[INFO] updating cached repository yuriks/advance-emu
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yuriks/advance-emu
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yuriks/advance-emu" "work/ex/beta-1.38-1/sources/1.37.0/gh/yuriks/advance-emu"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/yuriks/advance-emu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yuriks/advance-emu" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuriks/advance-emu"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuriks/advance-emu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c8be83ee40c8d0f014bccb0d0351c652892b82f6
[INFO] sha for GitHub repo yuriks/advance-emu: c8be83ee40c8d0f014bccb0d0351c652892b82f6
[INFO] validating manifest of yuriks/advance-emu 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 yuriks/advance-emu 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 yuriks/advance-emu
[INFO] finished frobbing yuriks/advance-emu
[INFO] frobbed toml for yuriks/advance-emu written to work/ex/beta-1.38-1/sources/1.37.0/gh/yuriks/advance-emu/Cargo.toml
[INFO] started frobbing yuriks/advance-emu
[INFO] finished frobbing yuriks/advance-emu
[INFO] frobbed toml for yuriks/advance-emu written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuriks/advance-emu/Cargo.toml
[INFO] crate yuriks/advance-emu 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 yuriks/advance-emu against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/yuriks/advance-emu:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 29b95e14ecaba120703256f1ad09e2c18174fd0328d8dd0332ad2f5acf708dd3
[INFO] running `"docker" "start" "-a" "29b95e14ecaba120703256f1ad09e2c18174fd0328d8dd0332ad2f5acf708dd3"`
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling advance v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | / #![feature(
[INFO] [stderr] 2 | |     arbitrary_self_types,
[INFO] [stderr] 3 | |     generator_trait,
[INFO] [stderr] 4 | |     generators,
[INFO] [stderr] 5 | |     pin,
[INFO] [stderr] 6 | |     test
[INFO] [stderr] 7 | | )]
[INFO] [stderr]   | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:75
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn load_file(filename: &str, expected_size: usize) -> Result<Vec<u8>, Box<Error>> {
[INFO] [stderr]    |                                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:101:29
[INFO] [stderr]     |
[INFO] [stderr] 101 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `get_mut_unchecked` found for type `std::pin::Pin<_>` in the current scope
[INFO] [stderr]   --> src/scheduler.rs:55:23
[INFO] [stderr]    |
[INFO] [stderr] 55 |         unsafe { Pin::get_mut_unchecked(self).generator.resume() }
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^ function or associated item not found in `std::pin::Pin<_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `advance`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "29b95e14ecaba120703256f1ad09e2c18174fd0328d8dd0332ad2f5acf708dd3"`
[INFO] running `"docker" "rm" "-f" "29b95e14ecaba120703256f1ad09e2c18174fd0328d8dd0332ad2f5acf708dd3"`
[INFO] [stdout] 29b95e14ecaba120703256f1ad09e2c18174fd0328d8dd0332ad2f5acf708dd3