[INFO] crate encoding-index-japanese 1.20141219.5 is already in cache
[INFO] extracting crate encoding-index-japanese 1.20141219.5 into work/ex/beta-1.38-1/sources/1.37.0/reg/encoding-index-japanese/1.20141219.5
[INFO] extracting crate encoding-index-japanese 1.20141219.5 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/encoding-index-japanese/1.20141219.5
[INFO] validating manifest of encoding-index-japanese-1.20141219.5 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of encoding-index-japanese-1.20141219.5 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing encoding-index-japanese-1.20141219.5
[INFO] removed path dependency encoding_index_tests from encoding-index-japanese-1.20141219.5
[INFO] finished frobbing encoding-index-japanese-1.20141219.5
[INFO] frobbed toml for encoding-index-japanese-1.20141219.5 written to work/ex/beta-1.38-1/sources/1.37.0/reg/encoding-index-japanese/1.20141219.5/Cargo.toml
[INFO] started frobbing encoding-index-japanese-1.20141219.5
[INFO] removed path dependency encoding_index_tests from encoding-index-japanese-1.20141219.5
[INFO] finished frobbing encoding-index-japanese-1.20141219.5
[INFO] frobbed toml for encoding-index-japanese-1.20141219.5 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/encoding-index-japanese/1.20141219.5/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing encoding-index-japanese-1.20141219.5 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/encoding-index-japanese/1.20141219.5:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 26f5e37c87e81ba624ac62d1ce8bd5e64828f1e87d91fdb261fbaa7b7289b1a4
[INFO] running `"docker" "start" "-a" "26f5e37c87e81ba624ac62d1ce8bd5e64828f1e87d91fdb261fbaa7b7289b1a4"`
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "26f5e37c87e81ba624ac62d1ce8bd5e64828f1e87d91fdb261fbaa7b7289b1a4"`
[INFO] running `"docker" "rm" "-f" "26f5e37c87e81ba624ac62d1ce8bd5e64828f1e87d91fdb261fbaa7b7289b1a4"`
[INFO] [stdout] 26f5e37c87e81ba624ac62d1ce8bd5e64828f1e87d91fdb261fbaa7b7289b1a4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/encoding-index-japanese/1.20141219.5:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d4b6bdda4edeba33e5057e411e3281c07ee4bc5f556b6b102a4a947c30aa793d
[INFO] running `"docker" "start" "-a" "d4b6bdda4edeba33e5057e411e3281c07ee4bc5f556b6b102a4a947c30aa793d"`
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> lib.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | #![cfg_attr(test, feature(test))]
[INFO] [stderr]   |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `encoding-index-japanese`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "d4b6bdda4edeba33e5057e411e3281c07ee4bc5f556b6b102a4a947c30aa793d"`
[INFO] running `"docker" "rm" "-f" "d4b6bdda4edeba33e5057e411e3281c07ee4bc5f556b6b102a4a947c30aa793d"`
[INFO] [stdout] d4b6bdda4edeba33e5057e411e3281c07ee4bc5f556b6b102a4a947c30aa793d