[INFO] fetching crate zkinterface 1.1.4...
[INFO] checking zkinterface-1.1.4 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate zkinterface 1.1.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate zkinterface 1.1.4 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 crates.io crate zkinterface 1.1.4
[INFO] finished tweaking crates.io crate zkinterface 1.1.4
[INFO] tweaked toml for crates.io crate zkinterface 1.1.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate zkinterface 1.1.4 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 smallvec v0.6.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 1eabeaf848f24233e22594bd1fd8cedd09d822fa09f9730f746be0965a15b4ea
[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" "1eabeaf848f24233e22594bd1fd8cedd09d822fa09f9730f746be0965a15b4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1eabeaf848f24233e22594bd1fd8cedd09d822fa09f9730f746be0965a15b4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eabeaf848f24233e22594bd1fd8cedd09d822fa09f9730f746be0965a15b4ea", kill_on_drop: false }`
[INFO] [stdout] 1eabeaf848f24233e22594bd1fd8cedd09d822fa09f9730f746be0965a15b4ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 0bdcefb69b040dee6d2cce8c701b5a00c0972330ae3dca8602cc3f785fae237d
[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" "0bdcefb69b040dee6d2cce8c701b5a00c0972330ae3dca8602cc3f785fae237d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling memchr v2.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]     Checking smallvec v0.6.7
[INFO] [stderr]     Checking flatbuffers v0.5.0
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling zkinterface v1.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.89s
[INFO] running `Command { std: "docker" "inspect" "0bdcefb69b040dee6d2cce8c701b5a00c0972330ae3dca8602cc3f785fae237d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bdcefb69b040dee6d2cce8c701b5a00c0972330ae3dca8602cc3f785fae237d", kill_on_drop: false }`
[INFO] [stdout] 0bdcefb69b040dee6d2cce8c701b5a00c0972330ae3dca8602cc3f785fae237d