[INFO] cloning repository https://github.com/nilsmartel/learn-compiler
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilsmartel/learn-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsmartel%2Flearn-compiler"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsmartel%2Flearn-compiler'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1163962e7dac6203eee12743be39a1d3ecc4db64
[INFO] checking nilsmartel/learn-compiler against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsmartel%2Flearn-compiler" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilsmartel/learn-compiler on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nilsmartel/learn-compiler
[INFO] finished tweaking git repo https://github.com/nilsmartel/learn-compiler
[INFO] tweaked toml for git repo https://github.com/nilsmartel/learn-compiler written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/nilsmartel/learn-compiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 60f8e8f6bebe1b0dccfe90ce8754e56f087e9ec3d3c5a98f242df8d385b4300d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "60f8e8f6bebe1b0dccfe90ce8754e56f087e9ec3d3c5a98f242df8d385b4300d"`
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]     Checking learn-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/parse/tuple.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn new() -> Tuple {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.93s
[INFO] running `"docker" "inspect" "60f8e8f6bebe1b0dccfe90ce8754e56f087e9ec3d3c5a98f242df8d385b4300d"`
[INFO] running `"docker" "rm" "-f" "60f8e8f6bebe1b0dccfe90ce8754e56f087e9ec3d3c5a98f242df8d385b4300d"`
[INFO] [stdout] 60f8e8f6bebe1b0dccfe90ce8754e56f087e9ec3d3c5a98f242df8d385b4300d