[INFO] fetching crate blues-notecard 0.3.1...
[INFO] testing blues-notecard-0.3.1 against 1.76.0 for beta-1.77-1
[INFO] extracting crate blues-notecard 0.3.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate blues-notecard 0.3.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blues-notecard 0.3.1
[INFO] finished tweaking crates.io crate blues-notecard 0.3.1
[INFO] tweaked toml for crates.io crate blues-notecard 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nb v0.1.3
[INFO] [stderr]   Downloaded defmt v0.3.6
[INFO] [stderr]   Downloaded nb v1.1.0
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded defmt-macros v0.3.7
[INFO] [stderr]   Downloaded embedded-hal v0.2.7
[INFO] [stderr]   Downloaded defmt-parser v0.3.4
[INFO] [stderr]   Downloaded serde-json-core v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd383bd188f8b06e2ba0a923b07b3e237f11cbe8ee912a153bf97963150369ce
[INFO] running `Command { std: "docker" "start" "-a" "cd383bd188f8b06e2ba0a923b07b3e237f11cbe8ee912a153bf97963150369ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd383bd188f8b06e2ba0a923b07b3e237f11cbe8ee912a153bf97963150369ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd383bd188f8b06e2ba0a923b07b3e237f11cbe8ee912a153bf97963150369ce", kill_on_drop: false }`
[INFO] [stdout] cd383bd188f8b06e2ba0a923b07b3e237f11cbe8ee912a153bf97963150369ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efddaabc8491ae8008a2790f45262c6ebd0f305912ddbc60841ab3c207715444
[INFO] running `Command { std: "docker" "start" "-a" "efddaabc8491ae8008a2790f45262c6ebd0f305912ddbc60841ab3c207715444", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling defmt-macros v0.3.7
[INFO] [stderr]    Compiling defmt v0.3.6
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling defmt-parser v0.3.4
[INFO] [stderr]    Compiling serde-json-core v0.4.0
[INFO] [stderr]    Compiling blues-notecard v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(split_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(type_changing_struct_update)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(split_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blues-notecard` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "efddaabc8491ae8008a2790f45262c6ebd0f305912ddbc60841ab3c207715444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efddaabc8491ae8008a2790f45262c6ebd0f305912ddbc60841ab3c207715444", kill_on_drop: false }`
[INFO] [stdout] efddaabc8491ae8008a2790f45262c6ebd0f305912ddbc60841ab3c207715444
[INFO] testing blues-notecard-0.3.1 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate blues-notecard 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate blues-notecard 0.3.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blues-notecard 0.3.1
[INFO] finished tweaking crates.io crate blues-notecard 0.3.1
[INFO] tweaked toml for crates.io crate blues-notecard 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7549de3933b265a16fa54cd96d6756432dfe7d3ef7026f272565de530517b719
[INFO] running `Command { std: "docker" "start" "-a" "7549de3933b265a16fa54cd96d6756432dfe7d3ef7026f272565de530517b719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7549de3933b265a16fa54cd96d6756432dfe7d3ef7026f272565de530517b719", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7549de3933b265a16fa54cd96d6756432dfe7d3ef7026f272565de530517b719", kill_on_drop: false }`
[INFO] [stdout] 7549de3933b265a16fa54cd96d6756432dfe7d3ef7026f272565de530517b719
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2d132f231bf9b5dbaaab93294b0b8dd7bb30e5828a6d34359513616f58f1b19
[INFO] running `Command { std: "docker" "start" "-a" "f2d132f231bf9b5dbaaab93294b0b8dd7bb30e5828a6d34359513616f58f1b19", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling defmt-macros v0.3.7
[INFO] [stderr]    Compiling defmt v0.3.6
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling ryu v1.0.16
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling defmt-parser v0.3.4
[INFO] [stderr]    Compiling serde-json-core v0.4.0
[INFO] [stderr]    Compiling blues-notecard v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(split_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(type_changing_struct_update)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(split_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `split_array_ref` found for struct `Vec<u8, BUF_SIZE>` in the current scope
[INFO] [stdout]    --> src/lib.rs:187:37
[INFO] [stdout]     |
[INFO] [stdout] 187 |             let (buf, _) = self.buf.split_array_ref::<B>();
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^ help: there is a method with a similar name: `split_at`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blues-notecard` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "f2d132f231bf9b5dbaaab93294b0b8dd7bb30e5828a6d34359513616f58f1b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d132f231bf9b5dbaaab93294b0b8dd7bb30e5828a6d34359513616f58f1b19", kill_on_drop: false }`
[INFO] [stdout] f2d132f231bf9b5dbaaab93294b0b8dd7bb30e5828a6d34359513616f58f1b19
