[INFO] fetching crate learn 0.1.1...
[INFO] testing learn-0.1.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate learn 0.1.1 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate learn 0.1.1 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 learn 0.1.1
[INFO] finished tweaking crates.io crate learn 0.1.1
[INFO] tweaked toml for crates.io crate learn 0.1.1 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 0943639b67a93994e411a587982c82800e1dbce65e8d09175ef4cabbaccb7736
[INFO] running `Command { std: "docker" "start" "-a" "0943639b67a93994e411a587982c82800e1dbce65e8d09175ef4cabbaccb7736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0943639b67a93994e411a587982c82800e1dbce65e8d09175ef4cabbaccb7736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0943639b67a93994e411a587982c82800e1dbce65e8d09175ef4cabbaccb7736", kill_on_drop: false }`
[INFO] [stdout] 0943639b67a93994e411a587982c82800e1dbce65e8d09175ef4cabbaccb7736
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 0c77ac72fe47745c6c6c49b41c9c9fa8242a94bea382ee42ee6a3ccc0cfc6fca
[INFO] running `Command { std: "docker" "start" "-a" "0c77ac72fe47745c6c6c49b41c9c9fa8242a94bea382ee42ee6a3ccc0cfc6fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "0c77ac72fe47745c6c6c49b41c9c9fa8242a94bea382ee42ee6a3ccc0cfc6fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c77ac72fe47745c6c6c49b41c9c9fa8242a94bea382ee42ee6a3ccc0cfc6fca", kill_on_drop: false }`
[INFO] [stdout] 0c77ac72fe47745c6c6c49b41c9c9fa8242a94bea382ee42ee6a3ccc0cfc6fca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] a1b34dd24ce3e97a5ceb793a370c8d37a00c57dc201a811682690501fed09043
[INFO] running `Command { std: "docker" "start" "-a" "a1b34dd24ce3e97a5ceb793a370c8d37a00c57dc201a811682690501fed09043", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/learn-aae8dd7095331df1)
[INFO] running `Command { std: "docker" "inspect" "a1b34dd24ce3e97a5ceb793a370c8d37a00c57dc201a811682690501fed09043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1b34dd24ce3e97a5ceb793a370c8d37a00c57dc201a811682690501fed09043", kill_on_drop: false }`
[INFO] [stdout] a1b34dd24ce3e97a5ceb793a370c8d37a00c57dc201a811682690501fed09043
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] c36a8fc8d4224d70b99c7f82547fa5ebdfb49b348579c4f7948eef7693c2c4f6
[INFO] running `Command { std: "docker" "start" "-a" "c36a8fc8d4224d70b99c7f82547fa5ebdfb49b348579c4f7948eef7693c2c4f6", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/learn-aae8dd7095331df1)
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests learn
[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] [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" "c36a8fc8d4224d70b99c7f82547fa5ebdfb49b348579c4f7948eef7693c2c4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c36a8fc8d4224d70b99c7f82547fa5ebdfb49b348579c4f7948eef7693c2c4f6", kill_on_drop: false }`
[INFO] [stdout] c36a8fc8d4224d70b99c7f82547fa5ebdfb49b348579c4f7948eef7693c2c4f6