[INFO] updating cached repository https://github.com/serasaan/rust_pong
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] f17ddd93fcf44c3d3c06b3f6aa89cede3b5c688d
[INFO] checking serasaan/rust_pong against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserasaan%2Frust_pong" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/serasaan/rust_pong on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/serasaan/rust_pong
[INFO] finished tweaking git repo https://github.com/serasaan/rust_pong
[INFO] tweaked toml for git repo https://github.com/serasaan/rust_pong written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/serasaan/rust_pong already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 408c9ece6eb2e0e86ecd17fafacaffd638196613cd3482ca70d9e1066e3a4b92
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "408c9ece6eb2e0e86ecd17fafacaffd638196613cd3482ca70d9e1066e3a4b92"`
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]     Checking c_vec v1.3.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/keyboard/mod.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | / bitflags! {
[INFO] [stderr] 14 | |     pub struct Mod: u16 {
[INFO] [stderr] 15 | |         const NOMOD = 0x0000;
[INFO] [stderr] 16 | |         const LSHIFTMOD = 0x0001;
[INFO] [stderr] ...  |
[INFO] [stderr] 28 | |     }
[INFO] [stderr] 29 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / bitflags! {
[INFO] [stderr] 13 | |     pub struct MessageBoxFlag: u32 {
[INFO] [stderr] 14 | |         const ERROR =
[INFO] [stderr] 15 | |             sys::SDL_MessageBoxFlags::SDL_MESSAGEBOX_ERROR as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / bitflags! {
[INFO] [stderr] 24 | |     pub struct MessageBoxButtonFlag: u32 {
[INFO] [stderr] 25 | |         const ESCAPEKEY_DEFAULT =
[INFO] [stderr] 26 | |             sys::SDL_MessageBoxButtonFlags::SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 30 | |     }
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / bitflags! {
[INFO] [stderr] 13 | |     pub struct MessageBoxFlag: u32 {
[INFO] [stderr] 14 | |         const ERROR =
[INFO] [stderr] 15 | |             sys::SDL_MessageBoxFlags::SDL_MESSAGEBOX_ERROR as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / bitflags! {
[INFO] [stderr] 13 | |     pub struct MessageBoxFlag: u32 {
[INFO] [stderr] 14 | |         const ERROR =
[INFO] [stderr] 15 | |             sys::SDL_MessageBoxFlags::SDL_MESSAGEBOX_ERROR as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / bitflags! {
[INFO] [stderr] 13 | |     pub struct MessageBoxFlag: u32 {
[INFO] [stderr] 14 | |         const ERROR =
[INFO] [stderr] 15 | |             sys::SDL_MessageBoxFlags::SDL_MESSAGEBOX_ERROR as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / bitflags! {
[INFO] [stderr] 24 | |     pub struct MessageBoxButtonFlag: u32 {
[INFO] [stderr] 25 | |         const ESCAPEKEY_DEFAULT =
[INFO] [stderr] 26 | |             sys::SDL_MessageBoxButtonFlags::SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 30 | |     }
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / bitflags! {
[INFO] [stderr] 24 | |     pub struct MessageBoxButtonFlag: u32 {
[INFO] [stderr] 25 | |         const ESCAPEKEY_DEFAULT =
[INFO] [stderr] 26 | |             sys::SDL_MessageBoxButtonFlags::SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 30 | |     }
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0518]: attribute should be applied to function or closure
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sdl2-0.32.2/src/sdl2/messagebox.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | / bitflags! {
[INFO] [stderr] 24 | |     pub struct MessageBoxButtonFlag: u32 {
[INFO] [stderr] 25 | |         const ESCAPEKEY_DEFAULT =
[INFO] [stderr] 26 | |             sys::SDL_MessageBoxButtonFlags::SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT as u32;
[INFO] [stderr] ...  |
[INFO] [stderr] 30 | |     }
[INFO] [stderr] 31 | | }
[INFO] [stderr]    | |_^ not a function or closure
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 22 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0518`.
[INFO] [stderr] error: could not compile `sdl2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "408c9ece6eb2e0e86ecd17fafacaffd638196613cd3482ca70d9e1066e3a4b92"`
[INFO] running `"docker" "rm" "-f" "408c9ece6eb2e0e86ecd17fafacaffd638196613cd3482ca70d9e1066e3a4b92"`
[INFO] [stdout] 408c9ece6eb2e0e86ecd17fafacaffd638196613cd3482ca70d9e1066e3a4b92