[INFO] cloning repository https://github.com/flutter-rs/cargo-flutter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flutter-rs/cargo-flutter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflutter-rs%2Fcargo-flutter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflutter-rs%2Fcargo-flutter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 017b71f70339da5c227464c1c2cb944f61376052
[INFO] checking flutter-rs/cargo-flutter against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflutter-rs%2Fcargo-flutter" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flutter-rs/cargo-flutter on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/flutter-rs/cargo-flutter
[INFO] finished tweaking git repo https://github.com/flutter-rs/cargo-flutter
[INFO] tweaked toml for git repo https://github.com/flutter-rs/cargo-flutter written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/flutter-rs/cargo-flutter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-workspace-hack v1.0.0
[INFO] [stderr]   Downloaded ureq v0.11.3
[INFO] [stderr]   Downloaded serde_ignored v0.1.1
[INFO] [stderr]   Downloaded lib-cargo-apk v0.5.1
[INFO] [stderr]   Downloaded rustfix v0.4.6
[INFO] [stderr]   Downloaded opener v0.4.1
[INFO] [stderr]   Downloaded home v0.5.3
[INFO] [stderr]   Downloaded jobserver v0.1.18
[INFO] [stderr]   Downloaded bytesize v1.0.0
[INFO] [stderr]   Downloaded git2-curl v0.11.0
[INFO] [stderr]   Downloaded chunked_transfer v1.0.0
[INFO] [stderr]   Downloaded git2 v0.10.2
[INFO] [stderr]   Downloaded im-rc v13.0.0
[INFO] [stderr]   Downloaded cargo-platform v0.1.0
[INFO] [stderr]   Downloaded qstring v0.7.0
[INFO] [stderr]   Downloaded libgit2-sys v0.9.2
[INFO] [stderr]   Downloaded sized-chunks v0.3.1
[INFO] [stderr]   Downloaded crates-io v0.29.0
[INFO] [stderr]   Downloaded cargo v0.41.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27dcd5b7cdcffbf664588f52afb2f92a4ffe200682fe108f7f8ca0ad26ed2d08
[INFO] running `Command { std: "docker" "start" "-a" "27dcd5b7cdcffbf664588f52afb2f92a4ffe200682fe108f7f8ca0ad26ed2d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27dcd5b7cdcffbf664588f52afb2f92a4ffe200682fe108f7f8ca0ad26ed2d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27dcd5b7cdcffbf664588f52afb2f92a4ffe200682fe108f7f8ca0ad26ed2d08", kill_on_drop: false }`
[INFO] [stdout] 27dcd5b7cdcffbf664588f52afb2f92a4ffe200682fe108f7f8ca0ad26ed2d08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7587412c39959dec08630d137c7d2dae6574124a5b3ce28ceed84335879cb48e
[INFO] running `Command { std: "docker" "start" "-a" "7587412c39959dec08630d137c7d2dae6574124a5b3ce28ceed84335879cb48e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]     Checking opener v0.4.1
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking chunked_transfer v1.0.0
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking qstring v0.7.0
[INFO] [stderr]     Checking socket2 v0.3.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking jobserver v0.1.18
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking num_cpus v1.11.1
[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 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.12/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --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=16d8be9382be4868 -C extra-filename=-16d8be9382be4868 --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: build failed
[INFO] running `Command { std: "docker" "inspect" "7587412c39959dec08630d137c7d2dae6574124a5b3ce28ceed84335879cb48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7587412c39959dec08630d137c7d2dae6574124a5b3ce28ceed84335879cb48e", kill_on_drop: false }`
[INFO] [stdout] 7587412c39959dec08630d137c7d2dae6574124a5b3ce28ceed84335879cb48e