[INFO] fetching crate matrixmultiply_mt 0.1.7...
[INFO] checking matrixmultiply_mt-0.1.7 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate matrixmultiply_mt 0.1.7 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate matrixmultiply_mt 0.1.7 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matrixmultiply_mt 0.1.7
[INFO] finished tweaking crates.io crate matrixmultiply_mt 0.1.7
[INFO] tweaked toml for crates.io crate matrixmultiply_mt 0.1.7 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93ec653d81c35156bd59b36de5e9ef43a70e33a39436ddeb4fae470a54836377
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93ec653d81c35156bd59b36de5e9ef43a70e33a39436ddeb4fae470a54836377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93ec653d81c35156bd59b36de5e9ef43a70e33a39436ddeb4fae470a54836377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93ec653d81c35156bd59b36de5e9ef43a70e33a39436ddeb4fae470a54836377", kill_on_drop: false }`
[INFO] [stdout] 93ec653d81c35156bd59b36de5e9ef43a70e33a39436ddeb4fae470a54836377
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16aea085c163064df6700a1e5606f2861deabc61ed64e74bcfda57fcc9124afe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "16aea085c163064df6700a1e5606f2861deabc61ed64e74bcfda57fcc9124afe", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling libc v0.2.89
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling matrixmultiply_mt v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking typenum_loops v0.3.0
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.06s
[INFO] running `Command { std: "docker" "inspect" "16aea085c163064df6700a1e5606f2861deabc61ed64e74bcfda57fcc9124afe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16aea085c163064df6700a1e5606f2861deabc61ed64e74bcfda57fcc9124afe", kill_on_drop: false }`
[INFO] [stdout] 16aea085c163064df6700a1e5606f2861deabc61ed64e74bcfda57fcc9124afe