[INFO] updating cached repository https://github.com/njunxuan/tp-kvs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ffb44d70f3b0ae34e943d31f0bca534e65731f1
[INFO] checking njunxuan/tp-kvs against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjunxuan%2Ftp-kvs" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/njunxuan/tp-kvs on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/njunxuan/tp-kvs
[INFO] finished tweaking git repo https://github.com/njunxuan/tp-kvs
[INFO] tweaked toml for git repo https://github.com/njunxuan/tp-kvs written to /workspace/builds/worker-0/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-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" "+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] f27cb9fd09483cf906004a74e9a5b02490338283e81a9b898e04429f9deb6646
[INFO] running `"docker" "start" "-a" "f27cb9fd09483cf906004a74e9a5b02490338283e81a9b898e04429f9deb6646"`
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking memchr v2.3.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking float-cmp v0.5.3
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking serde_bytes v0.11.3
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking bstr v0.2.10
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking sled v0.29.2
[INFO] [stderr]     Checking slog-term v2.4.2
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking predicates v1.0.2
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:62:44
[INFO] [stderr]    |
[INFO] [stderr] 62 |             KvError::Serde(ref err) => err.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:63:41
[INFO] [stderr]    |
[INFO] [stderr] 63 |             KvError::Io(ref err) => err.description(),
[INFO] [stderr]    |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:64:48
[INFO] [stderr]    |
[INFO] [stderr] 64 |             KvError::SledError(ref err) => err.description(),
[INFO] [stderr]    |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:62:44
[INFO] [stderr]    |
[INFO] [stderr] 62 |             KvError::Serde(ref err) => err.description(),
[INFO] [stderr]    |                                            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:63:41
[INFO] [stderr]    |
[INFO] [stderr] 63 |             KvError::Io(ref err) => err.description(),
[INFO] [stderr]    |                                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:64:48
[INFO] [stderr]    |
[INFO] [stderr] 64 |             KvError::SledError(ref err) => err.description(),
[INFO] [stderr]    |                                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/bin/kvs-server.rs:162:49
[INFO] [stderr]     |
[INFO] [stderr] 162 |             let err_res = KvResponse::Error(err.description().to_string());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/bin/kvs-server.rs:178:49
[INFO] [stderr]     |
[INFO] [stderr] 178 |             let err_res = KvResponse::Error(err.description().to_string());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/bin/kvs-server.rs:194:49
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let err_res = KvResponse::Error(err.description().to_string());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/bin/kvs-server.rs:162:49
[INFO] [stderr]     |
[INFO] [stderr] 162 |             let err_res = KvResponse::Error(err.description().to_string());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/bin/kvs-server.rs:178:49
[INFO] [stderr]     |
[INFO] [stderr] 178 |             let err_res = KvResponse::Error(err.description().to_string());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/bin/kvs-server.rs:194:49
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let err_res = KvResponse::Error(err.description().to_string());
[INFO] [stderr]     |                                                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.62s
[INFO] running `"docker" "inspect" "f27cb9fd09483cf906004a74e9a5b02490338283e81a9b898e04429f9deb6646"`
[INFO] running `"docker" "rm" "-f" "f27cb9fd09483cf906004a74e9a5b02490338283e81a9b898e04429f9deb6646"`
[INFO] [stdout] f27cb9fd09483cf906004a74e9a5b02490338283e81a9b898e04429f9deb6646