[INFO] fetching crate slog-scope 4.3.0...
[INFO] checking slog-scope-4.3.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate slog-scope 4.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate slog-scope 4.3.0 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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-4/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" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", 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] 521de48919cc64e97f54a24b704a2c5ffb9783e15f5a65ad0b3225dbacd21b92
[INFO] running `Command { std: "docker" "start" "-a" "521de48919cc64e97f54a24b704a2c5ffb9783e15f5a65ad0b3225dbacd21b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "521de48919cc64e97f54a24b704a2c5ffb9783e15f5a65ad0b3225dbacd21b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "521de48919cc64e97f54a24b704a2c5ffb9783e15f5a65ad0b3225dbacd21b92", kill_on_drop: false }`
[INFO] [stdout] 521de48919cc64e97f54a24b704a2c5ffb9783e15f5a65ad0b3225dbacd21b92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "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] 878b3c51863b29584c4dc8fb778e2cb6f25bb173c1454bd9534f987f1302f93d
[INFO] running `Command { std: "docker" "start" "-a" "878b3c51863b29584c4dc8fb778e2cb6f25bb173c1454bd9534f987f1302f93d", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking term v0.4.6
[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 5.46s
[INFO] running `Command { std: "docker" "inspect" "878b3c51863b29584c4dc8fb778e2cb6f25bb173c1454bd9534f987f1302f93d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "878b3c51863b29584c4dc8fb778e2cb6f25bb173c1454bd9534f987f1302f93d", kill_on_drop: false }`
[INFO] [stdout] 878b3c51863b29584c4dc8fb778e2cb6f25bb173c1454bd9534f987f1302f93d