[INFO] crate know-thy-shell 0.1.12 is already in cache
[INFO] testing know-thy-shell-0.1.12 against 1.45.2 for beta-1.46-1
[INFO] extracting crate know-thy-shell 0.1.12 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate know-thy-shell 0.1.12 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate know-thy-shell 0.1.12
[INFO] finished tweaking crates.io crate know-thy-shell 0.1.12
[INFO] tweaked toml for crates.io crate know-thy-shell 0.1.12 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate know-thy-shell 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8380c63c46db046bb3a34ca88c3f6f61d0b1f9b2109d2c6be2b9c99ecab87c91
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8380c63c46db046bb3a34ca88c3f6f61d0b1f9b2109d2c6be2b9c99ecab87c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8380c63c46db046bb3a34ca88c3f6f61d0b1f9b2109d2c6be2b9c99ecab87c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8380c63c46db046bb3a34ca88c3f6f61d0b1f9b2109d2c6be2b9c99ecab87c91", kill_on_drop: false }`
[INFO] [stdout] 8380c63c46db046bb3a34ca88c3f6f61d0b1f9b2109d2c6be2b9c99ecab87c91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0322d97dcd675ecb1c38b07b8eb7a4c8e8bdd586f815cf94bf8b6bb93e21588f
[INFO] running `Command { std: "docker" "start" "-a" "0322d97dcd675ecb1c38b07b8eb7a4c8e8bdd586f815cf94bf8b6bb93e21588f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling spin v0.5.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling integer-encoding v1.0.7
[INFO] [stderr]    Compiling try_from v0.2.2
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling parquet v0.14.0
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling flatbuffers v0.5.0
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling regex-automata v0.1.7
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling snap v0.2.5
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling ordered-float v0.5.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
[INFO] [stdout]     |
[INFO] [stdout] 202 | / #![feature(
[INFO] [stdout] 203 | |     repr_simd,
[INFO] [stdout] 204 | |     const_fn,
[INFO] [stdout] 205 | |     platform_intrinsics,
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |     custom_inner_attributes
[INFO] [stdout] 216 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling thrift v0.0.4
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling parquet-format v2.5.0
[INFO] [stderr]    Compiling sqlparser v0.2.4
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling rustyline v4.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling bstr v0.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling zstd-sys v1.4.10+zstd.1.4.0
[INFO] [stderr]    Compiling lz4-sys v1.8.3
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling libsqlite3-sys v0.10.0
[INFO] [stderr]    Compiling flate2 v1.0.9
[INFO] [stderr]    Compiling backtrace v0.3.32
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling skeptic v0.13.4
[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 `packed_simd`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0322d97dcd675ecb1c38b07b8eb7a4c8e8bdd586f815cf94bf8b6bb93e21588f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0322d97dcd675ecb1c38b07b8eb7a4c8e8bdd586f815cf94bf8b6bb93e21588f", kill_on_drop: false }`
[INFO] [stdout] 0322d97dcd675ecb1c38b07b8eb7a4c8e8bdd586f815cf94bf8b6bb93e21588f