Dec 19 12:51:43.170 INFO checking mcon/craftinginterpreters-rust against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:51:43.171 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mcon/craftinginterpreters-rust:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:51:43.466 INFO [stdout] 3fbbe42ed1e28c3a4f747b2c0eb475899188bfcf3bb239d72b3222af928f84bf
Dec 19 12:51:43.470 INFO running `"docker" "start" "-a" "3fbbe42ed1e28c3a4f747b2c0eb475899188bfcf3bb239d72b3222af928f84bf"`
Dec 19 12:51:45.264 INFO [stderr]     Checking argparse v0.2.2
Dec 19 12:51:46.070 INFO [stderr]     Checking lox-rust v0.1.0 (/opt/crater/workdir)
Dec 19 12:51:46.324 INFO [stderr] warning: unused import: `scanner::TokenParseResult::TokenFound`
Dec 19 12:51:46.324 INFO [stderr]  --> src/scanner.rs:1:5
Dec 19 12:51:46.324 INFO [stderr]   |
Dec 19 12:51:46.324 INFO [stderr] 1 | use scanner::TokenParseResult::TokenFound;
Dec 19 12:51:46.324 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.324 INFO [stderr]   |
Dec 19 12:51:46.324 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:51:46.324 INFO [stderr] 
Dec 19 12:51:46.324 INFO [stderr] warning: unused import: `scanner::TokenParseResult::Error`
Dec 19 12:51:46.324 INFO [stderr]  --> src/scanner.rs:2:5
Dec 19 12:51:46.324 INFO [stderr]   |
Dec 19 12:51:46.324 INFO [stderr] 2 | use scanner::TokenParseResult::Error;
Dec 19 12:51:46.324 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.324 INFO [stderr] 
Dec 19 12:51:46.324 INFO [stderr] warning: unused import: `scanner::TokenParseResult::NoToken`
Dec 19 12:51:46.324 INFO [stderr]  --> src/scanner.rs:3:5
Dec 19 12:51:46.324 INFO [stderr]   |
Dec 19 12:51:46.324 INFO [stderr] 3 | use scanner::TokenParseResult::NoToken;
Dec 19 12:51:46.324 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.324 INFO [stderr] 
Dec 19 12:51:46.408 INFO [stderr] warning: unused import: `scanner::TokenParseResult::TokenFound`
Dec 19 12:51:46.416 INFO [stderr]  --> src/scanner.rs:1:5
Dec 19 12:51:46.417 INFO [stderr]   |
Dec 19 12:51:46.417 INFO [stderr] 1 | use scanner::TokenParseResult::TokenFound;
Dec 19 12:51:46.417 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.417 INFO [stderr]   |
Dec 19 12:51:46.417 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:51:46.417 INFO [stderr] 
Dec 19 12:51:46.417 INFO [stderr] warning: unused import: `scanner::TokenParseResult::Error`
Dec 19 12:51:46.417 INFO [stderr]  --> src/scanner.rs:2:5
Dec 19 12:51:46.417 INFO [stderr]   |
Dec 19 12:51:46.417 INFO [stderr] 2 | use scanner::TokenParseResult::Error;
Dec 19 12:51:46.417 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.424 INFO [stderr] 
Dec 19 12:51:46.424 INFO [stderr] warning: unused import: `scanner::TokenParseResult::NoToken`
Dec 19 12:51:46.424 INFO [stderr]  --> src/scanner.rs:3:5
Dec 19 12:51:46.424 INFO [stderr]   |
Dec 19 12:51:46.424 INFO [stderr] 3 | use scanner::TokenParseResult::NoToken;
Dec 19 12:51:46.424 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.424 INFO [stderr] 
Dec 19 12:51:46.448 INFO [stderr] warning: unreachable statement
Dec 19 12:51:46.449 INFO [stderr]    --> src/scanner.rs:182:9
Dec 19 12:51:46.452 INFO [stderr]     |
Dec 19 12:51:46.452 INFO [stderr] 182 |         self.errors.push(format!("Unknown error parsing number on line {}", self.line));
Dec 19 12:51:46.452 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.468 INFO [stderr]     |
Dec 19 12:51:46.469 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 19 12:51:46.469 INFO [stderr] 
Dec 19 12:51:46.532 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.533 INFO [stderr]   --> src/scanner.rs:76:13
Dec 19 12:51:46.533 INFO [stderr]    |
Dec 19 12:51:46.533 INFO [stderr] 76 |         let mut temp_copy = self.source.clone();
Dec 19 12:51:46.534 INFO [stderr]    |             ----^^^^^^^^^
Dec 19 12:51:46.534 INFO [stderr]    |             |
Dec 19 12:51:46.534 INFO [stderr]    |             help: remove this `mut`
Dec 19 12:51:46.548 INFO [stderr]    |
Dec 19 12:51:46.549 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 12:51:46.549 INFO [stderr] 
Dec 19 12:51:46.579 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.579 INFO [stderr]    --> src/scanner.rs:148:17
Dec 19 12:51:46.579 INFO [stderr]     |
Dec 19 12:51:46.579 INFO [stderr] 148 |             let mut string_iter =
Dec 19 12:51:46.579 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 19 12:51:46.579 INFO [stderr]     |                 |
Dec 19 12:51:46.579 INFO [stderr]     |                 help: remove this `mut`
Dec 19 12:51:46.584 INFO [stderr] 
Dec 19 12:51:46.588 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.592 INFO [stderr]    --> src/scanner.rs:166:17
Dec 19 12:51:46.592 INFO [stderr]     |
Dec 19 12:51:46.592 INFO [stderr] 166 |             let mut string_iter =
Dec 19 12:51:46.592 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 19 12:51:46.592 INFO [stderr]     |                 |
Dec 19 12:51:46.592 INFO [stderr]     |                 help: remove this `mut`
Dec 19 12:51:46.592 INFO [stderr] 
Dec 19 12:51:46.616 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.616 INFO [stderr]    --> src/scanner.rs:189:13
Dec 19 12:51:46.616 INFO [stderr]     |
Dec 19 12:51:46.616 INFO [stderr] 189 |         let mut string_iter =
Dec 19 12:51:46.616 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 19 12:51:46.616 INFO [stderr]     |             |
Dec 19 12:51:46.616 INFO [stderr]     |             help: remove this `mut`
Dec 19 12:51:46.616 INFO [stderr] 
Dec 19 12:51:46.620 INFO [stderr] warning: enum is never used: `TokenParseResult`
Dec 19 12:51:46.620 INFO [stderr]   --> src/scanner.rs:41:1
Dec 19 12:51:46.620 INFO [stderr]    |
Dec 19 12:51:46.620 INFO [stderr] 41 | enum TokenParseResult {
Dec 19 12:51:46.620 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.620 INFO [stderr]    |
Dec 19 12:51:46.620 INFO [stderr] note: lint level defined here
Dec 19 12:51:46.620 INFO [stderr]   --> src/scanner.rs:39:8
Dec 19 12:51:46.620 INFO [stderr]    |
Dec 19 12:51:46.620 INFO [stderr] 39 | #[warn(dead_code)]
Dec 19 12:51:46.620 INFO [stderr]    |        ^^^^^^^^^
Dec 19 12:51:46.620 INFO [stderr] 
Dec 19 12:51:46.631 INFO [stderr] warning: unreachable statement
Dec 19 12:51:46.632 INFO [stderr]    --> src/scanner.rs:182:9
Dec 19 12:51:46.632 INFO [stderr]     |
Dec 19 12:51:46.632 INFO [stderr] 182 |         self.errors.push(format!("Unknown error parsing number on line {}", self.line));
Dec 19 12:51:46.632 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.632 INFO [stderr]     |
Dec 19 12:51:46.632 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 19 12:51:46.632 INFO [stderr] 
Dec 19 12:51:46.693 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.693 INFO [stderr]   --> src/scanner.rs:76:13
Dec 19 12:51:46.693 INFO [stderr]    |
Dec 19 12:51:46.693 INFO [stderr] 76 |         let mut temp_copy = self.source.clone();
Dec 19 12:51:46.693 INFO [stderr]    |             ----^^^^^^^^^
Dec 19 12:51:46.693 INFO [stderr]    |             |
Dec 19 12:51:46.693 INFO [stderr]    |             help: remove this `mut`
Dec 19 12:51:46.693 INFO [stderr]    |
Dec 19 12:51:46.693 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 12:51:46.693 INFO [stderr] 
Dec 19 12:51:46.708 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.708 INFO [stderr]    --> src/scanner.rs:148:17
Dec 19 12:51:46.708 INFO [stderr]     |
Dec 19 12:51:46.708 INFO [stderr] 148 |             let mut string_iter =
Dec 19 12:51:46.708 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 19 12:51:46.708 INFO [stderr]     |                 |
Dec 19 12:51:46.708 INFO [stderr]     |                 help: remove this `mut`
Dec 19 12:51:46.708 INFO [stderr] 
Dec 19 12:51:46.709 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.709 INFO [stderr]    --> src/scanner.rs:166:17
Dec 19 12:51:46.709 INFO [stderr]     |
Dec 19 12:51:46.709 INFO [stderr] 166 |             let mut string_iter =
Dec 19 12:51:46.709 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 19 12:51:46.709 INFO [stderr]     |                 |
Dec 19 12:51:46.709 INFO [stderr]     |                 help: remove this `mut`
Dec 19 12:51:46.709 INFO [stderr] 
Dec 19 12:51:46.716 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:51:46.716 INFO [stderr]    --> src/scanner.rs:189:13
Dec 19 12:51:46.716 INFO [stderr]     |
Dec 19 12:51:46.716 INFO [stderr] 189 |         let mut string_iter =
Dec 19 12:51:46.716 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 19 12:51:46.716 INFO [stderr]     |             |
Dec 19 12:51:46.716 INFO [stderr]     |             help: remove this `mut`
Dec 19 12:51:46.716 INFO [stderr] 
Dec 19 12:51:46.716 INFO [stderr] warning: enum is never used: `TokenParseResult`
Dec 19 12:51:46.716 INFO [stderr]   --> src/scanner.rs:41:1
Dec 19 12:51:46.716 INFO [stderr]    |
Dec 19 12:51:46.716 INFO [stderr] 41 | enum TokenParseResult {
Dec 19 12:51:46.716 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:51:46.716 INFO [stderr]    |
Dec 19 12:51:46.716 INFO [stderr] note: lint level defined here
Dec 19 12:51:46.716 INFO [stderr]   --> src/scanner.rs:39:8
Dec 19 12:51:46.716 INFO [stderr]    |
Dec 19 12:51:46.716 INFO [stderr] 39 | #[warn(dead_code)]
Dec 19 12:51:46.716 INFO [stderr]    |        ^^^^^^^^^
Dec 19 12:51:46.716 INFO [stderr] 
Dec 19 12:51:46.770 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
Dec 19 12:51:47.609 INFO running `"docker" "inspect" "3fbbe42ed1e28c3a4f747b2c0eb475899188bfcf3bb239d72b3222af928f84bf"`
Dec 19 12:51:47.866 INFO running `"docker" "rm" "-f" "3fbbe42ed1e28c3a4f747b2c0eb475899188bfcf3bb239d72b3222af928f84bf"`
Dec 19 12:51:48.252 INFO [stdout] 3fbbe42ed1e28c3a4f747b2c0eb475899188bfcf3bb239d72b3222af928f84bf