[INFO] cloning repository https://github.com/Davenport-Physics/ArduinoProjectsBookRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Davenport-Physics/ArduinoProjectsBookRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavenport-Physics%2FArduinoProjectsBookRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavenport-Physics%2FArduinoProjectsBookRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9284090932f65d693c515bba7128c10a6465549e
[INFO] testing Davenport-Physics/ArduinoProjectsBookRust against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavenport-Physics%2FArduinoProjectsBookRust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust
[INFO] finished tweaking git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust
[INFO] tweaked toml for git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rahix/avr-hal`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-macros v0.2.0
[INFO] [stderr]   Downloaded avr-device-macros v0.5.2
[INFO] [stderr]   Downloaded ufmt v0.1.2
[INFO] [stderr]   Downloaded embedded-storage v0.2.0
[INFO] [stderr]   Downloaded ufmt_float v0.2.0
[INFO] [stderr]   Downloaded avr-device v0.5.2
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9eccad85c96adb4486bde5321d01587721ff0b9da40c72606ada48e2b8937142
[INFO] running `Command { std: "docker" "start" "-a" "9eccad85c96adb4486bde5321d01587721ff0b9da40c72606ada48e2b8937142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eccad85c96adb4486bde5321d01587721ff0b9da40c72606ada48e2b8937142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eccad85c96adb4486bde5321d01587721ff0b9da40c72606ada48e2b8937142", kill_on_drop: false }`
[INFO] [stdout] 9eccad85c96adb4486bde5321d01587721ff0b9da40c72606ada48e2b8937142
[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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e07608e1f4590fae34b860bdff512414c4b9d528e9c93e6a77564b44194db96
[INFO] running `Command { std: "docker" "start" "-a" "5e07608e1f4590fae34b860bdff512414c4b9d528e9c93e6a77564b44194db96", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling bare-metal v1.0.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling embedded-storage v0.2.0
[INFO] [stderr]    Compiling micromath v2.0.0
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling avr-hal-generic v0.1.0 (https://github.com/rahix/avr-hal?rev=7dfa6d322b9df98b2d98afe0e14a97afe0187ac1#7dfa6d32)
[INFO] [stderr]    Compiling avr-device-macros v0.5.2
[INFO] [stderr]    Compiling ufmt-macros v0.2.0
[INFO] [stderr]    Compiling ufmt-macros v0.3.0
[INFO] [stderr]    Compiling ufmt v0.2.0
[INFO] [stderr]    Compiling ufmt v0.1.2
[INFO] [stderr]    Compiling avr-device v0.5.2
[INFO] [stderr]    Compiling ufmt_float v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/avr-hal-f3855d5807fdfd57/7dfa6d3/avr-hal-generic/src/lib.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(avr_hal_asm_macro, feature(asm_experimental_arch))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avr-hal-generic` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5e07608e1f4590fae34b860bdff512414c4b9d528e9c93e6a77564b44194db96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e07608e1f4590fae34b860bdff512414c4b9d528e9c93e6a77564b44194db96", kill_on_drop: false }`
[INFO] [stdout] 5e07608e1f4590fae34b860bdff512414c4b9d528e9c93e6a77564b44194db96
[INFO] testing Davenport-Physics/ArduinoProjectsBookRust against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDavenport-Physics%2FArduinoProjectsBookRust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust
[INFO] finished tweaking git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust
[INFO] tweaked toml for git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Davenport-Physics/ArduinoProjectsBookRust 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-2023-12-22" "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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 652370ee0fadfe6f46c36940e7f01a063c3f61a19c85ecb7b1c7524cae3a0331
[INFO] running `Command { std: "docker" "start" "-a" "652370ee0fadfe6f46c36940e7f01a063c3f61a19c85ecb7b1c7524cae3a0331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "652370ee0fadfe6f46c36940e7f01a063c3f61a19c85ecb7b1c7524cae3a0331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652370ee0fadfe6f46c36940e7f01a063c3f61a19c85ecb7b1c7524cae3a0331", kill_on_drop: false }`
[INFO] [stdout] 652370ee0fadfe6f46c36940e7f01a063c3f61a19c85ecb7b1c7524cae3a0331
[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-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3c5e0bc75e1b6c080c440c0aef5f9282ec95e14b65dc7d7dcc2e78ab6442242
[INFO] running `Command { std: "docker" "start" "-a" "a3c5e0bc75e1b6c080c440c0aef5f9282ec95e14b65dc7d7dcc2e78ab6442242", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling bare-metal v1.0.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling embedded-storage v0.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling micromath v2.0.0
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling avr-hal-generic v0.1.0 (https://github.com/rahix/avr-hal?rev=7dfa6d322b9df98b2d98afe0e14a97afe0187ac1#7dfa6d32)
[INFO] [stderr]    Compiling avr-device-macros v0.5.2
[INFO] [stderr]    Compiling ufmt-macros v0.2.0
[INFO] [stderr]    Compiling ufmt-macros v0.3.0
[INFO] [stderr]    Compiling ufmt v0.2.0
[INFO] [stderr]    Compiling avr-device v0.5.2
[INFO] [stderr]    Compiling ufmt v0.1.2
[INFO] [stderr]    Compiling ufmt_float v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/avr-hal-f3855d5807fdfd57/7dfa6d3/avr-hal-generic/src/lib.rs:2:32
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(avr_hal_asm_macro, feature(asm_experimental_arch))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avr-hal-generic` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a3c5e0bc75e1b6c080c440c0aef5f9282ec95e14b65dc7d7dcc2e78ab6442242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3c5e0bc75e1b6c080c440c0aef5f9282ec95e14b65dc7d7dcc2e78ab6442242", kill_on_drop: false }`
[INFO] [stdout] a3c5e0bc75e1b6c080c440c0aef5f9282ec95e14b65dc7d7dcc2e78ab6442242
