[INFO] updating cached repository https://github.com/jdeeny/vipchip
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a653c214fce0fffae0d0f4bae273993fad73a529
[INFO] testing jdeeny/vipchip against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdeeny%2Fvipchip" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jdeeny/vipchip on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jdeeny/vipchip
[INFO] finished tweaking git repo https://github.com/jdeeny/vipchip
[INFO] tweaked toml for git repo https://github.com/jdeeny/vipchip written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jdeeny/vipchip already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/jdeeny/rust-chip8.git`
[INFO] [stderr]     Updating git repository `https://github.com/jdeeny/drawbytes.git`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e89ec790b8a2ff3d97e295b2e27b09bcfc63c66c0b60b42a1138d25a8a8f5f41
[INFO] running `"docker" "start" "-a" "e89ec790b8a2ff3d97e295b2e27b09bcfc63c66c0b60b42a1138d25a8a8f5f41"`
[INFO] [stderr]    Compiling sdl2-sys v0.19.0
[INFO] [stderr]    Compiling drawbytes v0.1.0 (https://github.com/jdeeny/drawbytes.git#68f41b17)
[INFO] [stderr]    Compiling sdl2 v0.20.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/drawbytes-4cd57a960e7c39b9/68f41b1/src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | #![feature(plugin_registrar, rustc_private)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/drawbytes-4cd57a960e7c39b9/68f41b1/src/lib.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | #![feature(slice_patterns)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0023]: this pattern has 2 fields, but the corresponding tuple variant has 1 field
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/drawbytes-4cd57a960e7c39b9/68f41b1/src/lib.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |         TokenTree::Token(_, token::Ident(s, false)) => {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected 1 field, found 2
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0023, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0023`.
[INFO] [stderr] error: Could not compile `drawbytes`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e89ec790b8a2ff3d97e295b2e27b09bcfc63c66c0b60b42a1138d25a8a8f5f41"`
[INFO] running `"docker" "rm" "-f" "e89ec790b8a2ff3d97e295b2e27b09bcfc63c66c0b60b42a1138d25a8a8f5f41"`
[INFO] [stdout] e89ec790b8a2ff3d97e295b2e27b09bcfc63c66c0b60b42a1138d25a8a8f5f41