[INFO] crate preserves 0.3.1 is already in cache
[INFO] checking preserves-0.3.1 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate preserves 0.3.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate preserves 0.3.1 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate preserves 0.3.1
[INFO] finished tweaking crates.io crate preserves 0.3.1
[INFO] tweaked toml for crates.io crate preserves 0.3.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 5f0bf6fa9404207cb598fa43429051c45c847227865f0dbdce8922dd9fefb6e7
[INFO] running `"docker" "start" "-a" "5f0bf6fa9404207cb598fa43429051c45c847227865f0dbdce8922dd9fefb6e7"`
[INFO] [stderr]    Compiling derivative v2.1.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]     Checking serde_bytes v0.11.3
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling num_enum_derive v0.4.3
[INFO] [stderr]     Checking num_enum v0.4.3
[INFO] [stderr]     Checking preserves v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.06s
[INFO] running `"docker" "inspect" "5f0bf6fa9404207cb598fa43429051c45c847227865f0dbdce8922dd9fefb6e7"`
[INFO] running `"docker" "rm" "-f" "5f0bf6fa9404207cb598fa43429051c45c847227865f0dbdce8922dd9fefb6e7"`
[INFO] [stdout] 5f0bf6fa9404207cb598fa43429051c45c847227865f0dbdce8922dd9fefb6e7