[INFO] fetching crate synthesis 0.0.0...
[INFO] testing synthesis-0.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate synthesis 0.0.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate synthesis 0.0.0 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] removed /workspace/builds/worker-17/source/.cargo/config.toml
[INFO] started tweaking crates.io crate synthesis 0.0.0
[INFO] finished tweaking crates.io crate synthesis 0.0.0
[INFO] tweaked toml for crates.io crate synthesis 0.0.0 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate crates.io crate synthesis 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 1ce3ce45d6295306eb8d50b6746326273b49c0ad1b55b77c3d6b2ace616d9f0e
[INFO] running `Command { std: "docker" "start" "-a" "1ce3ce45d6295306eb8d50b6746326273b49c0ad1b55b77c3d6b2ace616d9f0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ce3ce45d6295306eb8d50b6746326273b49c0ad1b55b77c3d6b2ace616d9f0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce3ce45d6295306eb8d50b6746326273b49c0ad1b55b77c3d6b2ace616d9f0e", kill_on_drop: false }`
[INFO] [stdout] 1ce3ce45d6295306eb8d50b6746326273b49c0ad1b55b77c3d6b2ace616d9f0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 95c28c44be730e9fd4983d865c5a2e4544f7ef63351971fdf454082e86c8566f
[INFO] running `Command { std: "docker" "start" "-a" "95c28c44be730e9fd4983d865c5a2e4544f7ef63351971fdf454082e86c8566f", kill_on_drop: false }`
[INFO] [stderr]    Compiling synthesis v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "95c28c44be730e9fd4983d865c5a2e4544f7ef63351971fdf454082e86c8566f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c28c44be730e9fd4983d865c5a2e4544f7ef63351971fdf454082e86c8566f", kill_on_drop: false }`
[INFO] [stdout] 95c28c44be730e9fd4983d865c5a2e4544f7ef63351971fdf454082e86c8566f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 63a700ae426c8cc31ce7d26f7ecef6a856929f7c1e512eac455d967fba6e50e7
[INFO] running `Command { std: "docker" "start" "-a" "63a700ae426c8cc31ce7d26f7ecef6a856929f7c1e512eac455d967fba6e50e7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling synthesis v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/synthesis-064857df4324bbe6)
[INFO] running `Command { std: "docker" "inspect" "63a700ae426c8cc31ce7d26f7ecef6a856929f7c1e512eac455d967fba6e50e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a700ae426c8cc31ce7d26f7ecef6a856929f7c1e512eac455d967fba6e50e7", kill_on_drop: false }`
[INFO] [stdout] 63a700ae426c8cc31ce7d26f7ecef6a856929f7c1e512eac455d967fba6e50e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 7eea8f3bd0bfbbcbe808a6b4caf6de1c803ab212964e0f33a72b18b00d449d9c
[INFO] running `Command { std: "docker" "start" "-a" "7eea8f3bd0bfbbcbe808a6b4caf6de1c803ab212964e0f33a72b18b00d449d9c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/synthesis-064857df4324bbe6)
[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" "7eea8f3bd0bfbbcbe808a6b4caf6de1c803ab212964e0f33a72b18b00d449d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eea8f3bd0bfbbcbe808a6b4caf6de1c803ab212964e0f33a72b18b00d449d9c", kill_on_drop: false }`
[INFO] [stdout] 7eea8f3bd0bfbbcbe808a6b4caf6de1c803ab212964e0f33a72b18b00d449d9c