[INFO] updating cached repository https://github.com/oeb25/runshader
[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] 4b70749c40df991c19286c85e30f9b6db8f52a62
[INFO] testing oeb25/runshader against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Frunshader" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oeb25/runshader 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/oeb25/runshader
[INFO] finished tweaking git repo https://github.com/oeb25/runshader
[INFO] tweaked toml for git repo https://github.com/oeb25/runshader written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/oeb25/runshader 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] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] e4a1260b6288a11eefcb26c28f9d35f84e5a3ccfe6f270984d307aa68b3bb4fe
[INFO] running `"docker" "start" "-a" "e4a1260b6288a11eefcb26c28f9d35f84e5a3ccfe6f270984d307aa68b3bb4fe"`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.20.12
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[INFO] [stderr]    Compiling wayland-commons v0.20.12
[INFO] [stderr]    Compiling tempfile v3.0.4
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.2.6
[INFO] [stderr]    Compiling winit v0.16.2
[INFO] [stderr]    Compiling runshader v0.1.0 (/opt/rustwide/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(duration_as_u128)]
[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 `runshader`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e4a1260b6288a11eefcb26c28f9d35f84e5a3ccfe6f270984d307aa68b3bb4fe"`
[INFO] running `"docker" "rm" "-f" "e4a1260b6288a11eefcb26c28f9d35f84e5a3ccfe6f270984d307aa68b3bb4fe"`
[INFO] [stdout] e4a1260b6288a11eefcb26c28f9d35f84e5a3ccfe6f270984d307aa68b3bb4fe