[INFO] fetching crate criware-utf-core 1.1.0...
[INFO] testing criware-utf-core-1.1.0 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate criware-utf-core 1.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate criware-utf-core 1.1.0
[INFO] finished tweaking crates.io crate criware-utf-core 1.1.0
[INFO] tweaked toml for crates.io crate criware-utf-core 1.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate criware-utf-core 1.1.0 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate criware-utf-core 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v2.0.14
[INFO] [stderr]   Downloaded proc-macro2 v1.0.96
[INFO] [stderr]   Downloaded thiserror-impl v2.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8d8fffbf1f1ab015b4ccce83839a52a782ae9052424e920c59e170c7aa4b897
[INFO] running `Command { std: "docker" "start" "-a" "c8d8fffbf1f1ab015b4ccce83839a52a782ae9052424e920c59e170c7aa4b897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8d8fffbf1f1ab015b4ccce83839a52a782ae9052424e920c59e170c7aa4b897", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8d8fffbf1f1ab015b4ccce83839a52a782ae9052424e920c59e170c7aa4b897", kill_on_drop: false }`
[INFO] [stdout] c8d8fffbf1f1ab015b4ccce83839a52a782ae9052424e920c59e170c7aa4b897
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92b58742a2cfb6cf56fe90e8b5ae1c827a490626378c001e31155ea206fc3ca0
[INFO] running `Command { std: "docker" "start" "-a" "92b58742a2cfb6cf56fe90e8b5ae1c827a490626378c001e31155ea206fc3ca0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.96
[INFO] [stderr]    Compiling thiserror v2.0.14
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling thiserror-impl v2.0.14
[INFO] [stderr]    Compiling criware-utf-core v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.06s
[INFO] running `Command { std: "docker" "inspect" "92b58742a2cfb6cf56fe90e8b5ae1c827a490626378c001e31155ea206fc3ca0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92b58742a2cfb6cf56fe90e8b5ae1c827a490626378c001e31155ea206fc3ca0", kill_on_drop: false }`
[INFO] [stdout] 92b58742a2cfb6cf56fe90e8b5ae1c827a490626378c001e31155ea206fc3ca0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 412ed648ba8848e1bd7ed6b3598ebf3c0690c0268f170499a4aae2d8d19e0933
[INFO] running `Command { std: "docker" "start" "-a" "412ed648ba8848e1bd7ed6b3598ebf3c0690c0268f170499a4aae2d8d19e0933", kill_on_drop: false }`
[INFO] [stderr]    Compiling criware-utf-core v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "412ed648ba8848e1bd7ed6b3598ebf3c0690c0268f170499a4aae2d8d19e0933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412ed648ba8848e1bd7ed6b3598ebf3c0690c0268f170499a4aae2d8d19e0933", kill_on_drop: false }`
[INFO] [stdout] 412ed648ba8848e1bd7ed6b3598ebf3c0690c0268f170499a4aae2d8d19e0933
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 46873a9d0147f84c0f509bf1c900449055f7816840d0b0f36eff9499ef7a0a1d
[INFO] running `Command { std: "docker" "start" "-a" "46873a9d0147f84c0f509bf1c900449055f7816840d0b0f36eff9499ef7a0a1d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/criware_utf_core-06c6701293038f38)
[INFO] [stdout] 
[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] [stderr]    Doc-tests criware_utf_core
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test src/reader.rs - reader::Reader::new (line 48) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::field_count (line 135) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::read_constant_column (line 234) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::read_value (line 369) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::more_column_data (line 168) - compile ... FAILED
[INFO] [stdout] test src/schema.rs - schema::Schema::has_column (line 98) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::read_rowed_column_opt (line 323) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::read_constant_column_opt (line 255) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::table_name (line 151) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::read_rowed_column (line 300) - compile ... FAILED
[INFO] [stdout] test src/reader.rs - reader::Reader::more_row_data (line 188) - compile ... FAILED
[INFO] [stdout] test src/schema.rs - schema::Schema::read (line 124) - compile ... FAILED
[INFO] [stdout] test src/table.rs - table::Table::read_packet (line 84) ... FAILED
[INFO] [stdout] test src/table.rs - table::Table::new (line 9) ... FAILED
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::end (line 89) - compile ... FAILED
[INFO] [stdout] test src/value.rs - value::utf_size_of (line 284) ... FAILED
[INFO] [stdout] test src/table.rs - table::Table::write (line 58) ... FAILED
[INFO] [stdout] test src/table.rs - table::Table::read (line 34) ... FAILED
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::new (line 62) - compile ... ok
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::push_rowed_column (line 209) - compile ... FAILED
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::push_rowed_column_opt (line 223) - compile ... FAILED
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::push_constant_column_opt (line 183) - compile ... FAILED
[INFO] [stdout] test src/value.rs - value::Value (line 163) ... ok
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::write_value (line 256) - compile ... FAILED
[INFO] [stdout] test src/writer.rs - writer::Writer<'a>::push_constant_column (line 164) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/reader.rs - reader::Reader::new (line 48) 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/reader.rs:52:46
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_48_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = File::open("random-table.bin")?;
[INFO] [stdout]   |                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_48_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = Reader::new(&mut file)?;
[INFO] [stdout] 9 +     Ok(())
[INFO] [stdout]   |
[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/reader.rs:53:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_48_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = Reader::new(&mut file)?;
[INFO] [stdout]   |                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_48_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = Reader::new(&mut file)?;
[INFO] [stdout] 9 +     Ok(())
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/reader.rs - reader::Reader::field_count (line 135) 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/reader.rs:139:46
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_135_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = File::open("random-table.bin")?;
[INFO] [stdout]   |                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_135_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 9 | assert_eq!(reader.field_count(), 7u16);
[INFO] [stdout] 10+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:140:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_135_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = Reader::new(&mut file)?;
[INFO] [stdout]   |                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_135_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 9 | assert_eq!(reader.field_count(), 7u16);
[INFO] [stdout] 10+     Ok(())
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/reader.rs - reader::Reader::read_constant_column (line 234) 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/reader.rs:238:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| let version: String = reader.read_constant_column("Version")?;
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:239:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| let version: String = reader.read_constant_column("Version")?;
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:240:63
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let file_count: u64 = reader.read_constant_column("FileCount")?;
[INFO] [stdout]   |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| let version: String = reader.read_constant_column("Version")?;
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:241:61
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 | let version: String = reader.read_constant_column("Version")?;
[INFO] [stdout]    |                                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_234_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5  | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10 | let version: String = reader.read_constant_column("Version")?;
[INFO] [stdout] 11 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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] ---- src/reader.rs - reader::Reader::read_value (line 369) 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/reader.rs:373:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:374:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:376:47
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 |     let name: String = reader.read_value(true)?;
[INFO] [stdout]    |                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:377:45
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 11 |     let crc32: u32 = reader.read_value(true)?;
[INFO] [stdout]    |                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_369_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                             +++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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] ---- src/reader.rs - reader::Reader::more_column_data (line 168) 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/reader.rs:172:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_168_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_168_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:173:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_168_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_168_0() -> Result<(), Box<dyn std::error::Error>> {
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/schema.rs - schema::Schema::has_column (line 98) 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/schema.rs:102:46
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_98_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = File::open("random-table.bin")?;
[INFO] [stdout]   |                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_98_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                            +++++++++++++++++++++++++++++++++++++++++
[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/schema.rs:103:37
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_98_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let schema = Schema::read(&mut file)?;
[INFO] [stdout]   |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_98_0() -> Result<(), Box<dyn std::error::Error>> {
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/reader.rs - reader::Reader::read_rowed_column_opt (line 323) 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/reader.rs:327:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_323_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_323_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:328:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_323_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_323_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:329:68
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_323_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let crc_included: bool = reader.read_rowed_column_opt::<u32>("Crc")?;
[INFO] [stdout]   |                                                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_323_0() -> Result<(), Box<dyn std::error::Error>> {
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/reader.rs - reader::Reader::read_constant_column_opt (line 255) 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/reader.rs:259:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 11| let crc32: Option<u32> = reader.read_constant_column_opt::<u32>("Crc")?;
[INFO] [stdout] 12+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:260:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 11| let crc32: Option<u32> = reader.read_constant_column_opt::<u32>("Crc")?;
[INFO] [stdout] 12+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:261:63
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let file_count: u64 = reader.read_constant_column("FileCount")?;
[INFO] [stdout]   |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 11| let crc32: Option<u32> = reader.read_constant_column_opt::<u32>("Crc")?;
[INFO] [stdout] 12+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:262:61
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 | let version: String = reader.read_constant_column("Version")?;
[INFO] [stdout]    |                                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5  | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 11 | let crc32: Option<u32> = reader.read_constant_column_opt::<u32>("Crc")?;
[INFO] [stdout] 12 +     Ok(())
[INFO] [stdout]    |
[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/reader.rs:263:71
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 11 | let crc32: Option<u32> = reader.read_constant_column_opt::<u32>("Crc")?;
[INFO] [stdout]    |                                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_255_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5  | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 11 | let crc32: Option<u32> = reader.read_constant_column_opt::<u32>("Crc")?;
[INFO] [stdout] 12 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 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] ---- src/reader.rs - reader::Reader::table_name (line 151) 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/reader.rs:155:46
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_151_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = File::open("random-table.bin")?;
[INFO] [stdout]   |                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_151_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 9 | assert_eq!(reader.table_name(), "ImportantTable");
[INFO] [stdout] 10+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:156:36
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_151_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = Reader::new(&mut file)?;
[INFO] [stdout]   |                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_151_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 9 | assert_eq!(reader.table_name(), "ImportantTable");
[INFO] [stdout] 10+     Ok(())
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/reader.rs - reader::Reader::read_rowed_column (line 300) 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/reader.rs:304:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| reader.read_constant_column::<String>("Name")?;
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:305:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| reader.read_constant_column::<String>("Name")?;
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:306:41
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | reader.read_constant_column::<i32>("ID")?;
[INFO] [stdout]   |                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| reader.read_constant_column::<String>("Name")?;
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[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/reader.rs:307:46
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 | reader.read_constant_column::<String>("Name")?;
[INFO] [stdout]    |                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_300_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5  | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10 | reader.read_constant_column::<String>("Name")?;
[INFO] [stdout] 11 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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] ---- src/reader.rs - reader::Reader::more_row_data (line 188) 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/reader.rs:192:55
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_188_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = std::fs::File::open("random-table.bin")?;
[INFO] [stdout]   |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_188_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/reader.rs:193:54
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_188_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let reader = criware_utf_core::Reader::new(&mut file)?;
[INFO] [stdout]   |                                                      ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_reader_rs_188_0() -> Result<(), Box<dyn std::error::Error>> {
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/schema.rs - schema::Schema::read (line 124) 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/schema.rs:128:46
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_124_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = File::open("random-table.bin")?;
[INFO] [stdout]   |                                              ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_124_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 9 | println!("{}", schema.table_name);
[INFO] [stdout] 10+     Ok(())
[INFO] [stdout]   |
[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/schema.rs:129:37
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_124_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | let schema = Schema::read(&mut file)?;
[INFO] [stdout]   |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_schema_rs_124_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 9 | println!("{}", schema.table_name);
[INFO] [stdout] 10+     Ok(())
[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 E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/table.rs - table::Table::read_packet (line 84) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `criware_utf`
[INFO] [stdout]  --> src/table.rs:86:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use criware_utf::{Packet, Table, utf_table};
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `criware_utf`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `criware_utf`, use `cargo add criware_utf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `constant` in this scope
[INFO] [stdout]  --> src/table.rs:89:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[constant]
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `read_packet` found for struct `Tab` in the current scope
[INFO] [stdout]   --> src/table.rs:96:35
[INFO] [stdout]    |
[INFO] [stdout] 5  | struct Tab {
[INFO] [stdout]    | ---------- function or associated item `read_packet` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     let table: Packet<Tab> = Tab::read_packet(&mut file, b"TAB ")?;
[INFO] [stdout]    |                                   ^^^^^^^^^^^ function or associated item not found in `Tab`
[INFO] [stdout]    |
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `read_packet`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `criware_utf_core::Table`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/table.rs - table::Table::new (line 9) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `criware_utf`
[INFO] [stdout]  --> src/table.rs:10:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use criware_utf::{Table, utf_table};
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `criware_utf`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `criware_utf`, use `cargo add criware_utf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `constant` in this scope
[INFO] [stdout]  --> src/table.rs:13:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     #[constant]
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `Tab` in the current scope
[INFO] [stdout]   --> src/table.rs:19:22
[INFO] [stdout]    |
[INFO] [stdout] 4  | struct Tab {
[INFO] [stdout]    | ---------- function or associated item `new` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     let table = Tab::new();
[INFO] [stdout]    |                      ^^^ function or associated item not found in `Tab`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `new`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `criware_utf_core::Table`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/writer.rs - writer::Writer<'a>::end (line 89) stdout ----
[INFO] [stdout] error: statements are terminated with a semicolon
[INFO] [stdout]   --> src/writer.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 10 | writer.end(file, 12, 1000)?:
[INFO] [stdout]    |                            ^
[INFO] [stdout]    |
[INFO] [stdout] help: use a semicolon instead
[INFO] [stdout]    |
[INFO] [stdout] 10 - writer.end(file, 12, 1000)?:
[INFO] [stdout] 10 + writer.end(file, 12, 1000)?;
[INFO] [stdout]    |
[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/writer.rs:93:51
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_89_0() {
[INFO] [stdout]   |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 7 | let mut file = File::create("important-table.bin")?;
[INFO] [stdout]   |                                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_89_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10| writer.end(file, 12, 1000)?:
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/writer.rs:96:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | writer.end(file, 12, 1000)?:
[INFO] [stdout]    |        --- ^^^^ expected `&mut dyn Write`, found `File`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        arguments to this method are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut dyn std::io::Write`
[INFO] [stdout]                          found struct `File`
[INFO] [stdout] note: method defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/writer.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn end(&self, writer: &mut dyn Write, row_size: u16, row_count: u32) -> Result<()> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] help: consider mutably borrowing here
[INFO] [stdout]    |
[INFO] [stdout] 10 | writer.end(&mut file, 12, 1000)?:
[INFO] [stdout]    |            ++++
[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/writer.rs:96:27
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_89_0() {
[INFO] [stdout]    |                                      ------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 | writer.end(file, 12, 1000)?:
[INFO] [stdout]    |                           ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_89_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5  | use std::fs::File;
[INFO] [stdout] ...
[INFO] [stdout] 10 | writer.end(file, 12, 1000)?:
[INFO] [stdout] 11 +     Ok(())
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/value.rs - value::utf_size_of (line 284) stdout ----
[INFO] [stdout] error[E0412]: cannot find type `Cow` in this scope
[INFO] [stdout]   --> src/value.rs:296:43
[INFO] [stdout]    |
[INFO] [stdout] 13 |   fn to_primitive<'a>(&'a self) -> Result<Cow<'a, Self::Primitive>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                           ^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 3  + use std::borrow::Cow;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Cow`
[INFO] [stdout]   --> src/value.rs:297:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |       Ok(Cow::Owned((self.0 << 4) | self.1))
[INFO] [stdout]    |          ^^^ use of undeclared type `Cow`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout] 3  + use std::borrow::Cow;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/table.rs - table::Table::write (line 58) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `criware_utf`
[INFO] [stdout]  --> src/table.rs:60:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use criware_utf::{Table, utf_table};
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `criware_utf`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `criware_utf`, use `cargo add criware_utf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `constant` in this scope
[INFO] [stdout]  --> src/table.rs:63:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[constant]
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `Tab` in the current scope
[INFO] [stdout]   --> src/table.rs:70:22
[INFO] [stdout]    |
[INFO] [stdout] 5  | struct Tab {
[INFO] [stdout]    | ---------- function or associated item `new` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     let table = Tab::new();
[INFO] [stdout]    |                      ^^^ function or associated item not found in `Tab`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following trait defines an item `new`, perhaps you need to implement it:
[INFO] [stdout]            candidate #1: `criware_utf_core::Table`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/table.rs - table::Table::read (line 34) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `criware_utf`
[INFO] [stdout]  --> src/table.rs:36:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use criware_utf::{Table, utf_table};
[INFO] [stdout]   |     ^^^^^^^^^^^ use of unresolved module or unlinked crate `criware_utf`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `criware_utf`, use `cargo add criware_utf` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `constant` in this scope
[INFO] [stdout]  --> src/table.rs:39:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     #[constant]
[INFO] [stdout]   |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `read` found for struct `Tab` in the current scope
[INFO] [stdout]   --> src/table.rs:46:22
[INFO] [stdout]    |
[INFO] [stdout] 5  | struct Tab {
[INFO] [stdout]    | ---------- function or associated item `read` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     let table = Tab::read(&mut file)?;
[INFO] [stdout]    |                      ^^^^ function or associated item not found in `Tab`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]    = note: the following traits define an item `read`, perhaps you need to implement one of them:
[INFO] [stdout]            candidate #1: `criware_utf_core::Table`
[INFO] [stdout]            candidate #2: `std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/writer.rs - writer::Writer<'a>::push_rowed_column (line 209) stdout ----
[INFO] [stdout] error[E0596]: cannot borrow `writer` as mutable, as it is not declared as mutable
[INFO] [stdout]  --> src/writer.rs:213:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | writer.push_rowed_column::<u64>("ID");
[INFO] [stdout]   | ^^^^^^ cannot borrow as mutable
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]   |
[INFO] [stdout] 6 | let mut writer = Writer::new("ImportantTable");
[INFO] [stdout]   |     +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/writer.rs - writer::Writer<'a>::push_rowed_column_opt (line 223) stdout ----
[INFO] [stdout] error[E0596]: cannot borrow `writer` as mutable, as it is not declared as mutable
[INFO] [stdout]  --> src/writer.rs:229:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | writer.push_rowed_column_opt::<u64>("ID", context.is_included("ID"));
[INFO] [stdout]   | ^^^^^^ cannot borrow as mutable
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]   |
[INFO] [stdout] 8 | let mut writer = Writer::new("ImportantTable");
[INFO] [stdout]   |     +++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/writer.rs - writer::Writer<'a>::push_constant_column_opt (line 183) 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/writer.rs:188:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_183_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 8 | writer.push_constant_column_opt("Crc", &crc32)?;
[INFO] [stdout]   |                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_183_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use criware_utf_core::Writer;
[INFO] [stdout] ...
[INFO] [stdout] 8 | writer.push_constant_column_opt("Crc", &crc32)?;
[INFO] [stdout] 9 +     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/writer.rs - writer::Writer<'a>::write_value (line 256) stdout ----
[INFO] [stdout] error[E0282]: type annotations needed for `Vec<_>`
[INFO] [stdout]  --> src/writer.rs:259:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | let rows = Vec::new();
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     writer.write_value::<u64>(true, &row.id)?;
[INFO] [stdout]   |                                      --- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout] help: consider giving `rows` an explicit type, where the placeholders `_` are specified
[INFO] [stdout]   |
[INFO] [stdout] 6 | let rows: Vec<T> = Vec::new();
[INFO] [stdout]   |         ++++++++
[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/writer.rs:262:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_256_0() {
[INFO] [stdout]   |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 |     writer.write_value::<u64>(true, &row.id)?;
[INFO] [stdout]   |                                             ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_256_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]   |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/writer.rs:263:40
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_256_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 |     writer.write_value(true, &row.name)?;
[INFO] [stdout]    |                                        ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_256_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                             +++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0282.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/writer.rs - writer::Writer<'a>::push_constant_column (line 164) stdout ----
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/writer.rs:171:46
[INFO] [stdout]     |
[INFO] [stdout] 10  |     writer.push_constant_column("FileCount", file_count)?;
[INFO] [stdout]     |            --------------------              ^^^^^^^^^^ expected `&_`, found `u64`
[INFO] [stdout]     |            |
[INFO] [stdout]     |            arguments to this method are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&_`
[INFO] [stdout]                     found type `u64`
[INFO] [stdout] note: method defined here
[INFO] [stdout]    --> /opt/rustwide/workdir/src/writer.rs:176:12
[INFO] [stdout]     |
[INFO] [stdout] 176 |     pub fn push_constant_column<T: Value>(&mut self, name: &'a str, value: &'a T) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]     |
[INFO] [stdout] 10  |     writer.push_constant_column("FileCount", &file_count)?;
[INFO] [stdout]     |                                              +
[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/writer.rs:171:57
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_164_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 10 |     writer.push_constant_column("FileCount", file_count)?;
[INFO] [stdout]    |                                                         ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_164_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                             +++++++++++++++++++++++++++++++++++++++++
[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/writer.rs:172:63
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_164_0() {
[INFO] [stdout]    |                                      -------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 11 |     writer.push_constant_column::<String>("Comment", &comment)?;
[INFO] [stdout]    |                                                               ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]    |
[INFO] [stdout] 4  | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_writer_rs_164_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                             +++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0308.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/reader.rs - reader::Reader::field_count (line 135)
[INFO] [stdout]     src/reader.rs - reader::Reader::more_column_data (line 168)
[INFO] [stdout]     src/reader.rs - reader::Reader::more_row_data (line 188)
[INFO] [stdout]     src/reader.rs - reader::Reader::new (line 48)
[INFO] [stdout]     src/reader.rs - reader::Reader::read_constant_column (line 234)
[INFO] [stdout]     src/reader.rs - reader::Reader::read_constant_column_opt (line 255)
[INFO] [stdout]     src/reader.rs - reader::Reader::read_rowed_column (line 300)
[INFO] [stdout]     src/reader.rs - reader::Reader::read_rowed_column_opt (line 323)
[INFO] [stdout]     src/reader.rs - reader::Reader::read_value (line 369)
[INFO] [stdout]     src/reader.rs - reader::Reader::table_name (line 151)
[INFO] [stdout]     src/schema.rs - schema::Schema::has_column (line 98)
[INFO] [stdout]     src/schema.rs - schema::Schema::read (line 124)
[INFO] [stdout]     src/table.rs - table::Table::new (line 9)
[INFO] [stdout]     src/table.rs - table::Table::read (line 34)
[INFO] [stdout]     src/table.rs - table::Table::read_packet (line 84)
[INFO] [stdout]     src/table.rs - table::Table::write (line 58)
[INFO] [stdout]     src/value.rs - value::utf_size_of (line 284)
[INFO] [stdout]     src/writer.rs - writer::Writer<'a>::end (line 89)
[INFO] [stdout]     src/writer.rs - writer::Writer<'a>::push_constant_column (line 164)
[INFO] [stdout]     src/writer.rs - writer::Writer<'a>::push_constant_column_opt (line 183)
[INFO] [stdout]     src/writer.rs - writer::Writer<'a>::push_rowed_column (line 209)
[INFO] [stdout]     src/writer.rs - writer::Writer<'a>::push_rowed_column_opt (line 223)
[INFO] [stdout]     src/writer.rs - writer::Writer<'a>::write_value (line 256)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 23 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.18s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "46873a9d0147f84c0f509bf1c900449055f7816840d0b0f36eff9499ef7a0a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46873a9d0147f84c0f509bf1c900449055f7816840d0b0f36eff9499ef7a0a1d", kill_on_drop: false }`
[INFO] [stdout] 46873a9d0147f84c0f509bf1c900449055f7816840d0b0f36eff9499ef7a0a1d
