[INFO] cloning repository https://github.com/jamwaffles/rust-meetup-simple-clock
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamwaffles/rust-meetup-simple-clock" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamwaffles%2Frust-meetup-simple-clock", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamwaffles%2Frust-meetup-simple-clock'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89e39b6dfc2adf329044832436fd06ad9b37d104
[INFO] testing jamwaffles/rust-meetup-simple-clock against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamwaffles%2Frust-meetup-simple-clock" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jamwaffles/rust-meetup-simple-clock
[INFO] finished tweaking git repo https://github.com/jamwaffles/rust-meetup-simple-clock
[INFO] tweaked toml for git repo https://github.com/jamwaffles/rust-meetup-simple-clock written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jamwaffles/rust-meetup-simple-clock on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jamwaffles/rust-meetup-simple-clock already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 14e2d27a32bab4f3a22fc46d7318285deb2f19d699aed64a917c869a04485499
[INFO] running `Command { std: "docker" "start" "-a" "14e2d27a32bab4f3a22fc46d7318285deb2f19d699aed64a917c869a04485499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14e2d27a32bab4f3a22fc46d7318285deb2f19d699aed64a917c869a04485499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e2d27a32bab4f3a22fc46d7318285deb2f19d699aed64a917c869a04485499", kill_on_drop: false }`
[INFO] [stdout] 14e2d27a32bab4f3a22fc46d7318285deb2f19d699aed64a917c869a04485499
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55db062e913cf300aa591ae21fecb76b69af1e22127ebac3ed3859eb199251d1
[INFO] running `Command { std: "docker" "start" "-a" "55db062e913cf300aa591ae21fecb76b69af1e22127ebac3ed3859eb199251d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling cortex-m v0.5.8
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling cortex-m-rt v0.6.7
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling nb v0.1.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.2
[INFO] [stderr]    Compiling stm32f1 v0.6.0
[INFO] [stderr]    Compiling cortex-m-rtfm v0.4.2
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling embedded-hal v0.2.2
[INFO] [stderr]    Compiling ssd1306 v0.2.4
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling rust-meetup-simple-clock v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling nom v4.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling hash32 v0.1.0
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling tinybmp v0.1.0
[INFO] [stderr]    Compiling heapless v0.4.2
[INFO] [stderr]    Compiling panic-semihosting v0.5.1
[INFO] [stderr]    Compiling embedded-graphics v0.4.7
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]    Compiling owned-singleton-macros v0.1.0
[INFO] [stderr]    Compiling cortex-m-rtfm-macros v0.4.2
[INFO] [stderr]    Compiling owned-singleton v0.1.0
[INFO] [stderr]    Compiling stm32f1xx-hal v0.2.0 (https://github.com/stm32-rs/stm32f1xx-hal.git?rev=380ea962b8c91546e53e1c7646d869d2ec81f362#380ea962)
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::fmt::{self, Write};
[INFO] [stdout]   |                 ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fonts::Font8x16` and `pixelcolor::PixelColorU8`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fonts::Font8x16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     pixelcolor::PixelColorU8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::consts::*`
[INFO] [stdout]   --> src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use heapless::consts::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `heapless::String`
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use heapless::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `clear` found for struct `DISPLAY<'a>` in the current scope
[INFO] [stdout]    --> src/main.rs:239:27
[INFO] [stdout]     |
[INFO] [stdout] 144 | #[app(device = stm32f1xx_hal::stm32)]
[INFO] [stdout]     | ------------------------------------- method `clear` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 239 |         resources.DISPLAY.clear();
[INFO] [stdout]     |                           ^^^^^ method not found in `DISPLAY<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:241:20
[INFO] [stdout]     |
[INFO] [stdout] 241 |         clock_face(&mut resources.DISPLAY);
[INFO] [stdout]     |         ---------- ^^^^^^^^^^^^^^^^^^^^^^ expected `&mut GraphicsMode<I2cInterface<...>>`, found `&mut DISPLAY<'_>`
[INFO] [stdout]     |         |
[INFO] [stdout]     |         arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut GraphicsMode<I2cInterface<BlockingI2c<I2C1, (PB8<Alternate<OpenDrain>>, PB9<Alternate<OpenDrain>>)>>>`
[INFO] [stdout]                found mutable reference `&mut DISPLAY<'_>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:55:4
[INFO] [stdout]     |
[INFO] [stdout]  55 | fn clock_face(display: &mut OledDisplay) {
[INFO] [stdout]     |    ^^^^^^^^^^ -------------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:242:21
[INFO] [stdout]     |
[INFO] [stdout] 242 |         clock_hands(&mut resources.DISPLAY, resources.RTC_DEVICE.seconds());
[INFO] [stdout]     |         ----------- ^^^^^^^^^^^^^^^^^^^^^^ expected `&mut GraphicsMode<I2cInterface<...>>`, found `&mut DISPLAY<'_>`
[INFO] [stdout]     |         |
[INFO] [stdout]     |         arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected mutable reference `&mut GraphicsMode<I2cInterface<BlockingI2c<I2C1, (PB8<Alternate<OpenDrain>>, PB9<Alternate<OpenDrain>>)>>>`
[INFO] [stdout]                found mutable reference `&mut DISPLAY<'_>`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> src/main.rs:92:4
[INFO] [stdout]     |
[INFO] [stdout]  92 | fn clock_hands(display: &mut OledDisplay, seconds: u32) {
[INFO] [stdout]     |    ^^^^^^^^^^^ -------------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `flush` found for struct `DISPLAY<'a>` in the current scope
[INFO] [stdout]    --> src/main.rs:244:27
[INFO] [stdout]     |
[INFO] [stdout] 144 | #[app(device = stm32f1xx_hal::stm32)]
[INFO] [stdout]     | ------------------------------------- method `flush` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 244 |         resources.DISPLAY.flush().expect("Failed to update display");
[INFO] [stdout]     |                           ^^^^^ method not found in `DISPLAY<'_>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `flush`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `stm32f1xx_hal::prelude::_embedded_hal_serial_Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let mut rtc = Rtc::rtc(device.RTC, &mut backup_domain);
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-meetup-simple-clock` (bin "rust-meetup-simple-clock") due to 5 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "55db062e913cf300aa591ae21fecb76b69af1e22127ebac3ed3859eb199251d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55db062e913cf300aa591ae21fecb76b69af1e22127ebac3ed3859eb199251d1", kill_on_drop: false }`
[INFO] [stdout] 55db062e913cf300aa591ae21fecb76b69af1e22127ebac3ed3859eb199251d1
