[INFO] cloning repository https://github.com/emmystark/rust_surf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emmystark/rust_surf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmystark%2Frust_surf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmystark%2Frust_surf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c6a59d47f6d80ec38f36962e30a2204c6a99079
[INFO] checking emmystark/rust_surf against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femmystark%2Frust_surf" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emmystark/rust_surf
[INFO] finished tweaking git repo https://github.com/emmystark/rust_surf
[INFO] tweaked toml for git repo https://github.com/emmystark/rust_surf written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emmystark/rust_surf on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emmystark/rust_surf 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" "+028201683a76a5cd349729c6819c46607119c4e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc2f8ce1bbd89433d6e5ccdd8ef576e8ff7107498ca9e055fcc015d3f5760e6c
[INFO] running `Command { std: "docker" "start" "-a" "cc2f8ce1bbd89433d6e5ccdd8ef576e8ff7107498ca9e055fcc015d3f5760e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc2f8ce1bbd89433d6e5ccdd8ef576e8ff7107498ca9e055fcc015d3f5760e6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2f8ce1bbd89433d6e5ccdd8ef576e8ff7107498ca9e055fcc015d3f5760e6c", kill_on_drop: false }`
[INFO] [stdout] cc2f8ce1bbd89433d6e5ccdd8ef576e8ff7107498ca9e055fcc015d3f5760e6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7b8543939c303dcf95b786e939f360583db5b5e0e2912abd4aea96ba0e28f46
[INFO] running `Command { std: "docker" "start" "-a" "d7b8543939c303dcf95b786e939f360583db5b5e0e2912abd4aea96ba0e28f46", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_init v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut x = 5;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/main.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut x = 5;
[INFO] [stdout]    |             ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Up`, `Down`, and `Right` are never constructed
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |     enum Direction {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] 240 |         Up,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 241 |         Down,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 242 |         Left,
[INFO] [stdout] 243 |         Right,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Up`, `Down`, and `Right` are never constructed
[INFO] [stdout]    --> src/main.rs:240:9
[INFO] [stdout]     |
[INFO] [stdout] 239 |     enum Direction {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] 240 |         Up,
[INFO] [stdout]     |         ^^
[INFO] [stdout] 241 |         Down,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 242 |         Left,
[INFO] [stdout] 243 |         Right,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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" "d7b8543939c303dcf95b786e939f360583db5b5e0e2912abd4aea96ba0e28f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7b8543939c303dcf95b786e939f360583db5b5e0e2912abd4aea96ba0e28f46", kill_on_drop: false }`
[INFO] [stdout] d7b8543939c303dcf95b786e939f360583db5b5e0e2912abd4aea96ba0e28f46