[INFO] updating cached repository jam1garner/ultimate-conversion-bot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jam1garner/ultimate-conversion-bot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jam1garner/ultimate-conversion-bot" "work/ex/beta-1.37-6/sources/1.36.0/gh/jam1garner/ultimate-conversion-bot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/jam1garner/ultimate-conversion-bot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jam1garner/ultimate-conversion-bot" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jam1garner/ultimate-conversion-bot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jam1garner/ultimate-conversion-bot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b8fe589a9887e6219d38345f21401f251bd9c19
[INFO] sha for GitHub repo jam1garner/ultimate-conversion-bot: 0b8fe589a9887e6219d38345f21401f251bd9c19
[INFO] validating manifest of jam1garner/ultimate-conversion-bot 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 jam1garner/ultimate-conversion-bot 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 jam1garner/ultimate-conversion-bot
[INFO] finished frobbing jam1garner/ultimate-conversion-bot
[INFO] frobbed toml for jam1garner/ultimate-conversion-bot written to work/ex/beta-1.37-6/sources/1.36.0/gh/jam1garner/ultimate-conversion-bot/Cargo.toml
[INFO] started frobbing jam1garner/ultimate-conversion-bot
[INFO] finished frobbing jam1garner/ultimate-conversion-bot
[INFO] frobbed toml for jam1garner/ultimate-conversion-bot written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/jam1garner/ultimate-conversion-bot/Cargo.toml
[INFO] crate jam1garner/ultimate-conversion-bot 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 jam1garner/ultimate-conversion-bot 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/jam1garner/ultimate-conversion-bot:/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] cc4706f912684f9ef4ce3c973218c5413b4baae623c480ecc1bfc6fcd196c9db
[INFO] running `"docker" "start" "-a" "cc4706f912684f9ef4ce3c973218c5413b4baae623c480ecc1bfc6fcd196c9db"`
[INFO] [stderr] warning: unused manifest key: path
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling multipart v0.13.6
[INFO] [stderr]    Compiling evzht9h3nznqzwl v0.0.3
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling nus3audio v1.0.3
[INFO] [stderr]    Compiling serenity v0.5.13
[INFO] [stderr]    Compiling smush-convert-bot v0.1.0 (/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(try_trait)]
[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 `smush-convert-bot`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cc4706f912684f9ef4ce3c973218c5413b4baae623c480ecc1bfc6fcd196c9db"`
[INFO] running `"docker" "rm" "-f" "cc4706f912684f9ef4ce3c973218c5413b4baae623c480ecc1bfc6fcd196c9db"`
[INFO] [stdout] cc4706f912684f9ef4ce3c973218c5413b4baae623c480ecc1bfc6fcd196c9db