[INFO] fetching crate knockers 0.0.1...
[INFO] testing knockers-0.0.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate knockers 0.0.1 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate knockers 0.0.1 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 knockers 0.0.1
[INFO] finished tweaking crates.io crate knockers 0.0.1
[INFO] tweaked toml for crates.io crate knockers 0.0.1 written to /workspace/builds/worker-67/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-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 99eb7b5d84070615349e2183b124e6ac17c97386ece7b9dbbb832dbc0fa66857
[INFO] running `Command { std: "docker" "start" "-a" "99eb7b5d84070615349e2183b124e6ac17c97386ece7b9dbbb832dbc0fa66857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99eb7b5d84070615349e2183b124e6ac17c97386ece7b9dbbb832dbc0fa66857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99eb7b5d84070615349e2183b124e6ac17c97386ece7b9dbbb832dbc0fa66857", kill_on_drop: false }`
[INFO] [stdout] 99eb7b5d84070615349e2183b124e6ac17c97386ece7b9dbbb832dbc0fa66857
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 0797824ba854ed01d94c1afec08b4f827a678918e76ca465600d408089ec52a7
[INFO] running `Command { std: "docker" "start" "-a" "0797824ba854ed01d94c1afec08b4f827a678918e76ca465600d408089ec52a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling knockers v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "0797824ba854ed01d94c1afec08b4f827a678918e76ca465600d408089ec52a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0797824ba854ed01d94c1afec08b4f827a678918e76ca465600d408089ec52a7", kill_on_drop: false }`
[INFO] [stdout] 0797824ba854ed01d94c1afec08b4f827a678918e76ca465600d408089ec52a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 439c7ae9df848a9a6be3a4d68595675c3d4e804ca1abe919f2932041c729d6a7
[INFO] running `Command { std: "docker" "start" "-a" "439c7ae9df848a9a6be3a4d68595675c3d4e804ca1abe919f2932041c729d6a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling knockers v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.32s
[INFO] running `Command { std: "docker" "inspect" "439c7ae9df848a9a6be3a4d68595675c3d4e804ca1abe919f2932041c729d6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "439c7ae9df848a9a6be3a4d68595675c3d4e804ca1abe919f2932041c729d6a7", kill_on_drop: false }`
[INFO] [stdout] 439c7ae9df848a9a6be3a4d68595675c3d4e804ca1abe919f2932041c729d6a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 6c14041a4b61c11cb35f22335806ed3f4a40af17b7dd4fea8505ff08e79e21c3
[INFO] running `Command { std: "docker" "start" "-a" "6c14041a4b61c11cb35f22335806ed3f4a40af17b7dd4fea8505ff08e79e21c3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/knockers-559539c5bcf84849)
[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" "6c14041a4b61c11cb35f22335806ed3f4a40af17b7dd4fea8505ff08e79e21c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c14041a4b61c11cb35f22335806ed3f4a40af17b7dd4fea8505ff08e79e21c3", kill_on_drop: false }`
[INFO] [stdout] 6c14041a4b61c11cb35f22335806ed3f4a40af17b7dd4fea8505ff08e79e21c3