[INFO] crate peel 0.8.0 is already in cache
[INFO] extracting crate peel 0.8.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/peel/0.8.0
[INFO] extracting crate peel 0.8.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/peel/0.8.0
[INFO] validating manifest of peel-0.8.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of peel-0.8.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing peel-0.8.0
[INFO] finished frobbing peel-0.8.0
[INFO] frobbed toml for peel-0.8.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/peel/0.8.0/Cargo.toml
[INFO] started frobbing peel-0.8.0
[INFO] finished frobbing peel-0.8.0
[INFO] frobbed toml for peel-0.8.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/peel/0.8.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing peel-0.8.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/peel/0.8.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 25a0cfbf009372ea6bc126a4bb474826d08fcd9035a6b7ff1d35137d9445f5d5
[INFO] running `"docker" "start" "-a" "25a0cfbf009372ea6bc126a4bb474826d08fcd9035a6b7ff1d35137d9445f5d5"`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling mowl v1.3.0
[INFO] [stderr]    Compiling peel v0.8.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `log::LogLevel`
[INFO] [stderr]   --> src/lib.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 | use log::LogLevel;
[INFO] [stderr]    |     ^^^^^^^^^^^^^ no `LogLevel` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `LogLevel` in `log`
[INFO] [stderr]    --> src/lib.rs:238:38
[INFO] [stderr]     |
[INFO] [stderr] 238 |                 if log_enabled!(log::LogLevel::Trace) {
[INFO] [stderr]     |                                      ^^^^^^^^ could not find `LogLevel` in `log`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `peel`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "25a0cfbf009372ea6bc126a4bb474826d08fcd9035a6b7ff1d35137d9445f5d5"`
[INFO] running `"docker" "rm" "-f" "25a0cfbf009372ea6bc126a4bb474826d08fcd9035a6b7ff1d35137d9445f5d5"`
[INFO] [stdout] 25a0cfbf009372ea6bc126a4bb474826d08fcd9035a6b7ff1d35137d9445f5d5