[INFO] fetching crate cackle 0.2.0...
[INFO] checking cackle-0.2.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate cackle 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cackle 0.2.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cackle 0.2.0
[INFO] finished tweaking crates.io crate cackle 0.2.0
[INFO] tweaked toml for crates.io crate cackle 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cackle 0.2.0 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v2.0.3
[INFO] [stderr]   Downloaded strum_macros v0.25.2
[INFO] [stderr]   Downloaded ar v0.9.0
[INFO] [stderr]   Downloaded cargo-platform v0.1.3
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v727.0.0
[INFO] [stderr]   Downloaded clap v4.3.23
[INFO] [stderr]   Downloaded serde_derive v1.0.185
[INFO] [stderr]   Downloaded serde v1.0.185
[INFO] [stderr]   Downloaded ratatui v0.23.0
[INFO] [stderr]   Downloaded clap_builder v4.3.23
[INFO] [stderr]   Downloaded winnow v0.5.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f879a64afae225977920c0841e666fac5933ab03b842c5162e301c08013de9a0
[INFO] running `Command { std: "docker" "start" "-a" "f879a64afae225977920c0841e666fac5933ab03b842c5162e301c08013de9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f879a64afae225977920c0841e666fac5933ab03b842c5162e301c08013de9a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f879a64afae225977920c0841e666fac5933ab03b842c5162e301c08013de9a0", kill_on_drop: false }`
[INFO] [stdout] f879a64afae225977920c0841e666fac5933ab03b842c5162e301c08013de9a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62170037afcb19c38de1655ebed9658c07f5863dd385e0e6a90f24f1a2889e5d
[INFO] running `Command { std: "docker" "start" "-a" "62170037afcb19c38de1655ebed9658c07f5863dd385e0e6a90f24f1a2889e5d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.185
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling thiserror-core v1.0.38
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking winnow v0.5.14
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling indoc v2.0.3
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.23
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v727.0.0
[INFO] [stderr]     Checking tempfile v3.8.0
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking tui-input v0.8.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking ar v0.9.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]    Compiling thiserror-core-impl v1.0.38
[INFO] [stderr]     Checking ruzstd v0.4.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.185
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking object v0.32.0
[INFO] [stderr]     Checking clap v4.3.23
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking ratatui v0.23.0
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking cargo-platform v0.1.3
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking cargo_metadata v0.17.0
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking cackle v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ErrorDetails` is never constructed
[INFO] [stdout]   --> src/problem.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) struct ErrorDetails {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugAsDisplay` is never constructed
[INFO] [stdout]    --> src/checker.rs:509:12
[INFO] [stdout]     |
[INFO] [stdout] 509 |     struct DebugAsDisplay<T: Display>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ErrorDetails` is never constructed
[INFO] [stdout]   --> src/problem.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) struct ErrorDetails {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.93s
[INFO] running `Command { std: "docker" "inspect" "62170037afcb19c38de1655ebed9658c07f5863dd385e0e6a90f24f1a2889e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62170037afcb19c38de1655ebed9658c07f5863dd385e0e6a90f24f1a2889e5d", kill_on_drop: false }`
[INFO] [stdout] 62170037afcb19c38de1655ebed9658c07f5863dd385e0e6a90f24f1a2889e5d
[INFO] checking cackle-0.2.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate cackle 0.2.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate cackle 0.2.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cackle 0.2.0
[INFO] finished tweaking crates.io crate cackle 0.2.0
[INFO] tweaked toml for crates.io crate cackle 0.2.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate cackle 0.2.0 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71a60de1e33fccea9d4e7e8ca961646f169dee855716a9519027bc597773c794
[INFO] running `Command { std: "docker" "start" "-a" "71a60de1e33fccea9d4e7e8ca961646f169dee855716a9519027bc597773c794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71a60de1e33fccea9d4e7e8ca961646f169dee855716a9519027bc597773c794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71a60de1e33fccea9d4e7e8ca961646f169dee855716a9519027bc597773c794", kill_on_drop: false }`
[INFO] [stdout] 71a60de1e33fccea9d4e7e8ca961646f169dee855716a9519027bc597773c794
[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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 509016bb57dcf8ee90c0655a79ce007730aa071362eae4edbde237e6205d0bc2
[INFO] running `Command { std: "docker" "start" "-a" "509016bb57dcf8ee90c0655a79ce007730aa071362eae4edbde237e6205d0bc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling serde v1.0.185
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling thiserror-core v1.0.38
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking anstyle-parse v0.2.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking colorchoice v1.0.0
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking anstyle-query v1.0.0
[INFO] [stderr]     Checking anstyle v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling thiserror v1.0.47
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]     Checking twox-hash v1.6.3
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking winnow v0.5.14
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking clap_lex v0.5.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking flate2 v1.0.27
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking clap_builder v4.3.23
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.1
[INFO] [stderr]     Checking gimli v0.28.0
[INFO] [stderr]    Compiling indoc v2.0.3
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v727.0.0
[INFO] [stderr]     Checking tempfile v3.8.0
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking tui-input v0.8.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking ar v0.9.0
[INFO] [stderr]    Compiling thiserror-core-impl v1.0.38
[INFO] [stderr]     Checking ruzstd v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.185
[INFO] [stderr]    Compiling strum_macros v0.25.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.47
[INFO] [stderr]    Compiling clap_derive v4.3.12
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking object v0.32.0
[INFO] [stderr]     Checking strum v0.25.0
[INFO] [stderr]     Checking clap v4.3.23
[INFO] [stderr]     Checking ratatui v0.23.0
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking cargo-platform v0.1.3
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]     Checking cargo_metadata v0.17.0
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking cackle v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ErrorDetails` is never constructed
[INFO] [stdout]   --> src/problem.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) struct ErrorDetails {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugAsDisplay` is never constructed
[INFO] [stdout]    --> src/checker.rs:509:12
[INFO] [stdout]     |
[INFO] [stdout] 509 |     struct DebugAsDisplay<T: Display>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ErrorDetails` is never constructed
[INFO] [stdout]   --> src/problem.rs:49:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub(crate) struct ErrorDetails {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.15s
[INFO] running `Command { std: "docker" "inspect" "509016bb57dcf8ee90c0655a79ce007730aa071362eae4edbde237e6205d0bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "509016bb57dcf8ee90c0655a79ce007730aa071362eae4edbde237e6205d0bc2", kill_on_drop: false }`
[INFO] [stdout] 509016bb57dcf8ee90c0655a79ce007730aa071362eae4edbde237e6205d0bc2