[INFO] crate r18n 0.0.2 is already in cache
[INFO] extracting crate r18n 0.0.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/r18n/0.0.2
[INFO] extracting crate r18n 0.0.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/r18n/0.0.2
[INFO] validating manifest of r18n-0.0.2 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 r18n-0.0.2 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 r18n-0.0.2
[INFO] finished frobbing r18n-0.0.2
[INFO] frobbed toml for r18n-0.0.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/r18n/0.0.2/Cargo.toml
[INFO] started frobbing r18n-0.0.2
[INFO] finished frobbing r18n-0.0.2
[INFO] frobbed toml for r18n-0.0.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/r18n/0.0.2/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] testing r18n-0.0.2 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/r18n/0.0.2:/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] 7191fdc044b5ead2fdf247d974bf82fbddb25a26c46113fd6cd0f727b2d5678f
[INFO] running `"docker" "start" "-a" "7191fdc044b5ead2fdf247d974bf82fbddb25a26c46113fd6cd0f727b2d5678f"`
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling r18n v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(custom_derive, path, io, collections, core, libc)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `#[proc_macro_derive]`
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(custom_derive, path, io, collections, core, libc)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `collections`
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate collections;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0463, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `r18n`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7191fdc044b5ead2fdf247d974bf82fbddb25a26c46113fd6cd0f727b2d5678f"`
[INFO] running `"docker" "rm" "-f" "7191fdc044b5ead2fdf247d974bf82fbddb25a26c46113fd6cd0f727b2d5678f"`
[INFO] [stdout] 7191fdc044b5ead2fdf247d974bf82fbddb25a26c46113fd6cd0f727b2d5678f