Nov 29 05:02:06.082 INFO checking acid-state-0.2.3 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 29 05:02:06.082 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-7/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 29 05:02:06.392 INFO [stdout] 0eae774fcf0340cdee9fce5438e8b068094281bc43a144f302adee66588e55ac
Nov 29 05:02:06.398 INFO running `"docker" "start" "-a" "0eae774fcf0340cdee9fce5438e8b068094281bc43a144f302adee66588e55ac"`
Nov 29 05:02:07.024 INFO [stderr] usermod: no changes
Nov 29 05:02:07.069 INFO [stderr]     Checking acid-state v0.2.3 (/source)
Nov 29 05:02:08.165 INFO [stderr] warning: unused `#[macro_use]` import
Nov 29 05:02:08.165 INFO [stderr]   --> src/lib.rs:49:1
Nov 29 05:02:08.165 INFO [stderr]    |
Nov 29 05:02:08.165 INFO [stderr] 49 | #[macro_use]
Nov 29 05:02:08.165 INFO [stderr]    | ^^^^^^^^^^^^
Nov 29 05:02:08.165 INFO [stderr]    |
Nov 29 05:02:08.165 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 05:02:08.165 INFO [stderr] 
Nov 29 05:02:08.228 INFO [stderr] warning: method is never used: `clear`
Nov 29 05:02:08.228 INFO [stderr]   --> src/wrapper_structs.rs:54:5
Nov 29 05:02:08.228 INFO [stderr]    |
Nov 29 05:02:08.228 INFO [stderr] 54 |     fn clear(&self) -> io::Result<()> {
Nov 29 05:02:08.228 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 05:02:08.228 INFO [stderr]    |
Nov 29 05:02:08.228 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 05:02:08.228 INFO [stderr] 
Nov 29 05:02:08.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 05:02:08.228 INFO [stderr]   --> src/wrapper_structs.rs:70:9
Nov 29 05:02:08.228 INFO [stderr]    |
Nov 29 05:02:08.228 INFO [stderr] 70 |         f.sync_all();
Nov 29 05:02:08.228 INFO [stderr]    |         ^^^^^^^^^^^^^
Nov 29 05:02:08.228 INFO [stderr]    |
Nov 29 05:02:08.228 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 05:02:08.228 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 05:02:08.228 INFO [stderr] 
Nov 29 05:02:08.228 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 05:02:08.228 INFO [stderr]   --> src/wrapper_structs.rs:88:9
Nov 29 05:02:08.228 INFO [stderr]    |
Nov 29 05:02:08.228 INFO [stderr] 88 |         self.write();
Nov 29 05:02:08.228 INFO [stderr]    |         ^^^^^^^^^^^^^
Nov 29 05:02:08.228 INFO [stderr]    |
Nov 29 05:02:08.228 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 05:02:08.228 INFO [stderr] 
Nov 29 05:02:08.400 INFO [stderr] warning: unused `#[macro_use]` import
Nov 29 05:02:08.400 INFO [stderr]   --> src/lib.rs:49:1
Nov 29 05:02:08.400 INFO [stderr]    |
Nov 29 05:02:08.400 INFO [stderr] 49 | #[macro_use]
Nov 29 05:02:08.400 INFO [stderr]    | ^^^^^^^^^^^^
Nov 29 05:02:08.400 INFO [stderr]    |
Nov 29 05:02:08.400 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 05:02:08.400 INFO [stderr] 
Nov 29 05:02:08.464 INFO [stderr] warning: method is never used: `clear`
Nov 29 05:02:08.464 INFO [stderr]   --> src/wrapper_structs.rs:54:5
Nov 29 05:02:08.464 INFO [stderr]    |
Nov 29 05:02:08.464 INFO [stderr] 54 |     fn clear(&self) -> io::Result<()> {
Nov 29 05:02:08.464 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 05:02:08.464 INFO [stderr]    |
Nov 29 05:02:08.464 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 05:02:08.464 INFO [stderr] 
Nov 29 05:02:08.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 05:02:08.473 INFO [stderr]   --> src/wrapper_structs.rs:70:9
Nov 29 05:02:08.473 INFO [stderr]    |
Nov 29 05:02:08.473 INFO [stderr] 70 |         f.sync_all();
Nov 29 05:02:08.473 INFO [stderr]    |         ^^^^^^^^^^^^^
Nov 29 05:02:08.473 INFO [stderr]    |
Nov 29 05:02:08.473 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 05:02:08.473 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 05:02:08.473 INFO [stderr] 
Nov 29 05:02:08.473 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 05:02:08.473 INFO [stderr]   --> src/wrapper_structs.rs:88:9
Nov 29 05:02:08.473 INFO [stderr]    |
Nov 29 05:02:08.473 INFO [stderr] 88 |         self.write();
Nov 29 05:02:08.473 INFO [stderr]    |         ^^^^^^^^^^^^^
Nov 29 05:02:08.473 INFO [stderr]    |
Nov 29 05:02:08.473 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 05:02:08.473 INFO [stderr] 
Nov 29 05:02:09.468 INFO [stderr] warning: variable does not need to be mutable
Nov 29 05:02:09.468 INFO [stderr]   --> test/test.rs:28:17
Nov 29 05:02:09.468 INFO [stderr]    |
Nov 29 05:02:09.468 INFO [stderr] 28 |             let mut current = a.entry(key).or_insert(0);
Nov 29 05:02:09.468 INFO [stderr]    |                 ----^^^^^^^
Nov 29 05:02:09.468 INFO [stderr]    |                 |
Nov 29 05:02:09.468 INFO [stderr]    |                 help: remove this `mut`
Nov 29 05:02:09.468 INFO [stderr]    |
Nov 29 05:02:09.468 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 05:02:09.468 INFO [stderr] 
Nov 29 05:02:09.521 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
Nov 29 05:02:09.527 INFO [stderr] su: No module specific data is present
Nov 29 05:02:10.202 INFO running `"docker" "inspect" "0eae774fcf0340cdee9fce5438e8b068094281bc43a144f302adee66588e55ac"`
Nov 29 05:02:10.414 INFO running `"docker" "rm" "-f" "0eae774fcf0340cdee9fce5438e8b068094281bc43a144f302adee66588e55ac"`
Nov 29 05:02:10.808 INFO [stdout] 0eae774fcf0340cdee9fce5438e8b068094281bc43a144f302adee66588e55ac