[INFO] fetching crate lsts 0.0.5...
[INFO] testing lsts-0.0.5 against 1.60.0 for beta-1.61-1
[INFO] extracting crate lsts 0.0.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate lsts 0.0.5 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lsts 0.0.5
[INFO] finished tweaking crates.io crate lsts 0.0.5
[INFO] tweaked toml for crates.io crate lsts 0.0.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate lsts 0.0.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb582df6039e57cc39c1e151c65c04b1ac6208eff9998b9e515ab23a1cd4ca93
[INFO] running `Command { std: "docker" "start" "-a" "eb582df6039e57cc39c1e151c65c04b1ac6208eff9998b9e515ab23a1cd4ca93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb582df6039e57cc39c1e151c65c04b1ac6208eff9998b9e515ab23a1cd4ca93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb582df6039e57cc39c1e151c65c04b1ac6208eff9998b9e515ab23a1cd4ca93", kill_on_drop: false }`
[INFO] [stdout] eb582df6039e57cc39c1e151c65c04b1ac6208eff9998b9e515ab23a1cd4ca93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a7e04bbb4f02b77acad2f4133182d82f69dd087952be781ba8358c8920f1ca9
[INFO] running `Command { std: "docker" "start" "-a" "7a7e04bbb4f02b77acad2f4133182d82f69dd087952be781ba8358c8920f1ca9", kill_on_drop: false }`
[INFO] [stderr]    Compiling lsts v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lsts` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7a7e04bbb4f02b77acad2f4133182d82f69dd087952be781ba8358c8920f1ca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a7e04bbb4f02b77acad2f4133182d82f69dd087952be781ba8358c8920f1ca9", kill_on_drop: false }`
[INFO] [stdout] 7a7e04bbb4f02b77acad2f4133182d82f69dd087952be781ba8358c8920f1ca9