[INFO] updating cached repository ethankhall/toolkit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ethankhall/toolkit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ethankhall/toolkit" "work/ex/beta-1.37-6/sources/1.36.0/gh/ethankhall/toolkit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ethankhall/toolkit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ethankhall/toolkit" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ethankhall/toolkit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ethankhall/toolkit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51d068b4f885087cae4de8f439bc0f514201769a
[INFO] sha for GitHub repo ethankhall/toolkit: 51d068b4f885087cae4de8f439bc0f514201769a
[INFO] validating manifest of ethankhall/toolkit 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 ethankhall/toolkit 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 ethankhall/toolkit
[INFO] finished frobbing ethankhall/toolkit
[INFO] frobbed toml for ethankhall/toolkit written to work/ex/beta-1.37-6/sources/1.36.0/gh/ethankhall/toolkit/Cargo.toml
[INFO] started frobbing ethankhall/toolkit
[INFO] finished frobbing ethankhall/toolkit
[INFO] frobbed toml for ethankhall/toolkit written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ethankhall/toolkit/Cargo.toml
[INFO] crate ethankhall/toolkit 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 ethankhall/toolkit 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-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ethankhall/toolkit:/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] 5545c3d43a74cc31ce50b9be099884ef5cac7eaf5e3f5d1f92e9ad641a5cf014
[INFO] running `"docker" "start" "-a" "5545c3d43a74cc31ce50b9be099884ef5cac7eaf5e3f5d1f92e9ad641a5cf014"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling entities v1.0.1
[INFO] [stderr]    Compiling ratelimit v0.4.4
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling fern v0.5.8
[INFO] [stderr]    Compiling openssl-sys v0.9.43
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling number_prefix v0.2.8
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling parse-zoneinfo v0.2.0
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling console v0.7.5
[INFO] [stderr]    Compiling kopy-common-lib v0.1.0 (https://github.com/ethankhall/rust-shared.git?rev=84a38d080b5a066c7443e6a46e043708d2a53f39#84a38d08)
[INFO] [stderr]    Compiling openssl v0.10.20
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.18
[INFO] [stderr]    Compiling indicatif v0.10.3
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling chrono-tz v0.5.1
[INFO] [stderr]    Compiling hyper v0.12.25
[INFO] [stderr]    Compiling sct v0.5.0
[INFO] [stderr]    Compiling webpki v0.19.1
[INFO] [stderr]    Compiling ct-logs v0.5.1
[INFO] [stderr]    Compiling rustls v0.15.1
[INFO] [stderr]    Compiling webpki-roots v0.16.0
[INFO] [stderr]    Compiling comrak v0.4.4
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling tokio-rustls v0.9.1
[INFO] [stderr]    Compiling hyper-rustls v0.16.1
[INFO] [stderr]    Compiling reqwest v0.9.12
[INFO] [stderr]    Compiling toolkit v99.9.999-SNAPSHOT (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_concat_ext)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(vec_remove_item)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `toolkit`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5545c3d43a74cc31ce50b9be099884ef5cac7eaf5e3f5d1f92e9ad641a5cf014"`
[INFO] running `"docker" "rm" "-f" "5545c3d43a74cc31ce50b9be099884ef5cac7eaf5e3f5d1f92e9ad641a5cf014"`
[INFO] [stdout] 5545c3d43a74cc31ce50b9be099884ef5cac7eaf5e3f5d1f92e9ad641a5cf014