[INFO] fetching crate grin_chain 2.0.0...
[INFO] checking grin_chain-2.0.0 against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[INFO] extracting crate grin_chain 2.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate grin_chain 2.0.0 on toolchain 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate grin_chain 2.0.0
[INFO] finished tweaking crates.io crate grin_chain 2.0.0
[INFO] tweaked toml for crates.io crate grin_chain 2.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "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] 52305fc15fb4bf1bc92e661561a818c3b99a8848c859557456a493316f024293
[INFO] running `"docker" "start" "-a" "52305fc15fb4bf1bc92e661561a818c3b99a8848c859557456a493316f024293"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking grin_core v2.0.0
[INFO] [stderr]     Checking grin_store v2.0.0
[INFO] [stderr]     Checking grin_chain v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/chain.rs:648:47
[INFO] [stderr]     |
[INFO] [stderr] 648 |     pub fn kernel_data_write(&self, reader: &mut Read) -> Result<(), Error> {
[INFO] [stderr]     |                                                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chain.rs:1393:53
[INFO] [stderr]      |
[INFO] [stderr] 1393 |                 let (utxo_sum, kernel_sum) = (sums, genesis as &Committed).verify_kernel_sums(
[INFO] [stderr]      |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn Committed`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/chain.rs:648:47
[INFO] [stderr]     |
[INFO] [stderr] 648 |     pub fn kernel_data_write(&self, reader: &mut Read) -> Result<(), Error> {
[INFO] [stderr]     |                                                  ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/chain.rs:1393:53
[INFO] [stderr]      |
[INFO] [stderr] 1393 |                 let (utxo_sum, kernel_sum) = (sums, genesis as &Committed).verify_kernel_sums(
[INFO] [stderr]      |                                                                 ^^^^^^^^^ help: use `dyn`: `dyn Committed`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.90s
[INFO] running `"docker" "inspect" "52305fc15fb4bf1bc92e661561a818c3b99a8848c859557456a493316f024293"`
[INFO] running `"docker" "rm" "-f" "52305fc15fb4bf1bc92e661561a818c3b99a8848c859557456a493316f024293"`
[INFO] [stdout] 52305fc15fb4bf1bc92e661561a818c3b99a8848c859557456a493316f024293