[INFO] cloning repository sivakon/rust-exp
[INFO] running `"git" "clone" "--bare" "git://github.com/sivakon/rust-exp.git" "work/cache/sources/gh/sivakon/rust-exp"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/sivakon/rust-exp'...
[INFO] running `"git" "clone" "work/cache/sources/gh/sivakon/rust-exp" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/sivakon/rust-exp"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/sivakon/rust-exp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sivakon/rust-exp" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sivakon/rust-exp"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sivakon/rust-exp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6411253d18b8a00ba05b0b068ed9a3b91a8a859d
[INFO] sha for GitHub repo sivakon/rust-exp: 6411253d18b8a00ba05b0b068ed9a3b91a8a859d
[INFO] validating manifest of sivakon/rust-exp on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sivakon/rust-exp on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sivakon/rust-exp
[INFO] finished frobbing sivakon/rust-exp
[INFO] frobbed toml for sivakon/rust-exp written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/sivakon/rust-exp/Cargo.toml
[INFO] started frobbing sivakon/rust-exp
[INFO] finished frobbing sivakon/rust-exp
[INFO] frobbed toml for sivakon/rust-exp written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sivakon/rust-exp/Cargo.toml
[INFO] crate sivakon/rust-exp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sivakon/rust-exp against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sivakon/rust-exp:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 22da82c2852ab16c38cc5ea70c9acac11145049e5256d0a753a2ec50c3b8a2c5
[INFO] running `"docker" "start" "-a" "22da82c2852ab16c38cc5ea70c9acac11145049e5256d0a753a2ec50c3b8a2c5"`
[INFO] [stderr]    Compiling rustlvl2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stderr]   --> src/main.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | #[allow(unused_doc_comment)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  | /     /**
[INFO] [stderr] 98  | |      * this is an unused documentation step
[INFO] [stderr] 99  | |      * HASHMAP
[INFO] [stderr] 100 | |      */
[INFO] [stderr]     | |_______^
[INFO] [stderr] ...
[INFO] [stderr] 103 |       let mut scores = HashMap::new();
[INFO] [stderr]     |       -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 | /     /**
[INFO] [stderr] 149 | |      * Some exercises
[INFO] [stderr] 150 | |      */
[INFO] [stderr]     | |_______^
[INFO] [stderr] 151 |       let v = vec![1,2,3,4,5];
[INFO] [stderr]     |       ------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `"docker" "inspect" "22da82c2852ab16c38cc5ea70c9acac11145049e5256d0a753a2ec50c3b8a2c5"`
[INFO] running `"docker" "rm" "-f" "22da82c2852ab16c38cc5ea70c9acac11145049e5256d0a753a2ec50c3b8a2c5"`
[INFO] [stdout] 22da82c2852ab16c38cc5ea70c9acac11145049e5256d0a753a2ec50c3b8a2c5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sivakon/rust-exp:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 251aab3a9c2be2b5b7b21a5c7a946baeb6d5e4d63669311f2e82a9ab5bdbeaaa
[INFO] running `"docker" "start" "-a" "251aab3a9c2be2b5b7b21a5c7a946baeb6d5e4d63669311f2e82a9ab5bdbeaaa"`
[INFO] [stderr]    Compiling rustlvl2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stderr]   --> src/main.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 | #[allow(unused_doc_comment)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(renamed_and_removed_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:97:5
[INFO] [stderr]     |
[INFO] [stderr] 97  | /     /**
[INFO] [stderr] 98  | |      * this is an unused documentation step
[INFO] [stderr] 99  | |      * HASHMAP
[INFO] [stderr] 100 | |      */
[INFO] [stderr]     | |_______^
[INFO] [stderr] ...
[INFO] [stderr] 103 |       let mut scores = HashMap::new();
[INFO] [stderr]     |       -------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 | /     /**
[INFO] [stderr] 149 | |      * Some exercises
[INFO] [stderr] 150 | |      */
[INFO] [stderr]     | |_______^
[INFO] [stderr] 151 |       let v = vec![1,2,3,4,5];
[INFO] [stderr]     |       ------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "251aab3a9c2be2b5b7b21a5c7a946baeb6d5e4d63669311f2e82a9ab5bdbeaaa"`
[INFO] running `"docker" "rm" "-f" "251aab3a9c2be2b5b7b21a5c7a946baeb6d5e4d63669311f2e82a9ab5bdbeaaa"`
[INFO] [stdout] 251aab3a9c2be2b5b7b21a5c7a946baeb6d5e4d63669311f2e82a9ab5bdbeaaa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-3/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/sivakon/rust-exp:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 1e842da3b227ce9e1362ee057e7b267b2b1685aba53763cc821e8cd5549f4c89
[INFO] running `"docker" "start" "-a" "1e842da3b227ce9e1362ee057e7b267b2b1685aba53763cc821e8cd5549f4c89"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustlvl2-4656f63ade93e410
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1e842da3b227ce9e1362ee057e7b267b2b1685aba53763cc821e8cd5549f4c89"`
[INFO] running `"docker" "rm" "-f" "1e842da3b227ce9e1362ee057e7b267b2b1685aba53763cc821e8cd5549f4c89"`
[INFO] [stdout] 1e842da3b227ce9e1362ee057e7b267b2b1685aba53763cc821e8cd5549f4c89