[INFO] crate c3p0_json 0.8.2 is already in cache
[INFO] checking c3p0_json-0.8.2 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate c3p0_json 0.8.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate c3p0_json 0.8.2 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate c3p0_json 0.8.2
[INFO] finished tweaking crates.io crate c3p0_json 0.8.2
[INFO] tweaked toml for crates.io crate c3p0_json 0.8.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] 4e09d29ef29d205c9bfec9f22cef051b36c1c511980016a81e28c67f7d44eba0
[INFO] running `"docker" "start" "-a" "4e09d29ef29d205c9bfec9f22cef051b36c1c511980016a81e28c67f7d44eba0"`
[INFO] [stderr]     Checking maybe-single v0.4.0
[INFO] [stderr]    Compiling debug_stub_derive v0.3.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling err-derive v0.1.6
[INFO] [stderr]     Checking tc_core v0.3.1
[INFO] [stderr]     Checking tc_dynamodb_local v0.2.1
[INFO] [stderr]     Checking tc_elasticmq v0.2.1
[INFO] [stderr]     Checking tc_cli_client v0.2.1
[INFO] [stderr]     Checking tc_redis v0.2.1
[INFO] [stderr]     Checking tc_parity_parity v0.4.0
[INFO] [stderr]     Checking tc_coblox_bitcoincore v0.5.1
[INFO] [stderr]     Checking tc_generic v0.2.1
[INFO] [stderr]     Checking tc_postgres v0.2.0
[INFO] [stderr]     Checking tc_trufflesuite_ganachecli v0.4.1
[INFO] [stderr]     Checking testcontainers v0.6.0
[INFO] [stderr]     Checking c3p0_common v0.8.2
[INFO] [stderr]     Checking c3p0_json v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/json/model.rs:74:57
[INFO] [stderr]    |
[INFO] [stderr] 74 |     fn model_should_be_serializable() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[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/json/model.rs:94:61
[INFO] [stderr]    |
[INFO] [stderr] 94 |     fn new_model_should_be_serializable() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.75s
[INFO] running `"docker" "inspect" "4e09d29ef29d205c9bfec9f22cef051b36c1c511980016a81e28c67f7d44eba0"`
[INFO] running `"docker" "rm" "-f" "4e09d29ef29d205c9bfec9f22cef051b36c1c511980016a81e28c67f7d44eba0"`
[INFO] [stdout] 4e09d29ef29d205c9bfec9f22cef051b36c1c511980016a81e28c67f7d44eba0