Nov 27 17:03:06.489 INFO checking withoutboats/guessing_game against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 17:03:06.491 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 27 17:03:06.865 INFO [stdout] 769fde6773eed3cedd1404db6b4d3ce246761ba533f462cfb1c2d2e430ca6036
Nov 27 17:03:06.867 INFO running `"docker" "start" "-a" "769fde6773eed3cedd1404db6b4d3ce246761ba533f462cfb1c2d2e430ca6036"`
Nov 27 17:03:08.213 INFO [stderr] usermod: no changes
Nov 27 17:03:08.263 INFO [stderr]     Checking guessing_game v0.1.0 (/source)
Nov 27 17:03:08.584 INFO [stderr] warning: unused variable: `secret`
Nov 27 17:03:08.584 INFO [stderr]   --> src/secret_number/mod.rs:15:12
Nov 27 17:03:08.584 INFO [stderr]    |
Nov 27 17:03:08.584 INFO [stderr] 15 |     fn new(secret: u16) -> Secret {
Nov 27 17:03:08.584 INFO [stderr]    |            ^^^^^^ help: consider using `_secret` instead
Nov 27 17:03:08.584 INFO [stderr]    |
Nov 27 17:03:08.584 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 17:03:08.584 INFO [stderr] 
Nov 27 17:03:08.584 INFO [stderr] warning: unused variable: `guess`
Nov 27 17:03:08.584 INFO [stderr]   --> src/secret_number/mod.rs:19:25
Nov 27 17:03:08.584 INFO [stderr]    |
Nov 27 17:03:08.584 INFO [stderr] 19 |     pub fn guess(&self, guess: &str) -> Result<u32, GuessError> {
Nov 27 17:03:08.584 INFO [stderr]    |                         ^^^^^ help: consider using `_guess` instead
Nov 27 17:03:08.584 INFO [stderr] 
Nov 27 17:03:08.584 INFO [stderr] warning: unused variable: `f`
Nov 27 17:03:08.584 INFO [stderr]   --> src/secret_number/mod.rs:36:19
Nov 27 17:03:08.585 INFO [stderr]    |
Nov 27 17:03:08.585 INFO [stderr] 36 |     fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
Nov 27 17:03:08.585 INFO [stderr]    |                   ^ help: consider using `_f` instead
Nov 27 17:03:08.585 INFO [stderr] 
Nov 27 17:03:08.592 INFO [stderr] warning: struct is never constructed: `Secret`
Nov 27 17:03:08.592 INFO [stderr]  --> src/secret_number/mod.rs:7:1
Nov 27 17:03:08.592 INFO [stderr]   |
Nov 27 17:03:08.592 INFO [stderr] 7 | pub struct Secret {
Nov 27 17:03:08.592 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Nov 27 17:03:08.608 INFO [stderr]   |
Nov 27 17:03:08.608 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 27 17:03:08.608 INFO [stderr] 
Nov 27 17:03:08.608 INFO [stderr] warning: method is never used: `random`
Nov 27 17:03:08.608 INFO [stderr]   --> src/secret_number/mod.rs:11:5
Nov 27 17:03:08.608 INFO [stderr]    |
Nov 27 17:03:08.608 INFO [stderr] 11 |     pub fn random() -> Secret {
Nov 27 17:03:08.608 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:03:08.608 INFO [stderr] 
Nov 27 17:03:08.608 INFO [stderr] warning: method is never used: `new`
Nov 27 17:03:08.608 INFO [stderr]   --> src/secret_number/mod.rs:15:5
Nov 27 17:03:08.608 INFO [stderr]    |
Nov 27 17:03:08.608 INFO [stderr] 15 |     fn new(secret: u16) -> Secret {
Nov 27 17:03:08.609 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:03:08.609 INFO [stderr] 
Nov 27 17:03:08.609 INFO [stderr] warning: method is never used: `guess`
Nov 27 17:03:08.609 INFO [stderr]   --> src/secret_number/mod.rs:19:5
Nov 27 17:03:08.609 INFO [stderr]    |
Nov 27 17:03:08.609 INFO [stderr] 19 |     pub fn guess(&self, guess: &str) -> Result<u32, GuessError> {
Nov 27 17:03:08.609 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:03:08.609 INFO [stderr] 
Nov 27 17:03:08.609 INFO [stderr] warning: method is never used: `secret`
Nov 27 17:03:08.609 INFO [stderr]   --> src/secret_number/mod.rs:23:5
Nov 27 17:03:08.609 INFO [stderr]    |
Nov 27 17:03:08.609 INFO [stderr] 23 |     fn secret(&self) -> u16 {
Nov 27 17:03:08.609 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 17:03:08.609 INFO [stderr] 
Nov 27 17:03:08.609 INFO [stderr] warning: variant is never constructed: `TooHigh`
Nov 27 17:03:08.609 INFO [stderr]   --> src/secret_number/mod.rs:30:5
Nov 27 17:03:08.609 INFO [stderr]    |
Nov 27 17:03:08.609 INFO [stderr] 30 |     TooHigh(u16),
Nov 27 17:03:08.609 INFO [stderr]    |     ^^^^^^^^^^^^
Nov 27 17:03:08.609 INFO [stderr] 
Nov 27 17:03:08.609 INFO [stderr] warning: variant is never constructed: `TooLow`
Nov 27 17:03:08.609 INFO [stderr]   --> src/secret_number/mod.rs:31:5
Nov 27 17:03:08.609 INFO [stderr]    |
Nov 27 17:03:08.609 INFO [stderr] 31 |     TooLow(u16),
Nov 27 17:03:08.609 INFO [stderr]    |     ^^^^^^^^^^^
Nov 27 17:03:08.609 INFO [stderr] 
Nov 27 17:03:08.609 INFO [stderr] warning: variant is never constructed: `NotANumber`
Nov 27 17:03:08.609 INFO [stderr]   --> src/secret_number/mod.rs:32:5
Nov 27 17:03:08.609 INFO [stderr]    |
Nov 27 17:03:08.609 INFO [stderr] 32 |     NotANumber,
Nov 27 17:03:08.609 INFO [stderr]    |     ^^^^^^^^^^
Nov 27 17:03:08.609 INFO [stderr] 
Nov 27 17:03:08.680 INFO [stderr] warning: unused variable: `secret`
Nov 27 17:03:08.680 INFO [stderr]   --> src/secret_number/mod.rs:15:12
Nov 27 17:03:08.680 INFO [stderr]    |
Nov 27 17:03:08.680 INFO [stderr] 15 |     fn new(secret: u16) -> Secret {
Nov 27 17:03:08.680 INFO [stderr]    |            ^^^^^^ help: consider using `_secret` instead
Nov 27 17:03:08.680 INFO [stderr]    |
Nov 27 17:03:08.680 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 17:03:08.680 INFO [stderr] 
Nov 27 17:03:08.680 INFO [stderr] warning: unused variable: `guess`
Nov 27 17:03:08.680 INFO [stderr]   --> src/secret_number/mod.rs:19:25
Nov 27 17:03:08.680 INFO [stderr]    |
Nov 27 17:03:08.680 INFO [stderr] 19 |     pub fn guess(&self, guess: &str) -> Result<u32, GuessError> {
Nov 27 17:03:08.680 INFO [stderr]    |                         ^^^^^ help: consider using `_guess` instead
Nov 27 17:03:08.680 INFO [stderr] 
Nov 27 17:03:08.680 INFO [stderr] warning: unused variable: `f`
Nov 27 17:03:08.680 INFO [stderr]   --> src/secret_number/mod.rs:36:19
Nov 27 17:03:08.680 INFO [stderr]    |
Nov 27 17:03:08.680 INFO [stderr] 36 |     fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
Nov 27 17:03:08.680 INFO [stderr]    |                   ^ help: consider using `_f` instead
Nov 27 17:03:08.680 INFO [stderr] 
Nov 27 17:03:08.701 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.701 INFO [stderr]   --> src/secret_number/tests.rs:18:9
Nov 27 17:03:08.701 INFO [stderr]    |
Nov 27 17:03:08.701 INFO [stderr] 18 |     let mut secret = Secret::new(0);
Nov 27 17:03:08.701 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.701 INFO [stderr]    |         |
Nov 27 17:03:08.701 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.701 INFO [stderr]    |
Nov 27 17:03:08.701 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 17:03:08.701 INFO [stderr] 
Nov 27 17:03:08.704 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.704 INFO [stderr]   --> src/secret_number/tests.rs:24:9
Nov 27 17:03:08.704 INFO [stderr]    |
Nov 27 17:03:08.704 INFO [stderr] 24 |     let mut secret = Secret::new(0);
Nov 27 17:03:08.704 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.704 INFO [stderr]    |         |
Nov 27 17:03:08.704 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.704 INFO [stderr] 
Nov 27 17:03:08.704 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.704 INFO [stderr]   --> src/secret_number/tests.rs:30:9
Nov 27 17:03:08.704 INFO [stderr]    |
Nov 27 17:03:08.704 INFO [stderr] 30 |     let mut secret = Secret::new(1);
Nov 27 17:03:08.704 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.704 INFO [stderr]    |         |
Nov 27 17:03:08.704 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.704 INFO [stderr] 
Nov 27 17:03:08.708 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.708 INFO [stderr]   --> src/secret_number/tests.rs:36:9
Nov 27 17:03:08.708 INFO [stderr]    |
Nov 27 17:03:08.708 INFO [stderr] 36 |     let mut secret = Secret::new(0);
Nov 27 17:03:08.708 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.708 INFO [stderr]    |         |
Nov 27 17:03:08.708 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.708 INFO [stderr] 
Nov 27 17:03:08.708 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.708 INFO [stderr]   --> src/secret_number/tests.rs:42:9
Nov 27 17:03:08.708 INFO [stderr]    |
Nov 27 17:03:08.708 INFO [stderr] 42 |     let mut secret = Secret::new(1);
Nov 27 17:03:08.708 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.708 INFO [stderr]    |         |
Nov 27 17:03:08.708 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.708 INFO [stderr] 
Nov 27 17:03:08.708 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.708 INFO [stderr]   --> src/secret_number/tests.rs:49:9
Nov 27 17:03:08.708 INFO [stderr]    |
Nov 27 17:03:08.709 INFO [stderr] 49 |     let mut secret = Secret::new(0);
Nov 27 17:03:08.709 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.709 INFO [stderr]    |         |
Nov 27 17:03:08.709 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.709 INFO [stderr] 
Nov 27 17:03:08.709 INFO [stderr] warning: variable does not need to be mutable
Nov 27 17:03:08.709 INFO [stderr]   --> src/secret_number/tests.rs:57:9
Nov 27 17:03:08.709 INFO [stderr]    |
Nov 27 17:03:08.709 INFO [stderr] 57 |     let mut secret = Secret::new(0);
Nov 27 17:03:08.709 INFO [stderr]    |         ----^^^^^^
Nov 27 17:03:08.709 INFO [stderr]    |         |
Nov 27 17:03:08.709 INFO [stderr]    |         help: remove this `mut`
Nov 27 17:03:08.709 INFO [stderr] 
Nov 27 17:03:08.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Nov 27 17:03:08.807 INFO [stderr] su: No module specific data is present
Nov 27 17:03:09.281 INFO running `"docker" "inspect" "769fde6773eed3cedd1404db6b4d3ce246761ba533f462cfb1c2d2e430ca6036"`
Nov 27 17:03:09.608 INFO running `"docker" "rm" "-f" "769fde6773eed3cedd1404db6b4d3ce246761ba533f462cfb1c2d2e430ca6036"`
Nov 27 17:03:09.981 INFO [stdout] 769fde6773eed3cedd1404db6b4d3ce246761ba533f462cfb1c2d2e430ca6036