Dec 15 23:19:22.391 INFO testing acid-state-0.2.3 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 23:19:22.392 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 15 23:19:22.578 INFO [stdout] 533766f1d65eae4a60de935fb57c6edaa7930e9d70b9268402e8f014f84d3005
Dec 15 23:19:22.581 INFO running `"docker" "start" "-a" "533766f1d65eae4a60de935fb57c6edaa7930e9d70b9268402e8f014f84d3005"`
Dec 15 23:19:23.307 INFO [stderr] usermod: no changes
Dec 15 23:19:23.355 INFO [stderr]    Compiling acid-state v0.2.3 (/source)
Dec 15 23:19:24.112 INFO [stderr] warning: unused `#[macro_use]` import
Dec 15 23:19:24.112 INFO [stderr]   --> src/lib.rs:49:1
Dec 15 23:19:24.112 INFO [stderr]    |
Dec 15 23:19:24.112 INFO [stderr] 49 | #[macro_use]
Dec 15 23:19:24.112 INFO [stderr]    | ^^^^^^^^^^^^
Dec 15 23:19:24.112 INFO [stderr]    |
Dec 15 23:19:24.112 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 15 23:19:24.112 INFO [stderr] 
Dec 15 23:19:24.150 INFO [stderr] warning: method is never used: `clear`
Dec 15 23:19:24.150 INFO [stderr]   --> src/wrapper_structs.rs:54:5
Dec 15 23:19:24.150 INFO [stderr]    |
Dec 15 23:19:24.150 INFO [stderr] 54 |     fn clear(&self) -> io::Result<()> {
Dec 15 23:19:24.150 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 23:19:24.150 INFO [stderr]    |
Dec 15 23:19:24.150 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 23:19:24.150 INFO [stderr] 
Dec 15 23:19:24.156 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 23:19:24.156 INFO [stderr]   --> src/wrapper_structs.rs:70:9
Dec 15 23:19:24.156 INFO [stderr]    |
Dec 15 23:19:24.156 INFO [stderr] 70 |         f.sync_all();
Dec 15 23:19:24.156 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 15 23:19:24.156 INFO [stderr]    |
Dec 15 23:19:24.156 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 15 23:19:24.156 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 23:19:24.156 INFO [stderr] 
Dec 15 23:19:24.156 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 23:19:24.156 INFO [stderr]   --> src/wrapper_structs.rs:88:9
Dec 15 23:19:24.156 INFO [stderr]    |
Dec 15 23:19:24.156 INFO [stderr] 88 |         self.write();
Dec 15 23:19:24.156 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 15 23:19:24.156 INFO [stderr]    |
Dec 15 23:19:24.156 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 23:19:24.156 INFO [stderr] 
Dec 15 23:19:24.170 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Dec 15 23:19:24.173 INFO [stderr] su: No module specific data is present
Dec 15 23:19:24.445 INFO running `"docker" "inspect" "533766f1d65eae4a60de935fb57c6edaa7930e9d70b9268402e8f014f84d3005"`
Dec 15 23:19:24.544 INFO running `"docker" "rm" "-f" "533766f1d65eae4a60de935fb57c6edaa7930e9d70b9268402e8f014f84d3005"`
Dec 15 23:19:24.683 INFO [stdout] 533766f1d65eae4a60de935fb57c6edaa7930e9d70b9268402e8f014f84d3005
Dec 15 23:19:24.689 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-1/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 15 23:19:24.884 INFO [stdout] 2b4832c9c1376c23a4795a65758a0346971ed2fde5722dd26469242c38bf28ca
Dec 15 23:19:24.886 INFO running `"docker" "start" "-a" "2b4832c9c1376c23a4795a65758a0346971ed2fde5722dd26469242c38bf28ca"`
Dec 15 23:19:25.310 INFO [stderr] usermod: no changes
Dec 15 23:19:25.343 INFO [stderr]    Compiling acid-state v0.2.3 (/source)
Dec 15 23:19:26.347 INFO [stderr] warning: unused `#[macro_use]` import
Dec 15 23:19:26.347 INFO [stderr]   --> src/lib.rs:49:1
Dec 15 23:19:26.347 INFO [stderr]    |
Dec 15 23:19:26.347 INFO [stderr] 49 | #[macro_use]
Dec 15 23:19:26.347 INFO [stderr]    | ^^^^^^^^^^^^
Dec 15 23:19:26.347 INFO [stderr]    |
Dec 15 23:19:26.347 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 15 23:19:26.347 INFO [stderr] 
Dec 15 23:19:26.403 INFO [stderr] warning: method is never used: `clear`
Dec 15 23:19:26.403 INFO [stderr]   --> src/wrapper_structs.rs:54:5
Dec 15 23:19:26.403 INFO [stderr]    |
Dec 15 23:19:26.403 INFO [stderr] 54 |     fn clear(&self) -> io::Result<()> {
Dec 15 23:19:26.403 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 15 23:19:26.403 INFO [stderr]    |
Dec 15 23:19:26.403 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 15 23:19:26.403 INFO [stderr] 
Dec 15 23:19:26.411 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 23:19:26.411 INFO [stderr]   --> src/wrapper_structs.rs:70:9
Dec 15 23:19:26.411 INFO [stderr]    |
Dec 15 23:19:26.411 INFO [stderr] 70 |         f.sync_all();
Dec 15 23:19:26.411 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 15 23:19:26.411 INFO [stderr]    |
Dec 15 23:19:26.411 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 15 23:19:26.411 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 23:19:26.411 INFO [stderr] 
Dec 15 23:19:26.411 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 15 23:19:26.411 INFO [stderr]   --> src/wrapper_structs.rs:88:9
Dec 15 23:19:26.411 INFO [stderr]    |
Dec 15 23:19:26.411 INFO [stderr] 88 |         self.write();
Dec 15 23:19:26.411 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 15 23:19:26.411 INFO [stderr]    |
Dec 15 23:19:26.411 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 15 23:19:26.411 INFO [stderr] 
Dec 15 23:19:26.543 INFO [stderr] warning: variable does not need to be mutable
Dec 15 23:19:26.543 INFO [stderr]   --> test/test.rs:28:17
Dec 15 23:19:26.543 INFO [stderr]    |
Dec 15 23:19:26.543 INFO [stderr] 28 |             let mut current = a.entry(key).or_insert(0);
Dec 15 23:19:26.543 INFO [stderr]    |                 ----^^^^^^^
Dec 15 23:19:26.543 INFO [stderr]    |                 |
Dec 15 23:19:26.543 INFO [stderr]    |                 help: remove this `mut`
Dec 15 23:19:26.543 INFO [stderr]    |
Dec 15 23:19:26.543 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 15 23:19:26.543 INFO [stderr] 
Dec 15 23:19:27.405 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.08s
Dec 15 23:19:27.408 INFO [stderr] su: No module specific data is present
Dec 15 23:19:27.685 INFO running `"docker" "inspect" "2b4832c9c1376c23a4795a65758a0346971ed2fde5722dd26469242c38bf28ca"`
Dec 15 23:19:27.777 INFO running `"docker" "rm" "-f" "2b4832c9c1376c23a4795a65758a0346971ed2fde5722dd26469242c38bf28ca"`
Dec 15 23:19:27.839 INFO [stdout] 2b4832c9c1376c23a4795a65758a0346971ed2fde5722dd26469242c38bf28ca