[INFO] cloning repository https://github.com/jinlow/namedrawer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jinlow/namedrawer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjinlow%2Fnamedrawer"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjinlow%2Fnamedrawer'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b8324dcbe64315a36993e7cbde38a395b5c2c28
[INFO] checking jinlow/namedrawer against master#7f940ef5d91b53e889f111f27e00849f2f5ae4a2 for pr-72493
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjinlow%2Fnamedrawer" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jinlow/namedrawer on toolchain 7f940ef5d91b53e889f111f27e00849f2f5ae4a2
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jinlow/namedrawer
[INFO] finished tweaking git repo https://github.com/jinlow/namedrawer
[INFO] tweaked toml for git repo https://github.com/jinlow/namedrawer written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jinlow/namedrawer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8bc3581aa75f4c248d4d11873cfe40038cbaf6cfeee5b1edd377bfc2ebe71412
[INFO] running `"docker" "start" "-a" "8bc3581aa75f4c248d4d11873cfe40038cbaf6cfeee5b1edd377bfc2ebe71412"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking namedraw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `from_vec`
[INFO] [stderr]   --> src/namedrawing.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn from_vec(names: Vec<Vec<String>>) -> NameDrawing {
[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] warning: associated function is never used: `from_vec`
[INFO] [stderr]   --> src/namedrawing.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn from_vec(names: Vec<Vec<String>>) -> NameDrawing {
[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 6.44s
[INFO] running `"docker" "inspect" "8bc3581aa75f4c248d4d11873cfe40038cbaf6cfeee5b1edd377bfc2ebe71412"`
[INFO] running `"docker" "rm" "-f" "8bc3581aa75f4c248d4d11873cfe40038cbaf6cfeee5b1edd377bfc2ebe71412"`
[INFO] [stdout] 8bc3581aa75f4c248d4d11873cfe40038cbaf6cfeee5b1edd377bfc2ebe71412