Dec 12 22:34:54.777 INFO testing varzac/rust_collections against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 12 22:34:54.894 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 12 22:34:55.110 INFO [stdout] 88b14b8e8b1760b47dc53d941a9514c1a550fce95c8da810b01bd51f470f4c3c
Dec 12 22:34:55.167 INFO running `"docker" "start" "-a" "88b14b8e8b1760b47dc53d941a9514c1a550fce95c8da810b01bd51f470f4c3c"`
Dec 12 22:34:55.510 INFO [stderr] usermod: no changes
Dec 12 22:34:55.530 INFO [stderr] warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Dec 12 22:34:55.530 INFO [stderr] please set bin.path in Cargo.toml
Dec 12 22:34:55.535 INFO [stderr]    Compiling linked_list v0.0.1 (/source)
Dec 12 22:34:55.697 INFO [stderr] warning: method is never used: `delete_val`
Dec 12 22:34:55.697 INFO [stderr]   --> src/linked_list.rs:14:5
Dec 12 22:34:55.697 INFO [stderr]    |
Dec 12 22:34:55.697 INFO [stderr] 14 |     fn delete_val(&self, val: &T) -> Option<Rc<LinkedList<T>>> {
Dec 12 22:34:55.697 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:34:55.697 INFO [stderr]    |
Dec 12 22:34:55.697 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 22:34:55.697 INFO [stderr] 
Dec 12 22:34:55.697 INFO [stderr] warning: method is never used: `insert_val`
Dec 12 22:34:55.697 INFO [stderr]   --> src/linked_list.rs:38:5
Dec 12 22:34:55.697 INFO [stderr]    |
Dec 12 22:34:55.697 INFO [stderr] 38 |     fn insert_val(&self, val: T) -> LinkedList<T> {
Dec 12 22:34:55.697 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:34:55.697 INFO [stderr] 
Dec 12 22:34:55.697 INFO [stderr] warning: method is never used: `length`
Dec 12 22:34:55.697 INFO [stderr]   --> src/linked_list.rs:42:5
Dec 12 22:34:55.697 INFO [stderr]    |
Dec 12 22:34:55.697 INFO [stderr] 42 |     fn length(&self) -> i32 {
Dec 12 22:34:55.697 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:34:55.697 INFO [stderr] 
Dec 12 22:34:55.697 INFO [stderr] warning: method is never used: `find`
Dec 12 22:34:55.697 INFO [stderr]   --> src/linked_list.rs:66:5
Dec 12 22:34:55.697 INFO [stderr]    |
Dec 12 22:34:55.697 INFO [stderr] 66 |     fn find(&self, val: T) -> Option<i32> {
Dec 12 22:34:55.697 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 22:34:55.697 INFO [stderr] 
Dec 12 22:34:55.928 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 12 22:34:55.930 INFO [stderr] su: No module specific data is present
Dec 12 22:34:56.516 INFO running `"docker" "inspect" "88b14b8e8b1760b47dc53d941a9514c1a550fce95c8da810b01bd51f470f4c3c"`
Dec 12 22:34:56.856 INFO running `"docker" "rm" "-f" "88b14b8e8b1760b47dc53d941a9514c1a550fce95c8da810b01bd51f470f4c3c"`
Dec 12 22:34:57.252 INFO [stdout] 88b14b8e8b1760b47dc53d941a9514c1a550fce95c8da810b01bd51f470f4c3c
Dec 12 22:34:57.260 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 12 22:34:57.835 INFO [stdout] 6d2dcb0307385a3c49072b6d9cbbc17506705d3b147da424ad3cf31bbbfb3cc3
Dec 12 22:34:57.839 INFO running `"docker" "start" "-a" "6d2dcb0307385a3c49072b6d9cbbc17506705d3b147da424ad3cf31bbbfb3cc3"`
Dec 12 22:34:58.991 INFO [stderr] usermod: no changes
Dec 12 22:34:59.051 INFO [stderr] warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Dec 12 22:34:59.051 INFO [stderr] please set bin.path in Cargo.toml
Dec 12 22:34:59.051 INFO [stderr]    Compiling linked_list v0.0.1 (/source)
Dec 12 22:35:00.043 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 12 22:35:00.043 INFO [stderr] su: No module specific data is present
Dec 12 22:35:00.951 INFO running `"docker" "inspect" "6d2dcb0307385a3c49072b6d9cbbc17506705d3b147da424ad3cf31bbbfb3cc3"`
Dec 12 22:35:01.279 INFO running `"docker" "rm" "-f" "6d2dcb0307385a3c49072b6d9cbbc17506705d3b147da424ad3cf31bbbfb3cc3"`
Dec 12 22:35:01.563 INFO [stdout] 6d2dcb0307385a3c49072b6d9cbbc17506705d3b147da424ad3cf31bbbfb3cc3
Dec 12 22:35:01.567 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 12 22:35:02.023 INFO [stdout] 39d6fa65efa653114c27f06dd0c706f1db1020c008cf030fd40ececd7849698e
Dec 12 22:35:02.024 INFO running `"docker" "start" "-a" "39d6fa65efa653114c27f06dd0c706f1db1020c008cf030fd40ececd7849698e"`
Dec 12 22:35:03.223 INFO [stderr] usermod: no changes
Dec 12 22:35:03.283 INFO [stderr] warning: path `/source/src/linked_list.rs` was erroneously implicitly accepted for binary `linked_list`,
Dec 12 22:35:03.283 INFO [stderr] please set bin.path in Cargo.toml
Dec 12 22:35:03.283 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 12 22:35:03.283 INFO [stderr]      Running /target/debug/deps/linked_list-76c9feb6b5f4c30c
Dec 12 22:35:03.284 INFO [stdout] 
Dec 12 22:35:03.284 INFO [stdout] running 11 tests
Dec 12 22:35:03.284 INFO [stdout] test test_delete_found ... ok
Dec 12 22:35:03.284 INFO [stdout] test test_clone ... ok
Dec 12 22:35:03.284 INFO [stdout] test test_delete_not_found ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_insert_val ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_delete_only_element ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_get_oob ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_get ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_find_not_exists ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_eq ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_find_exists ... ok
Dec 12 22:35:03.303 INFO [stdout] test test_length ... ok
Dec 12 22:35:03.303 INFO [stdout] 
Dec 12 22:35:03.303 INFO [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 22:35:03.303 INFO [stdout] 
Dec 12 22:35:03.304 INFO [stderr] su: No module specific data is present
Dec 12 22:35:04.456 INFO running `"docker" "inspect" "39d6fa65efa653114c27f06dd0c706f1db1020c008cf030fd40ececd7849698e"`
Dec 12 22:35:04.776 INFO running `"docker" "rm" "-f" "39d6fa65efa653114c27f06dd0c706f1db1020c008cf030fd40ececd7849698e"`
Dec 12 22:35:05.127 INFO [stdout] 39d6fa65efa653114c27f06dd0c706f1db1020c008cf030fd40ececd7849698e