[INFO] fetching crate rmesg 0.8.0...
[INFO] checking rmesg-0.8.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate rmesg 0.8.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate rmesg 0.8.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rmesg 0.8.0
[INFO] finished tweaking crates.io crate rmesg 0.8.0
[INFO] tweaked toml for crates.io crate rmesg 0.8.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate rmesg 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f0ea47e798a639a1b3e06ac3ceab8c944e07db3a03f25db8178af41e090e9c86
[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" "f0ea47e798a639a1b3e06ac3ceab8c944e07db3a03f25db8178af41e090e9c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f0ea47e798a639a1b3e06ac3ceab8c944e07db3a03f25db8178af41e090e9c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0ea47e798a639a1b3e06ac3ceab8c944e07db3a03f25db8178af41e090e9c86", kill_on_drop: false }`
[INFO] [stdout] f0ea47e798a639a1b3e06ac3ceab8c944e07db3a03f25db8178af41e090e9c86
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a19b2739ebff1fe05fb9e3e2b955c8f0ab9f9b93b1d3bddc83e2412e7abfc1e4
[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" "a19b2739ebff1fe05fb9e3e2b955c8f0ab9f9b93b1d3bddc83e2412e7abfc1e4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.5
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling enum-display-derive v0.1.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking rmesg v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `kernel_log_timestamps_enable`
[INFO] [stdout]    --> src/lib.rs:336:9
[INFO] [stdout]     |
[INFO] [stdout] 336 |         kernel_log_timestamps_enable, rmesg, safely_wrapped_klogctl, KLogType, RMesgLinesIterator,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.90s
[INFO] running `Command { std: "docker" "inspect" "a19b2739ebff1fe05fb9e3e2b955c8f0ab9f9b93b1d3bddc83e2412e7abfc1e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a19b2739ebff1fe05fb9e3e2b955c8f0ab9f9b93b1d3bddc83e2412e7abfc1e4", kill_on_drop: false }`
[INFO] [stdout] a19b2739ebff1fe05fb9e3e2b955c8f0ab9f9b93b1d3bddc83e2412e7abfc1e4