[INFO] fetching crate cosring 0.1.2...
[INFO] testing cosring-0.1.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate cosring 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate cosring 0.1.2
[INFO] finished tweaking crates.io crate cosring 0.1.2
[INFO] tweaked toml for crates.io crate cosring 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cosring 0.1.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cosring 0.1.2 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v2.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1348fc6e2b43470670855855187d652f22a0ff9be86d88870912fba186804967
[INFO] running `Command { std: "docker" "start" "-a" "1348fc6e2b43470670855855187d652f22a0ff9be86d88870912fba186804967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1348fc6e2b43470670855855187d652f22a0ff9be86d88870912fba186804967", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1348fc6e2b43470670855855187d652f22a0ff9be86d88870912fba186804967", kill_on_drop: false }`
[INFO] [stdout] 1348fc6e2b43470670855855187d652f22a0ff9be86d88870912fba186804967
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f76e6060e5e53618ce1a627831af080a34f1c404a4238c338465355b7f6ae19
[INFO] running `Command { std: "docker" "start" "-a" "9f76e6060e5e53618ce1a627831af080a34f1c404a4238c338465355b7f6ae19", kill_on_drop: false }`
[INFO] [stderr] error: rustc 1.90.0 is not supported by the following package:
[INFO] [stderr]   cosring@0.1.2 requires rustc 1.91.0
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "9f76e6060e5e53618ce1a627831af080a34f1c404a4238c338465355b7f6ae19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f76e6060e5e53618ce1a627831af080a34f1c404a4238c338465355b7f6ae19", kill_on_drop: false }`
[INFO] [stdout] 9f76e6060e5e53618ce1a627831af080a34f1c404a4238c338465355b7f6ae19