Dec 11 13:31:52.406 INFO checking mitoma/rust_simple_http_server against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 13:31:52.406 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 13:31:52.825 INFO [stdout] a1d8ae203676451a24690309e0b3b163fa78faf7d26125e9b4d18a10766d347d
Dec 11 13:31:52.827 INFO running `"docker" "start" "-a" "a1d8ae203676451a24690309e0b3b163fa78faf7d26125e9b4d18a10766d347d"`
Dec 11 13:31:54.399 INFO [stderr] usermod: no changes
Dec 11 13:31:54.452 INFO [stderr]     Checking rust_simple_http_server v0.1.0 (/source)
Dec 11 13:31:54.839 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:31:54.839 INFO [stderr]   --> src/main.rs:13:9
Dec 11 13:31:54.839 INFO [stderr]    |
Dec 11 13:31:54.839 INFO [stderr] 13 |         stream.map(echo);
Dec 11 13:31:54.839 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 11 13:31:54.839 INFO [stderr]    |
Dec 11 13:31:54.839 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:31:54.839 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:31:54.839 INFO [stderr] 
Dec 11 13:31:54.972 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:31:54.972 INFO [stderr]   --> src/main.rs:13:9
Dec 11 13:31:54.972 INFO [stderr]    |
Dec 11 13:31:54.972 INFO [stderr] 13 |         stream.map(echo);
Dec 11 13:31:54.972 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 11 13:31:54.972 INFO [stderr]    |
Dec 11 13:31:54.972 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:31:54.972 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:31:54.972 INFO [stderr] 
Dec 11 13:31:55.000 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 11 13:31:55.000 INFO [stderr] su: No module specific data is present
Dec 11 13:31:56.018 INFO running `"docker" "inspect" "a1d8ae203676451a24690309e0b3b163fa78faf7d26125e9b4d18a10766d347d"`
Dec 11 13:31:56.311 INFO running `"docker" "rm" "-f" "a1d8ae203676451a24690309e0b3b163fa78faf7d26125e9b4d18a10766d347d"`
Dec 11 13:31:56.608 INFO [stdout] a1d8ae203676451a24690309e0b3b163fa78faf7d26125e9b4d18a10766d347d