Dec 19 10:55:03.813 INFO checking pipct/bananagrams-host against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 10:55:03.813 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/pipct/bananagrams-host:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 10:55:04.018 INFO [stdout] f3284ac473bd203854df7cf3bc7837bb067f2f6b11dbb87e4c0968a3d14902ea
Dec 19 10:55:04.020 INFO running `"docker" "start" "-a" "f3284ac473bd203854df7cf3bc7837bb067f2f6b11dbb87e4c0968a3d14902ea"`
Dec 19 10:55:04.544 INFO [stderr]     Checking bananagrams-host v0.1.0 (/opt/crater/workdir)
Dec 19 10:55:04.697 INFO [stderr] warning: unused import: `std::io::BufReader`
Dec 19 10:55:04.697 INFO [stderr]  --> src/main.rs:6:5
Dec 19 10:55:04.697 INFO [stderr]   |
Dec 19 10:55:04.697 INFO [stderr] 6 | use std::io::BufReader;
Dec 19 10:55:04.697 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 10:55:04.697 INFO [stderr]   |
Dec 19 10:55:04.697 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 10:55:04.697 INFO [stderr] 
Dec 19 10:55:04.700 INFO [stderr] warning: unused import: `std::io::BufReader`
Dec 19 10:55:04.700 INFO [stderr]  --> src/main.rs:6:5
Dec 19 10:55:04.700 INFO [stderr]   |
Dec 19 10:55:04.700 INFO [stderr] 6 | use std::io::BufReader;
Dec 19 10:55:04.700 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 19 10:55:04.700 INFO [stderr]   |
Dec 19 10:55:04.700 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 10:55:04.700 INFO [stderr] 
Dec 19 10:55:04.836 INFO [stderr] warning: unused variable: `GameState`
Dec 19 10:55:04.836 INFO [stderr]    --> src/main.rs:122:13
Dec 19 10:55:04.836 INFO [stderr]     |
Dec 19 10:55:04.837 INFO [stderr] 122 |     let mut GameState = GameState::Waiting(vec![false; 5]);
Dec 19 10:55:04.837 INFO [stderr]     |             ^^^^^^^^^ help: consider using `_GameState` instead
Dec 19 10:55:04.837 INFO [stderr]     |
Dec 19 10:55:04.837 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 10:55:04.837 INFO [stderr] 
Dec 19 10:55:04.852 INFO [stderr] warning: unused variable: `GameState`
Dec 19 10:55:04.852 INFO [stderr]    --> src/main.rs:122:13
Dec 19 10:55:04.852 INFO [stderr]     |
Dec 19 10:55:04.852 INFO [stderr] 122 |     let mut GameState = GameState::Waiting(vec![false; 5]);
Dec 19 10:55:04.852 INFO [stderr]     |             ^^^^^^^^^ help: consider using `_GameState` instead
Dec 19 10:55:04.852 INFO [stderr]     |
Dec 19 10:55:04.852 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 10:55:04.852 INFO [stderr] 
Dec 19 10:55:04.867 INFO [stderr] warning: variable does not need to be mutable
Dec 19 10:55:04.867 INFO [stderr]    --> src/main.rs:122:9
Dec 19 10:55:04.867 INFO [stderr]     |
Dec 19 10:55:04.867 INFO [stderr] 122 |     let mut GameState = GameState::Waiting(vec![false; 5]);
Dec 19 10:55:04.867 INFO [stderr]     |         ----^^^^^^^^^
Dec 19 10:55:04.867 INFO [stderr]     |         |
Dec 19 10:55:04.867 INFO [stderr]     |         help: remove this `mut`
Dec 19 10:55:04.867 INFO [stderr]     |
Dec 19 10:55:04.867 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 10:55:04.867 INFO [stderr] 
Dec 19 10:55:04.867 INFO [stderr] warning: variant is never constructed: `ProtocolError`
Dec 19 10:55:04.867 INFO [stderr]   --> src/main.rs:42:5
Dec 19 10:55:04.867 INFO [stderr]    |
Dec 19 10:55:04.867 INFO [stderr] 42 |     ProtocolError,
Dec 19 10:55:04.867 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 10:55:04.867 INFO [stderr]    |
Dec 19 10:55:04.867 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:55:04.867 INFO [stderr] 
Dec 19 10:55:04.867 INFO [stderr] warning: variant is never constructed: `UnexpectedEOF`
Dec 19 10:55:04.867 INFO [stderr]   --> src/main.rs:43:5
Dec 19 10:55:04.867 INFO [stderr]    |
Dec 19 10:55:04.867 INFO [stderr] 43 |     UnexpectedEOF,
Dec 19 10:55:04.867 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 10:55:04.867 INFO [stderr] 
Dec 19 10:55:04.867 INFO [stderr] warning: variant is never constructed: `LetterError`
Dec 19 10:55:04.867 INFO [stderr]   --> src/main.rs:44:5
Dec 19 10:55:04.867 INFO [stderr]    |
Dec 19 10:55:04.867 INFO [stderr] 44 |     LetterError
Dec 19 10:55:04.867 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 10:55:04.867 INFO [stderr] 
Dec 19 10:55:04.867 INFO [stderr] warning: function `readDigit` should have a snake case name such as `read_digit`
Dec 19 10:55:04.867 INFO [stderr]   --> src/main.rs:49:1
Dec 19 10:55:04.867 INFO [stderr]    |
Dec 19 10:55:04.867 INFO [stderr] 49 | / fn readDigit(chr: u8) -> u8 {
Dec 19 10:55:04.867 INFO [stderr] 50 | |     if chr < 0x30 || 0x39 < chr {
Dec 19 10:55:04.867 INFO [stderr] 51 | |         panic!("not a digit: {}", chr);
Dec 19 10:55:04.867 INFO [stderr] 52 | |     }
Dec 19 10:55:04.868 INFO [stderr] 53 | |
Dec 19 10:55:04.868 INFO [stderr] 54 | |     chr - 0x30
Dec 19 10:55:04.868 INFO [stderr] 55 | | }
Dec 19 10:55:04.868 INFO [stderr]    | |_^
Dec 19 10:55:04.868 INFO [stderr]    |
Dec 19 10:55:04.868 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 10:55:04.868 INFO [stderr] 
Dec 19 10:55:04.868 INFO [stderr] warning: function `readInt` should have a snake case name such as `read_int`
Dec 19 10:55:04.868 INFO [stderr]   --> src/main.rs:57:1
Dec 19 10:55:04.868 INFO [stderr]    |
Dec 19 10:55:04.868 INFO [stderr] 57 | / fn readInt<T>(seq: T) -> u64 where T: IntoIterator<Item=u8> {
Dec 19 10:55:04.868 INFO [stderr] 58 | |     seq.into_iter().fold(0, |acc, x| (acc*10) + readDigit(x) as u64)
Dec 19 10:55:04.868 INFO [stderr] 59 | | }
Dec 19 10:55:04.868 INFO [stderr]    | |_^
Dec 19 10:55:04.868 INFO [stderr] 
Dec 19 10:55:04.868 INFO [stderr] warning: variable `GameState` should have a snake case name such as `game_state`
Dec 19 10:55:04.868 INFO [stderr]    --> src/main.rs:122:9
Dec 19 10:55:04.868 INFO [stderr]     |
Dec 19 10:55:04.868 INFO [stderr] 122 |     let mut GameState = GameState::Waiting(vec![false; 5]);
Dec 19 10:55:04.868 INFO [stderr]     |         ^^^^^^^^^^^^^
Dec 19 10:55:04.868 INFO [stderr] 
Dec 19 10:55:04.880 INFO [stderr] warning: variable does not need to be mutable
Dec 19 10:55:04.880 INFO [stderr]    --> src/main.rs:122:9
Dec 19 10:55:04.880 INFO [stderr]     |
Dec 19 10:55:04.880 INFO [stderr] 122 |     let mut GameState = GameState::Waiting(vec![false; 5]);
Dec 19 10:55:04.880 INFO [stderr]     |         ----^^^^^^^^^
Dec 19 10:55:04.880 INFO [stderr]     |         |
Dec 19 10:55:04.880 INFO [stderr]     |         help: remove this `mut`
Dec 19 10:55:04.880 INFO [stderr]     |
Dec 19 10:55:04.880 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 10:55:04.880 INFO [stderr] 
Dec 19 10:55:04.880 INFO [stderr] warning: variant is never constructed: `ProtocolError`
Dec 19 10:55:04.880 INFO [stderr]   --> src/main.rs:42:5
Dec 19 10:55:04.880 INFO [stderr]    |
Dec 19 10:55:04.880 INFO [stderr] 42 |     ProtocolError,
Dec 19 10:55:04.880 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 10:55:04.880 INFO [stderr]    |
Dec 19 10:55:04.880 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 10:55:04.880 INFO [stderr] 
Dec 19 10:55:04.880 INFO [stderr] warning: variant is never constructed: `UnexpectedEOF`
Dec 19 10:55:04.881 INFO [stderr]   --> src/main.rs:43:5
Dec 19 10:55:04.881 INFO [stderr]    |
Dec 19 10:55:04.881 INFO [stderr] 43 |     UnexpectedEOF,
Dec 19 10:55:04.881 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 10:55:04.881 INFO [stderr] 
Dec 19 10:55:04.881 INFO [stderr] warning: variant is never constructed: `LetterError`
Dec 19 10:55:04.881 INFO [stderr]   --> src/main.rs:44:5
Dec 19 10:55:04.881 INFO [stderr]    |
Dec 19 10:55:04.881 INFO [stderr] 44 |     LetterError
Dec 19 10:55:04.881 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 10:55:04.881 INFO [stderr] 
Dec 19 10:55:04.881 INFO [stderr] warning: function `readDigit` should have a snake case name such as `read_digit`
Dec 19 10:55:04.881 INFO [stderr]   --> src/main.rs:49:1
Dec 19 10:55:04.881 INFO [stderr]    |
Dec 19 10:55:04.881 INFO [stderr] 49 | / fn readDigit(chr: u8) -> u8 {
Dec 19 10:55:04.881 INFO [stderr] 50 | |     if chr < 0x30 || 0x39 < chr {
Dec 19 10:55:04.881 INFO [stderr] 51 | |         panic!("not a digit: {}", chr);
Dec 19 10:55:04.881 INFO [stderr] 52 | |     }
Dec 19 10:55:04.881 INFO [stderr] 53 | |
Dec 19 10:55:04.881 INFO [stderr] 54 | |     chr - 0x30
Dec 19 10:55:04.881 INFO [stderr] 55 | | }
Dec 19 10:55:04.881 INFO [stderr]    | |_^
Dec 19 10:55:04.881 INFO [stderr]    |
Dec 19 10:55:04.881 INFO [stderr]    = note: #[warn(non_snake_case)] on by default
Dec 19 10:55:04.881 INFO [stderr] 
Dec 19 10:55:04.881 INFO [stderr] warning: function `readInt` should have a snake case name such as `read_int`
Dec 19 10:55:04.881 INFO [stderr]   --> src/main.rs:57:1
Dec 19 10:55:04.881 INFO [stderr]    |
Dec 19 10:55:04.881 INFO [stderr] 57 | / fn readInt<T>(seq: T) -> u64 where T: IntoIterator<Item=u8> {
Dec 19 10:55:04.881 INFO [stderr] 58 | |     seq.into_iter().fold(0, |acc, x| (acc*10) + readDigit(x) as u64)
Dec 19 10:55:04.881 INFO [stderr] 59 | | }
Dec 19 10:55:04.881 INFO [stderr]    | |_^
Dec 19 10:55:04.881 INFO [stderr] 
Dec 19 10:55:04.881 INFO [stderr] warning: variable `GameState` should have a snake case name such as `game_state`
Dec 19 10:55:04.881 INFO [stderr]    --> src/main.rs:122:9
Dec 19 10:55:04.881 INFO [stderr]     |
Dec 19 10:55:04.881 INFO [stderr] 122 |     let mut GameState = GameState::Waiting(vec![false; 5]);
Dec 19 10:55:04.881 INFO [stderr]     |         ^^^^^^^^^^^^^
Dec 19 10:55:04.881 INFO [stderr] 
Dec 19 10:55:04.914 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
Dec 19 10:55:05.432 INFO running `"docker" "inspect" "f3284ac473bd203854df7cf3bc7837bb067f2f6b11dbb87e4c0968a3d14902ea"`
Dec 19 10:55:05.698 INFO running `"docker" "rm" "-f" "f3284ac473bd203854df7cf3bc7837bb067f2f6b11dbb87e4c0968a3d14902ea"`
Dec 19 10:55:06.017 INFO [stdout] f3284ac473bd203854df7cf3bc7837bb067f2f6b11dbb87e4c0968a3d14902ea