[INFO] crate rd_test_arts 0.1.0 is already in cache
[INFO] checking rd_test_arts-0.1.0 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate rd_test_arts 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rd_test_arts 0.1.0 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rd_test_arts 0.1.0
[INFO] finished tweaking crates.io crate rd_test_arts 0.1.0
[INFO] tweaked toml for crates.io crate rd_test_arts 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] 4b05a91aff737ca19adae0f18e4a2f1f088d9e422382b44f708f81fcf98609d2
[INFO] running `"docker" "start" "-a" "4b05a91aff737ca19adae0f18e4a2f1f088d9e422382b44f708f81fcf98609d2"`
[INFO] [stderr]     Checking rd_test_arts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn mix (c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor{
[INFO] [stderr]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:32:35
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn mix (c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor{
[INFO] [stderr]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c1`
[INFO] [stderr]   --> src/lib.rs:32:17
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn mix (c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor{
[INFO] [stderr]    |                 ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `c2`
[INFO] [stderr]   --> src/lib.rs:32:35
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn mix (c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor{
[INFO] [stderr]    |                                   ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "4b05a91aff737ca19adae0f18e4a2f1f088d9e422382b44f708f81fcf98609d2"`
[INFO] running `"docker" "rm" "-f" "4b05a91aff737ca19adae0f18e4a2f1f088d9e422382b44f708f81fcf98609d2"`
[INFO] [stdout] 4b05a91aff737ca19adae0f18e4a2f1f088d9e422382b44f708f81fcf98609d2