[INFO] fetching crate postform_rtt 0.3.0...
[INFO] checking postform_rtt-0.3.0 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate postform_rtt 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate postform_rtt 0.3.0 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate postform_rtt 0.3.0
[INFO] finished tweaking crates.io crate postform_rtt 0.3.0
[INFO] tweaked toml for crates.io crate postform_rtt 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate postform_rtt 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitvec v0.17.4
[INFO] [stderr]   Downloaded color-eyre v0.5.10
[INFO] [stderr]   Downloaded radium v0.3.0
[INFO] [stderr]   Downloaded cobs v0.1.4
[INFO] [stderr]   Downloaded libftdi1-sys v1.0.0
[INFO] [stderr]   Downloaded object v0.21.1
[INFO] [stderr]   Downloaded probe-rs-t2rust v0.6.0
[INFO] [stderr]   Downloaded probe-rs-rtt v0.4.0
[INFO] [stderr]   Downloaded postform_decoder v0.3.0
[INFO] [stderr]   Downloaded probe-rs v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1268e354424eed40e66aa92d3c3ab67f44d315d36cdf3ba46ae2c197b26dfc63
[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" "1268e354424eed40e66aa92d3c3ab67f44d315d36cdf3ba46ae2c197b26dfc63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1268e354424eed40e66aa92d3c3ab67f44d315d36cdf3ba46ae2c197b26dfc63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1268e354424eed40e66aa92d3c3ab67f44d315d36cdf3ba46ae2c197b26dfc63", kill_on_drop: false }`
[INFO] [stdout] 1268e354424eed40e66aa92d3c3ab67f44d315d36cdf3ba46ae2c197b26dfc63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b5fd972e4e746c75f723ee8e669158b47976c78f8ea7b32fe09940497d1bfc4
[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" "7b5fd972e4e746c75f723ee8e669158b47976c78f8ea7b32fe09940497d1bfc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.62
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling libflate_lz77 v1.0.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling dtoa v0.4.7
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]     Checking wasmparser v0.57.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking ihex v3.0.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking owo-colors v1.3.0
[INFO] [stderr]     Checking svg v0.8.2
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]     Checking cobs v0.1.4
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling clang-sys v1.1.1
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling libftdi1-sys v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling libflate v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking tracing-subscriber v0.2.16
[INFO] [stderr]    Compiling hidapi v1.2.5
[INFO] [stderr]    Compiling tar v0.4.33
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling bindgen v0.57.0
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling libusb1-sys v0.4.4
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]     Checking rusb v0.6.5
[INFO] [stderr]     Checking jaylink v0.1.5
[INFO] [stderr] error: could not compile `regex`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-1.4.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="aho-corasick"' --cfg 'feature="memchr"' --cfg 'feature="perf"' --cfg 'feature="perf-cache"' --cfg 'feature="perf-dfa"' --cfg 'feature="perf-inline"' --cfg 'feature="perf-literal"' --cfg 'feature="std"' --cfg 'feature="thread_local"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=dcd517fca2f12e75 -C extra-filename=-dcd517fca2f12e75 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern aho_corasick=/opt/rustwide/target/debug/deps/libaho_corasick-ab40b2e2ca15b714.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-3ae94b7d04edf574.rmeta --extern regex_syntax=/opt/rustwide/target/debug/deps/libregex_syntax-8fd54b75d3f23f91.rmeta --extern thread_local=/opt/rustwide/target/debug/deps/libthread_local-da88d34ba97b65f8.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7b5fd972e4e746c75f723ee8e669158b47976c78f8ea7b32fe09940497d1bfc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b5fd972e4e746c75f723ee8e669158b47976c78f8ea7b32fe09940497d1bfc4", kill_on_drop: false }`
[INFO] [stdout] 7b5fd972e4e746c75f723ee8e669158b47976c78f8ea7b32fe09940497d1bfc4