[INFO] fetching crate mco-rpc 0.1.8...
[INFO] testing mco-rpc-0.1.8 against beta-2026-01-20 for beta-1.94-1
[INFO] extracting crate mco-rpc 0.1.8 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mco-rpc 0.1.8
[INFO] finished tweaking crates.io crate mco-rpc 0.1.8
[INFO] tweaked toml for crates.io crate mco-rpc 0.1.8 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mco-rpc 0.1.8 on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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-2026-01-20" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 90 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v3.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 852833d5b68108ea6c17a0290d3dcba3c3e9ce0880c015d9e157a5db0c26289a
[INFO] running `Command { std: "docker" "start" "-a" "852833d5b68108ea6c17a0290d3dcba3c3e9ce0880c015d9e157a5db0c26289a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "852833d5b68108ea6c17a0290d3dcba3c3e9ce0880c015d9e157a5db0c26289a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "852833d5b68108ea6c17a0290d3dcba3c3e9ce0880c015d9e157a5db0c26289a", kill_on_drop: false }`
[INFO] [stdout] 852833d5b68108ea6c17a0290d3dcba3c3e9ce0880c015d9e157a5db0c26289a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 834e88097919b37ec1195165bd970bda02799f33d837a3d44634f652b460f9c7
[INFO] running `Command { std: "docker" "start" "-a" "834e88097919b37ec1195165bd970bda02799f33d837a3d44634f652b460f9c7", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling instant v0.1.13
[INFO] [stderr]    Compiling generator v0.7.5
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling time v0.3.46
[INFO] [stderr]    Compiling nix v0.27.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling mco v0.1.48
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/mco-0.1.48/src/yield_now.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let r = resource as &dyn EventSource as *const _ as *mut _;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]    |             ...so that the type `T` will meet its required lifetime bounds
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn yield_with<T: EventSource + 'static>(resource: &T) {
[INFO] [stdout]    |                                  +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mco` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "834e88097919b37ec1195165bd970bda02799f33d837a3d44634f652b460f9c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "834e88097919b37ec1195165bd970bda02799f33d837a3d44634f652b460f9c7", kill_on_drop: false }`
[INFO] [stdout] 834e88097919b37ec1195165bd970bda02799f33d837a3d44634f652b460f9c7
