[INFO] fetching crate howtocards 0.1.3...
[INFO] checking howtocards-0.1.3 against master#e3c43e64eceb00e13b1932229aa9b2d774e6af96 for pr-95953
[INFO] extracting crate howtocards 0.1.3 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate howtocards 0.1.3 on toolchain e3c43e64eceb00e13b1932229aa9b2d774e6af96
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e3c43e64eceb00e13b1932229aa9b2d774e6af96" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate howtocards 0.1.3
[INFO] finished tweaking crates.io crate howtocards 0.1.3
[INFO] tweaked toml for crates.io crate howtocards 0.1.3 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e3c43e64eceb00e13b1932229aa9b2d774e6af96" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e3c43e64eceb00e13b1932229aa9b2d774e6af96" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+e3c43e64eceb00e13b1932229aa9b2d774e6af96" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c49e92184b7332d38a0c6f9b4afa21ce9d7d653bd19df1ce0081ef90b1b5efe
[INFO] running `Command { std: "docker" "start" "-a" "3c49e92184b7332d38a0c6f9b4afa21ce9d7d653bd19df1ce0081ef90b1b5efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c49e92184b7332d38a0c6f9b4afa21ce9d7d653bd19df1ce0081ef90b1b5efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c49e92184b7332d38a0c6f9b4afa21ce9d7d653bd19df1ce0081ef90b1b5efe", kill_on_drop: false }`
[INFO] [stdout] 3c49e92184b7332d38a0c6f9b4afa21ce9d7d653bd19df1ce0081ef90b1b5efe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+e3c43e64eceb00e13b1932229aa9b2d774e6af96" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf449a9a636b330229d1c3ffb44569ae42c756c658972df298d1822c2389315e
[INFO] running `Command { std: "docker" "start" "-a" "bf449a9a636b330229d1c3ffb44569ae42c756c658972df298d1822c2389315e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling pq-sys v0.4.6
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]     Checking cpufeatures v0.2.2
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --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=b65cedb3bd8cf729 -C extra-filename=-b65cedb3bd8cf729 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `gimli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gimli --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gimli-0.26.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="read"' --cfg 'feature="read-core"' -C metadata=b7a84fadfbdd5082 -C extra-filename=-b7a84fadfbdd5082 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "bf449a9a636b330229d1c3ffb44569ae42c756c658972df298d1822c2389315e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf449a9a636b330229d1c3ffb44569ae42c756c658972df298d1822c2389315e", kill_on_drop: false }`
[INFO] [stdout] bf449a9a636b330229d1c3ffb44569ae42c756c658972df298d1822c2389315e