Oct 13 18:28:01.685 INFO checking acid-state-0.2.3 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 18:28:01.685 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 18:28:02.120 INFO blam! 664ce00facf7f369c79ac3b6f127af2bdda6e4974669c64fdd5518952d504b65
Oct 13 18:28:02.133 INFO running `"docker" "start" "-a" "664ce00facf7f369c79ac3b6f127af2bdda6e4974669c64fdd5518952d504b65"`
Oct 13 18:28:03.012 INFO kablam! usermod: no changes
Oct 13 18:28:03.080 INFO kablam!     Checking acid-state v0.2.3 (/source)
Oct 13 18:28:04.096 INFO kablam! warning: unused `#[macro_use]` import
Oct 13 18:28:04.096 INFO kablam!   --> src/lib.rs:49:1
Oct 13 18:28:04.096 INFO kablam!    |
Oct 13 18:28:04.096 INFO kablam! 49 | #[macro_use]
Oct 13 18:28:04.096 INFO kablam!    | ^^^^^^^^^^^^
Oct 13 18:28:04.096 INFO kablam!    |
Oct 13 18:28:04.096 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 18:28:04.096 INFO kablam! 
Oct 13 18:28:04.160 INFO kablam! warning: method is never used: `clear`
Oct 13 18:28:04.160 INFO kablam!   --> src/wrapper_structs.rs:54:5
Oct 13 18:28:04.160 INFO kablam!    |
Oct 13 18:28:04.160 INFO kablam! 54 |     fn clear(&self) -> io::Result<()> {
Oct 13 18:28:04.160 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 18:28:04.160 INFO kablam!    |
Oct 13 18:28:04.160 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 18:28:04.160 INFO kablam! 
Oct 13 18:28:04.176 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 18:28:04.176 INFO kablam!   --> src/wrapper_structs.rs:70:9
Oct 13 18:28:04.176 INFO kablam!    |
Oct 13 18:28:04.176 INFO kablam! 70 |         f.sync_all();
Oct 13 18:28:04.176 INFO kablam!    |         ^^^^^^^^^^^^^
Oct 13 18:28:04.176 INFO kablam!    |
Oct 13 18:28:04.176 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 18:28:04.176 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 18:28:04.176 INFO kablam! 
Oct 13 18:28:04.176 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 18:28:04.176 INFO kablam!   --> src/wrapper_structs.rs:88:9
Oct 13 18:28:04.176 INFO kablam!    |
Oct 13 18:28:04.176 INFO kablam! 88 |         self.write();
Oct 13 18:28:04.176 INFO kablam!    |         ^^^^^^^^^^^^^
Oct 13 18:28:04.176 INFO kablam!    |
Oct 13 18:28:04.176 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 18:28:04.176 INFO kablam! 
Oct 13 18:28:04.234 INFO kablam! warning: unused `#[macro_use]` import
Oct 13 18:28:04.235 INFO kablam!   --> src/lib.rs:49:1
Oct 13 18:28:04.235 INFO kablam!    |
Oct 13 18:28:04.235 INFO kablam! 49 | #[macro_use]
Oct 13 18:28:04.235 INFO kablam!    | ^^^^^^^^^^^^
Oct 13 18:28:04.236 INFO kablam!    |
Oct 13 18:28:04.236 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 18:28:04.236 INFO kablam! 
Oct 13 18:28:04.305 INFO kablam! warning: method is never used: `clear`
Oct 13 18:28:04.305 INFO kablam!   --> src/wrapper_structs.rs:54:5
Oct 13 18:28:04.305 INFO kablam!    |
Oct 13 18:28:04.306 INFO kablam! 54 |     fn clear(&self) -> io::Result<()> {
Oct 13 18:28:04.306 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 18:28:04.306 INFO kablam!    |
Oct 13 18:28:04.306 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 18:28:04.306 INFO kablam! 
Oct 13 18:28:04.316 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 18:28:04.316 INFO kablam!   --> src/wrapper_structs.rs:70:9
Oct 13 18:28:04.316 INFO kablam!    |
Oct 13 18:28:04.317 INFO kablam! 70 |         f.sync_all();
Oct 13 18:28:04.317 INFO kablam!    |         ^^^^^^^^^^^^^
Oct 13 18:28:04.317 INFO kablam!    |
Oct 13 18:28:04.317 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 18:28:04.318 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 18:28:04.318 INFO kablam! 
Oct 13 18:28:04.318 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 18:28:04.318 INFO kablam!   --> src/wrapper_structs.rs:88:9
Oct 13 18:28:04.319 INFO kablam!    |
Oct 13 18:28:04.319 INFO kablam! 88 |         self.write();
Oct 13 18:28:04.319 INFO kablam!    |         ^^^^^^^^^^^^^
Oct 13 18:28:04.319 INFO kablam!    |
Oct 13 18:28:04.320 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 18:28:04.320 INFO kablam! 
Oct 13 18:28:05.568 INFO kablam! warning: variable does not need to be mutable
Oct 13 18:28:05.568 INFO kablam!   --> test/test.rs:28:17
Oct 13 18:28:05.568 INFO kablam!    |
Oct 13 18:28:05.568 INFO kablam! 28 |             let mut current = a.entry(key).or_insert(0);
Oct 13 18:28:05.568 INFO kablam!    |                 ----^^^^^^^
Oct 13 18:28:05.568 INFO kablam!    |                 |
Oct 13 18:28:05.568 INFO kablam!    |                 help: remove this `mut`
Oct 13 18:28:05.568 INFO kablam!    |
Oct 13 18:28:05.568 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 18:28:05.568 INFO kablam! 
Oct 13 18:28:05.597 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
Oct 13 18:28:05.602 INFO kablam! su: No module specific data is present
Oct 13 18:28:06.313 INFO running `"docker" "rm" "-f" "664ce00facf7f369c79ac3b6f127af2bdda6e4974669c64fdd5518952d504b65"`
Oct 13 18:28:06.632 INFO blam! 664ce00facf7f369c79ac3b6f127af2bdda6e4974669c64fdd5518952d504b65