[INFO] crate cortex-m-rt 0.6.12 is already in cache
[INFO] testing cortex-m-rt-0.6.12 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate cortex-m-rt 0.6.12 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cortex-m-rt 0.6.12 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cortex-m-rt 0.6.12
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cortex-m-rt 0.6.12
[INFO] tweaked toml for crates.io crate cortex-m-rt 0.6.12 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cortex-m-rt 0.6.12 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec5662f76fe9a33dc9a907bceff6a4548f772464c477feed53c4b4a9d8b1e416
[INFO] running `"docker" "start" "-a" "ec5662f76fe9a33dc9a907bceff6a4548f772464c477feed53c4b4a9d8b1e416"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.97s
[INFO] running `"docker" "inspect" "ec5662f76fe9a33dc9a907bceff6a4548f772464c477feed53c4b4a9d8b1e416"`
[INFO] running `"docker" "rm" "-f" "ec5662f76fe9a33dc9a907bceff6a4548f772464c477feed53c4b4a9d8b1e416"`
[INFO] [stdout] ec5662f76fe9a33dc9a907bceff6a4548f772464c477feed53c4b4a9d8b1e416
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ece9853d9207bd84da00af0b14dd59db7669b80716cd2224f3cbf56ab63e0e82
[INFO] running `"docker" "start" "-a" "ece9853d9207bd84da00af0b14dd59db7669b80716cd2224f3cbf56ab63e0e82"`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling compiletest_rs v0.4.0
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling filetime v0.2.8
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling as-slice v0.1.0
[INFO] [stderr]    Compiling tester v0.7.0
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling aligned v0.3.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling rustfix v0.4.6
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[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: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[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: could not compile `cortex-m-rt`.
[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: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[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: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[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: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[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: entry symbol `main` declared multiple times
[INFO] [stderr]   |
[INFO] [stderr]   = help: did you use `#[no_mangle]` on `fn main`? Use `#[start]` instead
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cortex-m-rt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ece9853d9207bd84da00af0b14dd59db7669b80716cd2224f3cbf56ab63e0e82"`
[INFO] running `"docker" "rm" "-f" "ece9853d9207bd84da00af0b14dd59db7669b80716cd2224f3cbf56ab63e0e82"`
[INFO] [stdout] ece9853d9207bd84da00af0b14dd59db7669b80716cd2224f3cbf56ab63e0e82