Dec 11 13:50:34.742 INFO checking mdaffin/scribe against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:50:34.742 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 13:50:35.306 INFO [stdout] 09b9e2576fa1d2e76bb0a98c254e5afba09520911751a80edd0a4b50fe25d7bd
Dec 11 13:50:35.308 INFO running `"docker" "start" "-a" "09b9e2576fa1d2e76bb0a98c254e5afba09520911751a80edd0a4b50fe25d7bd"`
Dec 11 13:50:37.275 INFO [stderr] usermod: no changes
Dec 11 13:50:37.586 INFO [stderr]    Compiling structopt-derive v0.2.10
Dec 11 13:50:37.587 INFO [stderr]     Checking chrono v0.4.3
Dec 11 13:50:42.345 INFO [stderr]     Checking simplelog v0.5.2
Dec 11 13:50:43.104 INFO [stderr]     Checking structopt v0.2.10
Dec 11 13:50:43.902 INFO [stderr]     Checking scribe v0.1.0 (/source)
Dec 11 13:50:47.845 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 13:50:47.845 INFO [stderr]  --> src/main.rs:6:1
Dec 11 13:50:47.845 INFO [stderr]   |
Dec 11 13:50:47.845 INFO [stderr] 6 | #[macro_use]
Dec 11 13:50:47.845 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 13:50:47.845 INFO [stderr]   |
Dec 11 13:50:47.845 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:50:47.845 INFO [stderr] 
Dec 11 13:50:47.972 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 13:50:47.972 INFO [stderr]  --> src/main.rs:6:1
Dec 11 13:50:47.972 INFO [stderr]   |
Dec 11 13:50:47.972 INFO [stderr] 6 | #[macro_use]
Dec 11 13:50:47.972 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 13:50:47.973 INFO [stderr]   |
Dec 11 13:50:47.973 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 13:50:47.973 INFO [stderr] 
Dec 11 13:50:48.252 INFO [stderr] warning: variant is never constructed: `ExternalDrive`
Dec 11 13:50:48.253 INFO [stderr]   --> src/block_dev.rs:49:5
Dec 11 13:50:48.253 INFO [stderr]    |
Dec 11 13:50:48.253 INFO [stderr] 49 |     ExternalDrive,
Dec 11 13:50:48.253 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 11 13:50:48.254 INFO [stderr]    |
Dec 11 13:50:48.254 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 13:50:48.254 INFO [stderr] 
Dec 11 13:50:48.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:50:48.492 INFO [stderr]    --> src/block_dev.rs:367:13
Dec 11 13:50:48.492 INFO [stderr]     |
Dec 11 13:50:48.492 INFO [stderr] 367 |             run_checks(&mut blkdev);
Dec 11 13:50:48.492 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 13:50:48.492 INFO [stderr]     |
Dec 11 13:50:48.492 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 13:50:48.492 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:50:48.492 INFO [stderr] 
Dec 11 13:50:48.528 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.22s
Dec 11 13:50:48.544 INFO [stderr] su: No module specific data is present
Dec 11 13:50:49.615 INFO running `"docker" "inspect" "09b9e2576fa1d2e76bb0a98c254e5afba09520911751a80edd0a4b50fe25d7bd"`
Dec 11 13:50:50.048 INFO running `"docker" "rm" "-f" "09b9e2576fa1d2e76bb0a98c254e5afba09520911751a80edd0a4b50fe25d7bd"`
Dec 11 13:50:50.312 INFO [stdout] 09b9e2576fa1d2e76bb0a98c254e5afba09520911751a80edd0a4b50fe25d7bd