Dec 05 16:01:19.398 INFO checking btree-0.1.0 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 16:01:19.399 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 16:01:19.670 INFO [stdout] ae7db84d2a35dedaa441b77cbda6e23d6f526003f6300e3d2a2fb89754716603
Dec 05 16:01:19.672 INFO running `"docker" "start" "-a" "ae7db84d2a35dedaa441b77cbda6e23d6f526003f6300e3d2a2fb89754716603"`
Dec 05 16:01:20.238 INFO [stderr] usermod: no changes
Dec 05 16:01:20.275 INFO [stderr] warning: `panic` setting is ignored for `test` profile
Dec 05 16:01:20.284 INFO [stderr]    Compiling raw_serde_derive v0.1.2
Dec 05 16:01:22.511 INFO [stderr]     Checking raw_serde v0.1.4
Dec 05 16:01:28.065 INFO [stderr]     Checking btree v0.1.0 (/source)
Dec 05 16:01:29.417 INFO [stderr] warning: unused variable: `x`
Dec 05 16:01:29.417 INFO [stderr]   --> src/lib.rs:26:13
Dec 05 16:01:29.417 INFO [stderr]    |
Dec 05 16:01:29.417 INFO [stderr] 26 |         let x = t.search(&i.to_string()).unwrap().unwrap();
Dec 05 16:01:29.417 INFO [stderr]    |             ^ help: consider using `_x` instead
Dec 05 16:01:29.417 INFO [stderr]    |
Dec 05 16:01:29.417 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 16:01:29.417 INFO [stderr] 
Dec 05 16:01:29.483 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.20s
Dec 05 16:01:29.483 INFO [stderr] su: No module specific data is present
Dec 05 16:01:29.846 INFO running `"docker" "inspect" "ae7db84d2a35dedaa441b77cbda6e23d6f526003f6300e3d2a2fb89754716603"`
Dec 05 16:01:29.912 INFO running `"docker" "rm" "-f" "ae7db84d2a35dedaa441b77cbda6e23d6f526003f6300e3d2a2fb89754716603"`
Dec 05 16:01:30.067 INFO [stdout] ae7db84d2a35dedaa441b77cbda6e23d6f526003f6300e3d2a2fb89754716603