[INFO] fetching crate redoxfs 0.5.8...
[INFO] documenting redoxfs-0.5.8 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate redoxfs 0.5.8 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate redoxfs 0.5.8 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 redoxfs 0.5.8
[INFO] finished tweaking crates.io crate redoxfs 0.5.8
[INFO] tweaked toml for crates.io crate redoxfs 0.5.8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate redoxfs 0.5.8 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_simple_endian v0.3.0
[INFO] [stderr]   Downloaded fuser v0.12.0
[INFO] [stderr]   Downloaded range-tree v0.1.0
[INFO] [stderr]   Downloaded zerocopy v0.6.4
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded argon2 v0.3.4
[INFO] [stderr]   Downloaded redox_syscall v0.4.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.6.4
[INFO] [stderr]   Downloaded termion v1.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e308a334a1ae7ab969fd133feaa52ee73460534457df947ca05e4a6318509237
[INFO] running `Command { std: "docker" "start" "-a" "e308a334a1ae7ab969fd133feaa52ee73460534457df947ca05e4a6318509237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e308a334a1ae7ab969fd133feaa52ee73460534457df947ca05e4a6318509237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e308a334a1ae7ab969fd133feaa52ee73460534457df947ca05e4a6318509237", kill_on_drop: false }`
[INFO] [stdout] e308a334a1ae7ab969fd133feaa52ee73460534457df947ca05e4a6318509237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c46d0835696ac2d9be2cc15e52b255b7b13e54d911fcd07bb4b8b6a060ca030d
[INFO] running `Command { std: "docker" "start" "-a" "c46d0835696ac2d9be2cc15e52b255b7b13e54d911fcd07bb4b8b6a060ca030d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking object v0.32.1
[INFO] [stderr]    Compiling fuser v0.12.0
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking base64ct v1.6.0
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking aes v0.7.5
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking redox_syscall v0.4.0
[INFO] [stderr]     Checking argon2 v0.3.4
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking redox_simple_endian v0.3.0
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking range-tree v0.1.0
[INFO] [stderr]    Compiling zerocopy-derive v0.6.4
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking zerocopy v0.6.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]  Documenting redoxfs v0.5.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(int_roundings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `redoxfs`
[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=2018 --crate-type lib --crate-name redoxfs src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="env_logger"' --cfg 'feature="fuser"' --cfg 'feature="getrandom"' --cfg 'feature="libc"' --cfg 'feature="log"' --cfg 'feature="std"' --cfg 'feature="termion"' --cfg 'feature="time"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=288b5d0a5e7e8949 -L dependency=/opt/rustwide/target/debug/deps --extern aes=/opt/rustwide/target/debug/deps/libaes-a20599b0c97d507c.rmeta --extern argon2=/opt/rustwide/target/debug/deps/libargon2-9d52a34bda9b089c.rmeta --extern base64ct=/opt/rustwide/target/debug/deps/libbase64ct-b78a2b49eba93b2a.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-4a6bef7ba5c2d12a.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-7b8f84d3b218fd09.rmeta --extern fuser=/opt/rustwide/target/debug/deps/libfuser-90af9144b732e42f.rmeta --extern getrandom=/opt/rustwide/target/debug/deps/libgetrandom-8abc75cd7d263d68.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-e14274eab64b2805.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-adcbaf8a98132d5a.rmeta --extern range_tree=/opt/rustwide/target/debug/deps/librange_tree-336e5effa1188011.rmeta --extern simple_endian=/opt/rustwide/target/debug/deps/libsimple_endian-e80d99e66d5d4b5e.rmeta --extern syscall=/opt/rustwide/target/debug/deps/libsyscall-b7d83c38b540ee88.rmeta --extern seahash=/opt/rustwide/target/debug/deps/libseahash-044696ae85201827.rmeta --extern termion=/opt/rustwide/target/debug/deps/libtermion-279ba7b3787741eb.rmeta --extern time=/opt/rustwide/target/debug/deps/libtime-4c5b254cb9e1c9d9.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-0aa2d3890c0e2d53.rmeta --cap-lints=warn --crate-version 0.5.8` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c46d0835696ac2d9be2cc15e52b255b7b13e54d911fcd07bb4b8b6a060ca030d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c46d0835696ac2d9be2cc15e52b255b7b13e54d911fcd07bb4b8b6a060ca030d", kill_on_drop: false }`
[INFO] [stdout] c46d0835696ac2d9be2cc15e52b255b7b13e54d911fcd07bb4b8b6a060ca030d
