[INFO] fetching crate polsim 0.1.2...
[INFO] checking polsim-0.1.2 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate polsim 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate polsim 0.1.2 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polsim 0.1.2
[INFO] finished tweaking crates.io crate polsim 0.1.2
[INFO] tweaked toml for crates.io crate polsim 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded proptest v0.8.7
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.1.0
[INFO] [stderr]   Downloaded quicli v0.3.1
[INFO] [stderr]   Downloaded assert_approx_eq v1.0.0
[INFO] [stderr]   Downloaded polarization v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8c8c5e6c00a1f2020b4729b621ee881523b3311c780de28685122e79dab9803
[INFO] running `Command { std: "docker" "start" "-a" "a8c8c5e6c00a1f2020b4729b621ee881523b3311c780de28685122e79dab9803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8c8c5e6c00a1f2020b4729b621ee881523b3311c780de28685122e79dab9803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8c8c5e6c00a1f2020b4729b621ee881523b3311c780de28685122e79dab9803", kill_on_drop: false }`
[INFO] [stdout] a8c8c5e6c00a1f2020b4729b621ee881523b3311c780de28685122e79dab9803
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 75f16216fbeb2630f4f4e1dadd6ffb36600fefe5d64dfb88b5403b4b022c17c0
[INFO] running `Command { std: "docker" "start" "-a" "75f16216fbeb2630f4f4e1dadd6ffb36600fefe5d64dfb88b5403b4b022c17c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking assert_approx_eq v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking generic-array v0.11.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking nalgebra v0.16.14
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking clap-verbosity-flag v0.1.0
[INFO] [stderr]     Checking quicli v0.3.1
[INFO] [stderr]     Checking polarization v0.2.0
[INFO] [stderr]     Checking polsim v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `Command { std: "docker" "inspect" "75f16216fbeb2630f4f4e1dadd6ffb36600fefe5d64dfb88b5403b4b022c17c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f16216fbeb2630f4f4e1dadd6ffb36600fefe5d64dfb88b5403b4b022c17c0", kill_on_drop: false }`
[INFO] [stdout] 75f16216fbeb2630f4f4e1dadd6ffb36600fefe5d64dfb88b5403b4b022c17c0