[INFO] fetching crate hi-tension 0.1.0...
[INFO] testing hi-tension-0.1.0 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate hi-tension 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate hi-tension 0.1.0
[INFO] finished tweaking crates.io crate hi-tension 0.1.0
[INFO] tweaked toml for crates.io crate hi-tension 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hi-tension 0.1.0 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f3b1feec6b95f8ab9f8f78aa98bd021e84063573c9510c16465e5c5196efebf
[INFO] running `Command { std: "docker" "start" "-a" "5f3b1feec6b95f8ab9f8f78aa98bd021e84063573c9510c16465e5c5196efebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f3b1feec6b95f8ab9f8f78aa98bd021e84063573c9510c16465e5c5196efebf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3b1feec6b95f8ab9f8f78aa98bd021e84063573c9510c16465e5c5196efebf", kill_on_drop: false }`
[INFO] [stdout] 5f3b1feec6b95f8ab9f8f78aa98bd021e84063573c9510c16465e5c5196efebf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a5cf7b4812bf4c38284318245f0e8680618ca36dd564f2322fffd64aa4d7f52
[INFO] running `Command { std: "docker" "start" "-a" "0a5cf7b4812bf4c38284318245f0e8680618ca36dd564f2322fffd64aa4d7f52", kill_on_drop: false }`
[INFO] [stderr]    Compiling hi-tension v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             drop(buf_view);
[INFO] [stdout]     |             ^^^^^--------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut [u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 110 -             drop(buf_view);
[INFO] [stdout] 110 +             let _ = buf_view;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "0a5cf7b4812bf4c38284318245f0e8680618ca36dd564f2322fffd64aa4d7f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5cf7b4812bf4c38284318245f0e8680618ca36dd564f2322fffd64aa4d7f52", kill_on_drop: false }`
[INFO] [stdout] 0a5cf7b4812bf4c38284318245f0e8680618ca36dd564f2322fffd64aa4d7f52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d37eb6c32ba0822945b968a4b078945c8521188ba0b723760bc5dc579b7a7aa6
[INFO] running `Command { std: "docker" "start" "-a" "d37eb6c32ba0822945b968a4b078945c8521188ba0b723760bc5dc579b7a7aa6", kill_on_drop: false }`
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             drop(buf_view);
[INFO] [stdout]     |             ^^^^^--------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut [u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 110 -             drop(buf_view);
[INFO] [stdout] 110 +             let _ = buf_view;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hi-tension v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |             drop(buf_view);
[INFO] [stdout]     |             ^^^^^--------^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  argument has type `&mut [u8]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 110 -             drop(buf_view);
[INFO] [stdout] 110 +             let _ = buf_view;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "d37eb6c32ba0822945b968a4b078945c8521188ba0b723760bc5dc579b7a7aa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37eb6c32ba0822945b968a4b078945c8521188ba0b723760bc5dc579b7a7aa6", kill_on_drop: false }`
[INFO] [stdout] d37eb6c32ba0822945b968a4b078945c8521188ba0b723760bc5dc579b7a7aa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e84866784a56addcc2c413c91fa461f91363c12add0dbba185e93c4674d935db
[INFO] running `Command { std: "docker" "start" "-a" "e84866784a56addcc2c413c91fa461f91363c12add0dbba185e93c4674d935db", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             drop(buf_view);
[INFO] [stderr]     |             ^^^^^--------^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  argument has type `&mut [u8]`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 110 -             drop(buf_view);
[INFO] [stderr] 110 +             let _ = buf_view;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `hi-tension` (lib) generated 1 warning
[INFO] [stderr] warning: `hi-tension` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hi_tension-4a06144b7c7902e6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hi_tension
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - hiwrite (line 143) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - hiread (line 97) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - hidelimiter (line 186) - compile ... FAILED
[INFO] [stdout] test src/lib.rs - (line 8) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - hiwrite (line 143) stdout ----
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]    --> src/lib.rs:145:51
[INFO] [stdout]     |
[INFO] [stdout] 145 | let stream = TcpStream::connect("127.0.0.1:34567")
[INFO] [stdout]     |                                                   ^ help: add `;` here
[INFO] [stdout] 146 |
[INFO] [stdout] 147 | let data = vec![0.0; 1_000_000]; // 8 MB
[INFO] [stdout]     | --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hiwrite` in this scope
[INFO] [stdout]    --> src/lib.rs:151:1
[INFO] [stdout]     |
[INFO] [stdout] 151 | hiwrite(&mut stream, &data)?;
[INFO] [stdout]     | ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 143 + use hi_tension::hiwrite;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hidelimiter` in this scope
[INFO] [stdout]    --> src/lib.rs:152:1
[INFO] [stdout]     |
[INFO] [stdout] 152 | hidelimiter(&mut stream);
[INFO] [stdout]     | ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 143 + use hi_tension::hidelimiter;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hiwrite` in this scope
[INFO] [stdout]    --> src/lib.rs:155:1
[INFO] [stdout]     |
[INFO] [stdout] 155 | hiwrite(&mut stream, &data[..500_000])?;
[INFO] [stdout]     | ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 143 + use hi_tension::hiwrite;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hiwrite` in this scope
[INFO] [stdout]    --> src/lib.rs:156:1
[INFO] [stdout]     |
[INFO] [stdout] 156 | hiwrite(&mut stream, &data[500_000..])?;
[INFO] [stdout]     | ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 143 + use hi_tension::hiwrite;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hidelimiter` in this scope
[INFO] [stdout]    --> src/lib.rs:157:1
[INFO] [stdout]     |
[INFO] [stdout] 157 | hidelimiter(&mut stream);
[INFO] [stdout]     | ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 143 + use hi_tension::hidelimiter;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - hiread (line 97) stdout ----
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]    --> src/lib.rs:99:51
[INFO] [stdout]     |
[INFO] [stdout]  99 | let stream = TcpStream::connect("127.0.0.1:34567")
[INFO] [stdout]     |                                                   ^ help: add `;` here
[INFO] [stdout] 100 |
[INFO] [stdout] 101 | let data = hiread(&mut stream);
[INFO] [stdout]     | --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hiread` in this scope
[INFO] [stdout]    --> src/lib.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 | let data = hiread(&mut stream);
[INFO] [stdout]     |            ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout]  97 + use hi_tension::hiread;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - hidelimiter (line 186) stdout ----
[INFO] [stdout] error: expected `;`, found keyword `let`
[INFO] [stdout]    --> src/lib.rs:188:51
[INFO] [stdout]     |
[INFO] [stdout] 188 | let stream = TcpStream::connect("127.0.0.1:34567")
[INFO] [stdout]     |                                                   ^ help: add `;` here
[INFO] [stdout] 189 |
[INFO] [stdout] 190 | let data = vec![0.0; 1_000_000]; // 8 MB
[INFO] [stdout]     | --- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hiwrite` in this scope
[INFO] [stdout]    --> src/lib.rs:192:1
[INFO] [stdout]     |
[INFO] [stdout] 192 | hiwrite(&mut stream, &data)?;
[INFO] [stdout]     | ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 186 + use hi_tension::hiwrite;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `hidelimiter` in this scope
[INFO] [stdout]    --> src/lib.rs:193:1
[INFO] [stdout]     |
[INFO] [stdout] 193 | hidelimiter(&mut stream);
[INFO] [stdout]     | ^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]     |
[INFO] [stdout] 186 + use hi_tension::hidelimiter;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 8) stdout ----
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/lib.rs:26:9
[INFO] [stdout]     |
[INFO] [stdout]  26 | hiwrite(&mut stream, &data)?;
[INFO] [stdout]     | ------- ^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hiwrite`
[INFO] [stdout]    --> src/lib.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn hiwrite<W: Write>(stream: &mut W, data: &[f64]) -> Result<()> {
[INFO] [stdout]     |                   ^^^^^ required by this bound in `hiwrite`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout]  9 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() {
[INFO] [stdout]    |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 26 | hiwrite(&mut stream, &data)?;
[INFO] [stdout]    |                            ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout]  9 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 10 | use hi_tension::{hiread, hiwrite, hidelimiter};
[INFO] [stdout] ...
[INFO] [stdout] 37 | let vec = hiread(&mut stream)?;
[INFO] [stdout] 38 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Read` is not satisfied
[INFO] [stdout]    --> src/lib.rs:27:13
[INFO] [stdout]     |
[INFO] [stdout]  27 | hidelimiter(&mut stream);
[INFO] [stdout]     | ----------- ^^^^^^^^^^^ the trait `std::io::Read` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hidelimiter`
[INFO] [stdout]    --> src/lib.rs:195:23
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub fn hidelimiter<S: Read + Write>(stream: &mut S) -> Result<()> {
[INFO] [stdout]     |                       ^^^^ required by this bound in `hidelimiter`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/lib.rs:27:13
[INFO] [stdout]     |
[INFO] [stdout]  27 | hidelimiter(&mut stream);
[INFO] [stdout]     | ----------- ^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hidelimiter`
[INFO] [stdout]    --> src/lib.rs:195:30
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub fn hidelimiter<S: Read + Write>(stream: &mut S) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^ required by this bound in `hidelimiter`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/lib.rs:30:9
[INFO] [stdout]     |
[INFO] [stdout]  30 | hiwrite(&mut stream, &data[..500_000])?;
[INFO] [stdout]     | ------- ^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hiwrite`
[INFO] [stdout]    --> src/lib.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn hiwrite<W: Write>(stream: &mut W, data: &[f64]) -> Result<()> {
[INFO] [stdout]     |                   ^^^^^ required by this bound in `hiwrite`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:30:39
[INFO] [stdout]    |
[INFO] [stdout]  9 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() {
[INFO] [stdout]    |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 30 | hiwrite(&mut stream, &data[..500_000])?;
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout]  9 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 10 | use hi_tension::{hiread, hiwrite, hidelimiter};
[INFO] [stdout] ...
[INFO] [stdout] 37 | let vec = hiread(&mut stream)?;
[INFO] [stdout] 38 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/lib.rs:31:9
[INFO] [stdout]     |
[INFO] [stdout]  31 | hiwrite(&mut stream, &data[500_000..])?;
[INFO] [stdout]     | ------- ^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hiwrite`
[INFO] [stdout]    --> src/lib.rs:159:19
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn hiwrite<W: Write>(stream: &mut W, data: &[f64]) -> Result<()> {
[INFO] [stdout]     |                   ^^^^^ required by this bound in `hiwrite`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:31:39
[INFO] [stdout]    |
[INFO] [stdout]  9 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() {
[INFO] [stdout]    |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 31 | hiwrite(&mut stream, &data[500_000..])?;
[INFO] [stdout]    |                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout]  9 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 10 | use hi_tension::{hiread, hiwrite, hidelimiter};
[INFO] [stdout] ...
[INFO] [stdout] 37 | let vec = hiread(&mut stream)?;
[INFO] [stdout] 38 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Read` is not satisfied
[INFO] [stdout]    --> src/lib.rs:32:13
[INFO] [stdout]     |
[INFO] [stdout]  32 | hidelimiter(&mut stream);
[INFO] [stdout]     | ----------- ^^^^^^^^^^^ the trait `std::io::Read` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hidelimiter`
[INFO] [stdout]    --> src/lib.rs:195:23
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub fn hidelimiter<S: Read + Write>(stream: &mut S) -> Result<()> {
[INFO] [stdout]     |                       ^^^^ required by this bound in `hidelimiter`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/lib.rs:32:13
[INFO] [stdout]     |
[INFO] [stdout]  32 | hidelimiter(&mut stream);
[INFO] [stdout]     | ----------- ^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     | |
[INFO] [stdout]     | required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hidelimiter`
[INFO] [stdout]    --> src/lib.rs:195:30
[INFO] [stdout]     |
[INFO] [stdout] 195 | pub fn hidelimiter<S: Read + Write>(stream: &mut S) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^ required by this bound in `hidelimiter`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Read` is not satisfied
[INFO] [stdout]    --> src/lib.rs:37:18
[INFO] [stdout]     |
[INFO] [stdout]  37 | let vec = hiread(&mut stream)?;
[INFO] [stdout]     |           ------ ^^^^^^^^^^^ the trait `std::io::Read` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     |           |
[INFO] [stdout]     |           required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hiread`
[INFO] [stdout]    --> src/lib.rs:103:18
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub fn hiread<S: Read + Write>(stream: &mut S) -> Result<Vec<f64>> {
[INFO] [stdout]     |                  ^^^^ required by this bound in `hiread`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `Result<TcpStream, std::io::Error>: std::io::Write` is not satisfied
[INFO] [stdout]    --> src/lib.rs:37:18
[INFO] [stdout]     |
[INFO] [stdout]  37 | let vec = hiread(&mut stream)?;
[INFO] [stdout]     |           ------ ^^^^^^^^^^^ the trait `std::io::Write` is not implemented for `Result<TcpStream, std::io::Error>`
[INFO] [stdout]     |           |
[INFO] [stdout]     |           required by a bound introduced by this call
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `hiread`
[INFO] [stdout]    --> src/lib.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub fn hiread<S: Read + Write>(stream: &mut S) -> Result<Vec<f64>> {
[INFO] [stdout]     |                         ^^^^^ required by this bound in `hiread`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:37:30
[INFO] [stdout]    |
[INFO] [stdout]  9 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() {
[INFO] [stdout]    |                                      --------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 37 | let vec = hiread(&mut stream)?;
[INFO] [stdout]    |                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout]  9 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_8_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 10 | use hi_tension::{hiread, hiwrite, hidelimiter};
[INFO] [stdout] ...
[INFO] [stdout] 37 | let vec = hiread(&mut stream)?;
[INFO] [stdout] 38 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 8)
[INFO] [stdout]     src/lib.rs - hidelimiter (line 186)
[INFO] [stdout]     src/lib.rs - hiread (line 97)
[INFO] [stdout]     src/lib.rs - hiwrite (line 143)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "e84866784a56addcc2c413c91fa461f91363c12add0dbba185e93c4674d935db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e84866784a56addcc2c413c91fa461f91363c12add0dbba185e93c4674d935db", kill_on_drop: false }`
[INFO] [stdout] e84866784a56addcc2c413c91fa461f91363c12add0dbba185e93c4674d935db
