[INFO] cloning repository https://github.com/syncjack/syncjack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syncjack/syncjack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyncjack%2Fsyncjack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyncjack%2Fsyncjack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bd23d4fedeb15b1ae3f9a8c91cffd6c89ecd9cd
[INFO] checking syncjack/syncjack against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyncjack%2Fsyncjack" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syncjack/syncjack on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/syncjack/syncjack
[INFO] finished tweaking git repo https://github.com/syncjack/syncjack
[INFO] tweaked toml for git repo https://github.com/syncjack/syncjack written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/syncjack/syncjack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.33
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.33
[INFO] [stderr]   Downloaded svg v0.5.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afc3d6f2526551d549a4f9782bd1d827c3432f18412f5f0be675b07659dfae70
[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" "afc3d6f2526551d549a4f9782bd1d827c3432f18412f5f0be675b07659dfae70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afc3d6f2526551d549a4f9782bd1d827c3432f18412f5f0be675b07659dfae70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc3d6f2526551d549a4f9782bd1d827c3432f18412f5f0be675b07659dfae70", kill_on_drop: false }`
[INFO] [stdout] afc3d6f2526551d549a4f9782bd1d827c3432f18412f5f0be675b07659dfae70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36ae4ad504a6d1a255447745908856234da4122288b2dcaa093499dace26c54c
[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" "36ae4ad504a6d1a255447745908856234da4122288b2dcaa093499dace26c54c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.33
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.33
[INFO] [stderr]     Checking svg v0.5.12
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.33
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.33
[INFO] [stderr]     Checking syncjack2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.82s
[INFO] running `Command { std: "docker" "inspect" "36ae4ad504a6d1a255447745908856234da4122288b2dcaa093499dace26c54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ae4ad504a6d1a255447745908856234da4122288b2dcaa093499dace26c54c", kill_on_drop: false }`
[INFO] [stdout] 36ae4ad504a6d1a255447745908856234da4122288b2dcaa093499dace26c54c