[INFO] fetching crate argon 0.1.0...
[INFO] documenting argon-0.1.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate argon 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate argon 0.1.0 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 argon 0.1.0
[INFO] finished tweaking crates.io crate argon 0.1.0
[INFO] tweaked toml for crates.io crate argon 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] e0840bc43c419c721670592c4861b16cdb16e94b060db1439b600f9c29717b94
[INFO] running `Command { std: "docker" "start" "-a" "e0840bc43c419c721670592c4861b16cdb16e94b060db1439b600f9c29717b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0840bc43c419c721670592c4861b16cdb16e94b060db1439b600f9c29717b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0840bc43c419c721670592c4861b16cdb16e94b060db1439b600f9c29717b94", kill_on_drop: false }`
[INFO] [stdout] e0840bc43c419c721670592c4861b16cdb16e94b060db1439b600f9c29717b94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] f61f7a6fcb421b82bca31b3838a695fb7a48902afed8d2af3255b150035917ec
[INFO] running `Command { std: "docker" "start" "-a" "f61f7a6fcb421b82bca31b3838a695fb7a48902afed8d2af3255b150035917ec", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking lalrpop-util v0.15.2
[INFO] [stderr]     Checking nan-preserving-float v0.1.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking ena v0.9.3
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking parity-wasm v0.27.6
[INFO] [stderr]  Documenting argon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: allow(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]   --> src/grammar.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[allow(rust_2018_idioms)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(crate_visibility_modifier)]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(box_patterns)]
[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:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `argon`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name argon 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 derive_new=/opt/rustwide/target/debug/deps/libderive_new-b5b2f5dae4a5037f.so --extern ena=/opt/rustwide/target/debug/deps/libena-99219dd7ef12da19.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-a52087cf878c0c78.rmeta --extern lalrpop_util=/opt/rustwide/target/debug/deps/liblalrpop_util-f2f85f845f8004a5.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-acd7d23482fe8b54.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern nan_preserving_float=/opt/rustwide/target/debug/deps/libnan_preserving_float-21b43560bab52a2a.rmeta --extern parity_wasm=/opt/rustwide/target/debug/deps/libparity_wasm-b4ce9315cf2e7011.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-46bf5b535d6b6b09.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-e6892625d50fba33.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f61f7a6fcb421b82bca31b3838a695fb7a48902afed8d2af3255b150035917ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f61f7a6fcb421b82bca31b3838a695fb7a48902afed8d2af3255b150035917ec", kill_on_drop: false }`
[INFO] [stdout] f61f7a6fcb421b82bca31b3838a695fb7a48902afed8d2af3255b150035917ec
