[INFO] updating cached repository blofroth/corrosive-fog
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/blofroth/corrosive-fog
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/blofroth/corrosive-fog" "work/ex/beta-1.37-6/sources/1.36.0/gh/blofroth/corrosive-fog"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/blofroth/corrosive-fog'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/blofroth/corrosive-fog" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/blofroth/corrosive-fog"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/blofroth/corrosive-fog'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d5a3f7a30854d63e86ed0719f9af431505c275c7
[INFO] sha for GitHub repo blofroth/corrosive-fog: d5a3f7a30854d63e86ed0719f9af431505c275c7
[INFO] validating manifest of blofroth/corrosive-fog 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 blofroth/corrosive-fog 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 blofroth/corrosive-fog
[INFO] finished frobbing blofroth/corrosive-fog
[INFO] frobbed toml for blofroth/corrosive-fog written to work/ex/beta-1.37-6/sources/1.36.0/gh/blofroth/corrosive-fog/Cargo.toml
[INFO] started frobbing blofroth/corrosive-fog
[INFO] finished frobbing blofroth/corrosive-fog
[INFO] frobbed toml for blofroth/corrosive-fog written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/blofroth/corrosive-fog/Cargo.toml
[INFO] crate blofroth/corrosive-fog already has a lockfile, it will not be regenerated
[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] testing blofroth/corrosive-fog 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-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/blofroth/corrosive-fog:/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] a7b918da8e3b26ea373a3f6ecdc5d1b5a529e29535021860e59c9180796e0a49
[INFO] running `"docker" "start" "-a" "a7b918da8e3b26ea373a3f6ecdc5d1b5a529e29535021860e59c9180796e0a49"`
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling untrusted v0.5.0
[INFO] [stderr]    Compiling yansi v0.3.0
[INFO] [stderr]    Compiling httparse v1.2.3
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr] error[E0554]: #![feature] may not be used on the beta release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.0/src/lib.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![cfg_attr(feature="nightly", feature(const_fn))]
[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 `yansi`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a7b918da8e3b26ea373a3f6ecdc5d1b5a529e29535021860e59c9180796e0a49"`
[INFO] running `"docker" "rm" "-f" "a7b918da8e3b26ea373a3f6ecdc5d1b5a529e29535021860e59c9180796e0a49"`
[INFO] [stdout] a7b918da8e3b26ea373a3f6ecdc5d1b5a529e29535021860e59c9180796e0a49