[INFO] fetching crate proc_macro2_helper 0.2.9...
[INFO] testing proc_macro2_helper-0.2.9 against 1.55.0 for beta-1.56-1
[INFO] extracting crate proc_macro2_helper 0.2.9 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate proc_macro2_helper 0.2.9 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 proc_macro2_helper 0.2.9
[INFO] finished tweaking crates.io crate proc_macro2_helper 0.2.9
[INFO] tweaked toml for crates.io crate proc_macro2_helper 0.2.9 written to /workspace/builds/worker-5/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] e581fdf30e30fa9e277f9c85bfe935145aad462713534de0b29653e57eecf889
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e581fdf30e30fa9e277f9c85bfe935145aad462713534de0b29653e57eecf889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e581fdf30e30fa9e277f9c85bfe935145aad462713534de0b29653e57eecf889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e581fdf30e30fa9e277f9c85bfe935145aad462713534de0b29653e57eecf889", kill_on_drop: false }`
[INFO] [stdout] e581fdf30e30fa9e277f9c85bfe935145aad462713534de0b29653e57eecf889
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 90caac8e86480b02d43fdf0aca7033a763cbf09cd1d954d741686d17146292f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "90caac8e86480b02d43fdf0aca7033a763cbf09cd1d954d741686d17146292f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling proc_macro2_helper v0.2.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.73s
[INFO] running `Command { std: "docker" "inspect" "90caac8e86480b02d43fdf0aca7033a763cbf09cd1d954d741686d17146292f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90caac8e86480b02d43fdf0aca7033a763cbf09cd1d954d741686d17146292f2", kill_on_drop: false }`
[INFO] [stdout] 90caac8e86480b02d43fdf0aca7033a763cbf09cd1d954d741686d17146292f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] cb7e200efd1b82a497a68a30ebef98ed0f99a359c86b80d55ee687e231717892
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cb7e200efd1b82a497a68a30ebef98ed0f99a359c86b80d55ee687e231717892", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc_macro2_helper v0.2.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "cb7e200efd1b82a497a68a30ebef98ed0f99a359c86b80d55ee687e231717892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7e200efd1b82a497a68a30ebef98ed0f99a359c86b80d55ee687e231717892", kill_on_drop: false }`
[INFO] [stdout] cb7e200efd1b82a497a68a30ebef98ed0f99a359c86b80d55ee687e231717892
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 05ff9c2810d7d0d3aa7d0187cb546d7cf72f8b21121735ebc423a1eff60465a7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05ff9c2810d7d0d3aa7d0187cb546d7cf72f8b21121735ebc423a1eff60465a7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/proc_macro2_helper-89e1dbc1eda73ded)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests proc_macro2_helper
[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" "05ff9c2810d7d0d3aa7d0187cb546d7cf72f8b21121735ebc423a1eff60465a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ff9c2810d7d0d3aa7d0187cb546d7cf72f8b21121735ebc423a1eff60465a7", kill_on_drop: false }`
[INFO] [stdout] 05ff9c2810d7d0d3aa7d0187cb546d7cf72f8b21121735ebc423a1eff60465a7