[INFO] fetching crate unfold 0.2.0...
[INFO] testing unfold-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate unfold 0.2.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate unfold 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unfold 0.2.0
[INFO] finished tweaking crates.io crate unfold 0.2.0
[INFO] tweaked toml for crates.io crate unfold 0.2.0 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a001b5c6d9405219b5d321bc9bb5244606fa9f6dad3d5e6325cdddf6c044c53f
[INFO] running `Command { std: "docker" "start" "-a" "a001b5c6d9405219b5d321bc9bb5244606fa9f6dad3d5e6325cdddf6c044c53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a001b5c6d9405219b5d321bc9bb5244606fa9f6dad3d5e6325cdddf6c044c53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a001b5c6d9405219b5d321bc9bb5244606fa9f6dad3d5e6325cdddf6c044c53f", kill_on_drop: false }`
[INFO] [stdout] a001b5c6d9405219b5d321bc9bb5244606fa9f6dad3d5e6325cdddf6c044c53f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4036e7265631c8fc52ee127c2a5148e93ea21f0d6ea28885cfd29a4e19df489a
[INFO] running `Command { std: "docker" "start" "-a" "4036e7265631c8fc52ee127c2a5148e93ea21f0d6ea28885cfd29a4e19df489a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unfold v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "4036e7265631c8fc52ee127c2a5148e93ea21f0d6ea28885cfd29a4e19df489a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4036e7265631c8fc52ee127c2a5148e93ea21f0d6ea28885cfd29a4e19df489a", kill_on_drop: false }`
[INFO] [stdout] 4036e7265631c8fc52ee127c2a5148e93ea21f0d6ea28885cfd29a4e19df489a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbe97f034a1c9fb2f90d754f15a4f4355afecad8aa11b16c076adc9b8541dc09
[INFO] running `Command { std: "docker" "start" "-a" "fbe97f034a1c9fb2f90d754f15a4f4355afecad8aa11b16c076adc9b8541dc09", kill_on_drop: false }`
[INFO] [stderr]    Compiling unfold v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "fbe97f034a1c9fb2f90d754f15a4f4355afecad8aa11b16c076adc9b8541dc09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe97f034a1c9fb2f90d754f15a4f4355afecad8aa11b16c076adc9b8541dc09", kill_on_drop: false }`
[INFO] [stdout] fbe97f034a1c9fb2f90d754f15a4f4355afecad8aa11b16c076adc9b8541dc09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5da18e0d91bb46233eff744de75ec0158ce14b7a3f1d2100f2012a22128c9a5
[INFO] running `Command { std: "docker" "start" "-a" "b5da18e0d91bb46233eff744de75ec0158ce14b7a3f1d2100f2012a22128c9a5", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unfold-871e4a861a9a7bee)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_fibonacci ... ok
[INFO] [stdout] test tests::test_unfold_nth ... ok
[INFO] [stdout] test tests::test_unfold_count ... ok
[INFO] [stdout] test tests::test_unfold_vector ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unfold
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - Unfold<T,F>::new (line 125) ... ok
[INFO] [stdout] test src/lib.rs - unfold_count (line 90) ... ok
[INFO] [stdout] test src/lib.rs - unfold_nth (line 71) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - unfold_vector (line 53) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5da18e0d91bb46233eff744de75ec0158ce14b7a3f1d2100f2012a22128c9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5da18e0d91bb46233eff744de75ec0158ce14b7a3f1d2100f2012a22128c9a5", kill_on_drop: false }`
[INFO] [stdout] b5da18e0d91bb46233eff744de75ec0158ce14b7a3f1d2100f2012a22128c9a5