[INFO] fetching crate dmenu_drun 0.1.4...
[INFO] testing dmenu_drun-0.1.4 against 1.60.0 for beta-1.61-1
[INFO] extracting crate dmenu_drun 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate dmenu_drun 0.1.4 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 dmenu_drun 0.1.4
[INFO] finished tweaking crates.io crate dmenu_drun 0.1.4
[INFO] tweaked toml for crates.io crate dmenu_drun 0.1.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate dmenu_drun 0.1.4 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]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.2.3
[INFO] [stderr]   Downloaded fork v0.1.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 1505e6b6c2e5b24551d755e48014ae6c7a7529966b826aef35067fd64dd638d0
[INFO] running `Command { std: "docker" "start" "-a" "1505e6b6c2e5b24551d755e48014ae6c7a7529966b826aef35067fd64dd638d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1505e6b6c2e5b24551d755e48014ae6c7a7529966b826aef35067fd64dd638d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1505e6b6c2e5b24551d755e48014ae6c7a7529966b826aef35067fd64dd638d0", kill_on_drop: false }`
[INFO] [stdout] 1505e6b6c2e5b24551d755e48014ae6c7a7529966b826aef35067fd64dd638d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9b353c555711815d4e6c7b29ccd02aef0bc56416f031af89672f13e93dc2b0e8
[INFO] running `Command { std: "docker" "start" "-a" "9b353c555711815d4e6c7b29ccd02aef0bc56416f031af89672f13e93dc2b0e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling fork v0.1.18
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling dmenu_drun v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(option_result_contains)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(hash_drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dmenu_drun` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "9b353c555711815d4e6c7b29ccd02aef0bc56416f031af89672f13e93dc2b0e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b353c555711815d4e6c7b29ccd02aef0bc56416f031af89672f13e93dc2b0e8", kill_on_drop: false }`
[INFO] [stdout] 9b353c555711815d4e6c7b29ccd02aef0bc56416f031af89672f13e93dc2b0e8