[INFO] fetching crate hkdf 0.10.0...
[INFO] checking hkdf-0.10.0 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate hkdf 0.10.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate hkdf 0.10.0 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hkdf 0.10.0
[INFO] finished tweaking crates.io crate hkdf 0.10.0
[INFO] tweaked toml for crates.io crate hkdf 0.10.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate hkdf 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d77783ce368e0e85a6e54d1151709e1392413932060d53d5efcff5e48f75829
[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" "7d77783ce368e0e85a6e54d1151709e1392413932060d53d5efcff5e48f75829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d77783ce368e0e85a6e54d1151709e1392413932060d53d5efcff5e48f75829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d77783ce368e0e85a6e54d1151709e1392413932060d53d5efcff5e48f75829", kill_on_drop: false }`
[INFO] [stdout] 7d77783ce368e0e85a6e54d1151709e1392413932060d53d5efcff5e48f75829
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] 2605a1d506290a10edb8e596d9a1e7342e84443153b1f2228f600da2ad9216b5
[INFO] running `Command { std: "docker" "start" "-a" "2605a1d506290a10edb8e596d9a1e7342e84443153b1f2228f600da2ad9216b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking digest v0.6.2
[INFO] [stderr]     Checking block-cipher-trait v0.4.2
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking crypto-tests v0.5.5
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking hkdf v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "2605a1d506290a10edb8e596d9a1e7342e84443153b1f2228f600da2ad9216b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2605a1d506290a10edb8e596d9a1e7342e84443153b1f2228f600da2ad9216b5", kill_on_drop: false }`
[INFO] [stdout] 2605a1d506290a10edb8e596d9a1e7342e84443153b1f2228f600da2ad9216b5