[INFO] cloning repository https://github.com/onixie/aocrust2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onixie/aocrust2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonixie%2Faocrust2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonixie%2Faocrust2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c14f7472e2fb58b4dcfe15a765e1ae769fecdaaa
[INFO] testing onixie/aocrust2023 against 1.91.0 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonixie%2Faocrust2023" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/onixie/aocrust2023
[INFO] finished tweaking git repo https://github.com/onixie/aocrust2023
[INFO] tweaked toml for git repo https://github.com/onixie/aocrust2023 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/onixie/aocrust2023 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/onixie/aocrust2023 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom-test-helpers v6.1.3
[INFO] [stderr]   Downloaded wyz v0.2.0
[INFO] [stderr]   Downloaded funty v1.1.0
[INFO] [stderr]   Downloaded nom v6.2.2
[INFO] [stderr]   Downloaded lexical-core v0.7.6
[INFO] [stderr]   Downloaded radium v0.5.3
[INFO] [stderr]   Downloaded bitvec v0.19.6
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f050114a401568335ee8ca90cb58179b8109b657d62f3a7c7745917bbd52199
[INFO] running `Command { std: "docker" "start" "-a" "5f050114a401568335ee8ca90cb58179b8109b657d62f3a7c7745917bbd52199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f050114a401568335ee8ca90cb58179b8109b657d62f3a7c7745917bbd52199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f050114a401568335ee8ca90cb58179b8109b657d62f3a7c7745917bbd52199", kill_on_drop: false }`
[INFO] [stdout] 5f050114a401568335ee8ca90cb58179b8109b657d62f3a7c7745917bbd52199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86ca372668f22ab804d79fb150599d18ee9e680174531874dc3fa53b8f915359
[INFO] running `Command { std: "docker" "start" "-a" "86ca372668f22ab804d79fb150599d18ee9e680174531874dc3fa53b8f915359", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nom-7.1.3/src/lib.rs:376:33
[INFO] [stdout]     |
[INFO] [stdout] 376 | #![cfg_attr(feature = "docsrs", feature(doc_cfg))]
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nom-7.1.3/src/lib.rs:377:33
[INFO] [stdout]     |
[INFO] [stdout] 377 | #![cfg_attr(feature = "docsrs", feature(extended_key_value_attributes))]
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]     |
[INFO] [stdout]     = help: the feature `extended_key_value_attributes` has been stable since `1.54.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nom` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "86ca372668f22ab804d79fb150599d18ee9e680174531874dc3fa53b8f915359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ca372668f22ab804d79fb150599d18ee9e680174531874dc3fa53b8f915359", kill_on_drop: false }`
[INFO] [stdout] 86ca372668f22ab804d79fb150599d18ee9e680174531874dc3fa53b8f915359