[INFO] fetching crate syn-ext 0.3.0...
[INFO] testing syn-ext-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate syn-ext 0.3.0 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate syn-ext 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 syn-ext 0.3.0
[INFO] finished tweaking crates.io crate syn-ext 0.3.0
[INFO] tweaked toml for crates.io crate syn-ext 0.3.0 written to /workspace/builds/worker-119/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] 21b49abd795277dc97197bd29972768f4d00d604fbde569711492057b14b1cd8
[INFO] running `Command { std: "docker" "start" "-a" "21b49abd795277dc97197bd29972768f4d00d604fbde569711492057b14b1cd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21b49abd795277dc97197bd29972768f4d00d604fbde569711492057b14b1cd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b49abd795277dc97197bd29972768f4d00d604fbde569711492057b14b1cd8", kill_on_drop: false }`
[INFO] [stdout] 21b49abd795277dc97197bd29972768f4d00d604fbde569711492057b14b1cd8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] 5c5ca83131f38b42feda4c18331750d86adeaa5278de09471674f9ef3122bf4a
[INFO] running `Command { std: "docker" "start" "-a" "5c5ca83131f38b42feda4c18331750d86adeaa5278de09471674f9ef3122bf4a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `Command { std: "docker" "inspect" "5c5ca83131f38b42feda4c18331750d86adeaa5278de09471674f9ef3122bf4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c5ca83131f38b42feda4c18331750d86adeaa5278de09471674f9ef3122bf4a", kill_on_drop: false }`
[INFO] [stdout] 5c5ca83131f38b42feda4c18331750d86adeaa5278de09471674f9ef3122bf4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] facf604229ebc35f6ecbf1c7bfd263e4ac7041d178218b6e0f4bbdf806608feb
[INFO] running `Command { std: "docker" "start" "-a" "facf604229ebc35f6ecbf1c7bfd263e4ac7041d178218b6e0f4bbdf806608feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn-ext v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "facf604229ebc35f6ecbf1c7bfd263e4ac7041d178218b6e0f4bbdf806608feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "facf604229ebc35f6ecbf1c7bfd263e4ac7041d178218b6e0f4bbdf806608feb", kill_on_drop: false }`
[INFO] [stdout] facf604229ebc35f6ecbf1c7bfd263e4ac7041d178218b6e0f4bbdf806608feb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] 2f0920617670c71c8b6d850b4ea7a2190cab7ef15a524041b39e295a52255dc8
[INFO] running `Command { std: "docker" "start" "-a" "2f0920617670c71c8b6d850b4ea7a2190cab7ef15a524041b39e295a52255dc8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syn_ext-146d5bb2aeff7f0b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test attribute::test::test_promoted_list ... ok
[INFO] [stdout] test punctuated::test::test_remove ... ok
[INFO] [stdout] test attribute::test::test_try_meta_mut ... ok
[INFO] [stdout] test attribute::test::run_test_meta_round_trip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syn-ext
[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" "2f0920617670c71c8b6d850b4ea7a2190cab7ef15a524041b39e295a52255dc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0920617670c71c8b6d850b4ea7a2190cab7ef15a524041b39e295a52255dc8", kill_on_drop: false }`
[INFO] [stdout] 2f0920617670c71c8b6d850b4ea7a2190cab7ef15a524041b39e295a52255dc8