[INFO] cloning repository https://github.com/hdbhm/probe-rs-rc-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hdbhm/probe-rs-rc-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdbhm%2Fprobe-rs-rc-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdbhm%2Fprobe-rs-rc-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac7f6f827a3ee349210c2d3eae9cc8b115caf570
[INFO] testing hdbhm/probe-rs-rc-poc 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%2Fhdbhm%2Fprobe-rs-rc-poc" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/hdbhm/probe-rs-rc-poc
[INFO] finished tweaking git repo https://github.com/hdbhm/probe-rs-rc-poc
[INFO] tweaked toml for git repo https://github.com/hdbhm/probe-rs-rc-poc written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/hdbhm/probe-rs-rc-poc 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/hdbhm/probe-rs-rc-poc 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c21adfb36062e16ae36e799ddda4cd28aa1a1270614e64e21347d380ac08a94
[INFO] running `Command { std: "docker" "start" "-a" "3c21adfb36062e16ae36e799ddda4cd28aa1a1270614e64e21347d380ac08a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c21adfb36062e16ae36e799ddda4cd28aa1a1270614e64e21347d380ac08a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c21adfb36062e16ae36e799ddda4cd28aa1a1270614e64e21347d380ac08a94", kill_on_drop: false }`
[INFO] [stdout] 3c21adfb36062e16ae36e799ddda4cd28aa1a1270614e64e21347d380ac08a94
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37b8b1403dbf933d0996dc9f575684afe00fdf57edc3abeb5b63749af35c4322
[INFO] running `Command { std: "docker" "start" "-a" "37b8b1403dbf933d0996dc9f575684afe00fdf57edc3abeb5b63749af35c4322", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling defmt v1.0.1
[INFO] [stderr]    Compiling litrs v1.0.0
[INFO] [stderr]    Compiling defmt-macros v1.0.1
[INFO] [stderr]    Compiling esp-metadata-generated v0.3.0
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling unsafe-libyaml v0.2.11
[INFO] [stderr]    Compiling itoa v1.0.17
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]    Compiling somni-parser v0.2.2
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling winnow v0.7.14
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling syn v2.0.116
[INFO] [stderr]    Compiling embassy-sync v0.7.2
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling esp-rom-sys v0.1.3
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling embassy-sync v0.6.2
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling somni-expr v0.2.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.3.0
[INFO] [stderr]    Compiling embassy-time-driver v0.2.1
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling esp-sync v0.1.1
[INFO] [stderr]    Compiling document-features v0.2.12
[INFO] [stderr]    Compiling embassy-time-queue-utils v0.3.0
[INFO] [stderr]    Compiling instability v0.3.11
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling esp32c3 v0.31.0
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling embedded-storage-async v0.4.1
[INFO] [stderr]    Compiling indexmap v2.13.0
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling embassy-executor-timer-queue v0.1.0
[INFO] [stderr]    Compiling jiff v0.2.20
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stdout] error: `portable_atomic_unsafe_assume_single_core` cfg (`unsafe-assume-single-core` feature) is not supported yet on this architecture;
[INFO] [stdout]        if you need unsafe-assume-{single-core,privileged} support for this target,
[INFO] [stdout]        please submit an issue at <https://github.com/taiki-e/portable-atomic/issues/new>
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/portable-atomic-1.13.1/src/lib.rs:455:1
[INFO] [stdout]     |
[INFO] [stdout] 455 | / compile_error!(
[INFO] [stdout] 456 | |     "`portable_atomic_unsafe_assume_single_core` cfg (`unsafe-assume-single-core` feature) \
[INFO] [stdout] 457 | |      is not supported yet on this architecture;\n\
[INFO] [stdout] 458 | |      if you need unsafe-assume-{single-core,privileged} support for this target,\n\
[INFO] [stdout] 459 | |      please submit an issue at <https://github.com/taiki-e/portable-atomic/issues/new>"
[INFO] [stdout] 460 | | );
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling embassy-executor v0.9.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling gcd v2.3.0
[INFO] [stdout] error[E0433]: cannot find `fallback` in `super`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/portable-atomic-1.13.1/src/imp/atomic128/../fallback/outline_atomics.rs:18:50
[INFO] [stdout]     |
[INFO] [stdout]  18 | pub(crate) type AtomicUdw = super::super::super::fallback::AtomicU128;
[INFO] [stdout]     |                                                  ^^^^^^^^ could not find `fallback` in `super`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/portable-atomic-1.13.1/src/imp/mod.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout]  97 |   #[cfg(not(any(
[INFO] [stdout]     |  __________-
[INFO] [stdout]  98 | |     target_arch = "avr",
[INFO] [stdout]  99 | |     target_arch = "msp430",
[INFO] [stdout] 100 | |     portable_atomic_unsafe_assume_single_core,
[INFO] [stdout] 101 | | )))]
[INFO] [stdout]     | |__- the item is gated here
[INFO] [stdout] ...
[INFO] [stdout] 156 |   mod fallback;
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `fallback` in `super`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/portable-atomic-1.13.1/src/imp/atomic128/../fallback/outline_atomics.rs:20:50
[INFO] [stdout]     |
[INFO] [stdout]  20 | pub(crate) type AtomicIdw = super::super::super::fallback::AtomicI128;
[INFO] [stdout]     |                                                  ^^^^^^^^ could not find `fallback` in `super`
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/portable-atomic-1.13.1/src/imp/mod.rs:156:5
[INFO] [stdout]     |
[INFO] [stdout]  97 |   #[cfg(not(any(
[INFO] [stdout]     |  __________-
[INFO] [stdout]  98 | |     target_arch = "avr",
[INFO] [stdout]  99 | |     target_arch = "msp430",
[INFO] [stdout] 100 | |     portable_atomic_unsafe_assume_single_core,
[INFO] [stdout] 101 | | )))]
[INFO] [stdout]     | |__- the item is gated here
[INFO] [stdout] ...
[INFO] [stdout] 156 |   mod fallback;
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling heapless v0.9.2
[INFO] [stderr]    Compiling embedded-can v0.4.1
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling defmt-rtt v1.1.0
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling signature v2.2.0
[INFO] [stderr]    Compiling esp-config v0.6.1
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling ed25519 v2.2.3
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stdout] error[E0599]: no method named `to_ascii_lowercase` found for type `i8` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/esp-rom-sys-0.1.3/src/lib.rs:86:31
[INFO] [stdout]    |
[INFO] [stdout] 86 |             let val = (*s1_i).to_ascii_lowercase() as i32 - (*s2_i).to_ascii_lowercase() as i32;
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^ method not found in `i8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_ascii_lowercase` found for type `i8` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/esp-rom-sys-0.1.3/src/lib.rs:86:69
[INFO] [stdout]    |
[INFO] [stdout] 86 |             let val = (*s1_i).to_ascii_lowercase() as i32 - (*s2_i).to_ascii_lowercase() as i32;
[INFO] [stdout]    |                                                                     ^^^^^^^^^^^^^^^^^^ method not found in `i8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling embassy-time v0.5.0
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `esp-rom-sys` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `portable-atomic` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "37b8b1403dbf933d0996dc9f575684afe00fdf57edc3abeb5b63749af35c4322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37b8b1403dbf933d0996dc9f575684afe00fdf57edc3abeb5b63749af35c4322", kill_on_drop: false }`
[INFO] [stdout] 37b8b1403dbf933d0996dc9f575684afe00fdf57edc3abeb5b63749af35c4322
