[INFO] fetching crate otter 0.7.3...
[INFO] documenting otter-0.7.3 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate otter 0.7.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate otter 0.7.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate otter 0.7.3
[INFO] finished tweaking crates.io crate otter 0.7.3
[INFO] tweaked toml for crates.io crate otter 0.7.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate otter 0.7.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3c698d7fa9a877f6cf0ac0dbb17dd83e9e7b4effa2361f73dbdd15608be2e915
[INFO] running `Command { std: "docker" "start" "-a" "3c698d7fa9a877f6cf0ac0dbb17dd83e9e7b4effa2361f73dbdd15608be2e915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c698d7fa9a877f6cf0ac0dbb17dd83e9e7b4effa2361f73dbdd15608be2e915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c698d7fa9a877f6cf0ac0dbb17dd83e9e7b4effa2361f73dbdd15608be2e915", kill_on_drop: false }`
[INFO] [stdout] 3c698d7fa9a877f6cf0ac0dbb17dd83e9e7b4effa2361f73dbdd15608be2e915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0a16e0776fd7c946f979daca892d80dc728e7f8cdb8170ad4aea00661c2f1b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e0a16e0776fd7c946f979daca892d80dc728e7f8cdb8170ad4aea00661c2f1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]     Checking lazy-init v0.5.0
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling slotmap-fork-otter v1.0.2
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking filetime v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking uds v0.2.6
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling derive-into-owned v0.1.0
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking vecdeque-stableix v1.0.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling enum-map-derive v0.6.0
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling delegate v0.6.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]    Compiling enum_dispatch v0.3.7
[INFO] [stderr]     Checking bzip2 v0.4.3
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling parse-zoneinfo v0.3.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling extend v1.1.1
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking openssh-keys v0.5.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling chrono-tz v0.5.3
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pwd v1.3.1
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]    Compiling darling v0.13.0
[INFO] [stderr]    Compiling serde_with_macros v1.4.2
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_with v1.9.4
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking erased-serde v0.3.16
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking index_vec v0.1.2
[INFO] [stderr]     Checking enum-map v1.1.1
[INFO] [stderr]     Checking typetag v0.1.7
[INFO] [stderr]     Checking flexi_logger v0.18.0
[INFO] [stderr]     Checking otter-base v0.7.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking tera v1.12.1
[INFO] [stderr]    Compiling cast_trait_object_macros v0.1.3
[INFO] [stderr]     Checking cast_trait_object v0.1.3
[INFO] [stderr]     Checking otter v0.7.3 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting otter v0.7.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(min_type_alias_impl_trait)]
[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:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(min_type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 `otter`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name otter src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-c71486e08dde7454.rmeta --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-b1b2ca0c986ba649.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-06135271d248c171.rmeta --extern boolinator=/opt/rustwide/target/debug/deps/libboolinator-2d1d581d8b6d5948.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-b55b8e72bfe1c077.rmeta --extern cast_trait_object=/opt/rustwide/target/debug/deps/libcast_trait_object-a68a69f603566803.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-e4285c191751bcd8.rmeta --extern chrono_tz=/opt/rustwide/target/debug/deps/libchrono_tz-0ab3335bb7be868d.rmeta --extern console=/opt/rustwide/target/debug/deps/libconsole-2cc72287d6ba217b.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-1fa8f62856b38398.rmeta --extern delegate=/opt/rustwide/target/debug/deps/libdelegate-560c5adb73f71617.so --extern derive_into_owned=/opt/rustwide/target/debug/deps/libderive_into_owned-099112fdc9bec53d.so --extern digest=/opt/rustwide/target/debug/deps/libdigest-453a1e2f6793acb3.rmeta --extern downcast_rs=/opt/rustwide/target/debug/deps/libdowncast_rs-a09f2941b4ede59d.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-c2989fcf2933251d.rmeta --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-56f22f9bd246e1a3.rmeta --extern enum_dispatch=/opt/rustwide/target/debug/deps/libenum_dispatch-9f223659dedd246e.so --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-94cb3537058e58e2.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-f885cbd115593e83.rmeta --extern fehler=/opt/rustwide/target/debug/deps/libfehler-67128919e8c93cf9.rmeta --extern flexi_logger=/opt/rustwide/target/debug/deps/libflexi_logger-001123c31007a9db.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-fbecfd79a94d855b.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-dd005bda8a71734d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-2833d775cb23a360.rmeta --extern index_vec=/opt/rustwide/target/debug/deps/libindex_vec-b3642955caf086e5.rmeta --extern inventory=/opt/rustwide/target/debug/deps/libinventory-8595f12c258892ea.rmeta --extern lazy_init=/opt/rustwide/target/debug/deps/liblazy_init-16a8214095505580.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-5843a6bc012a5731.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-8b0dd1f6fefde5c3.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-b98b7a582d00cfce.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-2aa64df936a0c12a.rmeta --extern num_derive=/opt/rustwide/target/debug/deps/libnum_derive-d43f36a512207c06.so --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-36a9706cfe4ada58.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-1b80003de675d828.rmeta --extern openssh_keys=/opt/rustwide/target/debug/deps/libopenssh_keys-cf9256f9460e1f40.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-5409f59248332597.rmeta --extern otter_base=/opt/rustwide/target/debug/deps/libotter_base-4c8ab0ca4a05a748.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-9a3ba6c9bd5f5e55.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-ede8fd58102f5c41.rmeta --extern pwd=/opt/rustwide/target/debug/deps/libpwd-2af00aed9a52daa9.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-9572e208cbfcdd8b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-46bf5b535d6b6b09.rmeta --extern rmp=/opt/rustwide/target/debug/deps/librmp-89009dabc4fe3c3f.rmeta --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-8d3acc0ae4e18efa.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-8807003c9cb3798a.rmeta --extern serde_with=/opt/rustwide/target/debug/deps/libserde_with-c55175f4f5346d90.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-ccf64eb9bee4c400.rmeta --extern slotmap=/opt/rustwide/target/debug/deps/libslotmap_fork_otter-bbc63fb08de309e3.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-1b35d7aa644ece7d.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-2d31a8c3c3705f29.rmeta --extern subtle=/opt/rustwide/target/debug/deps/libsubtle-0f23a8ac4c8a306f.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-45d3719236a1cec1.rmeta --extern tera_standalone=/opt/rustwide/target/debug/deps/libtera-0a63b5a4c5db0191.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-b496fdae91b781ac.rmeta --extern typetag=/opt/rustwide/target/debug/deps/libtypetag-0f7687c430a3d7d6.rmeta --extern uds=/opt/rustwide/target/debug/deps/libuds-b8ec1e3f77578325.rmeta --extern unicase=/opt/rustwide/target/debug/deps/libunicase-2ddf88b8b02cf052.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-c081668b317203dd.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-f6ffcc7df1261a72.rmeta --extern vecdeque_stableix=/opt/rustwide/target/debug/deps/libvecdeque_stableix-b21d1895620beaa5.rmeta --extern xmlparser=/opt/rustwide/target/debug/deps/libxmlparser-d78898405eb5ed46.rmeta --extern zip=/opt/rustwide/target/debug/deps/libzip-a39fb84b51a704cd.rmeta --cap-lints=warn --crate-version 0.7.3` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0658]: use of unstable library feature 'io_into_inner_error_parts'
[INFO] [stdout]     --> src/bundles.rs:1209:52
[INFO] [stdout]      |
[INFO] [stdout] 1209 |     let mut file = file.into_inner().map_err(|e| e.into_error())
[INFO] [stdout]      |                                                    ^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #79704 <https://github.com/rust-lang/rust/issues/79704> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'io_into_inner_error_parts'
[INFO] [stdout]    --> src/packetframe.rs:423:22
[INFO] [stdout]     |
[INFO] [stdout] 423 |       .map_err(|e| e.into_error())?
[INFO] [stdout]     |                      ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #79704 <https://github.com/rust-lang/rust/issues/79704> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9e0a16e0776fd7c946f979daca892d80dc728e7f8cdb8170ad4aea00661c2f1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0a16e0776fd7c946f979daca892d80dc728e7f8cdb8170ad4aea00661c2f1b", kill_on_drop: false }`
[INFO] [stdout] 9e0a16e0776fd7c946f979daca892d80dc728e7f8cdb8170ad4aea00661c2f1b
