[INFO] updating cached repository https://github.com/peat/pcpu
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bad5d9339df580fc237fda7e327da8ed10d2c564
[INFO] checking peat/pcpu against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeat%2Fpcpu" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peat/pcpu on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/peat/pcpu
[INFO] finished tweaking git repo https://github.com/peat/pcpu
[INFO] tweaked toml for git repo https://github.com/peat/pcpu written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/peat/pcpu already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2dba2ca4e84f6b274e28c9623cd5375421f2db5153103f347158b1919a84253d
[INFO] running `"docker" "start" "-a" "2dba2ca4e84f6b274e28c9623cd5375421f2db5153103f347158b1919a84253d"`
[INFO] [stderr]     Checking pcpu v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variant is never constructed: `NAND`
[INFO] [stderr]  --> src/gates.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     NAND,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NOR`
[INFO] [stderr]  --> src/gates.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     NOR,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `XNOR`
[INFO] [stderr]  --> src/gates.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     XNOR,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NAND`
[INFO] [stderr]  --> src/gates.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     NAND,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NOR`
[INFO] [stderr]  --> src/gates.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     NOR,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `XNOR`
[INFO] [stderr]  --> src/gates.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     XNOR,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "2dba2ca4e84f6b274e28c9623cd5375421f2db5153103f347158b1919a84253d"`
[INFO] running `"docker" "rm" "-f" "2dba2ca4e84f6b274e28c9623cd5375421f2db5153103f347158b1919a84253d"`
[INFO] [stdout] 2dba2ca4e84f6b274e28c9623cd5375421f2db5153103f347158b1919a84253d