[INFO] fetching crate rapx 0.6.252...
[INFO] testing rapx-0.6.252 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rapx 0.6.252 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rapx 0.6.252
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rapx 0.6.252
[INFO] tweaked toml for crates.io crate rapx 0.6.252 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rapx 0.6.252 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rapx 0.6.252 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc534b0e564e071bab206c9d0522dc4fd84c6409217887ec92943ba2d12b954d
[INFO] running `Command { std: "docker" "start" "-a" "bc534b0e564e071bab206c9d0522dc4fd84c6409217887ec92943ba2d12b954d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc534b0e564e071bab206c9d0522dc4fd84c6409217887ec92943ba2d12b954d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc534b0e564e071bab206c9d0522dc4fd84c6409217887ec92943ba2d12b954d", kill_on_drop: false }`
[INFO] [stdout] bc534b0e564e071bab206c9d0522dc4fd84c6409217887ec92943ba2d12b954d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5778964b9e4b68ce643128e49f8fb03307ea9e10b2b91207094e48eec0020e36
[INFO] running `Command { std: "docker" "start" "-a" "5778964b9e4b68ce643128e49f8fb03307ea9e10b2b91207094e48eec0020e36", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling bindgen v0.72.1
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling winnow v0.7.11
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling indexmap v2.12.0
[INFO] [stderr]    Compiling camino v1.1.9
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling is-terminal v0.4.16
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling toml_writer v1.0.4
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling colored v1.9.4
[INFO] [stderr]    Compiling fixedbitset v0.5.7
[INFO] [stderr]    Compiling annotate-snippets v0.11.5
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling fern v0.6.2
[INFO] [stderr]    Compiling colorful v0.2.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling petgraph v0.8.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling rust_intervals v0.3.0
[INFO] [stderr]    Compiling once_cell v1.21.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling intervals v2.1.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling toml_parser v1.0.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling toml v0.9.6
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling snafu-derive v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling snafu v0.7.5
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling cargo_metadata v0.18.1
[INFO] [stderr]    Compiling z3-sys v0.9.8
[INFO] [stderr]    Compiling safety-parser v0.4.1
[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/safety-parser-0.4.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![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 `safety-parser` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5778964b9e4b68ce643128e49f8fb03307ea9e10b2b91207094e48eec0020e36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5778964b9e4b68ce643128e49f8fb03307ea9e10b2b91207094e48eec0020e36", kill_on_drop: false }`
[INFO] [stdout] 5778964b9e4b68ce643128e49f8fb03307ea9e10b2b91207094e48eec0020e36
