[INFO] fetching crate synoptic 2.0.0...
[INFO] testing synoptic-2.0.0 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] extracting crate synoptic 2.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate synoptic 2.0.0 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synoptic 2.0.0
[INFO] finished tweaking crates.io crate synoptic 2.0.0
[INFO] tweaked toml for crates.io crate synoptic 2.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate synoptic 2.0.0 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lliw v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55a38dafe0a74d4eab250b24926b349c1c9e3f2fa56189f24588614d13d9a6b6
[INFO] running `Command { std: "docker" "start" "-a" "55a38dafe0a74d4eab250b24926b349c1c9e3f2fa56189f24588614d13d9a6b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55a38dafe0a74d4eab250b24926b349c1c9e3f2fa56189f24588614d13d9a6b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55a38dafe0a74d4eab250b24926b349c1c9e3f2fa56189f24588614d13d9a6b6", kill_on_drop: false }`
[INFO] [stdout] 55a38dafe0a74d4eab250b24926b349c1c9e3f2fa56189f24588614d13d9a6b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49a9e8007c4b214a6f273505f0e1a8f26dec97ca99842f65af0bd7b312a31e85
[INFO] running `Command { std: "docker" "start" "-a" "49a9e8007c4b214a6f273505f0e1a8f26dec97ca99842f65af0bd7b312a31e85", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.3.3
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling synoptic v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.48s
[INFO] running `Command { std: "docker" "inspect" "49a9e8007c4b214a6f273505f0e1a8f26dec97ca99842f65af0bd7b312a31e85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49a9e8007c4b214a6f273505f0e1a8f26dec97ca99842f65af0bd7b312a31e85", kill_on_drop: false }`
[INFO] [stdout] 49a9e8007c4b214a6f273505f0e1a8f26dec97ca99842f65af0bd7b312a31e85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16b48c17d1f8a157dbc88776d1fdf539c5c932c4b9f6241b9cd861406a99a3e0
[INFO] running `Command { std: "docker" "start" "-a" "16b48c17d1f8a157dbc88776d1fdf539c5c932c4b9f6241b9cd861406a99a3e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling lliw v0.2.0
[INFO] [stderr]    Compiling synoptic v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> examples/debug.rs:25:36
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 TokOpt::Some(text, kind) => print!("({text})"),
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/debug.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut code = CODE.split('\n').map(|x| x.to_string()).collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.13s
[INFO] running `Command { std: "docker" "inspect" "16b48c17d1f8a157dbc88776d1fdf539c5c932c4b9f6241b9cd861406a99a3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b48c17d1f8a157dbc88776d1fdf539c5c932c4b9f6241b9cd861406a99a3e0", kill_on_drop: false }`
[INFO] [stdout] 16b48c17d1f8a157dbc88776d1fdf539c5c932c4b9f6241b9cd861406a99a3e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 53237e482716d22f7ed7e108060cec04145296a1631326cc4ebca69898b2726b
[INFO] running `Command { std: "docker" "start" "-a" "53237e482716d22f7ed7e108060cec04145296a1631326cc4ebca69898b2726b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `kind`
[INFO] [stderr]   --> examples/debug.rs:25:36
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 TokOpt::Some(text, kind) => print!("({text})"),
[INFO] [stderr]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/debug.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut code = CODE.split('\n').map(|x| x.to_string()).collect();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `synoptic` (example "debug") generated 2 warnings (run `cargo fix --example "debug"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/synoptic-43cfe021706d3761)
[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 synoptic
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Highlighter::line (line 284) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Highlighter::line (line 284) stdout ----
[INFO] [stdout] error: expected `;`, found `highlighter`
[INFO] [stdout]   --> src/lib.rs:292:54
[INFO] [stdout]    |
[INFO] [stdout] 10 | highlighter.line(0, &"this is a keyword".to_string())
[INFO] [stdout]    |                                                      ^ help: add `;` here
[INFO] [stdout] 11 | // Get the TokOpt for the second line
[INFO] [stdout] 12 | highlighter.line(1, &"second line!".to_string())
[INFO] [stdout]    | ----------- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Highlighter`
[INFO] [stdout]  --> src/lib.rs:285:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | let highlighter = Highlighter::new(4); // Tab ('\t') has a display width of 4
[INFO] [stdout]   |                   ^^^^^^^^^^^ use of undeclared type `Highlighter`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use synoptic::Highlighter;
[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 E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Highlighter::line (line 284)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "53237e482716d22f7ed7e108060cec04145296a1631326cc4ebca69898b2726b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53237e482716d22f7ed7e108060cec04145296a1631326cc4ebca69898b2726b", kill_on_drop: false }`
[INFO] [stdout] 53237e482716d22f7ed7e108060cec04145296a1631326cc4ebca69898b2726b
[INFO] testing synoptic-2.0.0 against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] extracting crate synoptic 2.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate synoptic 2.0.0 on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate synoptic 2.0.0
[INFO] finished tweaking crates.io crate synoptic 2.0.0
[INFO] tweaked toml for crates.io crate synoptic 2.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate synoptic 2.0.0 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f36f7784217143bec7bb64e0101a050d2dc9c9ca4c735fb161f8004c976a416b
[INFO] running `Command { std: "docker" "start" "-a" "f36f7784217143bec7bb64e0101a050d2dc9c9ca4c735fb161f8004c976a416b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f36f7784217143bec7bb64e0101a050d2dc9c9ca4c735fb161f8004c976a416b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f36f7784217143bec7bb64e0101a050d2dc9c9ca4c735fb161f8004c976a416b", kill_on_drop: false }`
[INFO] [stdout] f36f7784217143bec7bb64e0101a050d2dc9c9ca4c735fb161f8004c976a416b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbee9b9d82c49ac0a52ce9b840fa23b259c09998c2d0471a60f2727b0b3d8986
[INFO] running `Command { std: "docker" "start" "-a" "cbee9b9d82c49ac0a52ce9b840fa23b259c09998c2d0471a60f2727b0b3d8986", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.3.3
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling synoptic v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.31s
[INFO] running `Command { std: "docker" "inspect" "cbee9b9d82c49ac0a52ce9b840fa23b259c09998c2d0471a60f2727b0b3d8986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbee9b9d82c49ac0a52ce9b840fa23b259c09998c2d0471a60f2727b0b3d8986", kill_on_drop: false }`
[INFO] [stdout] cbee9b9d82c49ac0a52ce9b840fa23b259c09998c2d0471a60f2727b0b3d8986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 152f037caad7a439dfb99cb82859bb2122963683f62eb40fb3177469816df9fa
[INFO] running `Command { std: "docker" "start" "-a" "152f037caad7a439dfb99cb82859bb2122963683f62eb40fb3177469816df9fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling lliw v0.2.0
[INFO] [stderr]    Compiling synoptic v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `kind`
[INFO] [stdout]   --> examples/debug.rs:25:36
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 TokOpt::Some(text, kind) => print!("({text})"),
[INFO] [stdout]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/debug.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut code = CODE.split('\n').map(|x| x.to_string()).collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "152f037caad7a439dfb99cb82859bb2122963683f62eb40fb3177469816df9fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "152f037caad7a439dfb99cb82859bb2122963683f62eb40fb3177469816df9fa", kill_on_drop: false }`
[INFO] [stdout] 152f037caad7a439dfb99cb82859bb2122963683f62eb40fb3177469816df9fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31248703956df3e6e8a3c9ac2d93fda972c56ff06bda3c042c7a3091a0538e6d
[INFO] running `Command { std: "docker" "start" "-a" "31248703956df3e6e8a3c9ac2d93fda972c56ff06bda3c042c7a3091a0538e6d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `kind`
[INFO] [stderr]   --> examples/debug.rs:25:36
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 TokOpt::Some(text, kind) => print!("({text})"),
[INFO] [stderr]    |                                    ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/debug.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut code = CODE.split('\n').map(|x| x.to_string()).collect();
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `synoptic` (example "debug") generated 2 warnings (run `cargo fix --example "debug"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/synoptic-43cfe021706d3761)
[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 synoptic
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Highlighter::line (line 284) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Highlighter::line (line 284) stdout ----
[INFO] [stdout] error: expected `;`, found `highlighter`
[INFO] [stdout]   --> src/lib.rs:292:54
[INFO] [stdout]    |
[INFO] [stdout] 10 | highlighter.line(0, &"this is a keyword".to_string())
[INFO] [stdout]    |                                                      ^ help: add `;` here
[INFO] [stdout] 11 | // Get the TokOpt for the second line
[INFO] [stdout] 12 | highlighter.line(1, &"second line!".to_string())
[INFO] [stdout]    | ----------- unexpected token
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Highlighter`
[INFO] [stdout]  --> src/lib.rs:285:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | let highlighter = Highlighter::new(4); // Tab ('\t') has a display width of 4
[INFO] [stdout]   |                   ^^^^^^^^^^^ use of undeclared type `Highlighter`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 2 + use synoptic::Highlighter;
[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 E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Highlighter::line (line 284)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "31248703956df3e6e8a3c9ac2d93fda972c56ff06bda3c042c7a3091a0538e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31248703956df3e6e8a3c9ac2d93fda972c56ff06bda3c042c7a3091a0538e6d", kill_on_drop: false }`
[INFO] [stdout] 31248703956df3e6e8a3c9ac2d93fda972c56ff06bda3c042c7a3091a0538e6d
