[INFO] cloning repository https://github.com/JakWai01/avr-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JakWai01/avr-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakWai01%2Favr-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakWai01%2Favr-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ec0f4d403c363bf6428ee71488ae8fd53aa89ff
[INFO] testing JakWai01/avr-rs against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJakWai01%2Favr-rs" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JakWai01/avr-rs on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JakWai01/avr-rs
[INFO] finished tweaking git repo https://github.com/JakWai01/avr-rs
[INFO] tweaked toml for git repo https://github.com/JakWai01/avr-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/JakWai01/avr-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] warning: unused manifest key: unstable
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb997a7741a1a55eb79239e2e9e143319fce627632e107519254b25680261454
[INFO] running `Command { std: "docker" "start" "-a" "fb997a7741a1a55eb79239e2e9e143319fce627632e107519254b25680261454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb997a7741a1a55eb79239e2e9e143319fce627632e107519254b25680261454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb997a7741a1a55eb79239e2e9e143319fce627632e107519254b25680261454", kill_on_drop: false }`
[INFO] [stdout] fb997a7741a1a55eb79239e2e9e143319fce627632e107519254b25680261454
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd8cf3f88556247deb50339da1456512364482dc46454ee3d0899f58d83fbb72
[INFO] running `Command { std: "docker" "start" "-a" "dd8cf3f88556247deb50339da1456512364482dc46454ee3d0899f58d83fbb72", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: build
[INFO] [stderr] warning: unused manifest key: unstable
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling avr-std-stub v1.0.3
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling embedded-hal v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling xmltree v0.10.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling target-cpu-fetch v0.1.3
[INFO] [stderr]    Compiling avr-mcu v0.3.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling target-cpu-macro v0.1.3
[INFO] [stderr]    Compiling ruduino v0.3.2
[INFO] [stderr]    Compiling const_env_impl--value v0.1.2
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]    Compiling avr-device-macros v0.2.3
[INFO] [stderr]    Compiling const_env--value v0.1.2
[INFO] [stderr]    Compiling avr-config v2.0.1
[INFO] [stderr]    Compiling avr_delay v0.3.2
[INFO] [stderr]    Compiling avr-device v0.2.3
[INFO] [stdout] error: couldn't allocate input reg for constraint 'w'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr_delay-0.3.2/src/lib.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         unsafe {llvm_asm!("1: sbiw $0,1
[INFO] [stdout]    |                 ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't allocate input reg for constraint 'w'
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr_delay-0.3.2/src/lib.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |     unsafe {llvm_asm!("1: sbiw $0,1
[INFO] [stdout]    |             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ruduino-0.3.2/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avr_delay` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "dd8cf3f88556247deb50339da1456512364482dc46454ee3d0899f58d83fbb72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd8cf3f88556247deb50339da1456512364482dc46454ee3d0899f58d83fbb72", kill_on_drop: false }`
[INFO] [stdout] dd8cf3f88556247deb50339da1456512364482dc46454ee3d0899f58d83fbb72