[INFO] fetching crate challenge-prompt 0.3.0...
[INFO] testing challenge-prompt-0.3.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate challenge-prompt 0.3.0 into /workspace/builds/worker-40/source
[INFO] validating manifest of crates.io crate challenge-prompt 0.3.0 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 crates.io crate challenge-prompt 0.3.0
[INFO] finished tweaking crates.io crate challenge-prompt 0.3.0
[INFO] tweaked toml for crates.io crate challenge-prompt 0.3.0 written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate crates.io crate challenge-prompt 0.3.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] e6f0e9e09e42059b152a25b27c25bec949c67e05bde519d29ff51a1111a5d1c2
[INFO] running `Command { std: "docker" "start" "-a" "e6f0e9e09e42059b152a25b27c25bec949c67e05bde519d29ff51a1111a5d1c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6f0e9e09e42059b152a25b27c25bec949c67e05bde519d29ff51a1111a5d1c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f0e9e09e42059b152a25b27c25bec949c67e05bde519d29ff51a1111a5d1c2", kill_on_drop: false }`
[INFO] [stdout] e6f0e9e09e42059b152a25b27c25bec949c67e05bde519d29ff51a1111a5d1c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 4cb1fd5345f31b42ea56c1c337eaf8fc14183273b438d6432dfe512b07873a71
[INFO] running `Command { std: "docker" "start" "-a" "4cb1fd5345f31b42ea56c1c337eaf8fc14183273b438d6432dfe512b07873a71", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling argh_shared v0.1.7
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling argh_derive v0.1.7
[INFO] [stderr]    Compiling argh v0.1.7
[INFO] [stderr]    Compiling challenge-prompt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `Command { std: "docker" "inspect" "4cb1fd5345f31b42ea56c1c337eaf8fc14183273b438d6432dfe512b07873a71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cb1fd5345f31b42ea56c1c337eaf8fc14183273b438d6432dfe512b07873a71", kill_on_drop: false }`
[INFO] [stdout] 4cb1fd5345f31b42ea56c1c337eaf8fc14183273b438d6432dfe512b07873a71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 5aea852da68a5390d8e0630cee665edd532447462eca684b49d3aef377a9d901
[INFO] running `Command { std: "docker" "start" "-a" "5aea852da68a5390d8e0630cee665edd532447462eca684b49d3aef377a9d901", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling termtree v0.2.3
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling predicates v2.1.0
[INFO] [stderr]    Compiling assert_cmd v2.0.2
[INFO] [stderr]    Compiling challenge-prompt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.08s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/challenge_prompt-43c0d43d1064473a)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/challenge_prompt-d914f6f32446ff4c)
[INFO] [stderr]   Executable tests/cli_tests.rs (/opt/rustwide/target/debug/deps/cli_tests-3d3a6feb5d6342ad)
[INFO] running `Command { std: "docker" "inspect" "5aea852da68a5390d8e0630cee665edd532447462eca684b49d3aef377a9d901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aea852da68a5390d8e0630cee665edd532447462eca684b49d3aef377a9d901", kill_on_drop: false }`
[INFO] [stdout] 5aea852da68a5390d8e0630cee665edd532447462eca684b49d3aef377a9d901
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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] 199696fb6e0ed141716b9def2e022aa11743dfcbac95a14d3b2d51a89fdbf844
[INFO] running `Command { std: "docker" "start" "-a" "199696fb6e0ed141716b9def2e022aa11743dfcbac95a14d3b2d51a89fdbf844", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.24s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/challenge_prompt-43c0d43d1064473a)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/challenge_prompt-d914f6f32446ff4c)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/cli_tests.rs (/opt/rustwide/target/debug/deps/cli_tests-3d3a6feb5d6342ad)
[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] [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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test retry_challenge ... ok
[INFO] [stdout] test arithmetic_challenge ... ok
[INFO] [stdout] test phrase_challenge ... ok
[INFO] [stdout] test yes_no_challenge ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests challenge-prompt
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 19) ... ignored
[INFO] [stdout] test src/lib.rs - (line 32) - compile ... ok
[INFO] [stdout] test src/rng.rs - rng::Rng::u32 (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "199696fb6e0ed141716b9def2e022aa11743dfcbac95a14d3b2d51a89fdbf844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "199696fb6e0ed141716b9def2e022aa11743dfcbac95a14d3b2d51a89fdbf844", kill_on_drop: false }`
[INFO] [stdout] 199696fb6e0ed141716b9def2e022aa11743dfcbac95a14d3b2d51a89fdbf844