Dec 14 06:31:02.447 INFO testing Razakhel/rs-ds against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 14 06:31:02.447 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt build --frozen" "-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 14 06:31:02.635 INFO [stdout] f8abd57d736f0e1fe80866f119e6ecd1eefc291ec1411dc33cd401cf9681844e
Dec 14 06:31:02.637 INFO running `"docker" "start" "-a" "f8abd57d736f0e1fe80866f119e6ecd1eefc291ec1411dc33cd401cf9681844e"`
Dec 14 06:31:03.084 INFO [stderr] usermod: no changes
Dec 14 06:31:03.123 INFO [stderr]    Compiling rs-ds v0.1.0 (/source)
Dec 14 06:31:03.499 INFO [stderr] warning: struct is never constructed: `IntoIter`
Dec 14 06:31:03.499 INFO [stderr]   --> src/linked_list.rs:16:1
Dec 14 06:31:03.499 INFO [stderr]    |
Dec 14 06:31:03.499 INFO [stderr] 16 | pub struct IntoIter<T>(List<T>);
Dec 14 06:31:03.499 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 06:31:03.499 INFO [stderr]    |
Dec 14 06:31:03.499 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 14 06:31:03.499 INFO [stderr] 
Dec 14 06:31:03.499 INFO [stderr] warning: method is never used: `peek`
Dec 14 06:31:03.499 INFO [stderr]   --> src/linked_list.rs:38:3
Dec 14 06:31:03.499 INFO [stderr]    |
Dec 14 06:31:03.499 INFO [stderr] 38 |   pub fn peek(&self) -> Option<&T> {
Dec 14 06:31:03.499 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 06:31:03.499 INFO [stderr] 
Dec 14 06:31:03.499 INFO [stderr] warning: method is never used: `peek_mut`
Dec 14 06:31:03.499 INFO [stderr]   --> src/linked_list.rs:44:3
Dec 14 06:31:03.499 INFO [stderr]    |
Dec 14 06:31:03.499 INFO [stderr] 44 |   pub fn peek_mut(&mut self) -> Option<&mut T> {
Dec 14 06:31:03.499 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 06:31:03.499 INFO [stderr] 
Dec 14 06:31:03.499 INFO [stderr] warning: method is never used: `into_iter`
Dec 14 06:31:03.499 INFO [stderr]   --> src/linked_list.rs:50:3
Dec 14 06:31:03.499 INFO [stderr]    |
Dec 14 06:31:03.499 INFO [stderr] 50 |   pub fn into_iter(self) -> IntoIter<T> {
Dec 14 06:31:03.499 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 14 06:31:03.499 INFO [stderr] 
Dec 14 06:31:03.719 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 14 06:31:03.721 INFO [stderr] su: No module specific data is present
Dec 14 06:31:04.013 INFO running `"docker" "inspect" "f8abd57d736f0e1fe80866f119e6ecd1eefc291ec1411dc33cd401cf9681844e"`
Dec 14 06:31:04.124 INFO running `"docker" "rm" "-f" "f8abd57d736f0e1fe80866f119e6ecd1eefc291ec1411dc33cd401cf9681844e"`
Dec 14 06:31:04.247 INFO [stdout] f8abd57d736f0e1fe80866f119e6ecd1eefc291ec1411dc33cd401cf9681844e
Dec 14 06:31:04.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen --no-run" "-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 14 06:31:04.487 INFO [stdout] 885f74f9873ec390e69cceef541a64a76192f0e6dd46574a0332a7ab1b828ea8
Dec 14 06:31:04.488 INFO running `"docker" "start" "-a" "885f74f9873ec390e69cceef541a64a76192f0e6dd46574a0332a7ab1b828ea8"`
Dec 14 06:31:04.963 INFO [stderr] usermod: no changes
Dec 14 06:31:04.988 INFO [stderr]    Compiling rs-ds v0.1.0 (/source)
Dec 14 06:31:05.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Dec 14 06:31:05.816 INFO [stderr] su: No module specific data is present
Dec 14 06:31:06.110 INFO running `"docker" "inspect" "885f74f9873ec390e69cceef541a64a76192f0e6dd46574a0332a7ab1b828ea8"`
Dec 14 06:31:06.297 INFO running `"docker" "rm" "-f" "885f74f9873ec390e69cceef541a64a76192f0e6dd46574a0332a7ab1b828ea8"`
Dec 14 06:31:06.484 INFO [stdout] 885f74f9873ec390e69cceef541a64a76192f0e6dd46574a0332a7ab1b828ea8
Dec 14 06:31:06.484 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-alt test --frozen" "-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 14 06:31:06.685 INFO [stdout] 7e0cf21c1d0b32b9083299b51f941bb609a771e1d5ba15911e835ddec8ddf55e
Dec 14 06:31:06.686 INFO running `"docker" "start" "-a" "7e0cf21c1d0b32b9083299b51f941bb609a771e1d5ba15911e835ddec8ddf55e"`
Dec 14 06:31:07.080 INFO [stderr] usermod: no changes
Dec 14 06:31:07.080 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
Dec 14 06:31:07.080 INFO [stderr]      Running /target/debug/deps/rs_ds-7adc2535241fe0d8
Dec 14 06:31:07.080 INFO [stderr] su: No module specific data is present
Dec 14 06:31:07.080 INFO [stdout] 
Dec 14 06:31:07.080 INFO [stdout] running 3 tests
Dec 14 06:31:07.080 INFO [stdout] test linked_list::test::peek ... ok
Dec 14 06:31:07.080 INFO [stdout] test linked_list::test::into_iter ... ok
Dec 14 06:31:07.080 INFO [stdout] test linked_list::test::push_pop ... ok
Dec 14 06:31:07.080 INFO [stdout] 
Dec 14 06:31:07.080 INFO [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 06:31:07.080 INFO [stdout] 
Dec 14 06:31:07.380 INFO running `"docker" "inspect" "7e0cf21c1d0b32b9083299b51f941bb609a771e1d5ba15911e835ddec8ddf55e"`
Dec 14 06:31:07.506 INFO running `"docker" "rm" "-f" "7e0cf21c1d0b32b9083299b51f941bb609a771e1d5ba15911e835ddec8ddf55e"`
Dec 14 06:31:07.693 INFO [stdout] 7e0cf21c1d0b32b9083299b51f941bb609a771e1d5ba15911e835ddec8ddf55e