[INFO] fetching crate kcat 0.1.6...
[INFO] checking kcat-0.1.6 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate kcat 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate kcat 0.1.6 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 kcat 0.1.6
[INFO] finished tweaking crates.io crate kcat 0.1.6
[INFO] tweaked toml for crates.io crate kcat 0.1.6 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 base64 v0.8.0
[INFO] [stderr]   Downloaded onig v3.2.2
[INFO] [stderr]   Downloaded syntect v2.1.0
[INFO] [stderr]   Downloaded onig_sys v68.2.1
[INFO] [stderr]   Downloaded plist v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] a80e679aa8e57ee692ea67b51350da45eb247005307fb3d756713807d6cc8c69
[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" "a80e679aa8e57ee692ea67b51350da45eb247005307fb3d756713807d6cc8c69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a80e679aa8e57ee692ea67b51350da45eb247005307fb3d756713807d6cc8c69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a80e679aa8e57ee692ea67b51350da45eb247005307fb3d756713807d6cc8c69", kill_on_drop: false }`
[INFO] [stdout] a80e679aa8e57ee692ea67b51350da45eb247005307fb3d756713807d6cc8c69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 0d5572cb9ee9df7f7f32aa26b1a2f895cec8f0e17c66a30d39850cab25f6178a
[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" "0d5572cb9ee9df7f7f32aa26b1a2f895cec8f0e17c66a30d39850cab25f6178a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling plist v0.2.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking rustc-demangle v0.1.17
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]    Compiling onig_sys v68.2.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking onig v3.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking syntect v2.1.0
[INFO] [stderr]     Checking kcat v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.73s
[INFO] running `Command { std: "docker" "inspect" "0d5572cb9ee9df7f7f32aa26b1a2f895cec8f0e17c66a30d39850cab25f6178a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5572cb9ee9df7f7f32aa26b1a2f895cec8f0e17c66a30d39850cab25f6178a", kill_on_drop: false }`
[INFO] [stdout] 0d5572cb9ee9df7f7f32aa26b1a2f895cec8f0e17c66a30d39850cab25f6178a