[INFO] crate challenge-prompt 0.2.0 is already in cache
[INFO] testing challenge-prompt-0.2.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate challenge-prompt 0.2.0 into work/builds/worker-6/source
[INFO] validating manifest of crates.io crate challenge-prompt 0.2.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate challenge-prompt 0.2.0
[INFO] finished tweaking crates.io crate challenge-prompt 0.2.0
[INFO] tweaked toml for crates.io crate challenge-prompt 0.2.0 written to work/builds/worker-6/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 26472631b54dc4ccfbaab77df6b8985603f16f23d2c03369112201238c1d792d
[INFO] running `"docker" "start" "-a" "26472631b54dc4ccfbaab77df6b8985603f16f23d2c03369112201238c1d792d"`
[INFO] [stderr]    Compiling challenge-prompt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/lib.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 40 | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 55 |         use rand;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "26472631b54dc4ccfbaab77df6b8985603f16f23d2c03369112201238c1d792d"`
[INFO] running `"docker" "rm" "-f" "26472631b54dc4ccfbaab77df6b8985603f16f23d2c03369112201238c1d792d"`
[INFO] [stdout] 26472631b54dc4ccfbaab77df6b8985603f16f23d2c03369112201238c1d792d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] c67a78fe0056953864ff3c1f1091a79abe824070c3e8266427239f4b8c7f50bf
[INFO] running `"docker" "start" "-a" "c67a78fe0056953864ff3c1f1091a79abe824070c3e8266427239f4b8c7f50bf"`
[INFO] [stderr]    Compiling predicates-core v0.9.0
[INFO] [stderr]    Compiling normalize-line-endings v0.2.2
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling escargot v0.3.1
[INFO] [stderr]    Compiling predicates-tree v0.9.0
[INFO] [stderr]    Compiling predicates v0.9.1
[INFO] [stderr]    Compiling assert_cmd v0.9.1
[INFO] [stderr]    Compiling challenge-prompt v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/lib.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 40 | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 55 |         use rand;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `"docker" "inspect" "c67a78fe0056953864ff3c1f1091a79abe824070c3e8266427239f4b8c7f50bf"`
[INFO] running `"docker" "rm" "-f" "c67a78fe0056953864ff3c1f1091a79abe824070c3e8266427239f4b8c7f50bf"`
[INFO] [stdout] c67a78fe0056953864ff3c1f1091a79abe824070c3e8266427239f4b8c7f50bf
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] c7303b49fe096e2c5d069e703988c48c4b047264b126cc0af4e078d97f07d5af
[INFO] running `"docker" "start" "-a" "c7303b49fe096e2c5d069e703988c48c4b047264b126cc0af4e078d97f07d5af"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/challenge_prompt-9a31e4e5d4fba5c1
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::phrase_challenge ... ok
[INFO] [stdout] test tests::arithmetic_challenge ... ok
[INFO] [stdout] test tests::yes_no_challenge ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/challenge_prompt-ec5945f1298a9668
[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]    Doc-tests challenge-prompt
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs -  (line 19) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c7303b49fe096e2c5d069e703988c48c4b047264b126cc0af4e078d97f07d5af"`
[INFO] running `"docker" "rm" "-f" "c7303b49fe096e2c5d069e703988c48c4b047264b126cc0af4e078d97f07d5af"`
[INFO] [stdout] c7303b49fe096e2c5d069e703988c48c4b047264b126cc0af4e078d97f07d5af