[INFO] fetching crate internment 0.4.1...
[INFO] checking internment-0.4.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate internment 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate internment 0.4.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate internment 0.4.1
[INFO] finished tweaking crates.io crate internment 0.4.1
[INFO] tweaked toml for crates.io crate internment 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate internment 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32a4f8ddca0de5d4ed41611b4c723df542fbdc44b6f34862a386e59c98bf1965
[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" "32a4f8ddca0de5d4ed41611b4c723df542fbdc44b6f34862a386e59c98bf1965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32a4f8ddca0de5d4ed41611b4c723df542fbdc44b6f34862a386e59c98bf1965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a4f8ddca0de5d4ed41611b4c723df542fbdc44b6f34862a386e59c98bf1965", kill_on_drop: false }`
[INFO] [stdout] 32a4f8ddca0de5d4ed41611b4c723df542fbdc44b6f34862a386e59c98bf1965
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8f12c8ce6ca657faf1184bdf7c0f1a3d597428f7a50f9576aa02b85a15b5ca4
[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" "a8f12c8ce6ca657faf1184bdf7c0f1a3d597428f7a50f9576aa02b85a15b5ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking ahash v0.4.5
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking state v0.4.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking easybench v1.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking tinyset v0.4.4
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking arc-interner v0.5.0
[INFO] [stderr]     Checking internment v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.46s
[INFO] running `Command { std: "docker" "inspect" "a8f12c8ce6ca657faf1184bdf7c0f1a3d597428f7a50f9576aa02b85a15b5ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f12c8ce6ca657faf1184bdf7c0f1a3d597428f7a50f9576aa02b85a15b5ca4", kill_on_drop: false }`
[INFO] [stdout] a8f12c8ce6ca657faf1184bdf7c0f1a3d597428f7a50f9576aa02b85a15b5ca4