[INFO] fetching crate coap-handler 0.1.2...
[INFO] checking coap-handler-0.1.2 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate coap-handler 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate coap-handler 0.1.2 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coap-handler 0.1.2
[INFO] finished tweaking crates.io crate coap-handler 0.1.2
[INFO] tweaked toml for crates.io crate coap-handler 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b20a0d3a051b35c35fe427057228c5f1e3c6684133361d9bb1827feb1b9e3367
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b20a0d3a051b35c35fe427057228c5f1e3c6684133361d9bb1827feb1b9e3367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b20a0d3a051b35c35fe427057228c5f1e3c6684133361d9bb1827feb1b9e3367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20a0d3a051b35c35fe427057228c5f1e3c6684133361d9bb1827feb1b9e3367", kill_on_drop: false }`
[INFO] [stdout] b20a0d3a051b35c35fe427057228c5f1e3c6684133361d9bb1827feb1b9e3367
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 85d6f8088b16a1a9e72231b917f2da18de1a8a89fe5c611045b128d801556d5c
[INFO] running `Command { std: "docker" "start" "-a" "85d6f8088b16a1a9e72231b917f2da18de1a8a89fe5c611045b128d801556d5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking coap-numbers v0.1.2
[INFO] [stderr]     Checking coap-message v0.2.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking windowed-infinity v0.1.1
[INFO] [stderr]     Checking coap-handler v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `helpers::block2_write_with_cf`
[INFO] [stdout]   --> src/implementations.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]   --> src/implementations.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::Block2RequestData`
[INFO] [stdout]   --> src/implementations.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::MaskingUriUpToPath`
[INFO] [stdout]   --> src/implementations.rs:13:59
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated tuple struct `helpers::MaskingUriUpToPath`
[INFO] [stdout]   --> src/implementations.rs:13:59
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::Block2RequestData`
[INFO] [stdout]    --> src/implementations.rs:228:40
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub struct SimpleRenderableData(Result<Block2RequestData, Code>);
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]   --> src/implementations.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 |         response.set_code(codeconvert(code::NOT_FOUND));
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated tuple struct `helpers::MaskingUriUpToPath`
[INFO] [stdout]    --> src/implementations.rs:121:26
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let masked = MaskingUriUpToPath(request);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:214:27
[INFO] [stdout]     |
[INFO] [stdout] 214 |         response.set_code(codeconvert(request));
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::Block2RequestData`
[INFO] [stdout]    --> src/implementations.rs:272:37
[INFO] [stdout]     |
[INFO] [stdout] 272 |                         Ok(None) => Block2RequestData::from_option(&o)
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:303:35
[INFO] [stdout]     |
[INFO] [stdout] 303 |                 response.set_code(codeconvert(c));
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:310:27
[INFO] [stdout]     |
[INFO] [stdout] 310 |         response.set_code(codeconvert(code::CONTENT));
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::block2_write_with_cf`
[INFO] [stdout]    --> src/implementations.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |         block2_write_with_cf(block2data, response, |w| self.0.render(w), cf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:479:35
[INFO] [stdout]     |
[INFO] [stdout] 479 |                 response.set_code(codeconvert(r));
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:486:43
[INFO] [stdout]     |
[INFO] [stdout] 486 |                         response.set_code(codeconvert(e));
[INFO] [stdout]     |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:490:43
[INFO] [stdout]     |
[INFO] [stdout] 490 |                         response.set_code(codeconvert(code::CONTENT));
[INFO] [stdout]     |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:518:51
[INFO] [stdout]     |
[INFO] [stdout] 518 | ...                   response.set_code(codeconvert(code::INTERNAL_SERVER_ERROR));
[INFO] [stdout]     |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:567:27
[INFO] [stdout]     |
[INFO] [stdout] 567 |         response.set_code(codeconvert(code::NOT_FOUND));
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::block2_write_with_cf`
[INFO] [stdout]   --> src/implementations.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]   --> src/implementations.rs:13:27
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::Block2RequestData`
[INFO] [stdout]   --> src/implementations.rs:13:40
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::MaskingUriUpToPath`
[INFO] [stdout]   --> src/implementations.rs:13:59
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated tuple struct `helpers::MaskingUriUpToPath`
[INFO] [stdout]   --> src/implementations.rs:13:59
[INFO] [stdout]    |
[INFO] [stdout] 13 |     block2_write_with_cf, codeconvert, Block2RequestData, MaskingUriUpToPath,
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::Block2RequestData`
[INFO] [stdout]    --> src/implementations.rs:228:40
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub struct SimpleRenderableData(Result<Block2RequestData, Code>);
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]   --> src/implementations.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 |         response.set_code(codeconvert(code::NOT_FOUND));
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated tuple struct `helpers::MaskingUriUpToPath`
[INFO] [stdout]    --> src/implementations.rs:121:26
[INFO] [stdout]     |
[INFO] [stdout] 121 |             let masked = MaskingUriUpToPath(request);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:214:27
[INFO] [stdout]     |
[INFO] [stdout] 214 |         response.set_code(codeconvert(request));
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `helpers::Block2RequestData`
[INFO] [stdout]    --> src/implementations.rs:272:37
[INFO] [stdout]     |
[INFO] [stdout] 272 |                         Ok(None) => Block2RequestData::from_option(&o)
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:303:35
[INFO] [stdout]     |
[INFO] [stdout] 303 |                 response.set_code(codeconvert(c));
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:310:27
[INFO] [stdout]     |
[INFO] [stdout] 310 |         response.set_code(codeconvert(code::CONTENT));
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::block2_write_with_cf`
[INFO] [stdout]    --> src/implementations.rs:311:9
[INFO] [stdout]     |
[INFO] [stdout] 311 |         block2_write_with_cf(block2data, response, |w| self.0.render(w), cf);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:479:35
[INFO] [stdout]     |
[INFO] [stdout] 479 |                 response.set_code(codeconvert(r));
[INFO] [stdout]     |                                   ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:486:43
[INFO] [stdout]     |
[INFO] [stdout] 486 |                         response.set_code(codeconvert(e));
[INFO] [stdout]     |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:490:43
[INFO] [stdout]     |
[INFO] [stdout] 490 |                         response.set_code(codeconvert(code::CONTENT));
[INFO] [stdout]     |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:518:51
[INFO] [stdout]     |
[INFO] [stdout] 518 | ...                   response.set_code(codeconvert(code::INTERNAL_SERVER_ERROR));
[INFO] [stdout]     |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `helpers::codeconvert`
[INFO] [stdout]    --> src/implementations.rs:567:27
[INFO] [stdout]     |
[INFO] [stdout] 567 |         response.set_code(codeconvert(code::NOT_FOUND));
[INFO] [stdout]     |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `helpers::Block2RequestData::from_option`
[INFO] [stdout]    --> src/implementations.rs:272:56
[INFO] [stdout]     |
[INFO] [stdout] 272 |                         Ok(None) => Block2RequestData::from_option(&o)
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `helpers::Block2RequestData::from_option`
[INFO] [stdout]    --> src/implementations.rs:272:56
[INFO] [stdout]     |
[INFO] [stdout] 272 |                         Ok(None) => Block2RequestData::from_option(&o)
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/helpers.rs:217:8
[INFO] [stdout]     |
[INFO] [stdout] 217 |     fn new(data: &'a mut [u8], cursor: isize) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/helpers.rs:217:8
[INFO] [stdout]     |
[INFO] [stdout] 217 |     fn new(data: &'a mut [u8], cursor: isize) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bytes_in_buffer`
[INFO] [stdout]    --> src/helpers.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn bytes_in_buffer(&self) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cursor`
[INFO] [stdout]    --> src/helpers.rs:230:8
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn cursor(&self) -> isize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `etag`
[INFO] [stdout]    --> src/helpers.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn etag(&self) -> u64 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `did_overflow`
[INFO] [stdout]    --> src/helpers.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn did_overflow(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `bytes_in_buffer`
[INFO] [stdout]    --> src/helpers.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn bytes_in_buffer(&self) -> Option<usize> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cursor`
[INFO] [stdout]    --> src/helpers.rs:230:8
[INFO] [stdout]     |
[INFO] [stdout] 230 |     fn cursor(&self) -> isize {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `etag`
[INFO] [stdout]    --> src/helpers.rs:234:8
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fn etag(&self) -> u64 {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `did_overflow`
[INFO] [stdout]    --> src/helpers.rs:238:8
[INFO] [stdout]     |
[INFO] [stdout] 238 |     fn did_overflow(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.24s
[INFO] running `Command { std: "docker" "inspect" "85d6f8088b16a1a9e72231b917f2da18de1a8a89fe5c611045b128d801556d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d6f8088b16a1a9e72231b917f2da18de1a8a89fe5c611045b128d801556d5c", kill_on_drop: false }`
[INFO] [stdout] 85d6f8088b16a1a9e72231b917f2da18de1a8a89fe5c611045b128d801556d5c