[INFO] updating cached repository shybyte/exercises-in-programming-style-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/shybyte/exercises-in-programming-style-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/shybyte/exercises-in-programming-style-rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/shybyte/exercises-in-programming-style-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/shybyte/exercises-in-programming-style-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/shybyte/exercises-in-programming-style-rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/shybyte/exercises-in-programming-style-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/shybyte/exercises-in-programming-style-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eeb1242d7416b4a4b163f9be2fdb4c19984f436f
[INFO] sha for GitHub repo shybyte/exercises-in-programming-style-rust: eeb1242d7416b4a4b163f9be2fdb4c19984f436f
[INFO] validating manifest of shybyte/exercises-in-programming-style-rust on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of shybyte/exercises-in-programming-style-rust on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing shybyte/exercises-in-programming-style-rust
[INFO] finished frobbing shybyte/exercises-in-programming-style-rust
[INFO] frobbed toml for shybyte/exercises-in-programming-style-rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/shybyte/exercises-in-programming-style-rust/Cargo.toml
[INFO] started frobbing shybyte/exercises-in-programming-style-rust
[INFO] finished frobbing shybyte/exercises-in-programming-style-rust
[INFO] frobbed toml for shybyte/exercises-in-programming-style-rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/shybyte/exercises-in-programming-style-rust/Cargo.toml
[INFO] crate shybyte/exercises-in-programming-style-rust has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing shybyte/exercises-in-programming-style-rust against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/shybyte/exercises-in-programming-style-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] 6da9857e359a543a48ce34130fe02f05fad11a5961fb627a188eea7f15e5ed5e
[INFO] running `"docker" "start" "-a" "6da9857e359a543a48ce34130fe02f05fad11a5961fb627a188eea7f15e5ed5e"`
[INFO] [stderr]    Compiling exercises_in_programming_style_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     /// Takes a path to a file and assigns the entire
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     /// Replaces all nonalphanumeric chars in data with white space
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     /// Scans data for words, filling the global variable words
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     /// Scans data for words, filling the global variable words
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     /// Creates a list of pairs associating words with frequencies
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     /// Sorts word_freqs by frequency
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.56s
[INFO] running `"docker" "inspect" "6da9857e359a543a48ce34130fe02f05fad11a5961fb627a188eea7f15e5ed5e"`
[INFO] running `"docker" "rm" "-f" "6da9857e359a543a48ce34130fe02f05fad11a5961fb627a188eea7f15e5ed5e"`
[INFO] [stdout] 6da9857e359a543a48ce34130fe02f05fad11a5961fb627a188eea7f15e5ed5e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/shybyte/exercises-in-programming-style-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 247ac89abbe94ec47763447b546960113179dc14d2e827bd48bed3111a4f11a2
[INFO] running `"docker" "start" "-a" "247ac89abbe94ec47763447b546960113179dc14d2e827bd48bed3111a4f11a2"`
[INFO] [stderr]    Compiling exercises_in_programming_style_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     /// Takes a path to a file and assigns the entire
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     /// Replaces all nonalphanumeric chars in data with white space
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     /// Scans data for words, filling the global variable words
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     /// Scans data for words, filling the global variable words
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     /// Creates a list of pairs associating words with frequencies
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: doc comment not used by rustdoc
[INFO] [stderr]   --> src/bin/04-cookbook.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     /// Sorts word_freqs by frequency
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `"docker" "inspect" "247ac89abbe94ec47763447b546960113179dc14d2e827bd48bed3111a4f11a2"`
[INFO] running `"docker" "rm" "-f" "247ac89abbe94ec47763447b546960113179dc14d2e827bd48bed3111a4f11a2"`
[INFO] [stdout] 247ac89abbe94ec47763447b546960113179dc14d2e827bd48bed3111a4f11a2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-6/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/shybyte/exercises-in-programming-style-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "test" "--frozen"`
[INFO] [stdout] c1c915ae807dd8e37d3f5ff0a2a9a83858e3af1d4e9e2572982abdd6ace70a33
[INFO] running `"docker" "start" "-a" "c1c915ae807dd8e37d3f5ff0a2a9a83858e3af1d4e9e2572982abdd6ace70a33"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/03_monolith-699348aa35f98935
[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] [stderr]      Running /opt/crater/target/debug/deps/04_cookbook-58f4fba4038788a8
[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] [stderr]      Running /opt/crater/target/debug/deps/05_pipeline-18355591e00f6557
[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] [stderr]      Running /opt/crater/target/debug/deps/06_code_golf-bf827068ef6c877d
[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] [stderr]      Running /opt/crater/target/debug/deps/07_infinite_mirror-50e28c74b246aa43
[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] [stderr]      Running /opt/crater/target/debug/deps/09_the_one-cab0c8907bb75828
[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] [stderr]      Running /opt/crater/target/debug/deps/10_things-7793737b2bf71443
[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] [stderr]      Running /opt/crater/target/debug/deps/42_rusty-a7476b30b31fc114
[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] [stderr]      Running /opt/crater/target/debug/deps/exercises_in_programming_style_rust-710097a8e0d9c556
[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" "c1c915ae807dd8e37d3f5ff0a2a9a83858e3af1d4e9e2572982abdd6ace70a33"`
[INFO] running `"docker" "rm" "-f" "c1c915ae807dd8e37d3f5ff0a2a9a83858e3af1d4e9e2572982abdd6ace70a33"`
[INFO] [stdout] c1c915ae807dd8e37d3f5ff0a2a9a83858e3af1d4e9e2572982abdd6ace70a33