[INFO] fetching crate polar-c-api 0.1.0...
[INFO] testing polar-c-api-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate polar-c-api 0.1.0 into /workspace/builds/worker-39/source
[INFO] validating manifest of crates.io crate polar-c-api 0.1.0 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 polar-c-api 0.1.0
[INFO] finished tweaking crates.io crate polar-c-api 0.1.0
[INFO] tweaked toml for crates.io crate polar-c-api 0.1.0 written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate crates.io crate polar-c-api 0.1.0 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 2c558e3f5acda5bb97207cb42861d3a9faaa5a45c8f888ac2edcd70f05e299d1
[INFO] running `Command { std: "docker" "start" "-a" "2c558e3f5acda5bb97207cb42861d3a9faaa5a45c8f888ac2edcd70f05e299d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c558e3f5acda5bb97207cb42861d3a9faaa5a45c8f888ac2edcd70f05e299d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c558e3f5acda5bb97207cb42861d3a9faaa5a45c8f888ac2edcd70f05e299d1", kill_on_drop: false }`
[INFO] [stdout] 2c558e3f5acda5bb97207cb42861d3a9faaa5a45c8f888ac2edcd70f05e299d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] e21e9817d4bbe004f36e35998bae5131d50fa30f9ac8d0f11c577cd4b6ebbeab
[INFO] running `Command { std: "docker" "start" "-a" "e21e9817d4bbe004f36e35998bae5131d50fa30f9ac8d0f11c577cd4b6ebbeab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling polar-c-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "e21e9817d4bbe004f36e35998bae5131d50fa30f9ac8d0f11c577cd4b6ebbeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e21e9817d4bbe004f36e35998bae5131d50fa30f9ac8d0f11c577cd4b6ebbeab", kill_on_drop: false }`
[INFO] [stdout] e21e9817d4bbe004f36e35998bae5131d50fa30f9ac8d0f11c577cd4b6ebbeab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 36017aa44c344f1272868b25993bd1a15bf1fa2bac75c3a4c25d3534346b0199
[INFO] running `Command { std: "docker" "start" "-a" "36017aa44c344f1272868b25993bd1a15bf1fa2bac75c3a4c25d3534346b0199", kill_on_drop: false }`
[INFO] [stderr]    Compiling polar-c-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "36017aa44c344f1272868b25993bd1a15bf1fa2bac75c3a4c25d3534346b0199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36017aa44c344f1272868b25993bd1a15bf1fa2bac75c3a4c25d3534346b0199", kill_on_drop: false }`
[INFO] [stdout] 36017aa44c344f1272868b25993bd1a15bf1fa2bac75c3a4c25d3534346b0199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 036b4d2e82b41c5057cd00501702ab59eb4da5d39edce19c6df66f93606189d4
[INFO] running `Command { std: "docker" "start" "-a" "036b4d2e82b41c5057cd00501702ab59eb4da5d39edce19c6df66f93606189d4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polar_c_api-c04a502379cd686b)
[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" "036b4d2e82b41c5057cd00501702ab59eb4da5d39edce19c6df66f93606189d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "036b4d2e82b41c5057cd00501702ab59eb4da5d39edce19c6df66f93606189d4", kill_on_drop: false }`
[INFO] [stdout] 036b4d2e82b41c5057cd00501702ab59eb4da5d39edce19c6df66f93606189d4