Dec 19 12:50:50.167 INFO checking mdaffin/scribe against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:50:50.167 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mdaffin/scribe:/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:50:50.770 INFO [stdout] e30852f9c7a1005a849b194be32cf0bf84e736ee791fea6cc2b238db9350ecce
Dec 19 12:50:50.772 INFO running `"docker" "start" "-a" "e30852f9c7a1005a849b194be32cf0bf84e736ee791fea6cc2b238db9350ecce"`
Dec 19 12:50:53.038 INFO [stderr]     Checking uuid v0.6.5
Dec 19 12:50:53.040 INFO [stderr]     Checking regex v0.2.11
Dec 19 12:50:53.044 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 19 12:50:53.045 INFO [stderr]     Checking failure v0.1.1
Dec 19 12:50:53.045 INFO [stderr]     Checking simplelog v0.5.2
Dec 19 12:50:59.064 INFO [stderr]     Checking os_type v2.0.0
Dec 19 12:50:59.528 INFO [stderr]     Checking structopt v0.2.10
Dec 19 12:50:59.861 INFO [stderr]     Checking human-panic v1.0.0
Dec 19 12:51:00.772 INFO [stderr]     Checking scribe v0.1.0 (/opt/crater/workdir)
Dec 19 12:51:01.998 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 12:51:01.998 INFO [stderr]  --> src/main.rs:6:1
Dec 19 12:51:01.998 INFO [stderr]   |
Dec 19 12:51:01.998 INFO [stderr] 6 | #[macro_use]
Dec 19 12:51:01.998 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 12:51:01.998 INFO [stderr]   |
Dec 19 12:51:01.998 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:51:01.998 INFO [stderr] 
Dec 19 12:51:02.074 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 12:51:02.074 INFO [stderr]  --> src/main.rs:6:1
Dec 19 12:51:02.074 INFO [stderr]   |
Dec 19 12:51:02.075 INFO [stderr] 6 | #[macro_use]
Dec 19 12:51:02.075 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 12:51:02.075 INFO [stderr]   |
Dec 19 12:51:02.075 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:51:02.075 INFO [stderr] 
Dec 19 12:51:02.558 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:51:02.558 INFO [stderr]    --> src/block_dev.rs:367:13
Dec 19 12:51:02.558 INFO [stderr]     |
Dec 19 12:51:02.558 INFO [stderr] 367 |             run_checks(&mut blkdev);
Dec 19 12:51:02.558 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:02.558 INFO [stderr]     |
Dec 19 12:51:02.558 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 12:51:02.558 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:51:02.558 INFO [stderr] 
Dec 19 12:51:02.632 INFO [stderr] warning: variant is never constructed: `ExternalDrive`
Dec 19 12:51:02.632 INFO [stderr]   --> src/block_dev.rs:49:5
Dec 19 12:51:02.632 INFO [stderr]    |
Dec 19 12:51:02.632 INFO [stderr] 49 |     ExternalDrive,
Dec 19 12:51:02.632 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 12:51:02.632 INFO [stderr]    |
Dec 19 12:51:02.632 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 12:51:02.632 INFO [stderr] 
Dec 19 12:51:02.676 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.88s
Dec 19 12:51:03.287 INFO running `"docker" "inspect" "e30852f9c7a1005a849b194be32cf0bf84e736ee791fea6cc2b238db9350ecce"`
Dec 19 12:51:03.638 INFO running `"docker" "rm" "-f" "e30852f9c7a1005a849b194be32cf0bf84e736ee791fea6cc2b238db9350ecce"`
Dec 19 12:51:03.928 INFO [stdout] e30852f9c7a1005a849b194be32cf0bf84e736ee791fea6cc2b238db9350ecce