[INFO] cloning repository frogshead/rust-bluepill
[INFO] running `"git" "clone" "--bare" "git://github.com/frogshead/rust-bluepill.git" "work/cache/sources/gh/frogshead/rust-bluepill"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/frogshead/rust-bluepill'...
[INFO] running `"git" "clone" "work/cache/sources/gh/frogshead/rust-bluepill" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/frogshead/rust-bluepill"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/frogshead/rust-bluepill'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/frogshead/rust-bluepill" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/frogshead/rust-bluepill"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/frogshead/rust-bluepill'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c494a01d6ab38b2e59b6b1d7a1d63574ddde806a
[INFO] sha for GitHub repo frogshead/rust-bluepill: c494a01d6ab38b2e59b6b1d7a1d63574ddde806a
[INFO] validating manifest of frogshead/rust-bluepill on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of frogshead/rust-bluepill on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing frogshead/rust-bluepill
[INFO] finished frobbing frogshead/rust-bluepill
[INFO] frobbed toml for frogshead/rust-bluepill written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/frogshead/rust-bluepill/Cargo.toml
[INFO] started frobbing frogshead/rust-bluepill
[INFO] finished frobbing frogshead/rust-bluepill
[INFO] frobbed toml for frogshead/rust-bluepill written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/frogshead/rust-bluepill/Cargo.toml
[INFO] crate frogshead/rust-bluepill already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stm32f103xx v0.8.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking frogshead/rust-bluepill against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-4/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/frogshead/rust-bluepill:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9320ce23dce19c21880c6f7147b09bacf4af98b039acf8928d83621a7e9f0ad6
[INFO] running `"docker" "start" "-a" "9320ce23dce19c21880c6f7147b09bacf4af98b039acf8928d83621a7e9f0ad6"`
[INFO] [stderr]    Compiling cortex-m v0.4.3
[INFO] [stderr]     Checking untagged-option v0.1.1
[INFO] [stderr]     Checking bare-metal v0.1.1
[INFO] [stderr]     Checking nb v0.1.1
[INFO] [stderr] error[E0635]: unknown feature `const_unsafe_cell_new`
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.1/src/lib.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![feature(const_fn,const_unsafe_cell_new)]
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0635`.
[INFO] [stderr] error: Could not compile `bare-metal`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9320ce23dce19c21880c6f7147b09bacf4af98b039acf8928d83621a7e9f0ad6"`
[INFO] running `"docker" "rm" "-f" "9320ce23dce19c21880c6f7147b09bacf4af98b039acf8928d83621a7e9f0ad6"`
[INFO] [stdout] 9320ce23dce19c21880c6f7147b09bacf4af98b039acf8928d83621a7e9f0ad6