[INFO] fetching crate property 0.4.0-alpha.0...
[INFO] testing property-0.4.0-alpha.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate property 0.4.0-alpha.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate property 0.4.0-alpha.0 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 property 0.4.0-alpha.0
[INFO] finished tweaking crates.io crate property 0.4.0-alpha.0
[INFO] tweaked toml for crates.io crate property 0.4.0-alpha.0 written to /workspace/builds/worker-6/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 4ef3ec5011a62940689447a43a6fd9c334b18f2c2523dba588d573b068a9e44a
[INFO] running `Command { std: "docker" "start" "-a" "4ef3ec5011a62940689447a43a6fd9c334b18f2c2523dba588d573b068a9e44a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef3ec5011a62940689447a43a6fd9c334b18f2c2523dba588d573b068a9e44a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef3ec5011a62940689447a43a6fd9c334b18f2c2523dba588d573b068a9e44a", kill_on_drop: false }`
[INFO] [stdout] 4ef3ec5011a62940689447a43a6fd9c334b18f2c2523dba588d573b068a9e44a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 71039c1f09e6c3aa3ed52270c457ca72a0488e49f6c7a7959d42fba7dd841cb9
[INFO] running `Command { std: "docker" "start" "-a" "71039c1f09e6c3aa3ed52270c457ca72a0488e49f6c7a7959d42fba7dd841cb9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling property v0.4.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.27s
[INFO] running `Command { std: "docker" "inspect" "71039c1f09e6c3aa3ed52270c457ca72a0488e49f6c7a7959d42fba7dd841cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71039c1f09e6c3aa3ed52270c457ca72a0488e49f6c7a7959d42fba7dd841cb9", kill_on_drop: false }`
[INFO] [stdout] 71039c1f09e6c3aa3ed52270c457ca72a0488e49f6c7a7959d42fba7dd841cb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 5097502457eb3b78c381475ae2fde055d6934cb0e145a61298b920426880c852
[INFO] running `Command { std: "docker" "start" "-a" "5097502457eb3b78c381475ae2fde055d6934cb0e145a61298b920426880c852", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling property v0.4.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.80s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/property-020119445160e958)
[INFO] running `Command { std: "docker" "inspect" "5097502457eb3b78c381475ae2fde055d6934cb0e145a61298b920426880c852", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5097502457eb3b78c381475ae2fde055d6934cb0e145a61298b920426880c852", kill_on_drop: false }`
[INFO] [stdout] 5097502457eb3b78c381475ae2fde055d6934cb0e145a61298b920426880c852
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] a29c8e3cdd55335ad0f27b2afb63becf84c1710a0ef587592eba037a654ff474
[INFO] running `Command { std: "docker" "start" "-a" "a29c8e3cdd55335ad0f27b2afb63becf84c1710a0ef587592eba037a654ff474", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/property-020119445160e958)
[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] [stderr]    Doc-tests property
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - property_default (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a29c8e3cdd55335ad0f27b2afb63becf84c1710a0ef587592eba037a654ff474", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a29c8e3cdd55335ad0f27b2afb63becf84c1710a0ef587592eba037a654ff474", kill_on_drop: false }`
[INFO] [stdout] a29c8e3cdd55335ad0f27b2afb63becf84c1710a0ef587592eba037a654ff474