[INFO] crate buf-ref-reader 0.3.0 is already in cache
[INFO] extracting crate buf-ref-reader 0.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/buf-ref-reader/0.3.0
[INFO] extracting crate buf-ref-reader 0.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf-ref-reader/0.3.0
[INFO] validating manifest of buf-ref-reader-0.3.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of buf-ref-reader-0.3.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing buf-ref-reader-0.3.0
[INFO] finished frobbing buf-ref-reader-0.3.0
[INFO] frobbed toml for buf-ref-reader-0.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/buf-ref-reader/0.3.0/Cargo.toml
[INFO] started frobbing buf-ref-reader-0.3.0
[INFO] finished frobbing buf-ref-reader-0.3.0
[INFO] frobbed toml for buf-ref-reader-0.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf-ref-reader/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing buf-ref-reader-0.3.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf-ref-reader/0.3.0:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 3f905842fb9a1cd5692b87e89fa204c5d525da6fb53957fdadbfcd80026d8280
[INFO] running `"docker" "start" "-a" "3f905842fb9a1cd5692b87e89fa204c5d525da6fb53957fdadbfcd80026d8280"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling copy_in_place v0.2.0
[INFO] [stderr]    Compiling slice-deque v0.1.16
[INFO] [stderr]    Compiling buf-ref-reader v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `"docker" "inspect" "3f905842fb9a1cd5692b87e89fa204c5d525da6fb53957fdadbfcd80026d8280"`
[INFO] running `"docker" "rm" "-f" "3f905842fb9a1cd5692b87e89fa204c5d525da6fb53957fdadbfcd80026d8280"`
[INFO] [stdout] 3f905842fb9a1cd5692b87e89fa204c5d525da6fb53957fdadbfcd80026d8280
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/buf-ref-reader/0.3.0:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5e0e154a080ebfd02e74e5c7156ab95d12fde707a4271fa47a45e576b54e99f7
[INFO] running `"docker" "start" "-a" "5e0e154a080ebfd02e74e5c7156ab95d12fde707a4271fa47a45e576b54e99f7"`
[INFO] [stderr]    Compiling bencher v0.1.5
[INFO] [stderr]    Compiling buf-ref-reader v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] error: couldn't read /usr/share/dict/words: No such file or directory (os error 2)
[INFO] [stderr]    --> src/lib.rs:246:31
[INFO] [stderr]     |
[INFO] [stderr] 246 | static WORDS: &'static [u8] = include_bytes!("/usr/share/dict/words");
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `buf-ref-reader`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5e0e154a080ebfd02e74e5c7156ab95d12fde707a4271fa47a45e576b54e99f7"`
[INFO] running `"docker" "rm" "-f" "5e0e154a080ebfd02e74e5c7156ab95d12fde707a4271fa47a45e576b54e99f7"`
[INFO] [stdout] 5e0e154a080ebfd02e74e5c7156ab95d12fde707a4271fa47a45e576b54e99f7