[INFO] cloning repository https://github.com/qknogxxb/unidown
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qknogxxb/unidown" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqknogxxb%2Funidown", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqknogxxb%2Funidown'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd5ca035b26011cea3acf5f66d8adfa8cbf3ea02
[INFO] checking qknogxxb/unidown against nightly-2024-02-05 for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqknogxxb%2Funidown" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qknogxxb/unidown on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qknogxxb/unidown
[INFO] finished tweaking git repo https://github.com/qknogxxb/unidown
[INFO] tweaked toml for git repo https://github.com/qknogxxb/unidown written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/qknogxxb/unidown 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fd8ebc38ed3dfe55545eaea14ea47c0447423225a8b879104aac93d376091d6
[INFO] running `Command { std: "docker" "start" "-a" "4fd8ebc38ed3dfe55545eaea14ea47c0447423225a8b879104aac93d376091d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fd8ebc38ed3dfe55545eaea14ea47c0447423225a8b879104aac93d376091d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fd8ebc38ed3dfe55545eaea14ea47c0447423225a8b879104aac93d376091d6", kill_on_drop: false }`
[INFO] [stdout] 4fd8ebc38ed3dfe55545eaea14ea47c0447423225a8b879104aac93d376091d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11e44c44474aeb6ff7d7e4da557e92cfe22104dd8cb685aea35879edf64a752b
[INFO] running `Command { std: "docker" "start" "-a" "11e44c44474aeb6ff7d7e4da557e92cfe22104dd8cb685aea35879edf64a752b", kill_on_drop: false }`
[INFO] [stderr]     Checking unidown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/unescape.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum EscapeError {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     LoneSlash,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     /// Invalid escape character (e.g. '\z').
[INFO] [stdout] 21 |     InvalidEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 22 |     /// Raw '\r' encountered.
[INFO] [stdout] 23 |     BareCarriageReturn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     EscapeOnlyChar,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     TooShortHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     /// Invalid character in numeric escape (e.g. '\xz')
[INFO] [stdout] 32 |     InvalidCharInHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     NoBraceInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 37 |     /// Non-hexadecimal value in '\u{..}'.
[INFO] [stdout] 38 |     InvalidCharInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     /// '\u{}'
[INFO] [stdout] 40 |     EmptyUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     /// No closing brace in '\u{..}', e.g. '\u{12'.
[INFO] [stdout] 42 |     UnclosedUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     /// '\u{_12}'
[INFO] [stdout] 44 |     LeadingUnderscoreUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     /// More than 6 characters in '\u{..}', e.g. '\u{10FFFF_FF}'
[INFO] [stdout] 46 |     OverlongUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     /// Invalid in-bound unicode character code, e.g. '\u{DFFF}'.
[INFO] [stdout] 48 |     LoneSurrogateUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 49 |     /// Out of bounds unicode character code, e.g. '\u{FFFFFF}'.
[INFO] [stdout] 50 |     OutOfRangeUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EscapeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Single` and `Double` are never constructed
[INFO] [stdout]   --> src/unescape.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum Mode {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 69 |     Single,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 70 |     Double,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan_escape` is never used
[INFO] [stdout]   --> src/unescape.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn scan_escape(cursor: &mut Cursor) -> Result<char, EscapeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unescape_str` is never used
[INFO] [stdout]    --> src/unescape.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn unescape_str<F>(mut cursor: Cursor, mode: Mode, callback: &mut F)
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/unescape.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum EscapeError {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     LoneSlash,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     /// Invalid escape character (e.g. '\z').
[INFO] [stdout] 21 |     InvalidEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 22 |     /// Raw '\r' encountered.
[INFO] [stdout] 23 |     BareCarriageReturn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     EscapeOnlyChar,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     TooShortHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     /// Invalid character in numeric escape (e.g. '\xz')
[INFO] [stdout] 32 |     InvalidCharInHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     NoBraceInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 37 |     /// Non-hexadecimal value in '\u{..}'.
[INFO] [stdout] 38 |     InvalidCharInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     /// '\u{}'
[INFO] [stdout] 40 |     EmptyUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     /// No closing brace in '\u{..}', e.g. '\u{12'.
[INFO] [stdout] 42 |     UnclosedUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     /// '\u{_12}'
[INFO] [stdout] 44 |     LeadingUnderscoreUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     /// More than 6 characters in '\u{..}', e.g. '\u{10FFFF_FF}'
[INFO] [stdout] 46 |     OverlongUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     /// Invalid in-bound unicode character code, e.g. '\u{DFFF}'.
[INFO] [stdout] 48 |     LoneSurrogateUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 49 |     /// Out of bounds unicode character code, e.g. '\u{FFFFFF}'.
[INFO] [stdout] 50 |     OutOfRangeUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EscapeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Single` and `Double` are never constructed
[INFO] [stdout]   --> src/unescape.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum Mode {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 69 |     Single,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 70 |     Double,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan_escape` is never used
[INFO] [stdout]   --> src/unescape.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn scan_escape(cursor: &mut Cursor) -> Result<char, EscapeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unescape_str` is never used
[INFO] [stdout]    --> src/unescape.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn unescape_str<F>(mut cursor: Cursor, mode: Mode, callback: &mut F)
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "11e44c44474aeb6ff7d7e4da557e92cfe22104dd8cb685aea35879edf64a752b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e44c44474aeb6ff7d7e4da557e92cfe22104dd8cb685aea35879edf64a752b", kill_on_drop: false }`
[INFO] [stdout] 11e44c44474aeb6ff7d7e4da557e92cfe22104dd8cb685aea35879edf64a752b
[INFO] checking qknogxxb/unidown against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqknogxxb%2Funidown" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qknogxxb/unidown on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qknogxxb/unidown
[INFO] finished tweaking git repo https://github.com/qknogxxb/unidown
[INFO] tweaked toml for git repo https://github.com/qknogxxb/unidown written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/qknogxxb/unidown 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0fe7850dd0bf41c3616de98f8adbba4ddc2db0185e93752ebda9dde363a0f15
[INFO] running `Command { std: "docker" "start" "-a" "e0fe7850dd0bf41c3616de98f8adbba4ddc2db0185e93752ebda9dde363a0f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0fe7850dd0bf41c3616de98f8adbba4ddc2db0185e93752ebda9dde363a0f15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0fe7850dd0bf41c3616de98f8adbba4ddc2db0185e93752ebda9dde363a0f15", kill_on_drop: false }`
[INFO] [stdout] e0fe7850dd0bf41c3616de98f8adbba4ddc2db0185e93752ebda9dde363a0f15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 534a9c9bda659a24afc286e85333ae8ba4f78ef4de853677a0a46b663f18ce05
[INFO] running `Command { std: "docker" "start" "-a" "534a9c9bda659a24afc286e85333ae8ba4f78ef4de853677a0a46b663f18ce05", kill_on_drop: false }`
[INFO] [stderr]     Checking unidown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `tset`
[INFO] [stdout]    --> src/unescape.rs:194:7
[INFO] [stdout]     |
[INFO] [stdout] 194 | #[cfg(tset)]
[INFO] [stdout]     |       ^^^^ help: there is a config with a similar name: `test`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(tset)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `tset`
[INFO] [stdout]    --> src/unescape.rs:194:7
[INFO] [stdout]     |
[INFO] [stdout] 194 | #[cfg(tset)]
[INFO] [stdout]     |       ^^^^ help: there is a config with a similar name: `test`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(tset)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/unescape.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum EscapeError {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     LoneSlash,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     /// Invalid escape character (e.g. '\z').
[INFO] [stdout] 21 |     InvalidEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 22 |     /// Raw '\r' encountered.
[INFO] [stdout] 23 |     BareCarriageReturn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     EscapeOnlyChar,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     TooShortHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     /// Invalid character in numeric escape (e.g. '\xz')
[INFO] [stdout] 32 |     InvalidCharInHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     NoBraceInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 37 |     /// Non-hexadecimal value in '\u{..}'.
[INFO] [stdout] 38 |     InvalidCharInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     /// '\u{}'
[INFO] [stdout] 40 |     EmptyUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     /// No closing brace in '\u{..}', e.g. '\u{12'.
[INFO] [stdout] 42 |     UnclosedUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     /// '\u{_12}'
[INFO] [stdout] 44 |     LeadingUnderscoreUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     /// More than 6 characters in '\u{..}', e.g. '\u{10FFFF_FF}'
[INFO] [stdout] 46 |     OverlongUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     /// Invalid in-bound unicode character code, e.g. '\u{DFFF}'.
[INFO] [stdout] 48 |     LoneSurrogateUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 49 |     /// Out of bounds unicode character code, e.g. '\u{FFFFFF}'.
[INFO] [stdout] 50 |     OutOfRangeUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EscapeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Single` and `Double` are never constructed
[INFO] [stdout]   --> src/unescape.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum Mode {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 69 |     Single,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 70 |     Double,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan_escape` is never used
[INFO] [stdout]   --> src/unescape.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn scan_escape(cursor: &mut Cursor) -> Result<char, EscapeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unescape_str` is never used
[INFO] [stdout]    --> src/unescape.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn unescape_str<F>(mut cursor: Cursor, mode: Mode, callback: &mut F)
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/unescape.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum EscapeError {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 19 |     LoneSlash,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 20 |     /// Invalid escape character (e.g. '\z').
[INFO] [stdout] 21 |     InvalidEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 22 |     /// Raw '\r' encountered.
[INFO] [stdout] 23 |     BareCarriageReturn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     EscapeOnlyChar,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     TooShortHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     /// Invalid character in numeric escape (e.g. '\xz')
[INFO] [stdout] 32 |     InvalidCharInHexEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     NoBraceInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 37 |     /// Non-hexadecimal value in '\u{..}'.
[INFO] [stdout] 38 |     InvalidCharInUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     /// '\u{}'
[INFO] [stdout] 40 |     EmptyUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     /// No closing brace in '\u{..}', e.g. '\u{12'.
[INFO] [stdout] 42 |     UnclosedUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     /// '\u{_12}'
[INFO] [stdout] 44 |     LeadingUnderscoreUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 45 |     /// More than 6 characters in '\u{..}', e.g. '\u{10FFFF_FF}'
[INFO] [stdout] 46 |     OverlongUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 47 |     /// Invalid in-bound unicode character code, e.g. '\u{DFFF}'.
[INFO] [stdout] 48 |     LoneSurrogateUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 49 |     /// Out of bounds unicode character code, e.g. '\u{FFFFFF}'.
[INFO] [stdout] 50 |     OutOfRangeUnicodeEscape,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EscapeError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Single` and `Double` are never constructed
[INFO] [stdout]   --> src/unescape.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub enum Mode {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 69 |     Single,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 70 |     Double,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Mode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `scan_escape` is never used
[INFO] [stdout]   --> src/unescape.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn scan_escape(cursor: &mut Cursor) -> Result<char, EscapeError> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unescape_str` is never used
[INFO] [stdout]    --> src/unescape.rs:172:8
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub fn unescape_str<F>(mut cursor: Cursor, mode: Mode, callback: &mut F)
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unidown` (lib) due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `unidown` (lib test) due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "534a9c9bda659a24afc286e85333ae8ba4f78ef4de853677a0a46b663f18ce05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "534a9c9bda659a24afc286e85333ae8ba4f78ef4de853677a0a46b663f18ce05", kill_on_drop: false }`
[INFO] [stdout] 534a9c9bda659a24afc286e85333ae8ba4f78ef4de853677a0a46b663f18ce05
