[INFO] fetching crate phase21 0.3.3...
[INFO] checking phase21-0.3.3 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate phase21 0.3.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate phase21 0.3.3 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate phase21 0.3.3
[INFO] finished tweaking crates.io crate phase21 0.3.3
[INFO] tweaked toml for crates.io crate phase21 0.3.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate phase21 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 84f92d94bef36d60db850bd4a0e3e42f62040154baae89d524da1f7388d88a9e
[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" "84f92d94bef36d60db850bd4a0e3e42f62040154baae89d524da1f7388d88a9e"`
[INFO] [stderr]     Checking blake2s_simd v0.5.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rayon-core v1.6.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]    Compiling ff_derive v0.4.0
[INFO] [stderr]     Checking ff v0.5.0
[INFO] [stderr]     Checking groupy v0.2.0
[INFO] [stderr]     Checking paired v0.16.0
[INFO] [stderr]     Checking bellperson v0.5.2
[INFO] [stderr]     Checking phase21 v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.33s
[INFO] running `"docker" "inspect" "84f92d94bef36d60db850bd4a0e3e42f62040154baae89d524da1f7388d88a9e"`
[INFO] running `"docker" "rm" "-f" "84f92d94bef36d60db850bd4a0e3e42f62040154baae89d524da1f7388d88a9e"`
[INFO] [stdout] 84f92d94bef36d60db850bd4a0e3e42f62040154baae89d524da1f7388d88a9e