[INFO] fetching crate langcraft_api 0.1.2...
[INFO] checking langcraft_api-0.1.2 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate langcraft_api 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate langcraft_api 0.1.2 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate langcraft_api 0.1.2
[INFO] finished tweaking crates.io crate langcraft_api 0.1.2
[INFO] tweaked toml for crates.io crate langcraft_api 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c7456e021ec81db58035b00a03544e6b123464320484bcc93756ec247668df7
[INFO] running `Command { std: "docker" "start" "-a" "8c7456e021ec81db58035b00a03544e6b123464320484bcc93756ec247668df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c7456e021ec81db58035b00a03544e6b123464320484bcc93756ec247668df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c7456e021ec81db58035b00a03544e6b123464320484bcc93756ec247668df7", kill_on_drop: false }`
[INFO] [stdout] 8c7456e021ec81db58035b00a03544e6b123464320484bcc93756ec247668df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aef2be5777cb1b88449b35ed69c43615fedba628b0ce99ba07828f1b098b3a82
[INFO] running `Command { std: "docker" "start" "-a" "aef2be5777cb1b88449b35ed69c43615fedba628b0ce99ba07828f1b098b3a82", kill_on_drop: false }`
[INFO] [stderr]     Checking langcraft_api v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]    --> src/lib.rs:189:7
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[rustc_args_required_const(0, 1)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]    --> src/lib.rs:189:7
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[rustc_args_required_const(0, 1)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]    --> src/lib.rs:189:7
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[rustc_args_required_const(0, 1)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_args_required_const` in this scope
[INFO] [stdout]    --> src/lib.rs:189:7
[INFO] [stdout]     |
[INFO] [stdout] 189 |     #[rustc_args_required_const(0, 1)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `langcraft_api` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `langcraft_api` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "aef2be5777cb1b88449b35ed69c43615fedba628b0ce99ba07828f1b098b3a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef2be5777cb1b88449b35ed69c43615fedba628b0ce99ba07828f1b098b3a82", kill_on_drop: false }`
[INFO] [stdout] aef2be5777cb1b88449b35ed69c43615fedba628b0ce99ba07828f1b098b3a82