[INFO] fetching crate syn-mid 0.5.3...
[INFO] testing syn-mid-0.5.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate syn-mid 0.5.3 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate syn-mid 0.5.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syn-mid 0.5.3
[INFO] finished tweaking crates.io crate syn-mid 0.5.3
[INFO] tweaked toml for crates.io crate syn-mid 0.5.3 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 161732e0639ca78ba2c60ff114bf1b3a2a7ca807012c189cab64ef69533807d1
[INFO] running `Command { std: "docker" "start" "-a" "161732e0639ca78ba2c60ff114bf1b3a2a7ca807012c189cab64ef69533807d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161732e0639ca78ba2c60ff114bf1b3a2a7ca807012c189cab64ef69533807d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161732e0639ca78ba2c60ff114bf1b3a2a7ca807012c189cab64ef69533807d1", kill_on_drop: false }`
[INFO] [stdout] 161732e0639ca78ba2c60ff114bf1b3a2a7ca807012c189cab64ef69533807d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a51a8c65b337d9037d9f5efd4d0ca9b1b52d623f7b5a367bebe257c9421f2789
[INFO] running `Command { std: "docker" "start" "-a" "a51a8c65b337d9037d9f5efd4d0ca9b1b52d623f7b5a367bebe257c9421f2789", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn-mid v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "a51a8c65b337d9037d9f5efd4d0ca9b1b52d623f7b5a367bebe257c9421f2789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a51a8c65b337d9037d9f5efd4d0ca9b1b52d623f7b5a367bebe257c9421f2789", kill_on_drop: false }`
[INFO] [stdout] a51a8c65b337d9037d9f5efd4d0ca9b1b52d623f7b5a367bebe257c9421f2789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5605d981747a57d0f422cc583803faaa92fb551107f6888905fbbde9b1e9baa2
[INFO] running `Command { std: "docker" "start" "-a" "5605d981747a57d0f422cc583803faaa92fb551107f6888905fbbde9b1e9baa2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn-mid v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "5605d981747a57d0f422cc583803faaa92fb551107f6888905fbbde9b1e9baa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5605d981747a57d0f422cc583803faaa92fb551107f6888905fbbde9b1e9baa2", kill_on_drop: false }`
[INFO] [stdout] 5605d981747a57d0f422cc583803faaa92fb551107f6888905fbbde9b1e9baa2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b5a24db45c681c8b49b5bce04fc955fb5062b11628e396739a1de9c3fe5cda3
[INFO] running `Command { std: "docker" "start" "-a" "5b5a24db45c681c8b49b5bce04fc955fb5062b11628e396739a1de9c3fe5cda3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syn_mid-83b70667b0ed5138)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syn-mid
[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] [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" "5b5a24db45c681c8b49b5bce04fc955fb5062b11628e396739a1de9c3fe5cda3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5a24db45c681c8b49b5bce04fc955fb5062b11628e396739a1de9c3fe5cda3", kill_on_drop: false }`
[INFO] [stdout] 5b5a24db45c681c8b49b5bce04fc955fb5062b11628e396739a1de9c3fe5cda3