[INFO] updating cached repository diggsey-rust-meetup/fluid1
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/diggsey-rust-meetup/fluid1
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/diggsey-rust-meetup/fluid1" "work/ex/beta-1.38-1/sources/1.37.0/gh/diggsey-rust-meetup/fluid1"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/diggsey-rust-meetup/fluid1'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/diggsey-rust-meetup/fluid1" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/diggsey-rust-meetup/fluid1"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/diggsey-rust-meetup/fluid1'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 049a2db4bb601a7b0e5418f832f48605fea48c14
[INFO] sha for GitHub repo diggsey-rust-meetup/fluid1: 049a2db4bb601a7b0e5418f832f48605fea48c14
[INFO] validating manifest of diggsey-rust-meetup/fluid1 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 diggsey-rust-meetup/fluid1 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 diggsey-rust-meetup/fluid1
[INFO] finished frobbing diggsey-rust-meetup/fluid1
[INFO] frobbed toml for diggsey-rust-meetup/fluid1 written to work/ex/beta-1.38-1/sources/1.37.0/gh/diggsey-rust-meetup/fluid1/Cargo.toml
[INFO] started frobbing diggsey-rust-meetup/fluid1
[INFO] finished frobbing diggsey-rust-meetup/fluid1
[INFO] frobbed toml for diggsey-rust-meetup/fluid1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/diggsey-rust-meetup/fluid1/Cargo.toml
[INFO] crate diggsey-rust-meetup/fluid1 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 diggsey-rust-meetup/fluid1 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/diggsey-rust-meetup/fluid1:/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] 278e79494320c4b0e93ec346e94648ffa2c7e3b9d6afaf0f867a07dce6894307
[INFO] running `"docker" "start" "-a" "278e79494320c4b0e93ec346e94648ffa2c7e3b9d6afaf0f867a07dce6894307"`
[INFO] [stderr]    Compiling phf_shared v0.7.19
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling serde v0.8.17
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]    Compiling sdl2-sys v0.23.0
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling xml-rs v0.3.4
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling x11-dl v2.11.0
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling vecmath v0.2.0 (https://github.com/PistonDevelopers/vecmath#c0b1954c)
[INFO] [stderr]    Compiling phf v0.7.19
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling gfx_core v0.5.0 (https://github.com/gfx-rs/gfx#dae247ce)
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling semver v0.2.3
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling cmake v0.1.18
[INFO] [stderr]    Compiling phf_generator v0.7.19
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling phf_codegen v0.7.19
[INFO] [stderr]    Compiling glfw-sys v3.2.1
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling wayland-scanner v0.7.6
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling enum_primitive v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.23.0
[INFO] [stderr]    Compiling serde_json v0.8.3
[INFO] [stderr]    Compiling wayland-client v0.7.6
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]    Compiling glutin v0.7.0
[INFO] [stderr]    Compiling glfw v0.5.0
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.7.6
[INFO] [stderr]    Compiling wayland-kbd v0.6.2
[INFO] [stderr]    Compiling wayland-window v0.4.2
[INFO] [stderr]    Compiling winit v0.5.5
[INFO] [stderr]    Compiling gfx_device_gl v0.12.0 (https://github.com/gfx-rs/gfx#dae247ce)
[INFO] [stderr]    Compiling gfx v0.13.0 (https://github.com/gfx-rs/gfx#dae247ce)
[INFO] [stderr]    Compiling gfx_window_sdl v0.4.0 (https://github.com/gfx-rs/gfx#dae247ce)
[INFO] [stderr]    Compiling gfx_window_glfw v0.12.0 (https://github.com/gfx-rs/gfx#dae247ce)
[INFO] [stderr]    Compiling gfx_window_glutin v0.13.1 (https://github.com/gfx-rs/gfx#dae247ce)
[INFO] [stderr]    Compiling fluid 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(conservative_impl_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 `fluid`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "278e79494320c4b0e93ec346e94648ffa2c7e3b9d6afaf0f867a07dce6894307"`
[INFO] running `"docker" "rm" "-f" "278e79494320c4b0e93ec346e94648ffa2c7e3b9d6afaf0f867a07dce6894307"`
[INFO] [stdout] 278e79494320c4b0e93ec346e94648ffa2c7e3b9d6afaf0f867a07dce6894307