[INFO] fetching crate refresh_v 0.1.10...
[INFO] testing refresh_v-0.1.10 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate refresh_v 0.1.10 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate refresh_v 0.1.10
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate refresh_v 0.1.10
[INFO] tweaked toml for crates.io crate refresh_v 0.1.10 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate refresh_v 0.1.10 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 250 packages to latest compatible versions
[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] 2631a942957e9f384b4d46df474b291ccec125c29797fe013930c7a00f62cd4d
[INFO] running `Command { std: "docker" "start" "-a" "2631a942957e9f384b4d46df474b291ccec125c29797fe013930c7a00f62cd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2631a942957e9f384b4d46df474b291ccec125c29797fe013930c7a00f62cd4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2631a942957e9f384b4d46df474b291ccec125c29797fe013930c7a00f62cd4d", kill_on_drop: false }`
[INFO] [stdout] 2631a942957e9f384b4d46df474b291ccec125c29797fe013930c7a00f62cd4d
[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] 56f180749ddc083215ee65ff14627fe527a738853f72bb431c3b25daff752b13
[INFO] running `Command { std: "docker" "start" "-a" "56f180749ddc083215ee65ff14627fe527a738853f72bb431c3b25daff752b13", kill_on_drop: false }`
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling rustls-pki-types v1.12.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling rustls v0.23.32
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling static_init_macro v1.0.4
[INFO] [stderr]    Compiling compression-core v0.4.29
[INFO] [stderr]    Compiling aok v0.1.17
[INFO] [stderr]    Compiling static_init v1.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling icu_normalizer v2.0.0
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling xerr v0.1.16
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]    Compiling const-str v0.6.4
[INFO] [stderr]    Compiling citer v0.1.12
[INFO] [stderr]    Compiling kanal v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling webpki-roots v1.0.2
[INFO] [stderr]    Compiling rustls-native-certs v0.8.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling waiting v0.1.5
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling genv v0.1.16
[INFO] [stderr]    Compiling openssl v0.10.73
[INFO] [stderr]    Compiling native-tls v0.2.14
[INFO] [stderr]    Compiling tokio-util v0.7.16
[INFO] [stderr]    Compiling tower v0.5.2
[INFO] [stderr]    Compiling tower-http v0.6.6
[INFO] [stderr]    Compiling h2 v0.4.12
[INFO] [stderr]    Compiling rustls-webpki v0.103.6
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling compression-codecs v0.4.31
[INFO] [stderr]    Compiling async-compression v0.4.32
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v1.7.0
[INFO] [stderr]    Compiling tokio-rustls v0.26.4
[INFO] [stderr]    Compiling hyper-util v0.1.17
[INFO] [stderr]    Compiling hyper-rustls v0.27.7
[INFO] [stderr]    Compiling hyper-tls v0.6.0
[INFO] [stderr]    Compiling reqwest v0.12.23
[INFO] [stderr]    Compiling header_map v0.1.4
[INFO] [stderr]    Compiling ireq v0.1.31
[INFO] [stderr]    Compiling mreq v0.1.17
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mreq-0.1.17/src/lib.rs:129:31
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 let host = if let Some(p) = host_path.find('/')
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/mreq-0.1.17/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[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] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mreq` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "56f180749ddc083215ee65ff14627fe527a738853f72bb431c3b25daff752b13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f180749ddc083215ee65ff14627fe527a738853f72bb431c3b25daff752b13", kill_on_drop: false }`
[INFO] [stdout] 56f180749ddc083215ee65ff14627fe527a738853f72bb431c3b25daff752b13
