[INFO] fetching crate assert_ng 0.0.3...
[INFO] documenting assert_ng-0.0.3 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate assert_ng 0.0.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate assert_ng 0.0.3 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert_ng 0.0.3
[INFO] finished tweaking crates.io crate assert_ng 0.0.3
[INFO] tweaked toml for crates.io crate assert_ng 0.0.3 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" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f20465279e1eca0bb098946efa98140e5c2b13b7ec683e1db8775300a1fc584d
[INFO] running `Command { std: "docker" "start" "-a" "f20465279e1eca0bb098946efa98140e5c2b13b7ec683e1db8775300a1fc584d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f20465279e1eca0bb098946efa98140e5c2b13b7ec683e1db8775300a1fc584d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20465279e1eca0bb098946efa98140e5c2b13b7ec683e1db8775300a1fc584d", kill_on_drop: false }`
[INFO] [stdout] f20465279e1eca0bb098946efa98140e5c2b13b7ec683e1db8775300a1fc584d
[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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af0a394044de8ac2b79a5f51f76065df015b9709398c454ae581e6e7ccdd0673
[INFO] running `Command { std: "docker" "start" "-a" "af0a394044de8ac2b79a5f51f76065df015b9709398c454ae581e6e7ccdd0673", kill_on_drop: false }`
[INFO] [stderr]  Documenting assert_ng v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]  --> src/lib.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use syntax::parse::{mod, token, lexer};
[INFO] [stdout]   |                     ^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: escape `mod` to use it as an identifier
[INFO] [stdout]   |
[INFO] [stdout] 8 | use syntax::parse::{r#mod, token, lexer};
[INFO] [stdout]   |                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]   --> src/lib.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | use syntax::ast::{mod, TokenTree};
[INFO] [stdout]    |                   ^^^ expected identifier, found keyword
[INFO] [stdout]    |
[INFO] [stdout] help: escape `mod` to use it as an identifier
[INFO] [stdout]    |
[INFO] [stdout] 10 | use syntax::ast::{r#mod, TokenTree};
[INFO] [stdout]    |                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, slicing_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: plugins are no longer supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, slicing_syntax)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `assert_ng`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type dylib --crate-name assert_ng src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9048618cc3fdfbc1 -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "af0a394044de8ac2b79a5f51f76065df015b9709398c454ae581e6e7ccdd0673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0a394044de8ac2b79a5f51f76065df015b9709398c454ae581e6e7ccdd0673", kill_on_drop: false }`
[INFO] [stdout] af0a394044de8ac2b79a5f51f76065df015b9709398c454ae581e6e7ccdd0673
[INFO] documenting assert_ng-0.0.3 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate assert_ng 0.0.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate assert_ng 0.0.3 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assert_ng 0.0.3
[INFO] finished tweaking crates.io crate assert_ng 0.0.3
[INFO] tweaked toml for crates.io crate assert_ng 0.0.3 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-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad0252fea17184bcbcff52b5c2f9c87bf02270a38214201cfe0be4994775643f
[INFO] running `Command { std: "docker" "start" "-a" "ad0252fea17184bcbcff52b5c2f9c87bf02270a38214201cfe0be4994775643f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad0252fea17184bcbcff52b5c2f9c87bf02270a38214201cfe0be4994775643f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad0252fea17184bcbcff52b5c2f9c87bf02270a38214201cfe0be4994775643f", kill_on_drop: false }`
[INFO] [stdout] ad0252fea17184bcbcff52b5c2f9c87bf02270a38214201cfe0be4994775643f
[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-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1f4a8f81701d11ba4306310f565f6e837749ad0f797e29a220e4dc13d14a8c3
[INFO] running `Command { std: "docker" "start" "-a" "d1f4a8f81701d11ba4306310f565f6e837749ad0f797e29a220e4dc13d14a8c3", kill_on_drop: false }`
[INFO] [stderr]  Documenting assert_ng v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]  --> src/lib.rs:8:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | use syntax::parse::{mod, token, lexer};
[INFO] [stdout]   |                     ^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: escape `mod` to use it as an identifier
[INFO] [stdout]   |
[INFO] [stdout] 8 | use syntax::parse::{r#mod, token, lexer};
[INFO] [stdout]   |                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]   --> src/lib.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | use syntax::ast::{mod, TokenTree};
[INFO] [stdout]    |                   ^^^ expected identifier, found keyword
[INFO] [stdout]    |
[INFO] [stdout] help: escape `mod` to use it as an identifier
[INFO] [stdout]    |
[INFO] [stdout] 10 | use syntax::ast::{r#mod, TokenTree};
[INFO] [stdout]    |                   ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, slicing_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: plugins are no longer supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(plugin_registrar, quote, slicing_syntax)]
[INFO] [stdout]   |                              ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `assert_ng`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --crate-type dylib --crate-name assert_ng src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bc037e5a88ae5ded -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.0.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d1f4a8f81701d11ba4306310f565f6e837749ad0f797e29a220e4dc13d14a8c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f4a8f81701d11ba4306310f565f6e837749ad0f797e29a220e4dc13d14a8c3", kill_on_drop: false }`
[INFO] [stdout] d1f4a8f81701d11ba4306310f565f6e837749ad0f797e29a220e4dc13d14a8c3
