[INFO] cloning repository https://github.com/inferiorhumanorgans/sam3x8e-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/inferiorhumanorgans/sam3x8e-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finferiorhumanorgans%2Fsam3x8e-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finferiorhumanorgans%2Fsam3x8e-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a20f2b48fd2f8e93a0533554fe69198ce5f0790
[INFO] testing inferiorhumanorgans/sam3x8e-rs against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finferiorhumanorgans%2Fsam3x8e-rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/inferiorhumanorgans/sam3x8e-rs on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-8/source/.cargo/config
[INFO] started tweaking git repo https://github.com/inferiorhumanorgans/sam3x8e-rs
[INFO] finished tweaking git repo https://github.com/inferiorhumanorgans/sam3x8e-rs
[INFO] tweaked toml for git repo https://github.com/inferiorhumanorgans/sam3x8e-rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/inferiorhumanorgans/sam3x8e-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-8/source/sam3x8e/Cargo.toml: unused manifest key: package.bench
[INFO] [stderr] warning: /workspace/builds/worker-8/source/sam3x8e/Cargo.toml: unused manifest key: package.test
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 86a5cc5e746743b488c2297acf29ad75ff99a6d3c8f077e8a1dc36ab5ef0309b
[INFO] running `Command { std: "docker" "start" "-a" "86a5cc5e746743b488c2297acf29ad75ff99a6d3c8f077e8a1dc36ab5ef0309b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86a5cc5e746743b488c2297acf29ad75ff99a6d3c8f077e8a1dc36ab5ef0309b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a5cc5e746743b488c2297acf29ad75ff99a6d3c8f077e8a1dc36ab5ef0309b", kill_on_drop: false }`
[INFO] [stdout] 86a5cc5e746743b488c2297acf29ad75ff99a6d3c8f077e8a1dc36ab5ef0309b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9f5e3a692e856b149cc4eaeed9fcab346b95ea067cc86540cea47b55dfbaa638
[INFO] running `Command { std: "docker" "start" "-a" "9f5e3a692e856b149cc4eaeed9fcab346b95ea067cc86540cea47b55dfbaa638", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/sam3x8e/Cargo.toml: unused manifest key: package.bench
[INFO] [stderr] warning: /opt/rustwide/workdir/sam3x8e/Cargo.toml: unused manifest key: package.test
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling sam3x8e v0.1.1 (/opt/rustwide/workdir/sam3x8e)
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling as-slice v0.1.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling aligned v0.3.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.6
[INFO] [stderr]    Compiling sam3x8e-hal-codegen v0.1.0 (/opt/rustwide/workdir/sam3x8e-hal-codegen)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> sam3x8e-hal-codegen/src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(proc_macro_span)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> sam3x8e-hal-codegen/src/lib.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `sam3x8e-hal-codegen` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9f5e3a692e856b149cc4eaeed9fcab346b95ea067cc86540cea47b55dfbaa638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f5e3a692e856b149cc4eaeed9fcab346b95ea067cc86540cea47b55dfbaa638", kill_on_drop: false }`
[INFO] [stdout] 9f5e3a692e856b149cc4eaeed9fcab346b95ea067cc86540cea47b55dfbaa638