[INFO] fetching crate coppers 0.1.1...
[INFO] documenting coppers-0.1.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate coppers 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate coppers 0.1.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coppers 0.1.1
[INFO] finished tweaking crates.io crate coppers 0.1.1
[INFO] tweaked toml for crates.io crate coppers 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libgit2-sys v0.13.5+1.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 61987c358fef8766c72a34320d6db6ca443fe8aee1b2b5c4fdd4fee2c8a17c33
[INFO] running `Command { std: "docker" "start" "-a" "61987c358fef8766c72a34320d6db6ca443fe8aee1b2b5c4fdd4fee2c8a17c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "61987c358fef8766c72a34320d6db6ca443fe8aee1b2b5c4fdd4fee2c8a17c33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61987c358fef8766c72a34320d6db6ca443fe8aee1b2b5c4fdd4fee2c8a17c33", kill_on_drop: false }`
[INFO] [stdout] 61987c358fef8766c72a34320d6db6ca443fe8aee1b2b5c4fdd4fee2c8a17c33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 851e3afd25c14a5b740a63d1debfd680a7660f4ccc56210f68fc5d426aff9244
[INFO] running `Command { std: "docker" "start" "-a" "851e3afd25c14a5b740a63d1debfd680a7660f4ccc56210f68fc5d426aff9244", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.13.5+1.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking git2 v0.14.4
[INFO] [stderr]  Documenting coppers v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(test)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(internal_output_capture)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `coppers`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name coppers src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=fd6985e6d9f2e981 -L dependency=/opt/rustwide/target/debug/deps --extern git2=/opt/rustwide/target/debug/deps/libgit2-5dc10b7b9fbc3879.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-a89e095190f56c37.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-c4eddf7df4eb8638.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f81ccc6220d80f4e.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f64eecf75494187.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "851e3afd25c14a5b740a63d1debfd680a7660f4ccc56210f68fc5d426aff9244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851e3afd25c14a5b740a63d1debfd680a7660f4ccc56210f68fc5d426aff9244", kill_on_drop: false }`
[INFO] [stdout] 851e3afd25c14a5b740a63d1debfd680a7660f4ccc56210f68fc5d426aff9244
[INFO] documenting coppers-0.1.1 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate coppers 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate coppers 0.1.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coppers 0.1.1
[INFO] finished tweaking crates.io crate coppers 0.1.1
[INFO] tweaked toml for crates.io crate coppers 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e095dfc08f661f49abaaabbf7f141c50c7b06658e2276cccb8d5e25221b27e7
[INFO] running `Command { std: "docker" "start" "-a" "1e095dfc08f661f49abaaabbf7f141c50c7b06658e2276cccb8d5e25221b27e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e095dfc08f661f49abaaabbf7f141c50c7b06658e2276cccb8d5e25221b27e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e095dfc08f661f49abaaabbf7f141c50c7b06658e2276cccb8d5e25221b27e7", kill_on_drop: false }`
[INFO] [stdout] 1e095dfc08f661f49abaaabbf7f141c50c7b06658e2276cccb8d5e25221b27e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05a84bec6731d2b067acff552c355067d6bca609af5da695c0aac07537b52bfb
[INFO] running `Command { std: "docker" "start" "-a" "05a84bec6731d2b067acff552c355067d6bca609af5da695c0aac07537b52bfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling jobserver v0.1.28
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.13.5+1.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking serde_json v1.0.113
[INFO] [stderr]     Checking git2 v0.14.4
[INFO] [stderr]  Documenting coppers v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(test)]
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(internal_output_capture)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `coppers`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name coppers src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=21103ee3f12d84df -L dependency=/opt/rustwide/target/debug/deps --extern git2=/opt/rustwide/target/debug/deps/libgit2-918aeb463ff8eb8a.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-5d39bbac87d797f4.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-9cbcf9f34ed2856d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-11ab8d75007f67f1.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-7dfbe861c5eafa9d.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "05a84bec6731d2b067acff552c355067d6bca609af5da695c0aac07537b52bfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a84bec6731d2b067acff552c355067d6bca609af5da695c0aac07537b52bfb", kill_on_drop: false }`
[INFO] [stdout] 05a84bec6731d2b067acff552c355067d6bca609af5da695c0aac07537b52bfb
