[INFO] crate panic-semihosting 0.5.3 is already in cache
[INFO] testing panic-semihosting-0.5.3 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate panic-semihosting 0.5.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate panic-semihosting 0.5.3 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate panic-semihosting 0.5.3
[INFO] finished tweaking crates.io crate panic-semihosting 0.5.3
[INFO] tweaked toml for crates.io crate panic-semihosting 0.5.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "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] fe344f8475f7cd23c0648bc8779ea3d1db28b48dd2f6987b7192ccba2ba30d8e
[INFO] running `"docker" "start" "-a" "fe344f8475f7cd23c0648bc8779ea3d1db28b48dd2f6987b7192ccba2ba30d8e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling panic-semihosting v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "fe344f8475f7cd23c0648bc8779ea3d1db28b48dd2f6987b7192ccba2ba30d8e"`
[INFO] running `"docker" "rm" "-f" "fe344f8475f7cd23c0648bc8779ea3d1db28b48dd2f6987b7192ccba2ba30d8e"`
[INFO] [stdout] fe344f8475f7cd23c0648bc8779ea3d1db28b48dd2f6987b7192ccba2ba30d8e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "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] 93a0e212b9c133de331189b939ffe359ec5135687ef3fd6e9e5a02a5d5aea85a
[INFO] running `"docker" "start" "-a" "93a0e212b9c133de331189b939ffe359ec5135687ef3fd6e9e5a02a5d5aea85a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling panic-semihosting v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stderr]   --> src/lib.rs:77:1
[INFO] [stderr]    |
[INFO] [stderr] 77 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stderr] 78 | |     interrupt::disable();
[INFO] [stderr] 79 | |
[INFO] [stderr] 80 | |     if let Ok(mut hstdout) = hio::hstdout() {
[INFO] [stderr] ...  |
[INFO] [stderr] 94 | |     loop {}
[INFO] [stderr] 95 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0152`.
[INFO] [stderr] error: could not compile `panic-semihosting`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "93a0e212b9c133de331189b939ffe359ec5135687ef3fd6e9e5a02a5d5aea85a"`
[INFO] running `"docker" "rm" "-f" "93a0e212b9c133de331189b939ffe359ec5135687ef3fd6e9e5a02a5d5aea85a"`
[INFO] [stdout] 93a0e212b9c133de331189b939ffe359ec5135687ef3fd6e9e5a02a5d5aea85a