[INFO] cloning repository https://github.com/sytzez/compost
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sytzez/compost" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsytzez%2Fcompost", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsytzez%2Fcompost'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 780824f7fecc455f0881d64ffa72a9660be0e6c1
[INFO] checking sytzez/compost against 011c518242557d21690f7936b5812318dc2fec47 for pr-159877
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsytzez%2Fcompost" "/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/sytzez/compost
[INFO] finished tweaking git repo https://github.com/sytzez/compost
[INFO] tweaked toml for git repo https://github.com/sytzez/compost written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sytzez/compost on toolchain 011c518242557d21690f7936b5812318dc2fec47
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sytzez/compost 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" "+011c518242557d21690f7936b5812318dc2fec47" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:1fa6594d87c8fa7b311925a7a77a16f539833322d9dfba4ce891f211db2f90b1" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe
[INFO] running `Command { std: "docker" "start" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe" "/opt/rustwide/cargo-home/bin/cargo" "+011c518242557d21690f7936b5812318dc2fec47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking compost v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `remaining` is never used
[INFO] [stdout]   --> src/lex/tokens.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Tokens {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn remaining(&self) -> &[LeveledToken] {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[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 0.42s
[INFO] running `Command { std: "docker" "inspect" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe", kill_on_drop: false }`
[INFO] [stdout] cbe93a9b9aacc0bc13f48557f81e698a0034d71b0b7022fc72be835932665cfe
