[INFO] fetching crate synstructure 0.12.4...
[INFO] testing synstructure-0.12.4 against 1.49.0 for beta-1.50-1
[INFO] extracting crate synstructure 0.12.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate synstructure 0.12.4 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synstructure 0.12.4
[INFO] finished tweaking crates.io crate synstructure 0.12.4
[INFO] tweaked toml for crates.io crate synstructure 0.12.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e9c181c65002d62ae8ad094ec5d0584470830f8d5aa75fa7f63da31a10e62b2
[INFO] running `Command { std: "docker" "start" "-a" "9e9c181c65002d62ae8ad094ec5d0584470830f8d5aa75fa7f63da31a10e62b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e9c181c65002d62ae8ad094ec5d0584470830f8d5aa75fa7f63da31a10e62b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9c181c65002d62ae8ad094ec5d0584470830f8d5aa75fa7f63da31a10e62b2", kill_on_drop: false }`
[INFO] [stdout] 9e9c181c65002d62ae8ad094ec5d0584470830f8d5aa75fa7f63da31a10e62b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50de4622c7a64ef038f3c8c0ea7b709fa86e7b487867ec61cccd95a7978c66f8
[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" "50de4622c7a64ef038f3c8c0ea7b709fa86e7b487867ec61cccd95a7978c66f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling synstructure v0.12.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.51s
[INFO] running `Command { std: "docker" "inspect" "50de4622c7a64ef038f3c8c0ea7b709fa86e7b487867ec61cccd95a7978c66f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50de4622c7a64ef038f3c8c0ea7b709fa86e7b487867ec61cccd95a7978c66f8", kill_on_drop: false }`
[INFO] [stdout] 50de4622c7a64ef038f3c8c0ea7b709fa86e7b487867ec61cccd95a7978c66f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e014c1df2be2ef37b0f9cdd680785a8f46912837d0c1c391cb94ff7d00a9244b
[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" "e014c1df2be2ef37b0f9cdd680785a8f46912837d0c1c391cb94ff7d00a9244b", kill_on_drop: false }`
[INFO] [stderr]    Compiling synstructure_test_traits v0.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.21s
[INFO] running `Command { std: "docker" "inspect" "e014c1df2be2ef37b0f9cdd680785a8f46912837d0c1c391cb94ff7d00a9244b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e014c1df2be2ef37b0f9cdd680785a8f46912837d0c1c391cb94ff7d00a9244b", kill_on_drop: false }`
[INFO] [stdout] e014c1df2be2ef37b0f9cdd680785a8f46912837d0c1c391cb94ff7d00a9244b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0cc9e5e5efd6776c578331fd8508f0eb608666ead962efe773807890d228048
[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" "f0cc9e5e5efd6776c578331fd8508f0eb608666ead962efe773807890d228048", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/synstructure-39a67417383647f6
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests synstructure
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 42 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - (line 79) ... ok
[INFO] [stdout] test src/lib.rs - Structure::gen_impl (line 1993) ... ignored
[INFO] [stdout] test src/lib.rs - Structure::gen_impl (line 2035) ... ignored
[INFO] [stdout] test src/lib.rs - Structure::gen_impl (line 2048) ... ignored
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --test /opt/rustwide/workdir/src/lib.rs --crate-name synstructure -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cfg 'feature="proc-macro"' --cfg 'feature="default"' --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-56eed3244bb402e0.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-98e975051e12a5ed.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-6678bd75e0464a9b.rlib --extern synstructure=/opt/rustwide/target/debug/deps/libsynstructure-7a9918d7c3a27444.rlib --extern synstructure_test_traits=/opt/rustwide/target/debug/deps/libsynstructure_test_traits-e7d5eb3775fc7fd6.rlib --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1c0accd586890c80.rlib -C embed-bitcode=no` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "f0cc9e5e5efd6776c578331fd8508f0eb608666ead962efe773807890d228048", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0cc9e5e5efd6776c578331fd8508f0eb608666ead962efe773807890d228048", kill_on_drop: false }`
[INFO] [stdout] f0cc9e5e5efd6776c578331fd8508f0eb608666ead962efe773807890d228048