[INFO] crate buf 0.2.2 is already in cache
[INFO] checking buf-0.2.2 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate buf 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate buf 0.2.2 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2805ba0008cb919b2be15ade36325ca21bcaf9e2e286db53af4114bbf302be8e
[INFO] running `"docker" "start" "-a" "2805ba0008cb919b2be15ade36325ca21bcaf9e2e286db53af4114bbf302be8e"`
[INFO] [stderr]    Compiling ptr v0.2.1
[INFO] [stderr]    Compiling hash-table v0.2.3
[INFO] [stderr]    Compiling containers v0.9.6
[INFO] [stderr]     Checking rel v0.2.0
[INFO] [stderr]     Checking heap v0.1.0
[INFO] [stderr]    Compiling i-o v0.4.4
[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 2.04s
[INFO] running `"docker" "inspect" "2805ba0008cb919b2be15ade36325ca21bcaf9e2e286db53af4114bbf302be8e"`
[INFO] running `"docker" "rm" "-f" "2805ba0008cb919b2be15ade36325ca21bcaf9e2e286db53af4114bbf302be8e"`
[INFO] [stdout] 2805ba0008cb919b2be15ade36325ca21bcaf9e2e286db53af4114bbf302be8e
