[INFO] fetching crate mulm 1.1.1...
[INFO] checking mulm-1.1.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate mulm 1.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate mulm 1.1.1 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 mulm 1.1.1
[INFO] finished tweaking crates.io crate mulm 1.1.1
[INFO] tweaked toml for crates.io crate mulm 1.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate mulm 1.1.1 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] running `Command { std: "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" "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] 943ed3572ce520e54b4a32e59a66a89e9e1ac77c300e89906a21351595589d70
[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" "943ed3572ce520e54b4a32e59a66a89e9e1ac77c300e89906a21351595589d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "943ed3572ce520e54b4a32e59a66a89e9e1ac77c300e89906a21351595589d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "943ed3572ce520e54b4a32e59a66a89e9e1ac77c300e89906a21351595589d70", kill_on_drop: false }`
[INFO] [stdout] 943ed3572ce520e54b4a32e59a66a89e9e1ac77c300e89906a21351595589d70
[INFO] running `Command { std: "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" "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] 8f602c5499b1ede97b91fc7f3f4263754db2606c5e3f49b6dc7dac54bb0d344a
[INFO] running `Command { std: "docker" "start" "-a" "8f602c5499b1ede97b91fc7f3f4263754db2606c5e3f49b6dc7dac54bb0d344a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking quoted_printable v0.4.2
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking charset v0.1.2
[INFO] [stderr]     Checking mailparse v0.12.2
[INFO] [stderr]     Checking maildir v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking mulm v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.11s
[INFO] running `Command { std: "docker" "inspect" "8f602c5499b1ede97b91fc7f3f4263754db2606c5e3f49b6dc7dac54bb0d344a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f602c5499b1ede97b91fc7f3f4263754db2606c5e3f49b6dc7dac54bb0d344a", kill_on_drop: false }`
[INFO] [stdout] 8f602c5499b1ede97b91fc7f3f4263754db2606c5e3f49b6dc7dac54bb0d344a