[INFO] crate buf 0.2.2 is already in cache
[INFO] checking buf-0.2.2 against master#e22b61bff0bdd08be7665607cb7be3748c8a35d2 for pr-74627
[INFO] extracting crate buf 0.2.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate buf 0.2.2 on toolchain e22b61bff0bdd08be7665607cb7be3748c8a35d2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buf 0.2.2
[INFO] finished tweaking crates.io crate buf 0.2.2
[INFO] tweaked toml for crates.io crate buf 0.2.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02321b6a41fece04f7590dab7352b287311a116dddc8385d0ceeed5bafed5d32
[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" "02321b6a41fece04f7590dab7352b287311a116dddc8385d0ceeed5bafed5d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02321b6a41fece04f7590dab7352b287311a116dddc8385d0ceeed5bafed5d32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02321b6a41fece04f7590dab7352b287311a116dddc8385d0ceeed5bafed5d32", kill_on_drop: false }`
[INFO] [stdout] 02321b6a41fece04f7590dab7352b287311a116dddc8385d0ceeed5bafed5d32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+e22b61bff0bdd08be7665607cb7be3748c8a35d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1341bf56c68721025253cf9f1674d463ee742187aea671f5dea51cfec4c7211f
[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" "1341bf56c68721025253cf9f1674d463ee742187aea671f5dea51cfec4c7211f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ptr v0.2.2
[INFO] [stderr]    Compiling hash-table v0.2.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling containers v0.9.8
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling i-o v0.4.7
[INFO] [stderr]     Checking rel v0.2.0
[INFO] [stderr]     Checking heap v0.1.0
[INFO] [stderr]     Checking fallible v0.1.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking loca v0.7.2
[INFO] [stderr]     Checking default_allocator v0.3.0
[INFO] [stderr]     Checking buf v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "1341bf56c68721025253cf9f1674d463ee742187aea671f5dea51cfec4c7211f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1341bf56c68721025253cf9f1674d463ee742187aea671f5dea51cfec4c7211f", kill_on_drop: false }`
[INFO] [stdout] 1341bf56c68721025253cf9f1674d463ee742187aea671f5dea51cfec4c7211f