[INFO] fetching crate eeprom 0.1.0...
[INFO] checking eeprom-0.1.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate eeprom 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate eeprom 0.1.0 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eeprom 0.1.0
[INFO] finished tweaking crates.io crate eeprom 0.1.0
[INFO] tweaked toml for crates.io crate eeprom 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded volatile-register v0.2.0
[INFO] [stderr]   Downloaded aligned v0.1.2
[INFO] [stderr]   Downloaded difference v1.0.0
[INFO] [stderr]   Downloaded pretty_assertions v0.3.4
[INFO] [stderr]   Downloaded bare-metal v0.1.3
[INFO] [stderr]   Downloaded cortex-m v0.3.1
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded stm32-hal v0.2.0
[INFO] [stderr]   Downloaded stm32f103xx v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] 7b7c4078964f799465fcfb7334c0ae01a4b38a8a537135e722b2179cd67193f3
[INFO] running `Command { std: "docker" "start" "-a" "7b7c4078964f799465fcfb7334c0ae01a4b38a8a537135e722b2179cd67193f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b7c4078964f799465fcfb7334c0ae01a4b38a8a537135e722b2179cd67193f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b7c4078964f799465fcfb7334c0ae01a4b38a8a537135e722b2179cd67193f3", kill_on_drop: false }`
[INFO] [stdout] 7b7c4078964f799465fcfb7334c0ae01a4b38a8a537135e722b2179cd67193f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85b338afe438d6695cb9666321fabdbe54656308d0b73cc070e6c901167e5b06
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85b338afe438d6695cb9666321fabdbe54656308d0b73cc070e6c901167e5b06", kill_on_drop: false }`
[INFO] [stderr]     Checking stm32-hal v0.2.0
[INFO] [stderr]     Checking difference v1.0.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stdout] error[E0635]: unknown feature `const_size_of`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stm32-hal-0.2.0/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_size_of)]
[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 `stm32-hal`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "85b338afe438d6695cb9666321fabdbe54656308d0b73cc070e6c901167e5b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b338afe438d6695cb9666321fabdbe54656308d0b73cc070e6c901167e5b06", kill_on_drop: false }`
[INFO] [stdout] 85b338afe438d6695cb9666321fabdbe54656308d0b73cc070e6c901167e5b06