[INFO] crate fast-logger 0.6.0 is already in cache
[INFO] checking fast-logger-0.6.0 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate fast-logger 0.6.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fast-logger 0.6.0 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fast-logger 0.6.0
[INFO] finished tweaking crates.io crate fast-logger 0.6.0
[INFO] tweaked toml for crates.io crate fast-logger 0.6.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4bf92a96fca679de2e7fbcaf8bddbd4270fd740c2c599ee197f4bd3c5db6db46
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "4bf92a96fca679de2e7fbcaf8bddbd4270fd740c2c599ee197f4bd3c5db6db46"`
[INFO] [stderr]     Checking fast-logger v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking slog-async v2.5.0
[INFO] [stderr]     Checking slog-term v2.5.0
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr] error[E0603]: static `CHANNEL_SIZE` is private
[INFO] [stderr]    --> benches/benchmark.rs:2:42
[INFO] [stderr]     |
[INFO] [stderr] 2   | use fast_logger::{info, Generic, Logger, CHANNEL_SIZE};
[INFO] [stderr]     |                                          ^^^^^^^^^^^^ private static
[INFO] [stderr]     |
[INFO] [stderr] note: the static `CHANNEL_SIZE` is defined here
[INFO] [stderr]    --> /opt/rustwide/workdir/lib.rs:419:1
[INFO] [stderr]     |
[INFO] [stderr] 419 | static CHANNEL_SIZE: usize = 30_000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0603`.
[INFO] [stderr] error: could not compile `fast-logger`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4bf92a96fca679de2e7fbcaf8bddbd4270fd740c2c599ee197f4bd3c5db6db46"`
[INFO] running `"docker" "rm" "-f" "4bf92a96fca679de2e7fbcaf8bddbd4270fd740c2c599ee197f4bd3c5db6db46"`
[INFO] [stdout] 4bf92a96fca679de2e7fbcaf8bddbd4270fd740c2c599ee197f4bd3c5db6db46