[INFO] fetching crate r3_support_rza1 0.2.2...
[INFO] testing r3_support_rza1-0.2.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate r3_support_rza1 0.2.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate r3_support_rza1 0.2.2
[INFO] finished tweaking crates.io crate r3_support_rza1 0.2.2
[INFO] tweaked toml for crates.io crate r3_support_rza1 0.2.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate r3_support_rza1 0.2.2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded r3_portkit v0.2.3
[INFO] [stderr]   Downloaded tock-registers v0.7.0
[INFO] [stderr]   Downloaded void v1.0.2
[INFO] [stderr]   Downloaded r3_port_arm v0.2.3
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded r3_core v0.1.4
[INFO] [stderr]   Downloaded r3 v0.2.4
[INFO] [stderr]   Downloaded r3_kernel v0.1.4
[INFO] [stderr]   Downloaded nb v1.1.0
[INFO] [stderr]   Downloaded r0 v1.0.0
[INFO] [stderr]   Downloaded rza1 v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10c39c01c8f0e4f0a327b290bbd82096e05cc86622cb0ee3f7a909825a1b5162
[INFO] running `Command { std: "docker" "start" "-a" "10c39c01c8f0e4f0a327b290bbd82096e05cc86622cb0ee3f7a909825a1b5162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10c39c01c8f0e4f0a327b290bbd82096e05cc86622cb0ee3f7a909825a1b5162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c39c01c8f0e4f0a327b290bbd82096e05cc86622cb0ee3f7a909825a1b5162", kill_on_drop: false }`
[INFO] [stdout] 10c39c01c8f0e4f0a327b290bbd82096e05cc86622cb0ee3f7a909825a1b5162
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e53745a75871c01353bb3c225d204c58764cef30dbcf0a2790970e027156126
[INFO] running `Command { std: "docker" "start" "-a" "1e53745a75871c01353bb3c225d204c58764cef30dbcf0a2790970e027156126", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling seq-macro v0.3.6
[INFO] [stderr]    Compiling elain v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling r3_port_arm v0.2.3
[INFO] [stderr]    Compiling tock-registers v0.7.0
[INFO] [stderr]    Compiling r0 v1.0.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling rza1 v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tock-registers-0.7.0/src/lib.rs:56:1
[INFO] [stdout]    |
[INFO] [stdout] 56 | #![feature(const_fn_trait_bound)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `const_fn_trait_bound` has been stable since `1.61.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tock-registers` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1e53745a75871c01353bb3c225d204c58764cef30dbcf0a2790970e027156126", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e53745a75871c01353bb3c225d204c58764cef30dbcf0a2790970e027156126", kill_on_drop: false }`
[INFO] [stdout] 1e53745a75871c01353bb3c225d204c58764cef30dbcf0a2790970e027156126