Dec 05 17:04:31.878 INFO checking acid-state-0.2.3 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 17:04:31.878 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 17:04:32.136 INFO [stdout] edf651c5f9ffe19781540293602f14430b43f4fcae7c8686d7eaf7f9cbef05a5
Dec 05 17:04:32.140 INFO running `"docker" "start" "-a" "edf651c5f9ffe19781540293602f14430b43f4fcae7c8686d7eaf7f9cbef05a5"`
Dec 05 17:04:32.760 INFO [stderr] usermod: no changes
Dec 05 17:04:32.831 INFO [stderr]     Checking acid-state v0.2.3 (/source)
Dec 05 17:04:33.715 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 17:04:33.715 INFO [stderr]   --> src/lib.rs:49:1
Dec 05 17:04:33.715 INFO [stderr]    |
Dec 05 17:04:33.715 INFO [stderr] 49 | #[macro_use]
Dec 05 17:04:33.715 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 17:04:33.715 INFO [stderr]    |
Dec 05 17:04:33.715 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 17:04:33.715 INFO [stderr] 
Dec 05 17:04:33.775 INFO [stderr] warning: method is never used: `clear`
Dec 05 17:04:33.775 INFO [stderr]   --> src/wrapper_structs.rs:54:5
Dec 05 17:04:33.775 INFO [stderr]    |
Dec 05 17:04:33.775 INFO [stderr] 54 |     fn clear(&self) -> io::Result<()> {
Dec 05 17:04:33.775 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:04:33.775 INFO [stderr]    |
Dec 05 17:04:33.775 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 17:04:33.775 INFO [stderr] 
Dec 05 17:04:33.781 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:04:33.781 INFO [stderr]   --> src/wrapper_structs.rs:70:9
Dec 05 17:04:33.781 INFO [stderr]    |
Dec 05 17:04:33.781 INFO [stderr] 70 |         f.sync_all();
Dec 05 17:04:33.781 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 05 17:04:33.781 INFO [stderr]    |
Dec 05 17:04:33.781 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 17:04:33.781 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:04:33.781 INFO [stderr] 
Dec 05 17:04:33.781 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:04:33.781 INFO [stderr]   --> src/wrapper_structs.rs:88:9
Dec 05 17:04:33.781 INFO [stderr]    |
Dec 05 17:04:33.781 INFO [stderr] 88 |         self.write();
Dec 05 17:04:33.781 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 05 17:04:33.781 INFO [stderr]    |
Dec 05 17:04:33.781 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:04:33.781 INFO [stderr] 
Dec 05 17:04:33.915 INFO [stderr] warning: unused `#[macro_use]` import
Dec 05 17:04:33.915 INFO [stderr]   --> src/lib.rs:49:1
Dec 05 17:04:33.915 INFO [stderr]    |
Dec 05 17:04:33.915 INFO [stderr] 49 | #[macro_use]
Dec 05 17:04:33.915 INFO [stderr]    | ^^^^^^^^^^^^
Dec 05 17:04:33.915 INFO [stderr]    |
Dec 05 17:04:33.915 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 17:04:33.915 INFO [stderr] 
Dec 05 17:04:34.007 INFO [stderr] warning: method is never used: `clear`
Dec 05 17:04:34.007 INFO [stderr]   --> src/wrapper_structs.rs:54:5
Dec 05 17:04:34.007 INFO [stderr]    |
Dec 05 17:04:34.007 INFO [stderr] 54 |     fn clear(&self) -> io::Result<()> {
Dec 05 17:04:34.007 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 17:04:34.007 INFO [stderr]    |
Dec 05 17:04:34.007 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 17:04:34.008 INFO [stderr] 
Dec 05 17:04:34.016 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:04:34.016 INFO [stderr]   --> src/wrapper_structs.rs:70:9
Dec 05 17:04:34.016 INFO [stderr]    |
Dec 05 17:04:34.016 INFO [stderr] 70 |         f.sync_all();
Dec 05 17:04:34.016 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 05 17:04:34.016 INFO [stderr]    |
Dec 05 17:04:34.016 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 17:04:34.016 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:04:34.016 INFO [stderr] 
Dec 05 17:04:34.016 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 17:04:34.016 INFO [stderr]   --> src/wrapper_structs.rs:88:9
Dec 05 17:04:34.016 INFO [stderr]    |
Dec 05 17:04:34.016 INFO [stderr] 88 |         self.write();
Dec 05 17:04:34.016 INFO [stderr]    |         ^^^^^^^^^^^^^
Dec 05 17:04:34.016 INFO [stderr]    |
Dec 05 17:04:34.016 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 17:04:34.016 INFO [stderr] 
Dec 05 17:04:35.207 INFO [stderr] warning: variable does not need to be mutable
Dec 05 17:04:35.207 INFO [stderr]   --> test/test.rs:28:17
Dec 05 17:04:35.207 INFO [stderr]    |
Dec 05 17:04:35.207 INFO [stderr] 28 |             let mut current = a.entry(key).or_insert(0);
Dec 05 17:04:35.207 INFO [stderr]    |                 ----^^^^^^^
Dec 05 17:04:35.207 INFO [stderr]    |                 |
Dec 05 17:04:35.207 INFO [stderr]    |                 help: remove this `mut`
Dec 05 17:04:35.207 INFO [stderr]    |
Dec 05 17:04:35.207 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 17:04:35.207 INFO [stderr] 
Dec 05 17:04:35.251 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.45s
Dec 05 17:04:35.255 INFO [stderr] su: No module specific data is present
Dec 05 17:04:35.838 INFO running `"docker" "inspect" "edf651c5f9ffe19781540293602f14430b43f4fcae7c8686d7eaf7f9cbef05a5"`
Dec 05 17:04:35.997 INFO running `"docker" "rm" "-f" "edf651c5f9ffe19781540293602f14430b43f4fcae7c8686d7eaf7f9cbef05a5"`
Dec 05 17:04:36.191 INFO [stdout] edf651c5f9ffe19781540293602f14430b43f4fcae7c8686d7eaf7f9cbef05a5