Dec 19 13:12:29.825 INFO checking manfredlotz/checkutf8 against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:12:29.825 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/manfredlotz/checkutf8:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:12:30.428 INFO [stdout] e8d26337c03c7db500bb3ad390f451f2eccbae053726570796cedf5f0d46db82
Dec 19 13:12:30.431 INFO running `"docker" "start" "-a" "e8d26337c03c7db500bb3ad390f451f2eccbae053726570796cedf5f0d46db82"`
Dec 19 13:12:32.518 INFO [stderr]    Compiling syn v0.13.4
Dec 19 13:12:41.034 INFO [stderr]    Compiling structopt-derive v0.2.8
Dec 19 13:12:44.167 INFO [stderr]     Checking structopt v0.2.8
Dec 19 13:12:44.552 INFO [stderr]     Checking checkutf8 v0.9.0 (/opt/crater/workdir)
Dec 19 13:12:45.168 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 13:12:45.168 INFO [stderr]  --> src/main.rs:1:1
Dec 19 13:12:45.168 INFO [stderr]   |
Dec 19 13:12:45.168 INFO [stderr] 1 | #[macro_use]
Dec 19 13:12:45.168 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 13:12:45.168 INFO [stderr]   |
Dec 19 13:12:45.168 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:12:45.168 INFO [stderr] 
Dec 19 13:12:45.184 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 13:12:45.184 INFO [stderr]  --> src/main.rs:1:1
Dec 19 13:12:45.184 INFO [stderr]   |
Dec 19 13:12:45.184 INFO [stderr] 1 | #[macro_use]
Dec 19 13:12:45.184 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 13:12:45.184 INFO [stderr]   |
Dec 19 13:12:45.184 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:12:45.184 INFO [stderr] 
Dec 19 13:12:45.453 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.00s
Dec 19 13:12:46.268 INFO running `"docker" "inspect" "e8d26337c03c7db500bb3ad390f451f2eccbae053726570796cedf5f0d46db82"`
Dec 19 13:12:46.544 INFO running `"docker" "rm" "-f" "e8d26337c03c7db500bb3ad390f451f2eccbae053726570796cedf5f0d46db82"`
Dec 19 13:12:46.808 INFO [stdout] e8d26337c03c7db500bb3ad390f451f2eccbae053726570796cedf5f0d46db82