[INFO] cloning repository https://github.com/youngspe/gramma
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/youngspe/gramma" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoungspe%2Fgramma", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoungspe%2Fgramma'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8469f196962732b88494a6fc2f1feb3a4abd303d
[INFO] checking youngspe/gramma against try#590af02d982816cfb2e4e43f8c54065e816581ce for pr-111505
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyoungspe%2Fgramma" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/youngspe/gramma on toolchain 590af02d982816cfb2e4e43f8c54065e816581ce
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/youngspe/gramma
[INFO] finished tweaking git repo https://github.com/youngspe/gramma
[INFO] tweaked toml for git repo https://github.com/youngspe/gramma written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/youngspe/gramma already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eac57aad30179dbd155062d7c311281dcf72780e172dc681afadc5544bdc6f35
[INFO] running `Command { std: "docker" "start" "-a" "eac57aad30179dbd155062d7c311281dcf72780e172dc681afadc5544bdc6f35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eac57aad30179dbd155062d7c311281dcf72780e172dc681afadc5544bdc6f35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eac57aad30179dbd155062d7c311281dcf72780e172dc681afadc5544bdc6f35", kill_on_drop: false }`
[INFO] [stdout] eac57aad30179dbd155062d7c311281dcf72780e172dc681afadc5544bdc6f35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+590af02d982816cfb2e4e43f8c54065e816581ce" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf9edfe322ecc6d2c336da833e95c593fe9da82f7f2040faa81a07275f255a6f
[INFO] running `Command { std: "docker" "start" "-a" "bf9edfe322ecc6d2c336da833e95c593fe9da82f7f2040faa81a07275f255a6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking gramma v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/lex.rs:245:7
[INFO] [stdout]     |
[INFO] [stdout] 245 | #[doc(Hidden)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown `doc` attribute `Hidden`
[INFO] [stdout]    --> src/lex.rs:245:7
[INFO] [stdout]     |
[INFO] [stdout] 245 | #[doc(Hidden)]
[INFO] [stdout]     |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gramma` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gramma` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bf9edfe322ecc6d2c336da833e95c593fe9da82f7f2040faa81a07275f255a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf9edfe322ecc6d2c336da833e95c593fe9da82f7f2040faa81a07275f255a6f", kill_on_drop: false }`
[INFO] [stdout] bf9edfe322ecc6d2c336da833e95c593fe9da82f7f2040faa81a07275f255a6f