[INFO] fetching crate tudelft-quadrupel 3.0.1...
[INFO] testing tudelft-quadrupel-3.0.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate tudelft-quadrupel 3.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate tudelft-quadrupel 3.0.1
[INFO] finished tweaking crates.io crate tudelft-quadrupel 3.0.1
[INFO] tweaked toml for crates.io crate tudelft-quadrupel 3.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tudelft-quadrupel 3.0.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding alloc-cortex-m v0.4.3 (available: v0.4.4)
[INFO] [stderr]       Adding cortex-m v0.7.6 (available: v0.7.7)
[INFO] [stderr]       Adding cortex-m-rt v0.7.3 (available: v0.7.5)
[INFO] [stderr]       Adding cortex-m-rt-macros v0.7.0 (available: v0.7.5)
[INFO] [stderr]       Adding nrf-hal-common v0.16.0 (available: v0.16.1)
[INFO] [stderr]       Adding nrf51-hal v0.16.0 (available: v0.16.1)
[INFO] [stderr]       Adding ringbuffer v0.15.0 (available: v0.16.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5685de01aa1e97c0d035bdf42b4c53e4cd2bd221538818a15b668effc7567302
[INFO] running `Command { std: "docker" "start" "-a" "5685de01aa1e97c0d035bdf42b4c53e4cd2bd221538818a15b668effc7567302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5685de01aa1e97c0d035bdf42b4c53e4cd2bd221538818a15b668effc7567302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5685de01aa1e97c0d035bdf42b4c53e4cd2bd221538818a15b668effc7567302", kill_on_drop: false }`
[INFO] [stdout] 5685de01aa1e97c0d035bdf42b4c53e4cd2bd221538818a15b668effc7567302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3452e234655849fcf65f8d13b2594e7ce84643371acc3c24072b96d96b18037d
[INFO] running `Command { std: "docker" "start" "-a" "3452e234655849fcf65f8d13b2594e7ce84643371acc3c24072b96d96b18037d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.3
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling nrf51-pac v0.12.2
[INFO] [stderr]    Compiling fixed v1.29.0
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling nrf-hal-common v0.16.0
[INFO] [stderr]    Compiling embedded-dma v0.2.0
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling nrf51-hal v0.16.0
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling linked_list_allocator v0.10.5
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling ringbuffer v0.15.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling alloc-cortex-m v0.4.3
[INFO] [stderr]    Compiling tudelft-quadrupel v3.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(strict_provenance)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `strict_provenance` has been stable since 1.84.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(strict_provenance)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: formatting may not be suitable for sub-register argument
[INFO] [stdout]    --> src/time.rs:232:15
[INFO] [stdout]     |
[INFO] [stdout] 232 |         "subs {}, #1",
[INFO] [stdout]     |               ^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |         inout(reg) number_of_us,
[INFO] [stdout]     |                    ------------ for this argument
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values)
[INFO] [stdout]     = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values)
[INFO] [stdout]     = note: `#[warn(asm_sub_register)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tudelft-quadrupel` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3452e234655849fcf65f8d13b2594e7ce84643371acc3c24072b96d96b18037d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3452e234655849fcf65f8d13b2594e7ce84643371acc3c24072b96d96b18037d", kill_on_drop: false }`
[INFO] [stdout] 3452e234655849fcf65f8d13b2594e7ce84643371acc3c24072b96d96b18037d
