[INFO] fetching crate rs_ws281x 0.2.3...
[INFO] extracting crate rs_ws281x 0.2.3 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/rs_ws281x/0.2.3
[INFO] extracting crate rs_ws281x 0.2.3 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/rs_ws281x/0.2.3
[INFO] validating manifest of rs_ws281x-0.2.3 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rs_ws281x-0.2.3 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rs_ws281x-0.2.3
[INFO] finished frobbing rs_ws281x-0.2.3
[INFO] frobbed toml for rs_ws281x-0.2.3 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/rs_ws281x/0.2.3/Cargo.toml
[INFO] started frobbing rs_ws281x-0.2.3
[INFO] finished frobbing rs_ws281x-0.2.3
[INFO] frobbed toml for rs_ws281x-0.2.3 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/rs_ws281x/0.2.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking rs_ws281x-0.2.3 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-0/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/rs_ws281x/0.2.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a9d1603682ae7a5335e0036293e82814dfa19996803d0be0bd6136f184a45411
[INFO] running `"docker" "start" "-a" "a9d1603682ae7a5335e0036293e82814dfa19996803d0be0bd6136f184a45411"`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling clang-sys v0.23.0
[INFO] [stderr]    Compiling regex-syntax v0.6.7
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling log v0.4.6
[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] 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" "a9d1603682ae7a5335e0036293e82814dfa19996803d0be0bd6136f184a45411"`
[INFO] running `"docker" "rm" "-f" "a9d1603682ae7a5335e0036293e82814dfa19996803d0be0bd6136f184a45411"`
[INFO] [stdout] a9d1603682ae7a5335e0036293e82814dfa19996803d0be0bd6136f184a45411