[INFO] fetching crate refinement 0.3.0...
[INFO] testing refinement-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate refinement 0.3.0 into /workspace/builds/worker-66/source
[INFO] validating manifest of crates.io crate refinement 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate refinement 0.3.0
[INFO] finished tweaking crates.io crate refinement 0.3.0
[INFO] tweaked toml for crates.io crate refinement 0.3.0 written to /workspace/builds/worker-66/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e1646044aefecd670a8b17d1e3cc9ec1eb7307b6f13dd93c240ca1db6b53209
[INFO] running `Command { std: "docker" "start" "-a" "5e1646044aefecd670a8b17d1e3cc9ec1eb7307b6f13dd93c240ca1db6b53209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e1646044aefecd670a8b17d1e3cc9ec1eb7307b6f13dd93c240ca1db6b53209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1646044aefecd670a8b17d1e3cc9ec1eb7307b6f13dd93c240ca1db6b53209", kill_on_drop: false }`
[INFO] [stdout] 5e1646044aefecd670a8b17d1e3cc9ec1eb7307b6f13dd93c240ca1db6b53209
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5e4b7b1f5741d9cef0a54e2a5265037cd3a16445f6116a80e9ae03abdac65f6
[INFO] running `Command { std: "docker" "start" "-a" "f5e4b7b1f5741d9cef0a54e2a5265037cd3a16445f6116a80e9ae03abdac65f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling refinement v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "f5e4b7b1f5741d9cef0a54e2a5265037cd3a16445f6116a80e9ae03abdac65f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5e4b7b1f5741d9cef0a54e2a5265037cd3a16445f6116a80e9ae03abdac65f6", kill_on_drop: false }`
[INFO] [stdout] f5e4b7b1f5741d9cef0a54e2a5265037cd3a16445f6116a80e9ae03abdac65f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14f478dbc1740a1ea8b4c78e105a1191d6f1fadee76bf39d47ad4a3a77fd3e50
[INFO] running `Command { std: "docker" "start" "-a" "14f478dbc1740a1ea8b4c78e105a1191d6f1fadee76bf39d47ad4a3a77fd3e50", kill_on_drop: false }`
[INFO] [stderr]    Compiling refinement v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "14f478dbc1740a1ea8b4c78e105a1191d6f1fadee76bf39d47ad4a3a77fd3e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f478dbc1740a1ea8b4c78e105a1191d6f1fadee76bf39d47ad4a3a77fd3e50", kill_on_drop: false }`
[INFO] [stdout] 14f478dbc1740a1ea8b4c78e105a1191d6f1fadee76bf39d47ad4a3a77fd3e50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-66/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0fc426d598ba77efd34d97ce8294be0d9b12be7dd1ffc67d62b6a7c237b95bb1
[INFO] running `Command { std: "docker" "start" "-a" "0fc426d598ba77efd34d97ce8294be0d9b12be7dd1ffc67d62b6a7c237b95bb1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/refinement-4d31f4cd4b48a26e)
[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]      Running tests/less_than_ten.rs (/opt/rustwide/target/debug/deps/less_than_ten-d8ad00f4d1a451df)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test add ... ok
[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] [stderr]      Running tests/non_empty_string.rs (/opt/rustwide/target/debug/deps/non_empty_string-22b7f2ff4de97794)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test clone_equality ... ok
[INFO] [stdout] test create_bad_value ... ok
[INFO] [stdout] test create_good_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests refinement
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/lib.rs - Refinement<T, P>::as_inner (line 217) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - Predicate (line 64) ... ok
[INFO] [stdout] test src/lib.rs - Refinement<T, P>::new (line 124) ... ok
[INFO] [stdout] test src/lib.rs - Refinement<T, P>::to_inner (line 186) ... ok
[INFO] [stdout] test src/lib.rs - Refinement (line 92) ... ok
[INFO] [stdout] test src/lib.rs - Refinement<T, P>::into_inner (line 155) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0fc426d598ba77efd34d97ce8294be0d9b12be7dd1ffc67d62b6a7c237b95bb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc426d598ba77efd34d97ce8294be0d9b12be7dd1ffc67d62b6a7c237b95bb1", kill_on_drop: false }`
[INFO] [stdout] 0fc426d598ba77efd34d97ce8294be0d9b12be7dd1ffc67d62b6a7c237b95bb1