad78ba8e56bc4a912a753d8efd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c746282509b73d75af08102e3daef272e657ad78ba8e56bc4a912a753d8efd74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c746282509b73d75af08102e3daef272e657ad78ba8e56bc4a912a753d8efd74", kill_on_drop: false }`
[INFO] [stdout] c746282509b73d75af08102e3daef272e657ad78ba8e56bc4a912a753d8efd74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98c32ff7fe622a52cdbe9ecdbd176d306f9a5ce53dd4ccb1820d3afea1aa5c67
[INFO] running `Command { std: "docker" "start" "-a" "98c32ff7fe622a52cdbe9ecdbd176d306f9a5ce53dd4ccb1820d3afea1aa5c67", kill_on_drop: false }`
[INFO] [stderr]     Checking breadth-first-search v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `fav_ctgr` is never read
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct GamerProfile {
[INFO] [stdout]   |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fav_ctgr: String, // ctgr == category
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GamerProfile` has a derived impl for the trait `Clone`, but this is 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: field `fav_ctgr` is never read
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct GamerProfile {
[INFO] [stdout]   |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fav_ctgr: String, // ctgr == category
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `GamerProfile` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "98c32ff7fe622a52cdbe9ecdbd176d306f9a5ce53dd4ccb1820d3afea1aa5c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98c32ff7fe622a52cdbe9ecdbd176d306f9a5ce53dd4ccb1820d3afea1aa5c67", kill_on_drop: false }`
[INFO] [stdout] 98c32ff7fe622a52cdbe9ecdbd176d306f9a5ce53dd4ccb1820d3afea1aa5c67