[INFO] cloning repository https://github.com/jkjunior/opencv_tensorflow_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkjunior/opencv_tensorflow_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkjunior%2Fopencv_tensorflow_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkjunior%2Fopencv_tensorflow_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2aa3900ba885cd4db70aac9a71590503dc10aa4f
[INFO] testing jkjunior/opencv_tensorflow_rust against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkjunior%2Fopencv_tensorflow_rust" "/workspace/builds/worker-54/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-54/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jkjunior/opencv_tensorflow_rust on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jkjunior/opencv_tensorflow_rust
[INFO] finished tweaking git repo https://github.com/jkjunior/opencv_tensorflow_rust
[INFO] tweaked toml for git repo https://github.com/jkjunior/opencv_tensorflow_rust written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] crate git repo https://github.com/jkjunior/opencv_tensorflow_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded if_rust_version v1.0.0
[INFO] [stderr]   Downloaded tensorflow-internal-macros v0.0.1
[INFO] [stderr]   Downloaded which v3.1.0
[INFO] [stderr]   Downloaded schannel v0.1.16
[INFO] [stderr]   Downloaded num-bigint v0.2.4
[INFO] [stderr]   Downloaded minreq v2.0.3
[INFO] [stderr]   Downloaded cpp v0.5.4
[INFO] [stderr]   Downloaded cpp_common v0.5.4
[INFO] [stderr]   Downloaded openssl-sys v0.9.53
[INFO] [stderr]   Downloaded cpp_macros v0.5.4
[INFO] [stderr]   Downloaded once_cell v1.2.0
[INFO] [stderr]   Downloaded cpp_build v0.5.4
[INFO] [stderr]   Downloaded curl v0.4.25
[INFO] [stderr]   Downloaded curl-sys v0.4.25
[INFO] [stderr]   Downloaded half v1.4.0
[INFO] [stderr]   Downloaded tensorflow-sys v0.17.0
[INFO] [stderr]   Downloaded tensorflow v0.14.0
[INFO] [stderr]   Downloaded opencv v0.29.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b133bd7f3788e3de76f12031ca8325f98c345d663588ad8b6fde9d24763c08e
[INFO] running `Command { std: "docker" "start" "-a" "0b133bd7f3788e3de76f12031ca8325f98c345d663588ad8b6fde9d24763c08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b133bd7f3788e3de76f12031ca8325f98c345d663588ad8b6fde9d24763c08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b133bd7f3788e3de76f12031ca8325f98c345d663588ad8b6fde9d24763c08e", kill_on_drop: false }`
[INFO] [stdout] 0b133bd7f3788e3de76f12031ca8325f98c345d663588ad8b6fde9d24763c08e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18ca7d04869c94985cd9019186f2d99a2421e5e488002985fcc4f162fe66e87f
[INFO] running `Command { std: "docker" "start" "-a" "18ca7d04869c94985cd9019186f2d99a2421e5e488002985fcc4f162fe66e87f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling if_rust_version v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling once_cell v1.2.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling opencv_rtsp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling half v1.4.0
[INFO] [stderr]    Compiling dtoa v0.4.4
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling minreq v2.0.3
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-bigint v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]  --> build.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let output = Command::new("sh").arg("build.sh").output().expect("failed to execute process");
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling filetime v0.2.8
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]    Compiling aligned_alloc v0.1.3
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling curl-sys v0.4.25
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling tensorflow-internal-macros v0.0.1
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling serde_yaml v0.8.11
[INFO] [stderr]    Compiling cpp_common v0.5.4
[INFO] [stderr]    Compiling cpp_build v0.5.4
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.11/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="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=8d13addf6ebf45c5 -C extra-filename=-8d13addf6ebf45c5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bd6e8e81ab7378d5.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5a4cffc873d2b583.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1256a373de2a2211.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" "18ca7d04869c94985cd9019186f2d99a2421e5e488002985fcc4f162fe66e87f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18ca7d04869c94985cd9019186f2d99a2421e5e488002985fcc4f162fe66e87f", kill_on_drop: false }`
[INFO] [stdout] 18ca7d04869c94985cd9019186f2d99a2421e5e488002985fcc4f162fe66e87f