[INFO] cloning repository https://github.com/WardToulet/chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WardToulet/chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWardToulet%2Fchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWardToulet%2Fchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01eb2f430f020d29f5696cbbdcd7a39f38a38ee3
[INFO] checking WardToulet/chain against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWardToulet%2Fchain" "/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/WardToulet/chain
[INFO] finished tweaking git repo https://github.com/WardToulet/chain
[INFO] tweaked toml for git repo https://github.com/WardToulet/chain written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/WardToulet/chain on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/WardToulet/chain 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 370511c666a7f2b9412bc8afbb493de00431d55902db5401f51be8cca194b82a
[INFO] running `Command { std: "docker" "start" "-a" "370511c666a7f2b9412bc8afbb493de00431d55902db5401f51be8cca194b82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "370511c666a7f2b9412bc8afbb493de00431d55902db5401f51be8cca194b82a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "370511c666a7f2b9412bc8afbb493de00431d55902db5401f51be8cca194b82a", kill_on_drop: false }`
[INFO] [stdout] 370511c666a7f2b9412bc8afbb493de00431d55902db5401f51be8cca194b82a
[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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81f7a109cb97e7ac5bc9f6b55cfa26f796e552b9afa7f6bb2ce5a07b0afea1e2
[INFO] running `Command { std: "docker" "start" "-a" "81f7a109cb97e7ac5bc9f6b55cfa26f796e552b9afa7f6bb2ce5a07b0afea1e2", kill_on_drop: false }`
[INFO] [stderr]     Checking chainc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `lex` is never used
[INFO] [stdout]  --> src/lexer/mod.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn lex(code: &str) -> Option<Vec<LexToken>> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LexToken` is never used
[INFO] [stdout]  --> src/lexer/lex_token.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum LexToken {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "81f7a109cb97e7ac5bc9f6b55cfa26f796e552b9afa7f6bb2ce5a07b0afea1e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f7a109cb97e7ac5bc9f6b55cfa26f796e552b9afa7f6bb2ce5a07b0afea1e2", kill_on_drop: false }`
[INFO] [stdout] 81f7a109cb97e7ac5bc9f6b55cfa26f796e552b9afa7f6bb2ce5a07b0afea1e2