Dec 11 10:20:07.469 INFO checking ryota-sakamoto/scala against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 10:20:07.469 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 10:20:07.892 INFO [stdout] 2d59ba0cd8d1c506ab5747502d3e0905d51243f6253cf89afdd6dba5d8d73f9d
Dec 11 10:20:07.896 INFO running `"docker" "start" "-a" "2d59ba0cd8d1c506ab5747502d3e0905d51243f6253cf89afdd6dba5d8d73f9d"`
Dec 11 10:20:08.852 INFO [stderr] usermod: no changes
Dec 11 10:20:08.928 INFO [stderr]     Checking scala v0.1.0 (/source)
Dec 11 10:20:09.429 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 10:20:09.429 INFO [stderr]  --> src/main.rs:1:1
Dec 11 10:20:09.429 INFO [stderr]   |
Dec 11 10:20:09.429 INFO [stderr] 1 | #[macro_use]
Dec 11 10:20:09.429 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 10:20:09.429 INFO [stderr]   |
Dec 11 10:20:09.429 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 10:20:09.429 INFO [stderr] 
Dec 11 10:20:09.501 INFO [stderr] warning: unused `#[macro_use]` import
Dec 11 10:20:09.501 INFO [stderr]  --> src/main.rs:1:1
Dec 11 10:20:09.501 INFO [stderr]   |
Dec 11 10:20:09.501 INFO [stderr] 1 | #[macro_use]
Dec 11 10:20:09.501 INFO [stderr]   | ^^^^^^^^^^^^
Dec 11 10:20:09.504 INFO [stderr]   |
Dec 11 10:20:09.504 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 10:20:09.504 INFO [stderr] 
Dec 11 10:20:09.504 INFO [stderr] warning: function is never used: `e1`
Dec 11 10:20:09.504 INFO [stderr]   --> src/main.rs:27:1
Dec 11 10:20:09.504 INFO [stderr]    |
Dec 11 10:20:09.504 INFO [stderr] 27 | fn e1(n: u64) -> Either<String, String> {
Dec 11 10:20:09.504 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:20:09.504 INFO [stderr]    |
Dec 11 10:20:09.504 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:20:09.504 INFO [stderr] 
Dec 11 10:20:09.544 INFO [stderr] warning: function is never used: `e1`
Dec 11 10:20:09.544 INFO [stderr]   --> src/main.rs:27:1
Dec 11 10:20:09.544 INFO [stderr]    |
Dec 11 10:20:09.544 INFO [stderr] 27 | fn e1(n: u64) -> Either<String, String> {
Dec 11 10:20:09.544 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 10:20:09.544 INFO [stderr]    |
Dec 11 10:20:09.544 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 10:20:09.544 INFO [stderr] 
Dec 11 10:20:09.684 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Dec 11 10:20:09.686 INFO [stderr] su: No module specific data is present
Dec 11 10:20:10.042 INFO running `"docker" "inspect" "2d59ba0cd8d1c506ab5747502d3e0905d51243f6253cf89afdd6dba5d8d73f9d"`
Dec 11 10:20:10.127 INFO running `"docker" "rm" "-f" "2d59ba0cd8d1c506ab5747502d3e0905d51243f6253cf89afdd6dba5d8d73f9d"`
Dec 11 10:20:10.292 INFO [stdout] 2d59ba0cd8d1c506ab5747502d3e0905d51243f6253cf89afdd6dba5d8d73f9d