[INFO] fetching crate exercism_prep_tests 0.6.1...
[INFO] testing exercism_prep_tests-0.6.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate exercism_prep_tests 0.6.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate exercism_prep_tests 0.6.1
[INFO] finished tweaking crates.io crate exercism_prep_tests 0.6.1
[INFO] tweaked toml for crates.io crate exercism_prep_tests 0.6.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate exercism_prep_tests 0.6.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate exercism_prep_tests 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dunce v1.0.3
[INFO] [stderr]   Downloaded clioptions v0.1.0
[INFO] [stderr]   Downloaded envmnt v0.10.4
[INFO] [stderr]   Downloaded fsio v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fb6d5e575d8343b0872c76f4302d793128f0bf722dfed2453778393279b9a41
[INFO] running `Command { std: "docker" "start" "-a" "6fb6d5e575d8343b0872c76f4302d793128f0bf722dfed2453778393279b9a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fb6d5e575d8343b0872c76f4302d793128f0bf722dfed2453778393279b9a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb6d5e575d8343b0872c76f4302d793128f0bf722dfed2453778393279b9a41", kill_on_drop: false }`
[INFO] [stdout] 6fb6d5e575d8343b0872c76f4302d793128f0bf722dfed2453778393279b9a41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eccb0beccbd97d5810df338de1d932081f77c3733d46e563c8555785dbb52a24
[INFO] running `Command { std: "docker" "start" "-a" "eccb0beccbd97d5810df338de1d932081f77c3733d46e563c8555785dbb52a24", kill_on_drop: false }`
[INFO] [stderr]    Compiling fsio v0.4.0
[INFO] [stderr]    Compiling clioptions v0.1.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling envmnt v0.10.4
[INFO] [stderr]    Compiling exercism_prep_tests v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "eccb0beccbd97d5810df338de1d932081f77c3733d46e563c8555785dbb52a24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eccb0beccbd97d5810df338de1d932081f77c3733d46e563c8555785dbb52a24", kill_on_drop: false }`
[INFO] [stdout] eccb0beccbd97d5810df338de1d932081f77c3733d46e563c8555785dbb52a24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c951c1cf86cfc7a3b175b9900da8521aeee5f5d008831e7f57a31eb50b5ff84
[INFO] running `Command { std: "docker" "start" "-a" "9c951c1cf86cfc7a3b175b9900da8521aeee5f5d008831e7f57a31eb50b5ff84", kill_on_drop: false }`
[INFO] [stderr]    Compiling exercism_prep_tests v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "9c951c1cf86cfc7a3b175b9900da8521aeee5f5d008831e7f57a31eb50b5ff84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c951c1cf86cfc7a3b175b9900da8521aeee5f5d008831e7f57a31eb50b5ff84", kill_on_drop: false }`
[INFO] [stdout] 9c951c1cf86cfc7a3b175b9900da8521aeee5f5d008831e7f57a31eb50b5ff84
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c8c2ac1f918fca2075396b29c12d5ac39a6ea2e2575e784f596145b31b754cf0
[INFO] running `Command { std: "docker" "start" "-a" "c8c2ac1f918fca2075396b29c12d5ac39a6ea2e2575e784f596145b31b754cf0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/exercism_prep_tests-86d007107934a348)
[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" "c8c2ac1f918fca2075396b29c12d5ac39a6ea2e2575e784f596145b31b754cf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8c2ac1f918fca2075396b29c12d5ac39a6ea2e2575e784f596145b31b754cf0", kill_on_drop: false }`
[INFO] [stdout] c8c2ac1f918fca2075396b29c12d5ac39a6ea2e2575e784f596145b31b754cf0