[INFO] fetching crate espa 0.16.3...
[INFO] testing espa-0.16.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate espa 0.16.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate espa 0.16.3
[INFO] finished tweaking crates.io crate espa 0.16.3
[INFO] tweaked toml for crates.io crate espa 0.16.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate espa 0.16.3 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate espa 0.16.3 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f47455037e66dcd9e439dd49f04e03e3a69f3df04f33aec3a074084496a1ec6
[INFO] running `Command { std: "docker" "start" "-a" "6f47455037e66dcd9e439dd49f04e03e3a69f3df04f33aec3a074084496a1ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f47455037e66dcd9e439dd49f04e03e3a69f3df04f33aec3a074084496a1ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f47455037e66dcd9e439dd49f04e03e3a69f3df04f33aec3a074084496a1ec6", kill_on_drop: false }`
[INFO] [stdout] 6f47455037e66dcd9e439dd49f04e03e3a69f3df04f33aec3a074084496a1ec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9ec6a3b1c464846972dfd3468f1aedf969da3f2c464a7ce211c7a44e625b9ec
[INFO] running `Command { std: "docker" "start" "-a" "d9ec6a3b1c464846972dfd3468f1aedf969da3f2c464a7ce211c7a44e625b9ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.89
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.214
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling typeid v1.0.2
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling anstyle v1.0.9
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling anstream v0.6.17
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling macro-attr-2018 v3.0.1
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling nameof v1.2.2
[INFO] [stderr]    Compiling utf8-chars v3.0.5
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling flate2 v1.0.34
[INFO] [stderr]    Compiling indoc v2.0.5
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling document-features v0.2.10
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.85
[INFO] [stderr]    Compiling uuid v1.11.0
[INFO] [stderr]    Compiling iter-identify_first_last v0.2.3
[INFO] [stderr]    Compiling enum-derive-2018 v3.0.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/iter-identify_first_last-0.2.3/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(trusted_len))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iter-identify_first_last` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d9ec6a3b1c464846972dfd3468f1aedf969da3f2c464a7ce211c7a44e625b9ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9ec6a3b1c464846972dfd3468f1aedf969da3f2c464a7ce211c7a44e625b9ec", kill_on_drop: false }`
[INFO] [stdout] d9ec6a3b1c464846972dfd3468f1aedf969da3f2c464a7ce211c7a44e625b9ec