[INFO] fetching crate imcon 0.1.1...
[INFO] testing imcon-0.1.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate imcon 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate imcon 0.1.1 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 imcon 0.1.1
[INFO] finished tweaking crates.io crate imcon 0.1.1
[INFO] tweaked toml for crates.io crate imcon 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate imcon 0.1.1 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded packed_simd_2 v0.3.7
[INFO] [stderr]   Downloaded utf16string v0.2.0
[INFO] [stderr]   Downloaded kmeans v0.2.0
[INFO] [stderr]   Downloaded libheif-sys v1.12.0
[INFO] [stderr]   Downloaded libheif-rs v0.15.0
[INFO] [stderr]   Downloaded pdfium-render v0.5.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0e42aa43c4c427a233c19f0b1262f861be50dae27d471e9c8cb5de98ec784b55
[INFO] running `Command { std: "docker" "start" "-a" "0e42aa43c4c427a233c19f0b1262f861be50dae27d471e9c8cb5de98ec784b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e42aa43c4c427a233c19f0b1262f861be50dae27d471e9c8cb5de98ec784b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e42aa43c4c427a233c19f0b1262f861be50dae27d471e9c8cb5de98ec784b55", kill_on_drop: false }`
[INFO] [stdout] 0e42aa43c4c427a233c19f0b1262f861be50dae27d471e9c8cb5de98ec784b55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 7072e9e64a2d77237b9c96f5419f3ec926791f87012ef8bfaf71b1cc48e4cd59
[INFO] running `Command { std: "docker" "start" "-a" "7072e9e64a2d77237b9c96f5419f3ec926791f87012ef8bfaf71b1cc48e4cd59", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling libheif-sys v1.12.0
[INFO] [stderr]    Compiling lebe v0.5.1
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling packed_simd_2 v0.3.7
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.8.0
[INFO] [stderr]    Compiling imcon v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling utf16string v0.2.0
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling clang-sys v1.3.1
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling gif v0.11.3
[INFO] [stderr]    Compiling spin v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling png v0.17.5
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling which v4.2.5
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling nanorand v0.7.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling clap v3.1.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling flate2 v1.0.22
[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_2-0.3.7/src/lib.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / #![feature(
[INFO] [stdout] 215 | |     adt_const_params,
[INFO] [stdout] 216 | |     repr_simd,
[INFO] [stdout] 217 | |     rustc_attrs,
[INFO] [stdout] ...   |
[INFO] [stdout] 226 | |     custom_inner_attributes,
[INFO] [stdout] 227 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling tiff v0.7.1
[INFO] [stderr]    Compiling jpeg-decoder v0.2.2
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling enumn v0.1.3
[INFO] [stderr]    Compiling libheif-rs v0.15.0
[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_2` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7072e9e64a2d77237b9c96f5419f3ec926791f87012ef8bfaf71b1cc48e4cd59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7072e9e64a2d77237b9c96f5419f3ec926791f87012ef8bfaf71b1cc48e4cd59", kill_on_drop: false }`
[INFO] [stdout] 7072e9e64a2d77237b9c96f5419f3ec926791f87012ef8bfaf71b1cc48e4cd59