[INFO] cloning repository https://github.com/dflemstr/seven-segment-display
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dflemstr/seven-segment-display" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdflemstr%2Fseven-segment-display", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdflemstr%2Fseven-segment-display'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37b9c8aeb15eb63900de1261da6400cdb1936709
[INFO] building dflemstr/seven-segment-display against master#222c5724ecc922fe67815f428c19f82c129d9386 for pr-97334
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdflemstr%2Fseven-segment-display" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dflemstr/seven-segment-display on toolchain 222c5724ecc922fe67815f428c19f82c129d9386
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-14/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/dflemstr/seven-segment-display
[INFO] finished tweaking git repo https://github.com/dflemstr/seven-segment-display
[INFO] tweaked toml for git repo https://github.com/dflemstr/seven-segment-display written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dflemstr/seven-segment-display already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded panic-abort v0.3.2
[INFO] [stderr]   Downloaded array-init v2.0.0
[INFO] [stderr]   Downloaded avr-device v0.3.0
[INFO] [stderr]   Downloaded avr-device-macros v0.3.0
[INFO] [stderr]   Downloaded ringbuffer v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "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] 8a5353e9fb29352714ea6419ffd8ee100ff6e19a8a7a701f211d3fa630a937df
[INFO] running `Command { std: "docker" "start" "-a" "8a5353e9fb29352714ea6419ffd8ee100ff6e19a8a7a701f211d3fa630a937df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a5353e9fb29352714ea6419ffd8ee100ff6e19a8a7a701f211d3fa630a937df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5353e9fb29352714ea6419ffd8ee100ff6e19a8a7a701f211d3fa630a937df", kill_on_drop: false }`
[INFO] [stdout] 8a5353e9fb29352714ea6419ffd8ee100ff6e19a8a7a701f211d3fa630a937df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+222c5724ecc922fe67815f428c19f82c129d9386" "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] 6018b98cf17e35c87a6a87af2ad73187134c4480bfb34a5870850e66fdbe2094
[INFO] running `Command { std: "docker" "start" "-a" "6018b98cf17e35c87a6a87af2ad73187134c4480bfb34a5870850e66fdbe2094", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling array-init v2.0.0
[INFO] [stderr]    Compiling panic-abort v0.3.2
[INFO] [stderr]    Compiling arrayvec v0.7.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling ringbuffer v0.7.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]    Compiling avr-device-macros v0.3.0
[INFO] [stderr]    Compiling avr-device v0.3.0
[INFO] [stderr]    Compiling ufmt v0.1.0
[INFO] [stdout] error[E0635]: unknown feature `llvm_asm`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/avr-device-0.3.0/src/lib.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | #![feature(llvm_asm)]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avr-device` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6018b98cf17e35c87a6a87af2ad73187134c4480bfb34a5870850e66fdbe2094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6018b98cf17e35c87a6a87af2ad73187134c4480bfb34a5870850e66fdbe2094", kill_on_drop: false }`
[INFO] [stdout] 6018b98cf17e35c87a6a87af2ad73187134c4480bfb34a5870850e66fdbe2094