[INFO] fetching crate scrub_log 0.2.1...
[INFO] checking scrub_log-0.2.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate scrub_log 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate scrub_log 0.2.1 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 scrub_log 0.2.1
[INFO] finished tweaking crates.io crate scrub_log 0.2.1
[INFO] tweaked toml for crates.io crate scrub_log 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate scrub_log 0.2.1 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] [stderr]     Blocking waiting for file lock on package cache
[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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d398d69c2908118a9078dff2131c3640b09b25d8701c6977ffae767e810035f3
[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" "d398d69c2908118a9078dff2131c3640b09b25d8701c6977ffae767e810035f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d398d69c2908118a9078dff2131c3640b09b25d8701c6977ffae767e810035f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d398d69c2908118a9078dff2131c3640b09b25d8701c6977ffae767e810035f3", kill_on_drop: false }`
[INFO] [stdout] d398d69c2908118a9078dff2131c3640b09b25d8701c6977ffae767e810035f3
[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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/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] fa6864d264e2cd54d4a5ffea65f432ed15633de54f2a2abaf272b6d43d9118d0
[INFO] running `Command { std: "docker" "start" "-a" "fa6864d264e2cd54d4a5ffea65f432ed15633de54f2a2abaf272b6d43d9118d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.12
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking argv v0.1.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking scrub_log v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ref-cast-impl v0.2.7
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling inventory-impl v0.1.5
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling gflags-impl v0.3.2
[INFO] [stderr]     Checking ref-cast v0.2.7
[INFO] [stderr]     Checking inventory v0.1.5
[INFO] [stderr]     Checking gflags v0.3.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.43s
[INFO] running `Command { std: "docker" "inspect" "fa6864d264e2cd54d4a5ffea65f432ed15633de54f2a2abaf272b6d43d9118d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa6864d264e2cd54d4a5ffea65f432ed15633de54f2a2abaf272b6d43d9118d0", kill_on_drop: false }`
[INFO] [stdout] fa6864d264e2cd54d4a5ffea65f432ed15633de54f2a2abaf272b6d43d9118d0