[INFO] fetching crate stratum-types 0.9.18...
[INFO] checking stratum-types-0.9.18 against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] extracting crate stratum-types 0.9.18 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate stratum-types 0.9.18 on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate stratum-types 0.9.18
[INFO] finished tweaking crates.io crate stratum-types 0.9.18
[INFO] tweaked toml for crates.io crate stratum-types 0.9.18 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+d939f708d960161d23b964309ba68ff207fc0ead" "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] c7337a2df847bfdc38fc2272d94ea20740a83a680c2a7be5b414ba276b710b71
[INFO] running `"docker" "start" "-a" "c7337a2df847bfdc38fc2272d94ea20740a83a680c2a7be5b414ba276b710b71"`
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking serde v1.0.105
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling serde_tuple v0.4.0
[INFO] [stderr]     Checking stratum-types v0.9.18 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `SeqAccess`
[INFO] [stderr]   --> src/lib.rs:11:34
[INFO] [stderr]    |
[INFO] [stderr] 11 | use serde::de::{self, MapAccess, SeqAccess, Visitor};
[INFO] [stderr]    |                                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SeqAccess`
[INFO] [stderr]   --> src/lib.rs:11:34
[INFO] [stderr]    |
[INFO] [stderr] 11 | use serde::de::{self, MapAccess, SeqAccess, Visitor};
[INFO] [stderr]    |                                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.76s
[INFO] running `"docker" "inspect" "c7337a2df847bfdc38fc2272d94ea20740a83a680c2a7be5b414ba276b710b71"`
[INFO] running `"docker" "rm" "-f" "c7337a2df847bfdc38fc2272d94ea20740a83a680c2a7be5b414ba276b710b71"`
[INFO] [stdout] c7337a2df847bfdc38fc2272d94ea20740a83a680c2a7be5b414ba276b710b71