[INFO] fetching crate custom-print 1.0.0...
[INFO] checking custom-print-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate custom-print 1.0.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate custom-print 1.0.0
[INFO] finished tweaking crates.io crate custom-print 1.0.0
[INFO] tweaked toml for crates.io crate custom-print 1.0.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate custom-print 1.0.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 68 packages to latest compatible versions
[INFO] [stderr]       Adding readme-sync v0.2.1 (available: v0.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07524c62410e9c74e0b788536ece76887b3561cf3024a642f9c9cb8c0c320acc
[INFO] running `Command { std: "docker" "start" "-a" "07524c62410e9c74e0b788536ece76887b3561cf3024a642f9c9cb8c0c320acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07524c62410e9c74e0b788536ece76887b3561cf3024a642f9c9cb8c0c320acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07524c62410e9c74e0b788536ece76887b3561cf3024a642f9c9cb8c0c320acc", kill_on_drop: false }`
[INFO] [stdout] 07524c62410e9c74e0b788536ece76887b3561cf3024a642f9c9cb8c0c320acc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e7d77656a3e6e727a541aba27c6ac410b2897f3041528f5d78b8a15748c2dd2
[INFO] running `Command { std: "docker" "start" "-a" "2e7d77656a3e6e727a541aba27c6ac410b2897f3041528f5d78b8a15748c2dd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking codemap v0.1.3
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking codemap-diagnostic v0.1.2
[INFO] [stderr]     Checking semver v1.0.27
[INFO] [stderr]     Checking custom-print v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.1
[INFO] [stderr]     Checking zerovec v0.11.5
[INFO] [stderr]     Checking zerotrie v0.2.3
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking tinystr v0.8.2
[INFO] [stderr]     Checking potential_utf v0.1.4
[INFO] [stderr]     Checking icu_locale_core v2.1.1
[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]     Checking icu_provider v2.1.1
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking icu_properties v2.1.1
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking readme-sync v0.2.1
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]   --> tests/panic_hook.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | custom_print::define_init_panic_hook!(concat, crate::write);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `$crate::define_init_panic_hook` which comes from the expansion of the macro `custom_print::define_init_panic_hook` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:40:31
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let (output, line) = (try_dbg!("first"), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:40:31
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let (output, line) = (try_dbg!("first"), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:40:31
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let (output, line) = (try_dbg!("first"), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:41:20
[INFO] [stdout]    |
[INFO] [stdout] 41 |         assert_eq!(output, Ok("first"));
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:41:28
[INFO] [stdout]    |
[INFO] [stdout] 41 |         assert_eq!(output, Ok("first"));
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         assert_eq!(output, Ok("first"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         assert_eq!(output, Ok("first"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         assert_eq!(output, Ok("first"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         assert_eq!(output, Ok("first"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let (output, line) = (try_dbg!(second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let (output, line) = (try_dbg!(second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:47:31
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let (output, line) = (try_dbg!(second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:48:20
[INFO] [stdout]    |
[INFO] [stdout] 48 |         assert_eq!(output, Ok("second"));
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:48:28
[INFO] [stdout]    |
[INFO] [stdout] 48 |         assert_eq!(output, Ok("second"));
[INFO] [stdout]    |                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         assert_eq!(output, Ok("second"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         assert_eq!(output, Ok("second"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         assert_eq!(output, Ok("second"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<&str, NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         assert_eq!(output, Ok("second"));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:54:31
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let (output, line) = (try_dbg!("first", second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:54:31
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let (output, line) = (try_dbg!("first", second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:54:31
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let (output, line) = (try_dbg!("first", second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:54:31
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let (output, line) = (try_dbg!("first", second_var), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:55:20
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:65:31
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let (output, line) = (try_dbg!(("first", second_var)), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:65:31
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let (output, line) = (try_dbg!(("first", second_var)), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:65:31
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let (output, line) = (try_dbg!(("first", second_var)), line!());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::_try_dbgwrite_impl` which comes from the expansion of the macro `try_dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:66:20
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:66:28
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(&str, &str), NeverError>
[INFO] [stdout]   --> tests/try_dbg.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(output, Ok(("first", "second")));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `custom-print` (test "try_dbg") due to 37 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2e7d77656a3e6e727a541aba27c6ac410b2897f3041528f5d78b8a15748c2dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e7d77656a3e6e727a541aba27c6ac410b2897f3041528f5d78b8a15748c2dd2", kill_on_drop: false }`
[INFO] [stdout] 2e7d77656a3e6e727a541aba27c6ac410b2897f3041528f5d78b8a15748c2dd2
