[INFO] fetching crate c-ares-resolver 7.2.1...
[INFO] checking c-ares-resolver-7.2.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate c-ares-resolver 7.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate c-ares-resolver 7.2.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate c-ares-resolver 7.2.1
[INFO] finished tweaking crates.io crate c-ares-resolver 7.2.1
[INFO] tweaked toml for crates.io crate c-ares-resolver 7.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate c-ares-resolver 7.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9b0ba5e8df374219f3df0b4d67a6506ff6f46f8dc84184aecf6d01faf3d9da3
[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" "a9b0ba5e8df374219f3df0b4d67a6506ff6f46f8dc84184aecf6d01faf3d9da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9b0ba5e8df374219f3df0b4d67a6506ff6f46f8dc84184aecf6d01faf3d9da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b0ba5e8df374219f3df0b4d67a6506ff6f46f8dc84184aecf6d01faf3d9da3", kill_on_drop: false }`
[INFO] [stdout] a9b0ba5e8df374219f3df0b4d67a6506ff6f46f8dc84184aecf6d01faf3d9da3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 60d826b013f5a4d8dc95d24379d3bf26be970f5873c188f8b20cef69a804eb83
[INFO] running `Command { std: "docker" "start" "-a" "60d826b013f5a4d8dc95d24379d3bf26be970f5873c188f8b20cef69a804eb83", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling fs_extra v1.2.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking c-types v2.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]    Compiling c-ares-sys v5.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking c-ares v7.3.0
[INFO] [stderr]     Checking c-ares-resolver v7.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 14s
[INFO] running `Command { std: "docker" "inspect" "60d826b013f5a4d8dc95d24379d3bf26be970f5873c188f8b20cef69a804eb83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d826b013f5a4d8dc95d24379d3bf26be970f5873c188f8b20cef69a804eb83", kill_on_drop: false }`
[INFO] [stdout] 60d826b013f5a4d8dc95d24379d3bf26be970f5873c188f8b20cef69a804eb83