[INFO] fetching crate slog-scope 4.3.0...
[INFO] checking slog-scope-4.3.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate slog-scope 4.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate slog-scope 4.3.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-scope 4.3.0
[INFO] finished tweaking crates.io crate slog-scope 4.3.0
[INFO] tweaked toml for crates.io crate slog-scope 4.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate slog-scope 4.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cd15eb9dc35a6ab72b82ed9803d7107a99b6c801781681cf6b9a79edfeb36b7
[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" "7cd15eb9dc35a6ab72b82ed9803d7107a99b6c801781681cf6b9a79edfeb36b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cd15eb9dc35a6ab72b82ed9803d7107a99b6c801781681cf6b9a79edfeb36b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd15eb9dc35a6ab72b82ed9803d7107a99b6c801781681cf6b9a79edfeb36b7", kill_on_drop: false }`
[INFO] [stdout] 7cd15eb9dc35a6ab72b82ed9803d7107a99b6c801781681cf6b9a79edfeb36b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "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] 413ad9bffd77a3282a1060fca484ff3b2d82f8620afac1ce817f990d0c6d8b15
[INFO] running `Command { std: "docker" "start" "-a" "413ad9bffd77a3282a1060fca484ff3b2d82f8620afac1ce817f990d0c6d8b15", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling slog v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking isatty v0.1.8
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-scope v4.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking chrono v0.4.4
[INFO] [stderr]     Checking slog-term v2.0.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.99s
[INFO] running `Command { std: "docker" "inspect" "413ad9bffd77a3282a1060fca484ff3b2d82f8620afac1ce817f990d0c6d8b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413ad9bffd77a3282a1060fca484ff3b2d82f8620afac1ce817f990d0c6d8b15", kill_on_drop: false }`
[INFO] [stdout] 413ad9bffd77a3282a1060fca484ff3b2d82f8620afac1ce817f990d0c6d8b15