[INFO] fetching crate slog-env-cfg 0.6.0...
[INFO] checking slog-env-cfg-0.6.0 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate slog-env-cfg 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate slog-env-cfg 0.6.0 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-env-cfg 0.6.0
[INFO] finished tweaking crates.io crate slog-env-cfg 0.6.0
[INFO] tweaked toml for crates.io crate slog-env-cfg 0.6.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate slog-env-cfg 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc9fb8d44f43ef48f7e90558d407f82f6ea03f0f895b88512a6489ebf1784190
[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" "cc9fb8d44f43ef48f7e90558d407f82f6ea03f0f895b88512a6489ebf1784190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc9fb8d44f43ef48f7e90558d407f82f6ea03f0f895b88512a6489ebf1784190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc9fb8d44f43ef48f7e90558d407f82f6ea03f0f895b88512a6489ebf1784190", kill_on_drop: false }`
[INFO] [stdout] cc9fb8d44f43ef48f7e90558d407f82f6ea03f0f895b88512a6489ebf1784190
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "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] 254938d4730a90557e006fdd6b4f3042ca84512f7b032f5d727e90b13d6d2642
[INFO] running `Command { std: "docker" "start" "-a" "254938d4730a90557e006fdd6b4f3042ca84512f7b032f5d727e90b13d6d2642", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling serde v1.0.97
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking serial_test v0.2.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking slog-scope v4.1.2
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking slog-term v2.4.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking slog-stdlog v4.0.0
[INFO] [stderr]     Checking slog-envlogger v2.2.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking slog-env-cfg v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serial_test_derive v0.2.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.09s
[INFO] running `Command { std: "docker" "inspect" "254938d4730a90557e006fdd6b4f3042ca84512f7b032f5d727e90b13d6d2642", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "254938d4730a90557e006fdd6b4f3042ca84512f7b032f5d727e90b13d6d2642", kill_on_drop: false }`
[INFO] [stdout] 254938d4730a90557e006fdd6b4f3042ca84512f7b032f5d727e90b13d6d2642