Dec 17 19:51:58.503 INFO checking mcon/craftinginterpreters-rust against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:51:58.503 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 19:51:59.016 INFO [stdout] a7c42041c82f3103b330be1c3d01c4a58d9659a15248770cd4f3d012d3af7e11
Dec 17 19:51:59.020 INFO running `"docker" "start" "-a" "a7c42041c82f3103b330be1c3d01c4a58d9659a15248770cd4f3d012d3af7e11"`
Dec 17 19:52:00.702 INFO [stderr]     Checking argparse v0.2.2
Dec 17 19:52:01.456 INFO [stderr]     Checking lox-rust v0.1.0 (/opt/crater/workdir)
Dec 17 19:52:01.676 INFO [stderr] warning: unused import: `scanner::TokenParseResult::TokenFound`
Dec 17 19:52:01.676 INFO [stderr]  --> src/scanner.rs:1:5
Dec 17 19:52:01.676 INFO [stderr]   |
Dec 17 19:52:01.676 INFO [stderr] 1 | use scanner::TokenParseResult::TokenFound;
Dec 17 19:52:01.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.676 INFO [stderr]   |
Dec 17 19:52:01.676 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:52:01.676 INFO [stderr] 
Dec 17 19:52:01.676 INFO [stderr] warning: unused import: `scanner::TokenParseResult::Error`
Dec 17 19:52:01.676 INFO [stderr]  --> src/scanner.rs:2:5
Dec 17 19:52:01.676 INFO [stderr]   |
Dec 17 19:52:01.676 INFO [stderr] 2 | use scanner::TokenParseResult::Error;
Dec 17 19:52:01.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.676 INFO [stderr] 
Dec 17 19:52:01.676 INFO [stderr] warning: unused import: `scanner::TokenParseResult::NoToken`
Dec 17 19:52:01.676 INFO [stderr]  --> src/scanner.rs:3:5
Dec 17 19:52:01.676 INFO [stderr]   |
Dec 17 19:52:01.676 INFO [stderr] 3 | use scanner::TokenParseResult::NoToken;
Dec 17 19:52:01.676 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.676 INFO [stderr] 
Dec 17 19:52:01.720 INFO [stderr] warning: unused import: `scanner::TokenParseResult::TokenFound`
Dec 17 19:52:01.720 INFO [stderr]  --> src/scanner.rs:1:5
Dec 17 19:52:01.720 INFO [stderr]   |
Dec 17 19:52:01.720 INFO [stderr] 1 | use scanner::TokenParseResult::TokenFound;
Dec 17 19:52:01.720 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.720 INFO [stderr]   |
Dec 17 19:52:01.720 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 19:52:01.720 INFO [stderr] 
Dec 17 19:52:01.720 INFO [stderr] warning: unused import: `scanner::TokenParseResult::Error`
Dec 17 19:52:01.720 INFO [stderr]  --> src/scanner.rs:2:5
Dec 17 19:52:01.720 INFO [stderr]   |
Dec 17 19:52:01.720 INFO [stderr] 2 | use scanner::TokenParseResult::Error;
Dec 17 19:52:01.720 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.720 INFO [stderr] 
Dec 17 19:52:01.720 INFO [stderr] warning: unused import: `scanner::TokenParseResult::NoToken`
Dec 17 19:52:01.720 INFO [stderr]  --> src/scanner.rs:3:5
Dec 17 19:52:01.720 INFO [stderr]   |
Dec 17 19:52:01.720 INFO [stderr] 3 | use scanner::TokenParseResult::NoToken;
Dec 17 19:52:01.720 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.720 INFO [stderr] 
Dec 17 19:52:01.864 INFO [stderr] warning: unreachable statement
Dec 17 19:52:01.864 INFO [stderr]    --> src/scanner.rs:182:9
Dec 17 19:52:01.864 INFO [stderr]     |
Dec 17 19:52:01.864 INFO [stderr] 182 |         self.errors.push(format!("Unknown error parsing number on line {}", self.line));
Dec 17 19:52:01.864 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.864 INFO [stderr]     |
Dec 17 19:52:01.864 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 17 19:52:01.864 INFO [stderr] 
Dec 17 19:52:01.876 INFO [stderr] warning: unreachable statement
Dec 17 19:52:01.876 INFO [stderr]    --> src/scanner.rs:182:9
Dec 17 19:52:01.876 INFO [stderr]     |
Dec 17 19:52:01.876 INFO [stderr] 182 |         self.errors.push(format!("Unknown error parsing number on line {}", self.line));
Dec 17 19:52:01.876 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.876 INFO [stderr]     |
Dec 17 19:52:01.876 INFO [stderr]     = note: #[warn(unreachable_code)] on by default
Dec 17 19:52:01.876 INFO [stderr] 
Dec 17 19:52:01.918 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.918 INFO [stderr]   --> src/scanner.rs:76:13
Dec 17 19:52:01.918 INFO [stderr]    |
Dec 17 19:52:01.918 INFO [stderr] 76 |         let mut temp_copy = self.source.clone();
Dec 17 19:52:01.918 INFO [stderr]    |             ----^^^^^^^^^
Dec 17 19:52:01.918 INFO [stderr]    |             |
Dec 17 19:52:01.918 INFO [stderr]    |             help: remove this `mut`
Dec 17 19:52:01.918 INFO [stderr]    |
Dec 17 19:52:01.918 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 19:52:01.918 INFO [stderr] 
Dec 17 19:52:01.949 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.949 INFO [stderr]    --> src/scanner.rs:148:17
Dec 17 19:52:01.949 INFO [stderr]     |
Dec 17 19:52:01.949 INFO [stderr] 148 |             let mut string_iter =
Dec 17 19:52:01.949 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 17 19:52:01.949 INFO [stderr]     |                 |
Dec 17 19:52:01.949 INFO [stderr]     |                 help: remove this `mut`
Dec 17 19:52:01.949 INFO [stderr] 
Dec 17 19:52:01.949 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.949 INFO [stderr]   --> src/scanner.rs:76:13
Dec 17 19:52:01.949 INFO [stderr]    |
Dec 17 19:52:01.949 INFO [stderr] 76 |         let mut temp_copy = self.source.clone();
Dec 17 19:52:01.949 INFO [stderr]    |             ----^^^^^^^^^
Dec 17 19:52:01.949 INFO [stderr]    |             |
Dec 17 19:52:01.949 INFO [stderr]    |             help: remove this `mut`
Dec 17 19:52:01.949 INFO [stderr]    |
Dec 17 19:52:01.949 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 19:52:01.949 INFO [stderr] 
Dec 17 19:52:01.955 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.956 INFO [stderr]    --> src/scanner.rs:166:17
Dec 17 19:52:01.956 INFO [stderr]     |
Dec 17 19:52:01.956 INFO [stderr] 166 |             let mut string_iter =
Dec 17 19:52:01.956 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 17 19:52:01.956 INFO [stderr]     |                 |
Dec 17 19:52:01.956 INFO [stderr]     |                 help: remove this `mut`
Dec 17 19:52:01.956 INFO [stderr] 
Dec 17 19:52:01.960 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.960 INFO [stderr]    --> src/scanner.rs:189:13
Dec 17 19:52:01.960 INFO [stderr]     |
Dec 17 19:52:01.960 INFO [stderr] 189 |         let mut string_iter =
Dec 17 19:52:01.960 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 17 19:52:01.960 INFO [stderr]     |             |
Dec 17 19:52:01.960 INFO [stderr]     |             help: remove this `mut`
Dec 17 19:52:01.960 INFO [stderr] 
Dec 17 19:52:01.960 INFO [stderr] warning: enum is never used: `TokenParseResult`
Dec 17 19:52:01.960 INFO [stderr]   --> src/scanner.rs:41:1
Dec 17 19:52:01.960 INFO [stderr]    |
Dec 17 19:52:01.960 INFO [stderr] 41 | enum TokenParseResult {
Dec 17 19:52:01.960 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.960 INFO [stderr]    |
Dec 17 19:52:01.960 INFO [stderr] note: lint level defined here
Dec 17 19:52:01.960 INFO [stderr]   --> src/scanner.rs:39:8
Dec 17 19:52:01.960 INFO [stderr]    |
Dec 17 19:52:01.960 INFO [stderr] 39 | #[warn(dead_code)]
Dec 17 19:52:01.960 INFO [stderr]    |        ^^^^^^^^^
Dec 17 19:52:01.960 INFO [stderr] 
Dec 17 19:52:01.960 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.960 INFO [stderr]    --> src/scanner.rs:148:17
Dec 17 19:52:01.960 INFO [stderr]     |
Dec 17 19:52:01.960 INFO [stderr] 148 |             let mut string_iter =
Dec 17 19:52:01.960 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 17 19:52:01.960 INFO [stderr]     |                 |
Dec 17 19:52:01.960 INFO [stderr]     |                 help: remove this `mut`
Dec 17 19:52:01.960 INFO [stderr] 
Dec 17 19:52:01.964 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.964 INFO [stderr]    --> src/scanner.rs:166:17
Dec 17 19:52:01.967 INFO [stderr]     |
Dec 17 19:52:01.967 INFO [stderr] 166 |             let mut string_iter =
Dec 17 19:52:01.967 INFO [stderr]     |                 ----^^^^^^^^^^^
Dec 17 19:52:01.967 INFO [stderr]     |                 |
Dec 17 19:52:01.967 INFO [stderr]     |                 help: remove this `mut`
Dec 17 19:52:01.967 INFO [stderr] 
Dec 17 19:52:01.967 INFO [stderr] warning: variable does not need to be mutable
Dec 17 19:52:01.967 INFO [stderr]    --> src/scanner.rs:189:13
Dec 17 19:52:01.967 INFO [stderr]     |
Dec 17 19:52:01.967 INFO [stderr] 189 |         let mut string_iter =
Dec 17 19:52:01.967 INFO [stderr]     |             ----^^^^^^^^^^^
Dec 17 19:52:01.967 INFO [stderr]     |             |
Dec 17 19:52:01.967 INFO [stderr]     |             help: remove this `mut`
Dec 17 19:52:01.967 INFO [stderr] 
Dec 17 19:52:01.967 INFO [stderr] warning: enum is never used: `TokenParseResult`
Dec 17 19:52:01.967 INFO [stderr]   --> src/scanner.rs:41:1
Dec 17 19:52:01.967 INFO [stderr]    |
Dec 17 19:52:01.967 INFO [stderr] 41 | enum TokenParseResult {
Dec 17 19:52:01.967 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 19:52:01.967 INFO [stderr]    |
Dec 17 19:52:01.967 INFO [stderr] note: lint level defined here
Dec 17 19:52:01.967 INFO [stderr]   --> src/scanner.rs:39:8
Dec 17 19:52:01.967 INFO [stderr]    |
Dec 17 19:52:01.967 INFO [stderr] 39 | #[warn(dead_code)]
Dec 17 19:52:01.967 INFO [stderr]    |        ^^^^^^^^^
Dec 17 19:52:01.967 INFO [stderr] 
Dec 17 19:52:02.049 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
Dec 17 19:52:03.274 INFO running `"docker" "inspect" "a7c42041c82f3103b330be1c3d01c4a58d9659a15248770cd4f3d012d3af7e11"`
Dec 17 19:52:03.508 INFO running `"docker" "rm" "-f" "a7c42041c82f3103b330be1c3d01c4a58d9659a15248770cd4f3d012d3af7e11"`
Dec 17 19:52:03.756 INFO [stdout] a7c42041c82f3103b330be1c3d01c4a58d9659a15248770cd4f3d012d3af7e11