[INFO] updating cached repository syvsto/interedit
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/syvsto/interedit
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/syvsto/interedit" "work/ex/beta-1.38-1/sources/1.37.0/gh/syvsto/interedit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/syvsto/interedit'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/syvsto/interedit" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/syvsto/interedit"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/syvsto/interedit'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8e91ce1f6d1f0caa751919cc69269eecf89ab31f
[INFO] sha for GitHub repo syvsto/interedit: 8e91ce1f6d1f0caa751919cc69269eecf89ab31f
[INFO] validating manifest of syvsto/interedit 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 syvsto/interedit 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 syvsto/interedit
[INFO] finished frobbing syvsto/interedit
[INFO] frobbed toml for syvsto/interedit written to work/ex/beta-1.38-1/sources/1.37.0/gh/syvsto/interedit/Cargo.toml
[INFO] started frobbing syvsto/interedit
[INFO] finished frobbing syvsto/interedit
[INFO] frobbed toml for syvsto/interedit written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/syvsto/interedit/Cargo.toml
[INFO] crate syvsto/interedit already has a lockfile, it will not be regenerated
[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 syvsto/interedit against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/syvsto/interedit:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] afd30822e6b0c2d1b143085bbf31c305ba73aa538d8b8747f43c39d02b06fc6b
[INFO] running `"docker" "start" "-a" "afd30822e6b0c2d1b143085bbf31c305ba73aa538d8b8747f43c39d02b06fc6b"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling webview-sys v0.1.0
[INFO] [stderr]    Compiling web-view v0.2.1
[INFO] [stderr]    Compiling parser v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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(rust_2018_preview, use_extern_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hidden lifetime parameters in types are deprecated
[INFO] [stderr]   --> src/gui.rs:85:38
[INFO] [stderr]    |
[INFO] [stderr] 85 |     let init_cb = |webview: MyUnique<WebView<String>>| {};
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^ help: indicate the anonymous lifetime: `WebView<'_, String>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `failure::Fail`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use failure::Fail;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use serde;
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0705.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `parser`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "afd30822e6b0c2d1b143085bbf31c305ba73aa538d8b8747f43c39d02b06fc6b"`
[INFO] running `"docker" "rm" "-f" "afd30822e6b0c2d1b143085bbf31c305ba73aa538d8b8747f43c39d02b06fc6b"`
[INFO] [stdout] afd30822e6b0c2d1b143085bbf31c305ba73aa538d8b8747f43c39d02b06fc6b