[INFO] fetching crate preftool-env 0.2.0...
[INFO] checking preftool-env-0.2.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate preftool-env 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate preftool-env 0.2.0 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 preftool-env 0.2.0
[INFO] finished tweaking crates.io crate preftool-env 0.2.0
[INFO] tweaked toml for crates.io crate preftool-env 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 5aa8e3d3de4f9051e89c4a72fa505caa93fb5e84c36fb5c5c9fafaaed3f5916a
[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" "5aa8e3d3de4f9051e89c4a72fa505caa93fb5e84c36fb5c5c9fafaaed3f5916a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5aa8e3d3de4f9051e89c4a72fa505caa93fb5e84c36fb5c5c9fafaaed3f5916a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aa8e3d3de4f9051e89c4a72fa505caa93fb5e84c36fb5c5c9fafaaed3f5916a", kill_on_drop: false }`
[INFO] [stdout] 5aa8e3d3de4f9051e89c4a72fa505caa93fb5e84c36fb5c5c9fafaaed3f5916a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 033a01e5d8cac3ceec5a537632afea52934592c31ddc01f711257d7ffccf76eb
[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" "033a01e5d8cac3ceec5a537632afea52934592c31ddc01f711257d7ffccf76eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking arc-swap v1.2.0
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking slog-scope v4.4.0
[INFO] [stderr]     Checking slog-stdlog v3.0.5
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling caseless v0.2.1
[INFO] [stderr]     Checking preftool v0.2.0
[INFO] [stderr]     Checking preftool-env v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.87s
[INFO] running `Command { std: "docker" "inspect" "033a01e5d8cac3ceec5a537632afea52934592c31ddc01f711257d7ffccf76eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "033a01e5d8cac3ceec5a537632afea52934592c31ddc01f711257d7ffccf76eb", kill_on_drop: false }`
[INFO] [stdout] 033a01e5d8cac3ceec5a537632afea52934592c31ddc01f711257d7ffccf76eb