[INFO] fetching crate tokio-buf 0.2.0-alpha.1...
[INFO] checking tokio-buf-0.2.0-alpha.1 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate tokio-buf 0.2.0-alpha.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tokio-buf 0.2.0-alpha.1 on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio-buf 0.2.0-alpha.1
[INFO] finished tweaking crates.io crate tokio-buf 0.2.0-alpha.1
[INFO] tweaked toml for crates.io crate tokio-buf 0.2.0-alpha.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", 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] 4cc486d1fae5e224d55da4732e64f3776db2d0f8e2b2e398ce24ff0c4647cf63
[INFO] running `Command { std: "docker" "start" "-a" "4cc486d1fae5e224d55da4732e64f3776db2d0f8e2b2e398ce24ff0c4647cf63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cc486d1fae5e224d55da4732e64f3776db2d0f8e2b2e398ce24ff0c4647cf63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cc486d1fae5e224d55da4732e64f3776db2d0f8e2b2e398ce24ff0c4647cf63", kill_on_drop: false }`
[INFO] [stdout] 4cc486d1fae5e224d55da4732e64f3776db2d0f8e2b2e398ce24ff0c4647cf63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 110692998fafff638974da0fae23f677b5f4efd9d4cadb8d2b4cbdc070134107
[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" "110692998fafff638974da0fae23f677b5f4efd9d4cadb8d2b4cbdc070134107", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-mock-task v0.1.1
[INFO] [stderr]     Checking tokio-buf v0.2.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `Command { std: "docker" "inspect" "110692998fafff638974da0fae23f677b5f4efd9d4cadb8d2b4cbdc070134107", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110692998fafff638974da0fae23f677b5f4efd9d4cadb8d2b4cbdc070134107", kill_on_drop: false }`
[INFO] [stdout] 110692998fafff638974da0fae23f677b5f4efd9d4cadb8d2b4cbdc070134107