Dec 19 21:23:50.360 INFO checking VratnamT/firecracker against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:23:50.361 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/VratnamT/firecracker:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:23:50.804 INFO [stdout] 15d68ddffa60ac79f508537343b25055408a573d43b84495d26eb527f3aea67c
Dec 19 21:23:50.810 INFO running `"docker" "start" "-a" "15d68ddffa60ac79f508537343b25055408a573d43b84495d26eb527f3aea67c"`
Dec 19 21:23:52.820 INFO [stderr]    Compiling cfg-if v0.1.6
Dec 19 21:23:52.820 INFO [stderr]    Compiling libc v0.2.44
Dec 19 21:23:52.832 INFO [stderr]    Compiling version_check v0.1.5
Dec 19 21:23:52.832 INFO [stderr]    Compiling semver-parser v0.7.0
Dec 19 21:23:52.832 INFO [stderr]    Compiling rustc-serialize v0.3.24
Dec 19 21:23:52.832 INFO [stderr]    Compiling unicode-xid v0.0.4
Dec 19 21:23:52.832 INFO [stderr]    Compiling num-traits v0.2.6
Dec 19 21:23:52.832 INFO [stderr]    Compiling quote v0.3.15
Dec 19 21:23:53.396 INFO [stderr]    Compiling term v0.4.6
Dec 19 21:23:54.236 INFO [stderr]    Compiling unicode-xid v0.0.3
Dec 19 21:23:58.181 INFO [stderr]    Compiling ucd-util v0.1.3
Dec 19 21:23:58.185 INFO [stderr]    Compiling regex v0.2.11
Dec 19 21:23:58.324 INFO [stderr]    Compiling num-integer v0.1.39
Dec 19 21:24:00.279 INFO [stderr]    Compiling bitflags v0.5.0
Dec 19 21:24:00.381 INFO [stderr]    Compiling lazy_static v1.2.0
Dec 19 21:24:00.408 INFO [stderr]     Checking itoa v0.4.3
Dec 19 21:24:00.409 INFO [stderr]    Compiling utf8-ranges v1.0.2
Dec 19 21:24:00.552 INFO [stderr]     Checking dtoa v0.4.3
Dec 19 21:24:01.520 INFO [stderr] error[E0463]: can't find crate for `std`
Dec 19 21:24:01.520 INFO [stderr]   |
Dec 19 21:24:01.520 INFO [stderr]   = note: the `x86_64-unknown-linux-musl` target may not be installed
Dec 19 21:24:01.520 INFO [stderr] 
Dec 19 21:24:01.520 INFO [stderr] error: aborting due to previous error
Dec 19 21:24:01.520 INFO [stderr] 
Dec 19 21:24:01.520 INFO [stderr] For more information about this error, try `rustc --explain E0463`.
Dec 19 21:24:01.540 INFO [stderr] error: Could not compile `itoa`.
Dec 19 21:24:01.540 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 21:24:01.726 INFO [stderr] error[E0463]: can't find crate for `std`
Dec 19 21:24:01.726 INFO [stderr]   |
Dec 19 21:24:01.726 INFO [stderr]   = note: the `x86_64-unknown-linux-musl` target may not be installed
Dec 19 21:24:01.726 INFO [stderr] 
Dec 19 21:24:01.726 INFO [stderr] error: aborting due to previous error
Dec 19 21:24:01.726 INFO [stderr] 
Dec 19 21:24:01.726 INFO [stderr] For more information about this error, try `rustc --explain E0463`.
Dec 19 21:24:01.816 INFO [stderr] error: Could not compile `dtoa`.
Dec 19 21:24:01.816 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 21:24:01.824 INFO [stderr] error[E0463]: can't find crate for `std`
Dec 19 21:24:01.860 INFO [stderr]   |
Dec 19 21:24:01.860 INFO [stderr]   = note: the `x86_64-unknown-linux-musl` target may not be installed
Dec 19 21:24:01.860 INFO [stderr] 
Dec 19 21:24:01.860 INFO [stderr] error: aborting due to previous error
Dec 19 21:24:01.860 INFO [stderr] 
Dec 19 21:24:01.860 INFO [stderr] For more information about this error, try `rustc --explain E0463`.
Dec 19 21:24:01.892 INFO [stderr] error: Could not compile `itoa`.
Dec 19 21:24:01.892 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 21:24:08.086 INFO [stderr] error: build failed
Dec 19 21:24:09.128 INFO running `"docker" "inspect" "15d68ddffa60ac79f508537343b25055408a573d43b84495d26eb527f3aea67c"`
Dec 19 21:24:09.294 INFO running `"docker" "rm" "-f" "15d68ddffa60ac79f508537343b25055408a573d43b84495d26eb527f3aea67c"`
Dec 19 21:24:09.549 INFO [stdout] 15d68ddffa60ac79f508537343b25055408a573d43b84495d26eb527f3aea67c