[INFO] updating cached repository https://github.com/dobrakmato/tsdb
[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] [stderr] From https://github.com/dobrakmato/tsdb
[INFO] [stderr]  * [new branch]      dependabot/cargo/serde_json-1.0.44 -> dependabot/cargo/serde_json-1.0.44
[INFO] [stderr]    29a0466..4a65514  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4a65514b66df6991e1ee5f90ca026c40d40ba28d
[INFO] checking dobrakmato/tsdb against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdobrakmato%2Ftsdb" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dobrakmato/tsdb on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dobrakmato/tsdb
[INFO] finished tweaking git repo https://github.com/dobrakmato/tsdb
[INFO] tweaked toml for git repo https://github.com/dobrakmato/tsdb written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/dobrakmato/tsdb already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 17db107c97b1afa6536612497ded31d217a290da013cf7d0e54b40a9717a02bb
[INFO] running `"docker" "start" "-a" "17db107c97b1afa6536612497ded31d217a290da013cf7d0e54b40a9717a02bb"`
[INFO] [stderr]    Compiling syn v1.0.9
[INFO] [stderr]     Checking byteio v0.2.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking nano-leb128 v0.1.0
[INFO] [stderr]     Checking simple_logger v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking tsdb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:296:17
[INFO] [stderr]     |
[INFO] [stderr] 296 |             let mut a = c.get_mut(&0);
[INFO] [stderr]     |                 ----^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/engine.rs:864:17
[INFO] [stderr]     |
[INFO] [stderr] 864 |             let mut idx = TimestampIndex::load(
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine.rs:1254:13
[INFO] [stderr]      |
[INFO] [stderr] 1254 |             s.create_series("default");
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine.rs:1286:13
[INFO] [stderr]      |
[INFO] [stderr] 1286 |             s.create_series("default");
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]     --> src/engine.rs:1288:17
[INFO] [stderr]      |
[INFO] [stderr] 1288 |                 s.insert_point("default", i as f32);
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.68s
[INFO] running `"docker" "inspect" "17db107c97b1afa6536612497ded31d217a290da013cf7d0e54b40a9717a02bb"`
[INFO] running `"docker" "rm" "-f" "17db107c97b1afa6536612497ded31d217a290da013cf7d0e54b40a9717a02bb"`
[INFO] [stdout] 17db107c97b1afa6536612497ded31d217a290da013cf7d0e54b40a9717a02bb