[INFO] fetching crate gramma 0.1.1...
[INFO] testing gramma-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate gramma 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gramma 0.1.1 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 gramma 0.1.1
[INFO] finished tweaking crates.io crate gramma 0.1.1
[INFO] tweaked toml for crates.io crate gramma 0.1.1 written to /workspace/builds/worker-6/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 43749da9bb94e285b45487ae6f77b7b3910dc23b67c067e726dc5c0ce7a92e10
[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" "43749da9bb94e285b45487ae6f77b7b3910dc23b67c067e726dc5c0ce7a92e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43749da9bb94e285b45487ae6f77b7b3910dc23b67c067e726dc5c0ce7a92e10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43749da9bb94e285b45487ae6f77b7b3910dc23b67c067e726dc5c0ce7a92e10", kill_on_drop: false }`
[INFO] [stdout] 43749da9bb94e285b45487ae6f77b7b3910dc23b67c067e726dc5c0ce7a92e10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 86a3b0135a0e1081c87f6e34ecf7399920f80295e72d6884af7d6317724aa759
[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" "86a3b0135a0e1081c87f6e34ecf7399920f80295e72d6884af7d6317724aa759", kill_on_drop: false }`
[INFO] [stderr]    Compiling gramma v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/lex.rs:245:7
[INFO] [stdout]     |
[INFO] [stdout] 245 | #[doc(Hidden)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "86a3b0135a0e1081c87f6e34ecf7399920f80295e72d6884af7d6317724aa759", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a3b0135a0e1081c87f6e34ecf7399920f80295e72d6884af7d6317724aa759", kill_on_drop: false }`
[INFO] [stdout] 86a3b0135a0e1081c87f6e34ecf7399920f80295e72d6884af7d6317724aa759
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 1944e2a2360863b6e40ffb234ce36a241e1ac4f87a23cc99d3d5008456e1eb1c
[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" "1944e2a2360863b6e40ffb234ce36a241e1ac4f87a23cc99d3d5008456e1eb1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling gramma v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/lex.rs:245:7
[INFO] [stdout]     |
[INFO] [stdout] 245 | #[doc(Hidden)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/lex.rs:245:7
[INFO] [stdout]     |
[INFO] [stdout] 245 | #[doc(Hidden)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.86s
[INFO] running `Command { std: "docker" "inspect" "1944e2a2360863b6e40ffb234ce36a241e1ac4f87a23cc99d3d5008456e1eb1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1944e2a2360863b6e40ffb234ce36a241e1ac4f87a23cc99d3d5008456e1eb1c", kill_on_drop: false }`
[INFO] [stdout] 1944e2a2360863b6e40ffb234ce36a241e1ac4f87a23cc99d3d5008456e1eb1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 34712d6c7989f2e6e6816f6f6c183c5b368ad37f7c68dc4bfb43b657df8d2e96
[INFO] running `Command { std: "docker" "start" "-a" "34712d6c7989f2e6e6816f6f6c183c5b368ad37f7c68dc4bfb43b657df8d2e96", kill_on_drop: false }`
[INFO] [stderr] warning: unknown `doc` attribute `Hidden`
[INFO] [stderr]    --> src/lex.rs:245:7
[INFO] [stderr]     |
[INFO] [stderr] 245 | #[doc(Hidden)]
[INFO] [stderr]     |       ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(invalid_doc_attributes)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #82730 <https://github.com/rust-lang/rust/issues/82730>
[INFO] [stderr] 
[INFO] [stderr] warning: `gramma` (lib) generated 1 warning
[INFO] [stderr] warning: `gramma` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gramma-7061d8f0848d4d1e)
[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]      Running tests/common.rs (/opt/rustwide/target/debug/deps/common-d3b6a1cc9c42d816)
[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]      Running tests/json.rs (/opt/rustwide/target/debug/deps/json-a9ca48f467b51ff3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parse_json ... 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]      Running tests/lispish.rs (/opt/rustwide/target/debug/deps/lispish-a80e029fd79382cb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parse_lispish ... 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 gramma
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[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 --crate-name gramma --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern gramma=/opt/rustwide/target/debug/deps/libgramma-ba2884a6766be394.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-90f11ea12ce25448.rlib --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-0e12401d3f654579.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-506b9e4c94f35c09.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "34712d6c7989f2e6e6816f6f6c183c5b368ad37f7c68dc4bfb43b657df8d2e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34712d6c7989f2e6e6816f6f6c183c5b368ad37f7c68dc4bfb43b657df8d2e96", kill_on_drop: false }`
[INFO] [stdout] 34712d6c7989f2e6e6816f6f6c183c5b368ad37f7c68dc4bfb43b657df8d2e96