[INFO] fetching crate buf 0.2.2...
[INFO] checking buf-0.2.2 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate buf 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate buf 0.2.2 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rel v0.2.0
[INFO] [stderr]   Downloaded default_allocator v0.3.0
[INFO] [stderr]   Downloaded fallible v0.1.3
[INFO] [stderr]   Downloaded ptr v0.2.2
[INFO] [stderr]   Downloaded containers v0.9.9
[INFO] [stderr]   Downloaded hash-table v0.2.4
[INFO] [stderr]   Downloaded i-o v0.4.7
[INFO] [stderr]   Downloaded heap v0.1.0
[INFO] [stderr]   Downloaded loca v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d59c80f340e419378dbc1625477f9a3a90e190564f6674109ce8a023c64a1e7
[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" "4d59c80f340e419378dbc1625477f9a3a90e190564f6674109ce8a023c64a1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d59c80f340e419378dbc1625477f9a3a90e190564f6674109ce8a023c64a1e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d59c80f340e419378dbc1625477f9a3a90e190564f6674109ce8a023c64a1e7", kill_on_drop: false }`
[INFO] [stdout] 4d59c80f340e419378dbc1625477f9a3a90e190564f6674109ce8a023c64a1e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "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] 12baf48c2315ccb28664893b0d1f7c7030f5e0e6b042b25e4fbfa33b873cfd46
[INFO] running `Command { std: "docker" "start" "-a" "12baf48c2315ccb28664893b0d1f7c7030f5e0e6b042b25e4fbfa33b873cfd46", kill_on_drop: false }`
[INFO] [stderr]    Compiling ptr v0.2.2
[INFO] [stderr]    Compiling hash-table v0.2.4
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling containers v0.9.9
[INFO] [stderr]     Checking rel v0.2.0
[INFO] [stderr]    Compiling i-o v0.4.7
[INFO] [stderr]     Checking heap v0.1.0
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking fallible v0.1.3
[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 2.25s
[INFO] running `Command { std: "docker" "inspect" "12baf48c2315ccb28664893b0d1f7c7030f5e0e6b042b25e4fbfa33b873cfd46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12baf48c2315ccb28664893b0d1f7c7030f5e0e6b042b25e4fbfa33b873cfd46", kill_on_drop: false }`
[INFO] [stdout] 12baf48c2315ccb28664893b0d1f7c7030f5e0e6b042b25e4fbfa33b873cfd46