[INFO] fetching crate amplify_syn 1.1.6...
[INFO] testing amplify_syn-1.1.6 against 1.55.0 for beta-1.56-1
[INFO] extracting crate amplify_syn 1.1.6 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate amplify_syn 1.1.6 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 amplify_syn 1.1.6
[INFO] finished tweaking crates.io crate amplify_syn 1.1.6
[INFO] tweaked toml for crates.io crate amplify_syn 1.1.6 written to /workspace/builds/worker-67/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-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 598d2a098d5192c0190afc863ae24987f2a40288923ebeb8b7a6ab06d6b253d8
[INFO] running `Command { std: "docker" "start" "-a" "598d2a098d5192c0190afc863ae24987f2a40288923ebeb8b7a6ab06d6b253d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "598d2a098d5192c0190afc863ae24987f2a40288923ebeb8b7a6ab06d6b253d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598d2a098d5192c0190afc863ae24987f2a40288923ebeb8b7a6ab06d6b253d8", kill_on_drop: false }`
[INFO] [stdout] 598d2a098d5192c0190afc863ae24987f2a40288923ebeb8b7a6ab06d6b253d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 2784393330aa1922bfd6bfac4d5cbfbc2b863ff7c0f3d428bd9bbfaa3c9e9866
[INFO] running `Command { std: "docker" "start" "-a" "2784393330aa1922bfd6bfac4d5cbfbc2b863ff7c0f3d428bd9bbfaa3c9e9866", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling amplify_syn v1.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.22s
[INFO] running `Command { std: "docker" "inspect" "2784393330aa1922bfd6bfac4d5cbfbc2b863ff7c0f3d428bd9bbfaa3c9e9866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2784393330aa1922bfd6bfac4d5cbfbc2b863ff7c0f3d428bd9bbfaa3c9e9866", kill_on_drop: false }`
[INFO] [stdout] 2784393330aa1922bfd6bfac4d5cbfbc2b863ff7c0f3d428bd9bbfaa3c9e9866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 348a17c3c92fcb5c8ad22d7e7fb91ca40b9e37311427f7f4b5e0f3018891575d
[INFO] running `Command { std: "docker" "start" "-a" "348a17c3c92fcb5c8ad22d7e7fb91ca40b9e37311427f7f4b5e0f3018891575d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling amplify_syn v1.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.48s
[INFO] running `Command { std: "docker" "inspect" "348a17c3c92fcb5c8ad22d7e7fb91ca40b9e37311427f7f4b5e0f3018891575d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "348a17c3c92fcb5c8ad22d7e7fb91ca40b9e37311427f7f4b5e0f3018891575d", kill_on_drop: false }`
[INFO] [stdout] 348a17c3c92fcb5c8ad22d7e7fb91ca40b9e37311427f7f4b5e0f3018891575d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 190fc133743fcb607a99f7baad5af39ba5904833e3be58ab8b5cf129c5eba525
[INFO] running `Command { std: "docker" "start" "-a" "190fc133743fcb607a99f7baad5af39ba5904833e3be58ab8b5cf129c5eba525", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/amplify_syn-66ff85bc8d1b9d74)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::ident ... 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]    Doc-tests amplify_syn
[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" "190fc133743fcb607a99f7baad5af39ba5904833e3be58ab8b5cf129c5eba525", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "190fc133743fcb607a99f7baad5af39ba5904833e3be58ab8b5cf129c5eba525", kill_on_drop: false }`
[INFO] [stdout] 190fc133743fcb607a99f7baad5af39ba5904833e3be58ab8b5cf129c5eba525