[INFO] fetching crate rustld 0.1.55...
[INFO] testing rustld-0.1.55 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rustld 0.1.55 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rustld 0.1.55
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rustld 0.1.55
[INFO] tweaked toml for crates.io crate rustld 0.1.55 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustld 0.1.55 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 rustld 0.1.55 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bc00386d0815bd8f2c71bb2b8ddbcf1cbd32bf8fba8b71e8250920e0111fc1b2
[INFO] running `Command { std: "docker" "start" "-a" "bc00386d0815bd8f2c71bb2b8ddbcf1cbd32bf8fba8b71e8250920e0111fc1b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc00386d0815bd8f2c71bb2b8ddbcf1cbd32bf8fba8b71e8250920e0111fc1b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc00386d0815bd8f2c71bb2b8ddbcf1cbd32bf8fba8b71e8250920e0111fc1b2", kill_on_drop: false }`
[INFO] [stdout] bc00386d0815bd8f2c71bb2b8ddbcf1cbd32bf8fba8b71e8250920e0111fc1b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 8af571e4e56313411be9cc7472dae38aa54812dc34169eafb0d1b1b866ccda8f
[INFO] running `Command { std: "docker" "start" "-a" "8af571e4e56313411be9cc7472dae38aa54812dc34169eafb0d1b1b866ccda8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.23
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling smartstring v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling syn v2.0.115
[INFO] [stderr]    Compiling phf_macros v0.13.1
[INFO] [stderr]    Compiling phf v0.13.1
[INFO] [stderr]    Compiling rustld v0.1.55 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:160:1
[INFO] [stdout]     |
[INFO] [stdout] 160 | #![feature(impl_trait_in_assoc_type)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustld` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8af571e4e56313411be9cc7472dae38aa54812dc34169eafb0d1b1b866ccda8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8af571e4e56313411be9cc7472dae38aa54812dc34169eafb0d1b1b866ccda8f", kill_on_drop: false }`
[INFO] [stdout] 8af571e4e56313411be9cc7472dae38aa54812dc34169eafb0d1b1b866ccda8f
