[INFO] crate rs_ws281x 0.2.3 is already in cache
[INFO] testing rs_ws281x-0.2.3 against 1.38.0 for beta-1.39-1
[INFO] extracting crate rs_ws281x 0.2.3 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate rs_ws281x 0.2.3 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rs_ws281x 0.2.3
[INFO] finished tweaking crates.io crate rs_ws281x 0.2.3
[INFO] tweaked toml for crates.io crate rs_ws281x 0.2.3 written to work/builds/worker-3/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] fc2e62bfce4505109b19b7c68a0982dcd73e8afa86fee834f54f5ed9f2a537a0
[INFO] running `"docker" "start" "-a" "fc2e62bfce4505109b19b7c68a0982dcd73e8afa86fee834f54f5ed9f2a537a0"`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.37.4
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.23.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr] error[E0463]: can't find crate for `std`
[INFO] [stderr]   |
[INFO] [stderr]   = note: the `arm-unknown-linux-gnueabihf` target may not be installed
[INFO] [stderr] 
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `serde`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "fc2e62bfce4505109b19b7c68a0982dcd73e8afa86fee834f54f5ed9f2a537a0"`
[INFO] running `"docker" "rm" "-f" "fc2e62bfce4505109b19b7c68a0982dcd73e8afa86fee834f54f5ed9f2a537a0"`
[INFO] [stdout] fc2e62bfce4505109b19b7c68a0982dcd73e8afa86fee834f54f5ed9f2a537a0