[INFO] fetching crate las 0.7.3...
[INFO] checking las-0.7.3 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate las 0.7.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate las 0.7.3 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 las 0.7.3
[INFO] finished tweaking crates.io crate las 0.7.3
[INFO] tweaked toml for crates.io crate las 0.7.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate las 0.7.3 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 4fa5015727a30a6ba09968e6df2db51e6f3e3c8ff171bae6077d66af597c2629
[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" "4fa5015727a30a6ba09968e6df2db51e6f3e3c8ff171bae6077d66af597c2629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fa5015727a30a6ba09968e6df2db51e6f3e3c8ff171bae6077d66af597c2629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fa5015727a30a6ba09968e6df2db51e6f3e3c8ff171bae6077d66af597c2629", kill_on_drop: false }`
[INFO] [stdout] 4fa5015727a30a6ba09968e6df2db51e6f3e3c8ff171bae6077d66af597c2629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6ba54125dafe817a6ab976bceaeadd848ed547eed10630d0b9ab46a1cbdfb53a
[INFO] running `Command { std: "docker" "start" "-a" "6ba54125dafe817a6ab976bceaeadd848ed547eed10630d0b9ab46a1cbdfb53a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking las v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.45s
[INFO] running `Command { std: "docker" "inspect" "6ba54125dafe817a6ab976bceaeadd848ed547eed10630d0b9ab46a1cbdfb53a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba54125dafe817a6ab976bceaeadd848ed547eed10630d0b9ab46a1cbdfb53a", kill_on_drop: false }`
[INFO] [stdout] 6ba54125dafe817a6ab976bceaeadd848ed547eed10630d0b9ab46a1cbdfb53a