[INFO] cloning repository https://github.com/agmcleod/adventofcode-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/agmcleod/adventofcode-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9298783b1922e5959e4f58199418dcac7e86d9e5
[INFO] testing agmcleod/adventofcode-2020 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagmcleod%2Fadventofcode-2020" "/workspace/builds/worker-32/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-32/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/agmcleod/adventofcode-2020 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/agmcleod/adventofcode-2020
[INFO] finished tweaking git repo https://github.com/agmcleod/adventofcode-2020
[INFO] tweaked toml for git repo https://github.com/agmcleod/adventofcode-2020 written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] crate git repo https://github.com/agmcleod/adventofcode-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5891992a0a7eea903a2b4c5d28575ad20b3c00d39c9e76a368398297ee5e8dc5
[INFO] running `Command { std: "docker" "start" "-a" "5891992a0a7eea903a2b4c5d28575ad20b3c00d39c9e76a368398297ee5e8dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5891992a0a7eea903a2b4c5d28575ad20b3c00d39c9e76a368398297ee5e8dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5891992a0a7eea903a2b4c5d28575ad20b3c00d39c9e76a368398297ee5e8dc5", kill_on_drop: false }`
[INFO] [stdout] 5891992a0a7eea903a2b4c5d28575ad20b3c00d39c9e76a368398297ee5e8dc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bea7d5e9b409b3e52b8d064d1b06a88b537c9e580b28e686a87358bc517acf9a
[INFO] running `Command { std: "docker" "start" "-a" "bea7d5e9b409b3e52b8d064d1b06a88b537c9e580b28e686a87358bc517acf9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_input v0.1.0 (/opt/rustwide/workdir/read_input)
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling twentythree v0.1.0 (/opt/rustwide/workdir/23)
[INFO] [stderr]    Compiling twentyfive v0.1.0 (/opt/rustwide/workdir/25)
[INFO] [stderr]    Compiling fifteen v0.1.0 (/opt/rustwide/workdir/15)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling three v0.1.0 (/opt/rustwide/workdir/3)
[INFO] [stderr]    Compiling twenty v0.1.0 (/opt/rustwide/workdir/20)
[INFO] [stderr]    Compiling one v0.1.0 (/opt/rustwide/workdir/1)
[INFO] [stderr]    Compiling sixteen v0.1.0 (/opt/rustwide/workdir/16)
[INFO] [stderr]    Compiling five v0.1.0 (/opt/rustwide/workdir/5)
[INFO] [stderr]    Compiling eleven v0.1.0 (/opt/rustwide/workdir/11)
[INFO] [stderr]    Compiling two v0.1.0 (/opt/rustwide/workdir/2)
[INFO] [stderr]    Compiling nine v0.1.0 (/opt/rustwide/workdir/9)
[INFO] [stderr]    Compiling twentyone v0.1.0 (/opt/rustwide/workdir/21)
[INFO] [stderr]    Compiling twentyfour v0.1.0 (/opt/rustwide/workdir/24)
[INFO] [stderr]    Compiling seven v0.1.0 (/opt/rustwide/workdir/7)
[INFO] [stderr]    Compiling fourteen v0.1.0 (/opt/rustwide/workdir/14)
[INFO] [stderr]    Compiling seventeen v0.1.0 (/opt/rustwide/workdir/17)
[INFO] [stderr]    Compiling twentytwo v0.1.0 (/opt/rustwide/workdir/22)
[INFO] [stderr]    Compiling eight v0.1.0 (/opt/rustwide/workdir/8)
[INFO] [stderr]    Compiling thirteen v0.1.0 (/opt/rustwide/workdir/13)
[INFO] [stderr]    Compiling six v0.1.0 (/opt/rustwide/workdir/6)
[INFO] [stderr]    Compiling twelve v0.1.0 (/opt/rustwide/workdir/12)
[INFO] [stderr]    Compiling ten v0.1.0 (/opt/rustwide/workdir/10)
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]    --> 21/src/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut counter = 0;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling nineteen v0.1.0 (/opt/rustwide/workdir/19)
[INFO] [stderr]    Compiling four v0.1.0 (/opt/rustwide/workdir/4)
[INFO] [stderr]    Compiling eighteen v0.1.0 (/opt/rustwide/workdir/18)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.42s
[INFO] running `Command { std: "docker" "inspect" "bea7d5e9b409b3e52b8d064d1b06a88b537c9e580b28e686a87358bc517acf9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bea7d5e9b409b3e52b8d064d1b06a88b537c9e580b28e686a87358bc517acf9a", kill_on_drop: false }`
[INFO] [stdout] bea7d5e9b409b3e52b8d064d1b06a88b537c9e580b28e686a87358bc517acf9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 227109702e458b501f24b7cdab343c5e0080b8905b7e0ddeb36561246162af1a
[INFO] running `Command { std: "docker" "start" "-a" "227109702e458b501f24b7cdab343c5e0080b8905b7e0ddeb36561246162af1a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling twentythree v0.1.0 (/opt/rustwide/workdir/23)
[INFO] [stderr]    Compiling twentyfive v0.1.0 (/opt/rustwide/workdir/25)
[INFO] [stderr]    Compiling read_input v0.1.0 (/opt/rustwide/workdir/read_input)
[INFO] [stderr]    Compiling fifteen v0.1.0 (/opt/rustwide/workdir/15)
[INFO] [stderr]    Compiling seven v0.1.0 (/opt/rustwide/workdir/7)
[INFO] [stderr]    Compiling twelve v0.1.0 (/opt/rustwide/workdir/12)
[INFO] [stderr]    Compiling twenty v0.1.0 (/opt/rustwide/workdir/20)
[INFO] [stderr]    Compiling eleven v0.1.0 (/opt/rustwide/workdir/11)
[INFO] [stderr]    Compiling twentyfour v0.1.0 (/opt/rustwide/workdir/24)
[INFO] [stderr]    Compiling nine v0.1.0 (/opt/rustwide/workdir/9)
[INFO] [stderr]    Compiling twentyone v0.1.0 (/opt/rustwide/workdir/21)
[INFO] [stderr]    Compiling two v0.1.0 (/opt/rustwide/workdir/2)
[INFO] [stderr]    Compiling twentytwo v0.1.0 (/opt/rustwide/workdir/22)
[INFO] [stderr]    Compiling ten v0.1.0 (/opt/rustwide/workdir/10)
[INFO] [stderr]    Compiling one v0.1.0 (/opt/rustwide/workdir/1)
[INFO] [stderr]    Compiling eight v0.1.0 (/opt/rustwide/workdir/8)
[INFO] [stderr]    Compiling sixteen v0.1.0 (/opt/rustwide/workdir/16)
[INFO] [stderr]    Compiling fourteen v0.1.0 (/opt/rustwide/workdir/14)
[INFO] [stderr]    Compiling three v0.1.0 (/opt/rustwide/workdir/3)
[INFO] [stderr]    Compiling six v0.1.0 (/opt/rustwide/workdir/6)
[INFO] [stderr]    Compiling seventeen v0.1.0 (/opt/rustwide/workdir/17)
[INFO] [stderr]    Compiling thirteen v0.1.0 (/opt/rustwide/workdir/13)
[INFO] [stderr]    Compiling five v0.1.0 (/opt/rustwide/workdir/5)
[INFO] [stderr]    Compiling nineteen v0.1.0 (/opt/rustwide/workdir/19)
[INFO] [stderr]    Compiling four v0.1.0 (/opt/rustwide/workdir/4)
[INFO] [stderr]    Compiling eighteen v0.1.0 (/opt/rustwide/workdir/18)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     try!(file.read_to_string(&mut text));
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]  --> read_input/src/lib.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut file = try!(File::open(path));
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `counter` is assigned to, but never used
[INFO] [stdout]    --> 21/src/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |     let mut counter = 0;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_counter` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.77s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/eight-4f25bef641714ec7)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/eighteen-26d7e10a3a7257ca)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/eleven-d88fe63741cd5dcf)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/fifteen-227df76ba61fa56d)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/five-2d5e69c15b97bc7d)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/four-c3ff7550f8ceca8e)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/fourteen-a470d9de5219377b)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/nine-e8fdfc33227008f2)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/nineteen-b78309338a542f78)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/one-0cf2c05a00c3c1cb)
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_input-5e183ddabda0e3a1)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/seven-c0af8a5c53b17e0d)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/seventeen-2daf4f3dfdf70ceb)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/six-a83a2a16c99747cc)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/sixteen-48f8c7290860a3b7)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/ten-531f8d679c426abb)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/thirteen-2044df91af884562)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/three-b3be1bd63e405eb9)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twelve-7a43963f287c4ec6)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twenty-4de56948f1472fd8)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twentyfive-2783bad486d4ead0)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twentyfour-021da93e46ca69d5)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twentyone-d9546d3921a16881)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twentythree-38ef655eedda0259)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/twentytwo-1b794278afd8c580)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/two-1ae055acb0c6f007)
[INFO] running `Command { std: "docker" "inspect" "227109702e458b501f24b7cdab343c5e0080b8905b7e0ddeb36561246162af1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "227109702e458b501f24b7cdab343c5e0080b8905b7e0ddeb36561246162af1a", kill_on_drop: false }`
[INFO] [stdout] 227109702e458b501f24b7cdab343c5e0080b8905b7e0ddeb36561246162af1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7743030ded1aac16969042fe144df155b71548075f621df4990a00c4abca7a0a
[INFO] running `Command { std: "docker" "start" "-a" "7743030ded1aac16969042fe144df155b71548075f621df4990a00c4abca7a0a", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> read_input/src/lib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     try!(file.read_to_string(&mut text));
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]  --> read_input/src/lib.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut file = try!(File::open(path));
[INFO] [stderr]   |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `read_input` (lib) generated 2 warnings
[INFO] [stderr] warning: `read_input` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: variable `counter` is assigned to, but never used
[INFO] [stderr]    --> 21/src/main.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |     let mut counter = 0;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]     = note: consider using `_counter` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `twentyone` (bin "twentyone" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/eight-4f25bef641714ec7)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/eighteen-26d7e10a3a7257ca)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_multiply_p2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/eleven-d88fe63741cd5dcf)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_p2_neighbour_counts ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fifteen-227df76ba61fa56d)
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[INFO] [stdout] running 0 tests
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/five-2d5e69c15b97bc7d)
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[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/four-c3ff7550f8ceca8e)
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[INFO] [stdout] running 0 tests
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[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fourteen-a470d9de5219377b)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nine-e8fdfc33227008f2)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/nineteen-b78309338a542f78)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/one-0cf2c05a00c3c1cb)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_input-5e183ddabda0e3a1)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/seven-c0af8a5c53b17e0d)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/seventeen-2daf4f3dfdf70ceb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/six-a83a2a16c99747cc)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
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[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/sixteen-48f8c7290860a3b7)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ten-531f8d679c426abb)
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[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/thirteen-2044df91af884562)
[INFO] [stdout] 
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[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/three-b3be1bd63e405eb9)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twelve-7a43963f287c4ec6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_rotations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twenty-4de56948f1472fd8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twentyfive-2783bad486d4ead0)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twentyfour-021da93e46ca69d5)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twentyone-d9546d3921a16881)
[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; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twentythree-38ef655eedda0259)
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[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/twentytwo-1b794278afd8c580)
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[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/two-1ae055acb0c6f007)
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[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests read_input
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[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7743030ded1aac16969042fe144df155b71548075f621df4990a00c4abca7a0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7743030ded1aac16969042fe144df155b71548075f621df4990a00c4abca7a0a", kill_on_drop: false }`
[INFO] [stdout] 7743030ded1aac16969042fe144df155b71548075f621df4990a00c4abca7a0a