Dec 18 04:24:55.079 INFO checking ajmwagar/calc against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 04:24:55.079 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/ajmwagar/calc:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:24:55.470 INFO [stdout] fdc575ef10e02b4cbba35fd9fefc95a1edab1d6d4cbb713f5d24bb6ce45e1f7f
Dec 18 04:24:55.471 INFO running `"docker" "start" "-a" "fdc575ef10e02b4cbba35fd9fefc95a1edab1d6d4cbb713f5d24bb6ce45e1f7f"`
Dec 18 04:24:57.052 INFO [stderr]     Checking rand v0.5.0
Dec 18 04:24:59.279 INFO [stderr]     Checking calc v0.1.0 (/opt/crater/workdir)
Dec 18 04:24:59.555 INFO [stderr] warning: unused import: `rand::prelude::*`
Dec 18 04:24:59.555 INFO [stderr]  --> src/main.rs:4:5
Dec 18 04:24:59.555 INFO [stderr]   |
Dec 18 04:24:59.555 INFO [stderr] 4 | use rand::prelude::*;
Dec 18 04:24:59.555 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 18 04:24:59.555 INFO [stderr]   |
Dec 18 04:24:59.555 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:24:59.555 INFO [stderr] 
Dec 18 04:24:59.612 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.614 INFO [stderr]    --> src/main.rs:11:29
Dec 18 04:24:59.614 INFO [stderr]     |
Dec 18 04:24:59.614 INFO [stderr] 11  |         loop { let _ = $xs; break; }
Dec 18 04:24:59.614 INFO [stderr]     |                             ^^^^^^
Dec 18 04:24:59.614 INFO [stderr] ...
Dec 18 04:24:59.614 INFO [stderr] 138 |         "Cleared!" => block!({ break; }),
Dec 18 04:24:59.614 INFO [stderr]     |                       ------------------ in this macro invocation
Dec 18 04:24:59.614 INFO [stderr]     |
Dec 18 04:24:59.616 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 18 04:24:59.616 INFO [stderr] 
Dec 18 04:24:59.616 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.616 INFO [stderr]    --> src/main.rs:11:29
Dec 18 04:24:59.616 INFO [stderr]     |
Dec 18 04:24:59.616 INFO [stderr] 11  |         loop { let _ = $xs; break; }
Dec 18 04:24:59.616 INFO [stderr]     |                             ^^^^^^
Dec 18 04:24:59.616 INFO [stderr] ...
Dec 18 04:24:59.616 INFO [stderr] 140 |         "Goodbye!" => block!({ break; }),
Dec 18 04:24:59.616 INFO [stderr]     |                       ------------------ in this macro invocation
Dec 18 04:24:59.616 INFO [stderr] 
Dec 18 04:24:59.616 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.616 INFO [stderr]    --> src/main.rs:11:29
Dec 18 04:24:59.616 INFO [stderr]     |
Dec 18 04:24:59.616 INFO [stderr] 11  |         loop { let _ = $xs; break; }
Dec 18 04:24:59.616 INFO [stderr]     |                             ^^^^^^
Dec 18 04:24:59.616 INFO [stderr] ...
Dec 18 04:24:59.616 INFO [stderr] 142 |         "Please enter a valid expression." => block!({ break; }),
Dec 18 04:24:59.616 INFO [stderr]     |                                               ------------------ in this macro invocation
Dec 18 04:24:59.616 INFO [stderr] 
Dec 18 04:24:59.621 INFO [stderr] warning: unused import: `rand::prelude::*`
Dec 18 04:24:59.621 INFO [stderr]  --> src/main.rs:4:5
Dec 18 04:24:59.621 INFO [stderr]   |
Dec 18 04:24:59.621 INFO [stderr] 4 | use rand::prelude::*;
Dec 18 04:24:59.621 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 18 04:24:59.621 INFO [stderr]   |
Dec 18 04:24:59.621 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:24:59.621 INFO [stderr] 
Dec 18 04:24:59.643 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.643 INFO [stderr]    --> src/main.rs:218:5
Dec 18 04:24:59.643 INFO [stderr]     |
Dec 18 04:24:59.643 INFO [stderr] 218 |     return "Goodbye!".to_string();
Dec 18 04:24:59.643 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:24:59.643 INFO [stderr] 
Dec 18 04:24:59.668 INFO [stderr] warning: unused variable: `string_help`
Dec 18 04:24:59.668 INFO [stderr]    --> src/main.rs:132:9
Dec 18 04:24:59.668 INFO [stderr]     |
Dec 18 04:24:59.668 INFO [stderr] 132 |     let string_help = HELP.to_string();
Dec 18 04:24:59.668 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_string_help` instead
Dec 18 04:24:59.668 INFO [stderr]     |
Dec 18 04:24:59.668 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 04:24:59.668 INFO [stderr] 
Dec 18 04:24:59.668 INFO [stderr] warning: unused variable: `print`
Dec 18 04:24:59.668 INFO [stderr]    --> src/main.rs:135:9
Dec 18 04:24:59.668 INFO [stderr]     |
Dec 18 04:24:59.668 INFO [stderr] 135 |     let print: bool;
Dec 18 04:24:59.668 INFO [stderr]     |         ^^^^^ help: consider using `_print` instead
Dec 18 04:24:59.668 INFO [stderr] 
Dec 18 04:24:59.688 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.688 INFO [stderr]    --> src/main.rs:11:29
Dec 18 04:24:59.688 INFO [stderr]     |
Dec 18 04:24:59.688 INFO [stderr] 11  |         loop { let _ = $xs; break; }
Dec 18 04:24:59.688 INFO [stderr]     |                             ^^^^^^
Dec 18 04:24:59.688 INFO [stderr] ...
Dec 18 04:24:59.688 INFO [stderr] 138 |         "Cleared!" => block!({ break; }),
Dec 18 04:24:59.688 INFO [stderr]     |                       ------------------ in this macro invocation
Dec 18 04:24:59.688 INFO [stderr]     |
Dec 18 04:24:59.688 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 18 04:24:59.688 INFO [stderr] 
Dec 18 04:24:59.688 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.688 INFO [stderr]    --> src/main.rs:11:29
Dec 18 04:24:59.688 INFO [stderr]     |
Dec 18 04:24:59.688 INFO [stderr] 11  |         loop { let _ = $xs; break; }
Dec 18 04:24:59.688 INFO [stderr]     |                             ^^^^^^
Dec 18 04:24:59.688 INFO [stderr] ...
Dec 18 04:24:59.688 INFO [stderr] 140 |         "Goodbye!" => block!({ break; }),
Dec 18 04:24:59.688 INFO [stderr]     |                       ------------------ in this macro invocation
Dec 18 04:24:59.688 INFO [stderr] 
Dec 18 04:24:59.688 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.688 INFO [stderr]    --> src/main.rs:11:29
Dec 18 04:24:59.688 INFO [stderr]     |
Dec 18 04:24:59.689 INFO [stderr] 11  |         loop { let _ = $xs; break; }
Dec 18 04:24:59.689 INFO [stderr]     |                             ^^^^^^
Dec 18 04:24:59.689 INFO [stderr] ...
Dec 18 04:24:59.689 INFO [stderr] 142 |         "Please enter a valid expression." => block!({ break; }),
Dec 18 04:24:59.689 INFO [stderr]     |                                               ------------------ in this macro invocation
Dec 18 04:24:59.689 INFO [stderr] 
Dec 18 04:24:59.706 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:24:59.706 INFO [stderr]    --> src/main.rs:160:21
Dec 18 04:24:59.706 INFO [stderr]     |
Dec 18 04:24:59.706 INFO [stderr] 160 | fn parse(s: String, mut ans: f64) -> String {
Dec 18 04:24:59.706 INFO [stderr]     |                     ----^^^
Dec 18 04:24:59.706 INFO [stderr]     |                     |
Dec 18 04:24:59.706 INFO [stderr]     |                     help: remove this `mut`
Dec 18 04:24:59.706 INFO [stderr]     |
Dec 18 04:24:59.706 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 04:24:59.706 INFO [stderr] 
Dec 18 04:24:59.728 INFO [stderr] warning: unreachable statement
Dec 18 04:24:59.728 INFO [stderr]    --> src/main.rs:218:5
Dec 18 04:24:59.728 INFO [stderr]     |
Dec 18 04:24:59.728 INFO [stderr] 218 |     return "Goodbye!".to_string();
Dec 18 04:24:59.728 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:24:59.728 INFO [stderr] 
Dec 18 04:24:59.764 INFO [stderr] warning: unused variable: `string_help`
Dec 18 04:24:59.764 INFO [stderr]    --> src/main.rs:132:9
Dec 18 04:24:59.764 INFO [stderr]     |
Dec 18 04:24:59.764 INFO [stderr] 132 |     let string_help = HELP.to_string();
Dec 18 04:24:59.764 INFO [stderr]     |         ^^^^^^^^^^^ help: consider using `_string_help` instead
Dec 18 04:24:59.764 INFO [stderr]     |
Dec 18 04:24:59.764 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 04:24:59.764 INFO [stderr] 
Dec 18 04:24:59.764 INFO [stderr] warning: unused variable: `print`
Dec 18 04:24:59.764 INFO [stderr]    --> src/main.rs:135:9
Dec 18 04:24:59.764 INFO [stderr]     |
Dec 18 04:24:59.764 INFO [stderr] 135 |     let print: bool;
Dec 18 04:24:59.764 INFO [stderr]     |         ^^^^^ help: consider using `_print` instead
Dec 18 04:24:59.764 INFO [stderr] 
Dec 18 04:24:59.788 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:24:59.788 INFO [stderr]    --> src/main.rs:160:21
Dec 18 04:24:59.788 INFO [stderr]     |
Dec 18 04:24:59.788 INFO [stderr] 160 | fn parse(s: String, mut ans: f64) -> String {
Dec 18 04:24:59.788 INFO [stderr]     |                     ----^^^
Dec 18 04:24:59.788 INFO [stderr]     |                     |
Dec 18 04:24:59.788 INFO [stderr]     |                     help: remove this `mut`
Dec 18 04:24:59.788 INFO [stderr]     |
Dec 18 04:24:59.788 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 04:24:59.788 INFO [stderr] 
Dec 18 04:24:59.856 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
Dec 18 04:25:00.676 INFO running `"docker" "inspect" "fdc575ef10e02b4cbba35fd9fefc95a1edab1d6d4cbb713f5d24bb6ce45e1f7f"`
Dec 18 04:25:01.074 INFO running `"docker" "rm" "-f" "fdc575ef10e02b4cbba35fd9fefc95a1edab1d6d4cbb713f5d24bb6ce45e1f7f"`
Dec 18 04:25:01.361 INFO [stdout] fdc575ef10e02b4cbba35fd9fefc95a1edab1d6d4cbb713f5d24bb6ce45e1f7f