[INFO] fetching crate numext-fixed-hash-hack 0.1.6...
[INFO] checking numext-fixed-hash-hack-0.1.6 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] extracting crate numext-fixed-hash-hack 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate numext-fixed-hash-hack 0.1.6 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate numext-fixed-hash-hack 0.1.6
[INFO] finished tweaking crates.io crate numext-fixed-hash-hack 0.1.6
[INFO] tweaked toml for crates.io crate numext-fixed-hash-hack 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bed80569d1590e55cdf1a38e782f5a9dcfe3c727fc8661d6cacda4c46769c2e
[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" "4bed80569d1590e55cdf1a38e782f5a9dcfe3c727fc8661d6cacda4c46769c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bed80569d1590e55cdf1a38e782f5a9dcfe3c727fc8661d6cacda4c46769c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bed80569d1590e55cdf1a38e782f5a9dcfe3c727fc8661d6cacda4c46769c2e", kill_on_drop: false }`
[INFO] [stdout] 4bed80569d1590e55cdf1a38e782f5a9dcfe3c727fc8661d6cacda4c46769c2e
[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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4e45243fce71f6bfbcabbef6d0b4a24204959ab54b259626945c712dafd62ba
[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" "f4e45243fce71f6bfbcabbef6d0b4a24204959ab54b259626945c712dafd62ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling numext-constructor v0.1.6
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling numext-fixed-uint-core v0.1.6
[INFO] [stderr]    Compiling numext-fixed-uint-hack v0.1.6
[INFO] [stderr]     Checking numext-fixed-uint v0.1.6
[INFO] [stderr]     Checking numext-fixed-hash-core v0.1.6
[INFO] [stderr] error: could not compile `numext-fixed-hash-core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name numext_fixed_hash_core --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/numext-fixed-hash-core-0.1.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bits_1024"' --cfg 'feature="bits_128"' --cfg 'feature="bits_160"' --cfg 'feature="bits_2048"' --cfg 'feature="bits_224"' --cfg 'feature="bits_256"' --cfg 'feature="bits_384"' --cfg 'feature="bits_4096"' --cfg 'feature="bits_512"' --cfg 'feature="bits_520"' --cfg 'feature="bits_all"' --cfg 'feature="default"' -C metadata=726b9fce3b8adf09 -C extra-filename=-726b9fce3b8adf09 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern constructor=/opt/rustwide/target/debug/deps/libnumext_constructor-b53a31f684d2cb5c.so --extern nfuint=/opt/rustwide/target/debug/deps/libnumext_fixed_uint-e69816fdbea485e6.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-29c9aaef4a4d19df.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f4e45243fce71f6bfbcabbef6d0b4a24204959ab54b259626945c712dafd62ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4e45243fce71f6bfbcabbef6d0b4a24204959ab54b259626945c712dafd62ba", kill_on_drop: false }`
[INFO] [stdout] f4e45243fce71f6bfbcabbef6d0b4a24204959ab54b259626945c712dafd62ba