[INFO] fetching crate psbattletools 0.2.4...
[INFO] documenting psbattletools-0.2.4 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate psbattletools 0.2.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate psbattletools 0.2.4 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 psbattletools 0.2.4
[INFO] finished tweaking crates.io crate psbattletools 0.2.4
[INFO] tweaked toml for crates.io crate psbattletools 0.2.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate psbattletools 0.2.4 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded libc v0.2.104
[INFO] [stderr]   Downloaded gjson v0.8.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c778f6812f7acd8b20c1e1c7c63b2ab6a8f304a697bf26a12eb22cb83a3621ea
[INFO] running `Command { std: "docker" "start" "-a" "c778f6812f7acd8b20c1e1c7c63b2ab6a8f304a697bf26a12eb22cb83a3621ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c778f6812f7acd8b20c1e1c7c63b2ab6a8f304a697bf26a12eb22cb83a3621ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c778f6812f7acd8b20c1e1c7c63b2ab6a8f304a697bf26a12eb22cb83a3621ea", kill_on_drop: false }`
[INFO] [stdout] c778f6812f7acd8b20c1e1c7c63b2ab6a8f304a697bf26a12eb22cb83a3621ea
[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=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] 02b7f5784f6913208058408c319b0a5acde6845cd59e6830868f2b57067880d0
[INFO] running `Command { std: "docker" "start" "-a" "02b7f5784f6913208058408c319b0a5acde6845cd59e6830868f2b57067880d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking gjson v0.8.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]  Documenting psbattletools v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse, test)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse, test)]
[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 `psbattletools`
[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 --edition=2021 --crate-type bin --crate-name psbattletools src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=1d6d51fbf58cb321 -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-39c1b6f3e349d697.rmeta --extern gjson=/opt/rustwide/target/debug/deps/libgjson-709c7b54c919987b.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-e6d7ef15605eee07.rmeta --extern json=/opt/rustwide/target/debug/deps/libjson-77e08433c0b6699a.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern prettytable=/opt/rustwide/target/debug/deps/libprettytable-77954760632fbe1d.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-b8d5d1ed1ff1e392.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-f64be15b51fe8a2b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-861673aef7ed5fdf.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-758bfe3bfa15a0b3.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-83987833e25aa891.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-107afe101fe5fa4a.rmeta --cap-lints=warn --crate-version 0.2.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "02b7f5784f6913208058408c319b0a5acde6845cd59e6830868f2b57067880d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b7f5784f6913208058408c319b0a5acde6845cd59e6830868f2b57067880d0", kill_on_drop: false }`
[INFO] [stdout] 02b7f5784f6913208058408c319b0a5acde6845cd59e6830868f2b57067880d0
