[INFO] updating cached repository Jascha-N/voctra
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Jascha-N/voctra
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Jascha-N/voctra" "work/ex/beta-1.37-6/sources/1.36.0/gh/Jascha-N/voctra"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Jascha-N/voctra'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Jascha-N/voctra" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Jascha-N/voctra"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Jascha-N/voctra'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ae7823b9b43d710669936bc741f706ddfa99d060
[INFO] sha for GitHub repo Jascha-N/voctra: ae7823b9b43d710669936bc741f706ddfa99d060
[INFO] validating manifest of Jascha-N/voctra 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 Jascha-N/voctra 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 Jascha-N/voctra
[INFO] finished frobbing Jascha-N/voctra
[INFO] frobbed toml for Jascha-N/voctra written to work/ex/beta-1.37-6/sources/1.36.0/gh/Jascha-N/voctra/Cargo.toml
[INFO] started frobbing Jascha-N/voctra
[INFO] finished frobbing Jascha-N/voctra
[INFO] frobbed toml for Jascha-N/voctra written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Jascha-N/voctra/Cargo.toml
[INFO] crate Jascha-N/voctra 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Jascha-N/voctra against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Jascha-N/voctra:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 59a9731bb6f94b2c84e680455e84f9706ab3fc749aa64f9d39232fc6a2ae8aaf
[INFO] running `"docker" "start" "-a" "59a9731bb6f94b2c84e680455e84f9706ab3fc749aa64f9d39232fc6a2ae8aaf"`
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling scopeguard v0.3.2
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling futures v0.1.14
[INFO] [stderr]    Compiling gcc v0.3.51
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.5
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling percent-encoding v1.0.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling yansi v0.3.0
[INFO] [stderr]    Compiling untrusted v0.5.0
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable 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]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling serde v1.0.10
[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" "59a9731bb6f94b2c84e680455e84f9706ab3fc749aa64f9d39232fc6a2ae8aaf"`
[INFO] running `"docker" "rm" "-f" "59a9731bb6f94b2c84e680455e84f9706ab3fc749aa64f9d39232fc6a2ae8aaf"`
[INFO] [stdout] 59a9731bb6f94b2c84e680455e84f9706ab3fc749aa64f9d39232fc6a2ae8aaf