[INFO] fetching crate acm 0.1.4... [INFO] documenting acm-0.1.4 against 1.61.0 for beta-1.62-rustdoc-1 [INFO] extracting crate acm 0.1.4 into /workspace/builds/worker-64/source [INFO] validating manifest of crates.io crate acm 0.1.4 on toolchain 1.61.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate acm 0.1.4 [INFO] finished tweaking crates.io crate acm 0.1.4 [INFO] tweaked toml for crates.io crate acm 0.1.4 written to /workspace/builds/worker-64/source/Cargo.toml [INFO] crate crates.io crate acm 0.1.4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded numtoa v0.1.0 [INFO] [stderr] Downloaded num-bigint v0.3.2 [INFO] [stderr] Downloaded termion v1.5.2 [INFO] [stderr] Downloaded backtrace v0.3.20 [INFO] [stderr] Downloaded libc v0.2.54 [INFO] [stderr] Downloaded redox_termios v0.1.1 [INFO] [stderr] Downloaded atty v0.2.11 [INFO] [stderr] Downloaded unicode-width v0.1.5 [INFO] [stderr] Downloaded autocfg v0.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 10045b26d514458e31b82d4460fcdb573ec7317383bd46f4d64e996df8153771 [INFO] running `Command { std: "docker" "start" "-a" "10045b26d514458e31b82d4460fcdb573ec7317383bd46f4d64e996df8153771", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "10045b26d514458e31b82d4460fcdb573ec7317383bd46f4d64e996df8153771", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10045b26d514458e31b82d4460fcdb573ec7317383bd46f4d64e996df8153771", kill_on_drop: false }` [INFO] [stdout] 10045b26d514458e31b82d4460fcdb573ec7317383bd46f4d64e996df8153771 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 489a4840d74575861a90150df2418ec37f5989597d8540a4cd9efc1ef732ec89 [INFO] running `Command { std: "docker" "start" "-a" "489a4840d74575861a90150df2418ec37f5989597d8540a4cd9efc1ef732ec89", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.54 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-bigint v0.3.2 [INFO] [stderr] Compiling backtrace v0.3.20 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking acm v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Documenting acm v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/acm.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(trait_alias)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/acm.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(step_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/acm.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(trait_alias)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/acm.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(step_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/acm.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(step_trait)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stdout] error: Compilation failed, aborting rustdoc [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 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 compile `acm` due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not document `acm` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name acm src/acm.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6682ce243bba3692 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-79a5eae6e88b8181.rmeta --extern failure=/opt/rustwide/target/debug/deps/libfailure-57d40bcde9ea2245.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-2df8f330699f7b59.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-0332a0a98538df27.rmeta --cap-lints=warn --crate-version 0.1.4` (exit status: 1) [INFO] running `Command { std: "docker" "inspect" "489a4840d74575861a90150df2418ec37f5989597d8540a4cd9efc1ef732ec89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "489a4840d74575861a90150df2418ec37f5989597d8540a4cd9efc1ef732ec89", kill_on_drop: false }` [INFO] [stdout] 489a4840d74575861a90150df2418ec37f5989597d8540a4cd9efc1ef732ec89