[INFO] cloning repository https://github.com/danydiaz91/rust_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danydiaz91/rust_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanydiaz91%2Frust_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanydiaz91%2Frust_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e28fe132a9b168b7e81490bf992b044be9840c27
[INFO] testing danydiaz91/rust_exercises against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanydiaz91%2Frust_exercises" "/workspace/builds/worker-46/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-46/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danydiaz91/rust_exercises on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/danydiaz91/rust_exercises
[INFO] finished tweaking git repo https://github.com/danydiaz91/rust_exercises
[INFO] tweaked toml for git repo https://github.com/danydiaz91/rust_exercises written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] crate git repo https://github.com/danydiaz91/rust_exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b67793f890f244c5376b42b747d9940a534a6457339c2b1d94ab1c5afe7b3533
[INFO] running `Command { std: "docker" "start" "-a" "b67793f890f244c5376b42b747d9940a534a6457339c2b1d94ab1c5afe7b3533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b67793f890f244c5376b42b747d9940a534a6457339c2b1d94ab1c5afe7b3533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67793f890f244c5376b42b747d9940a534a6457339c2b1d94ab1c5afe7b3533", kill_on_drop: false }`
[INFO] [stdout] b67793f890f244c5376b42b747d9940a534a6457339c2b1d94ab1c5afe7b3533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e9bf7c0a0a3052cf6bae84f4d61f33a8f14494703c6f905dd4912ed2150b557
[INFO] running `Command { std: "docker" "start" "-a" "8e9bf7c0a0a3052cf6bae84f4d61f33a8f14494703c6f905dd4912ed2150b557", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling exercise_3 v0.1.0 (/opt/rustwide/workdir/exercise_3)
[INFO] [stderr]    Compiling exercise_2 v0.1.0 (/opt/rustwide/workdir/exercise_2)
[INFO] [stderr]    Compiling exercise_1 v0.1.0 (/opt/rustwide/workdir/exercise_1)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.37s
[INFO] running `Command { std: "docker" "inspect" "8e9bf7c0a0a3052cf6bae84f4d61f33a8f14494703c6f905dd4912ed2150b557", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e9bf7c0a0a3052cf6bae84f4d61f33a8f14494703c6f905dd4912ed2150b557", kill_on_drop: false }`
[INFO] [stdout] 8e9bf7c0a0a3052cf6bae84f4d61f33a8f14494703c6f905dd4912ed2150b557
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e4bb63cb820cd5c82702f4dd92efe6021701c070ee3106c87147119421a1d99
[INFO] running `Command { std: "docker" "start" "-a" "2e4bb63cb820cd5c82702f4dd92efe6021701c070ee3106c87147119421a1d99", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling exercise_1 v0.1.0 (/opt/rustwide/workdir/exercise_1)
[INFO] [stderr]    Compiling exercise_2 v0.1.0 (/opt/rustwide/workdir/exercise_2)
[INFO] [stderr]    Compiling exercise_3 v0.1.0 (/opt/rustwide/workdir/exercise_3)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "2e4bb63cb820cd5c82702f4dd92efe6021701c070ee3106c87147119421a1d99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e4bb63cb820cd5c82702f4dd92efe6021701c070ee3106c87147119421a1d99", kill_on_drop: false }`
[INFO] [stdout] 2e4bb63cb820cd5c82702f4dd92efe6021701c070ee3106c87147119421a1d99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68c175655baa7362d7ad73f2ebbdafe4fd9f499e20965ed91d3cf05bd3c1d915
[INFO] running `Command { std: "docker" "start" "-a" "68c175655baa7362d7ad73f2ebbdafe4fd9f499e20965ed91d3cf05bd3c1d915", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exercise_1-54d6790252d924a9)
[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 (/opt/rustwide/target/debug/deps/exercise_2-16ecf31a0669f41f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::read_file_error ... ok
[INFO] [stdout] test tests::read_file_ok ... ok
[INFO] [stdout] test tests::unique_words_ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exercise_2-53c32427935496a9)
[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 (/opt/rustwide/target/debug/deps/exercise_3-6b6b594aa4a18fea)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::enroll_student_error ... ok
[INFO] [stdout] test tests::enroll_student_ok ... ok
[INFO] [stdout] test tests::same_institution_false ... ok
[INFO] [stdout] test tests::same_institution_true ... ok
[INFO] [stdout] test tests::students_ordered ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exercise_3-2fbf162a0f58f991)
[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]    Doc-tests exercise_2
[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]    Doc-tests exercise_3
[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] running `Command { std: "docker" "inspect" "68c175655baa7362d7ad73f2ebbdafe4fd9f499e20965ed91d3cf05bd3c1d915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c175655baa7362d7ad73f2ebbdafe4fd9f499e20965ed91d3cf05bd3c1d915", kill_on_drop: false }`
[INFO] [stdout] 68c175655baa7362d7ad73f2ebbdafe4fd9f499e20965ed91d3cf05bd3c1d915