[INFO] cloning repository https://github.com/celsod/chap_13
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/celsod/chap_13" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelsod%2Fchap_13", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelsod%2Fchap_13'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e62286db88bc64665b7ad10af325269cc34f3a16
[INFO] checking celsod/chap_13 against try#8c500c7cefd54fd11d57295f3771d576be9ee415 for pr-145113
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcelsod%2Fchap_13" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/celsod/chap_13
[INFO] finished tweaking git repo https://github.com/celsod/chap_13
[INFO] tweaked toml for git repo https://github.com/celsod/chap_13 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/celsod/chap_13 on toolchain 8c500c7cefd54fd11d57295f3771d576be9ee415
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/celsod/chap_13 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" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0c9bb9842974422c586600596cd9f46a09ab1f644b4aa5d302b6e327872db3d
[INFO] running `Command { std: "docker" "start" "-a" "c0c9bb9842974422c586600596cd9f46a09ab1f644b4aa5d302b6e327872db3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0c9bb9842974422c586600596cd9f46a09ab1f644b4aa5d302b6e327872db3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0c9bb9842974422c586600596cd9f46a09ab1f644b4aa5d302b6e327872db3d", kill_on_drop: false }`
[INFO] [stdout] c0c9bb9842974422c586600596cd9f46a09ab1f644b4aa5d302b6e327872db3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+8c500c7cefd54fd11d57295f3771d576be9ee415" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9056f2638b05764da81a2e2c1c7ab11b76e6337a407250e31e4fc1bece720140
[INFO] running `Command { std: "docker" "start" "-a" "9056f2638b05764da81a2e2c1c7ab11b76e6337a407250e31e4fc1bece720140", kill_on_drop: false }`
[INFO] [stderr]     Checking chap_13 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]   --> src/lib.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Shoe {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoes_in_sizes` is never used
[INFO] [stdout]   --> src/lib.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn shoes_in_sizes(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "9056f2638b05764da81a2e2c1c7ab11b76e6337a407250e31e4fc1bece720140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9056f2638b05764da81a2e2c1c7ab11b76e6337a407250e31e4fc1bece720140", kill_on_drop: false }`
[INFO] [stdout] 9056f2638b05764da81a2e2c1c7ab11b76e6337a407250e31e4fc1bece720140