[INFO] fetching crate swap 0.1.0...
[INFO] testing swap-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate swap 0.1.0 into /workspace/builds/worker-114/source
[INFO] validating manifest of crates.io crate swap 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swap 0.1.0
[INFO] finished tweaking crates.io crate swap 0.1.0
[INFO] tweaked toml for crates.io crate swap 0.1.0 written to /workspace/builds/worker-114/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68d8f75cb140eb4a6aa79effe168a9e89f21e2a1eb3e140af2eb658c5fa70d1f
[INFO] running `Command { std: "docker" "start" "-a" "68d8f75cb140eb4a6aa79effe168a9e89f21e2a1eb3e140af2eb658c5fa70d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68d8f75cb140eb4a6aa79effe168a9e89f21e2a1eb3e140af2eb658c5fa70d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68d8f75cb140eb4a6aa79effe168a9e89f21e2a1eb3e140af2eb658c5fa70d1f", kill_on_drop: false }`
[INFO] [stdout] 68d8f75cb140eb4a6aa79effe168a9e89f21e2a1eb3e140af2eb658c5fa70d1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f37fa299f016c1f1cafeb571f214021bb1a0d99463c8823197edc2b7634132a9
[INFO] running `Command { std: "docker" "start" "-a" "f37fa299f016c1f1cafeb571f214021bb1a0d99463c8823197edc2b7634132a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling swap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.46s
[INFO] running `Command { std: "docker" "inspect" "f37fa299f016c1f1cafeb571f214021bb1a0d99463c8823197edc2b7634132a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f37fa299f016c1f1cafeb571f214021bb1a0d99463c8823197edc2b7634132a9", kill_on_drop: false }`
[INFO] [stdout] f37fa299f016c1f1cafeb571f214021bb1a0d99463c8823197edc2b7634132a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d40bdf807bcfdfe4d09f7a7649cbbdff2ebbeb1d9a234507cf9c93cd1992a0e2
[INFO] running `Command { std: "docker" "start" "-a" "d40bdf807bcfdfe4d09f7a7649cbbdff2ebbeb1d9a234507cf9c93cd1992a0e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling swap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "d40bdf807bcfdfe4d09f7a7649cbbdff2ebbeb1d9a234507cf9c93cd1992a0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d40bdf807bcfdfe4d09f7a7649cbbdff2ebbeb1d9a234507cf9c93cd1992a0e2", kill_on_drop: false }`
[INFO] [stdout] d40bdf807bcfdfe4d09f7a7649cbbdff2ebbeb1d9a234507cf9c93cd1992a0e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6461c39d2a705d58d28965701cb0f76c1c113512b2318dc56aa4e1c92d439cfe
[INFO] running `Command { std: "docker" "start" "-a" "6461c39d2a705d58d28965701cb0f76c1c113512b2318dc56aa4e1c92d439cfe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/swap-65c0a7ef9da907a8)
[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" "6461c39d2a705d58d28965701cb0f76c1c113512b2318dc56aa4e1c92d439cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6461c39d2a705d58d28965701cb0f76c1c113512b2318dc56aa4e1c92d439cfe", kill_on_drop: false }`
[INFO] [stdout] 6461c39d2a705d58d28965701cb0f76c1c113512b2318dc56aa4e1c92d439cfe