[INFO] fetching crate snapshot-proc-macro 0.1.0...
[INFO] testing snapshot-proc-macro-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate snapshot-proc-macro 0.1.0 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate snapshot-proc-macro 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 snapshot-proc-macro 0.1.0
[INFO] finished tweaking crates.io crate snapshot-proc-macro 0.1.0
[INFO] tweaked toml for crates.io crate snapshot-proc-macro 0.1.0 written to /workspace/builds/worker-36/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]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v0.14.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 0d8ab11c6d9cddf0a2bd0df45266eb3cf94854fb4524e591297c278961080413
[INFO] running `Command { std: "docker" "start" "-a" "0d8ab11c6d9cddf0a2bd0df45266eb3cf94854fb4524e591297c278961080413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d8ab11c6d9cddf0a2bd0df45266eb3cf94854fb4524e591297c278961080413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8ab11c6d9cddf0a2bd0df45266eb3cf94854fb4524e591297c278961080413", kill_on_drop: false }`
[INFO] [stdout] 0d8ab11c6d9cddf0a2bd0df45266eb3cf94854fb4524e591297c278961080413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] 29776adad1aefc834345f1b9d62ee5d95bb3fce5eafd0c579cd751b66f52c55b
[INFO] running `Command { std: "docker" "start" "-a" "29776adad1aefc834345f1b9d62ee5d95bb3fce5eafd0c579cd751b66f52c55b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling snapshot-proc-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.15s
[INFO] running `Command { std: "docker" "inspect" "29776adad1aefc834345f1b9d62ee5d95bb3fce5eafd0c579cd751b66f52c55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29776adad1aefc834345f1b9d62ee5d95bb3fce5eafd0c579cd751b66f52c55b", kill_on_drop: false }`
[INFO] [stdout] 29776adad1aefc834345f1b9d62ee5d95bb3fce5eafd0c579cd751b66f52c55b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] a9ed4948404f487cb09770c8bd959a2197c51707c819c43c733c377b01c76ac6
[INFO] running `Command { std: "docker" "start" "-a" "a9ed4948404f487cb09770c8bd959a2197c51707c819c43c733c377b01c76ac6", kill_on_drop: false }`
[INFO] [stderr]    Compiling snapshot-proc-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.87s
[INFO] running `Command { std: "docker" "inspect" "a9ed4948404f487cb09770c8bd959a2197c51707c819c43c733c377b01c76ac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9ed4948404f487cb09770c8bd959a2197c51707c819c43c733c377b01c76ac6", kill_on_drop: false }`
[INFO] [stdout] a9ed4948404f487cb09770c8bd959a2197c51707c819c43c733c377b01c76ac6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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] a00e81a731db5b539b27ccc73f8f310dfeefc5730f57d60628894e03a10115a1
[INFO] running `Command { std: "docker" "start" "-a" "a00e81a731db5b539b27ccc73f8f310dfeefc5730f57d60628894e03a10115a1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/snapshot_proc_macro-835e588afc95f330)
[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] [stderr]    Doc-tests snapshot-proc-macro
[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" "a00e81a731db5b539b27ccc73f8f310dfeefc5730f57d60628894e03a10115a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a00e81a731db5b539b27ccc73f8f310dfeefc5730f57d60628894e03a10115a1", kill_on_drop: false }`
[INFO] [stdout] a00e81a731db5b539b27ccc73f8f310dfeefc5730f57d60628894e03a10115a1