[INFO] fetching crate sfw-tools 0.4.0...
[INFO] documenting sfw-tools-0.4.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate sfw-tools 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sfw-tools 0.4.0 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] removed /workspace/builds/worker-0/source/rust-toolchain
[INFO] started tweaking crates.io crate sfw-tools 0.4.0
[INFO] finished tweaking crates.io crate sfw-tools 0.4.0
[INFO] tweaked toml for crates.io crate sfw-tools 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate sfw-tools 0.4.0 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 cargo-husky v1.5.0
[INFO] [stderr]   Downloaded syn v1.0.68
[INFO] [stderr]   Downloaded fp-core v0.1.9
[INFO] [stderr]   Downloaded seahorse v1.1.1
[INFO] [stderr]   Downloaded tailcall-impl v0.1.6
[INFO] [stderr]   Downloaded tailcall v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7e16b6a4d03d958c54e37c77b59097a009cca6080cac0dddd5e2ca530e46654
[INFO] running `Command { std: "docker" "start" "-a" "e7e16b6a4d03d958c54e37c77b59097a009cca6080cac0dddd5e2ca530e46654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7e16b6a4d03d958c54e37c77b59097a009cca6080cac0dddd5e2ca530e46654", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e16b6a4d03d958c54e37c77b59097a009cca6080cac0dddd5e2ca530e46654", kill_on_drop: false }`
[INFO] [stdout] e7e16b6a4d03d958c54e37c77b59097a009cca6080cac0dddd5e2ca530e46654
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 08ebd9062abbe172f76e81e0e7ab148ba1dc014c73ec5bd46e1f5baf17ea74cf
[INFO] running `Command { std: "docker" "start" "-a" "08ebd9062abbe172f76e81e0e7ab148ba1dc014c73ec5bd46e1f5baf17ea74cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking peeking_take_while v0.1.2
[INFO] [stderr]     Checking seahorse v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking fp-core v0.1.9
[INFO] [stderr]    Compiling tailcall-impl v0.1.6
[INFO] [stderr]     Checking tailcall v0.1.6
[INFO] [stderr]     Checking sfw-tools v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting sfw-tools v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | #![feature(try_trait)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `try_trait`
[INFO] [stdout]    --> src/lib.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | #![feature(try_trait)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::option::NoneError`
[INFO] [stdout]  --> src/error.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::option::NoneError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^ no `NoneError` in `option`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sfw-tools` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `sfw-tools`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name sfwtools src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=dd37e305c77300d5 -L dependency=/opt/rustwide/target/debug/deps --extern fp_core=/opt/rustwide/target/debug/deps/libfp_core-a3accd4f5f320faf.rmeta --extern peeking_take_while=/opt/rustwide/target/debug/deps/libpeeking_take_while-280044063648072e.rmeta --extern seahorse=/opt/rustwide/target/debug/deps/libseahorse-29300780b2064599.rmeta --extern tailcall=/opt/rustwide/target/debug/deps/libtailcall-b953346abad6fa5c.rmeta --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "08ebd9062abbe172f76e81e0e7ab148ba1dc014c73ec5bd46e1f5baf17ea74cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08ebd9062abbe172f76e81e0e7ab148ba1dc014c73ec5bd46e1f5baf17ea74cf", kill_on_drop: false }`
[INFO] [stdout] 08ebd9062abbe172f76e81e0e7ab148ba1dc014c73ec5bd46e1f5baf17ea74cf