[INFO] fetching crate cv 0.6.0...
[INFO] testing cv-0.6.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate cv 0.6.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cv 0.6.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cv 0.6.0
[INFO] finished tweaking crates.io crate cv 0.6.0
[INFO] tweaked toml for crates.io crate cv 0.6.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f55e1a8f4cb09d1f7f8c576488071908de8cbf6f9388eef4fcaf6c41078ac0a
[INFO] running `Command { std: "docker" "start" "-a" "3f55e1a8f4cb09d1f7f8c576488071908de8cbf6f9388eef4fcaf6c41078ac0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f55e1a8f4cb09d1f7f8c576488071908de8cbf6f9388eef4fcaf6c41078ac0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f55e1a8f4cb09d1f7f8c576488071908de8cbf6f9388eef4fcaf6c41078ac0a", kill_on_drop: false }`
[INFO] [stdout] 3f55e1a8f4cb09d1f7f8c576488071908de8cbf6f9388eef4fcaf6c41078ac0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f4584253d951186de9e8b8002c99d0a15e88ea63ae201c257857469eb448b36
[INFO] running `Command { std: "docker" "start" "-a" "4f4584253d951186de9e8b8002c99d0a15e88ea63ae201c257857469eb448b36", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling sample-consensus v1.0.2
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling primal-estimate v0.3.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling space v0.10.3
[INFO] [stderr]    Compiling bytemuck v1.9.1
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling primal-bit v0.3.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling bitarray v0.2.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitarray-0.2.6/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(min_const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `min_const_generics` has been stable since 1.51.0 and no longer requires an attribute to enable
[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 `bitarray` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4f4584253d951186de9e8b8002c99d0a15e88ea63ae201c257857469eb448b36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f4584253d951186de9e8b8002c99d0a15e88ea63ae201c257857469eb448b36", kill_on_drop: false }`
[INFO] [stdout] 4f4584253d951186de9e8b8002c99d0a15e88ea63ae201c257857469eb448b36