[INFO] fetching crate bsalib 0.1.0...
[INFO] testing bsalib-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate bsalib 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate bsalib 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bsalib 0.1.0
[INFO] finished tweaking crates.io crate bsalib 0.1.0
[INFO] tweaked toml for crates.io crate bsalib 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generics v0.3.2
[INFO] [stderr]   Downloaded macro-attr-2018 v1.1.1
[INFO] [stderr]   Downloaded newtype-derive-2018 v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00656d23ba7d1c65684c37488c1e2c828674aa8305180e109b0376399e4a85a8
[INFO] running `Command { std: "docker" "start" "-a" "00656d23ba7d1c65684c37488c1e2c828674aa8305180e109b0376399e4a85a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00656d23ba7d1c65684c37488c1e2c828674aa8305180e109b0376399e4a85a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00656d23ba7d1c65684c37488c1e2c828674aa8305180e109b0376399e4a85a8", kill_on_drop: false }`
[INFO] [stdout] 00656d23ba7d1c65684c37488c1e2c828674aa8305180e109b0376399e4a85a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2f3e8bd6dc87bef3d57e925d152e77e474d344e5ca6398ea664839d4448875f
[INFO] running `Command { std: "docker" "start" "-a" "d2f3e8bd6dc87bef3d57e925d152e77e474d344e5ca6398ea664839d4448875f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling generics v0.3.2
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling macro-attr-2018 v1.1.1
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling newtype-derive-2018 v0.0.3
[INFO] [stderr]    Compiling libflate_lz77 v1.1.0
[INFO] [stderr]    Compiling libflate v1.1.2
[INFO] [stderr]    Compiling bytemuck_derive v1.0.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling enumflags2_derive v0.7.3
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling enumflags2 v0.7.3
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling lz4 v1.23.2
[INFO] [stderr]    Compiling bsalib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(associated_type_defaults, wrapping_int_impl, specialization, arbitrary_enum_discriminant)]
[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 `bsalib` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d2f3e8bd6dc87bef3d57e925d152e77e474d344e5ca6398ea664839d4448875f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2f3e8bd6dc87bef3d57e925d152e77e474d344e5ca6398ea664839d4448875f", kill_on_drop: false }`
[INFO] [stdout] d2f3e8bd6dc87bef3d57e925d152e77e474d344e5ca6398ea664839d4448875f