[INFO] fetching crate nightfury-cli 0.1.0...
[INFO] checking nightfury-cli-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate nightfury-cli 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate nightfury-cli 0.1.0
[INFO] finished tweaking crates.io crate nightfury-cli 0.1.0
[INFO] tweaked toml for crates.io crate nightfury-cli 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nightfury-cli 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nightfury-cli 0.1.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-width v0.1.7
[INFO] [stderr]   Downloaded clap_derive v4.5.40
[INFO] [stderr]   Downloaded ebnf v0.1.4
[INFO] [stderr]   Downloaded html-escape v0.2.13
[INFO] [stderr]   Downloaded serde-binary v0.5.0
[INFO] [stderr]   Downloaded nightfury v0.3.0
[INFO] [stderr]   Downloaded parse-hyperlinks v0.23.4
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded debug_print v1.0.0
[INFO] [stderr]   Downloaded binary-stream v3.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 532860c13e3662202e860feb08eeffdfddd8752b837b247c9be57de080424477
[INFO] running `Command { std: "docker" "start" "-a" "532860c13e3662202e860feb08eeffdfddd8752b837b247c9be57de080424477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "532860c13e3662202e860feb08eeffdfddd8752b837b247c9be57de080424477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "532860c13e3662202e860feb08eeffdfddd8752b837b247c9be57de080424477", kill_on_drop: false }`
[INFO] [stdout] 532860c13e3662202e860feb08eeffdfddd8752b837b247c9be57de080424477
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ea8d364a559e31e76385e0302d6d7f958ac47052a19e83067cd66446431e58f
[INFO] running `Command { std: "docker" "start" "-a" "0ea8d364a559e31e76385e0302d6d7f958ac47052a19e83067cd66446431e58f", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking unicode-width v0.2.0
[INFO] [stderr]     Checking debug_print v1.0.0
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking parse-hyperlinks v0.23.4
[INFO] [stderr]     Checking binary-stream v3.4.0
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking serde-binary v0.5.0
[INFO] [stderr]     Checking ebnf v0.1.4
[INFO] [stderr]     Checking nightfury v0.3.0
[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/nightfury-0.3.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `let_chains` has been stable since `1.88.0` and no longer requires an attribute to enable
[INFO] [stdout]   = help: the feature `if_let_guard` has been stable since `1.95.0` 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 `nightfury` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0ea8d364a559e31e76385e0302d6d7f958ac47052a19e83067cd66446431e58f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ea8d364a559e31e76385e0302d6d7f958ac47052a19e83067cd66446431e58f", kill_on_drop: false }`
[INFO] [stdout] 0ea8d364a559e31e76385e0302d6d7f958ac47052a19e83067cd66446431e58f