[INFO] fetching crate varurl 0.1.26...
[INFO] testing varurl-0.1.26 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate varurl 0.1.26 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate varurl 0.1.26
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate varurl 0.1.26
[INFO] tweaked toml for crates.io crate varurl 0.1.26 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate varurl 0.1.26 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 53 packages to latest compatible versions
[INFO] [stderr]       Adding daachorse v1.0.1 (available: v2.1.1)
[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] bf52b3726631d5b77321a3cce77d964a7101ccc68b6d80f181ef59f76ae5f8c2
[INFO] running `Command { std: "docker" "start" "-a" "bf52b3726631d5b77321a3cce77d964a7101ccc68b6d80f181ef59f76ae5f8c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf52b3726631d5b77321a3cce77d964a7101ccc68b6d80f181ef59f76ae5f8c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf52b3726631d5b77321a3cce77d964a7101ccc68b6d80f181ef59f76ae5f8c2", kill_on_drop: false }`
[INFO] [stdout] bf52b3726631d5b77321a3cce77d964a7101ccc68b6d80f181ef59f76ae5f8c2
[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] 21e3d86b6ee9e89f6e50e614590f8ff5cae1d62171af14b456e275471c837738
[INFO] running `Command { std: "docker" "start" "-a" "21e3d86b6ee9e89f6e50e614590f8ff5cae1d62171af14b456e275471c837738", kill_on_drop: false }`
[INFO] [stderr]    Compiling daachorse v1.0.1
[INFO] [stderr]    Compiling aok v0.1.18
[INFO] [stderr]    Compiling xerr v0.1.16
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling pos_lines v0.1.10
[INFO] [stderr]    Compiling mdli v0.1.28
[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/mdli-0.1.28/src/lib.rs:154:18
[INFO] [stdout]     |
[INFO] [stdout] 154 |               && let Some((_, i)) = remain.next()
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/mdli-0.1.28/src/lib.rs:215:20
[INFO] [stdout]     |
[INFO] [stdout] 215 |                 && let Some(last) = remain[..p].chars().last()
[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/mdli-0.1.28/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 `mdli` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "21e3d86b6ee9e89f6e50e614590f8ff5cae1d62171af14b456e275471c837738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21e3d86b6ee9e89f6e50e614590f8ff5cae1d62171af14b456e275471c837738", kill_on_drop: false }`
[INFO] [stdout] 21e3d86b6ee9e89f6e50e614590f8ff5cae1d62171af14b456e275471c837738
