[INFO] fetching crate cantact-driver 0.0.6...
[INFO] checking cantact-driver-0.0.6 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate cantact-driver 0.0.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cantact-driver 0.0.6 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cantact-driver 0.0.6
[INFO] finished tweaking crates.io crate cantact-driver 0.0.6
[INFO] tweaked toml for crates.io crate cantact-driver 0.0.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc-impl v0.3.6
[INFO] [stderr]   Downloaded inventory-impl v0.1.9
[INFO] [stderr]   Downloaded indoc v0.3.6
[INFO] [stderr]   Downloaded inventory v0.1.9
[INFO] [stderr]   Downloaded libusb1-sys v0.3.7
[INFO] [stderr]   Downloaded pyo3cls v0.10.1
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.10.1
[INFO] [stderr]   Downloaded pyo3 v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef60c527255afc0fd097a695338eb6f9804a7561ff0d7eae9d76565a5e44352b
[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" "ef60c527255afc0fd097a695338eb6f9804a7561ff0d7eae9d76565a5e44352b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef60c527255afc0fd097a695338eb6f9804a7561ff0d7eae9d76565a5e44352b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef60c527255afc0fd097a695338eb6f9804a7561ff0d7eae9d76565a5e44352b", kill_on_drop: false }`
[INFO] [stdout] ef60c527255afc0fd097a695338eb6f9804a7561ff0d7eae9d76565a5e44352b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f0bd5225d2a52daecc4c8d236f7105dd89ed556c57b9a848b1df3e3fe582fbf
[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" "5f0bd5225d2a52daecc4c8d236f7105dd89ed556c57b9a848b1df3e3fe582fbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling cantact-driver v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling filetime v0.2.13
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling tar v0.4.30
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling libusb1-sys v0.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.32s
[INFO] running `Command { std: "docker" "inspect" "5f0bd5225d2a52daecc4c8d236f7105dd89ed556c57b9a848b1df3e3fe582fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f0bd5225d2a52daecc4c8d236f7105dd89ed556c57b9a848b1df3e3fe582fbf", kill_on_drop: false }`
[INFO] [stdout] 5f0bd5225d2a52daecc4c8d236f7105dd89ed556c57b9a848b1df3e3fe582fbf