[INFO] fetching crate kak-tabs 0.2.1-beta...
[INFO] checking kak-tabs-0.2.1-beta against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate kak-tabs 0.2.1-beta into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate kak-tabs 0.2.1-beta on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kak-tabs 0.2.1-beta
[INFO] finished tweaking crates.io crate kak-tabs 0.2.1-beta
[INFO] tweaked toml for crates.io crate kak-tabs 0.2.1-beta written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate kak-tabs 0.2.1-beta 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d306f833272defadd2d5293c3e113deaf344b9699b35d5ac214ae29dbe53469
[INFO] running `Command { std: "docker" "start" "-a" "0d306f833272defadd2d5293c3e113deaf344b9699b35d5ac214ae29dbe53469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d306f833272defadd2d5293c3e113deaf344b9699b35d5ac214ae29dbe53469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d306f833272defadd2d5293c3e113deaf344b9699b35d5ac214ae29dbe53469", kill_on_drop: false }`
[INFO] [stdout] 0d306f833272defadd2d5293c3e113deaf344b9699b35d5ac214ae29dbe53469
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7c546163f0cfec079380400da6a5da0a5da8c323210971f2b09aadb7c1a8b71
[INFO] running `Command { std: "docker" "start" "-a" "f7c546163f0cfec079380400da6a5da0a5da8c323210971f2b09aadb7c1a8b71", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking anstyle-query v1.1.0
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling serde_json v1.0.118
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]    Compiling syn v2.0.67
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking clap_builder v4.5.7
[INFO] [stderr]    Compiling clap_derive v4.5.5
[INFO] [stderr]    Compiling extend v1.2.0
[INFO] [stderr]    Compiling derive_more v0.99.18
[INFO] [stderr]     Checking clap v4.5.7
[INFO] [stderr]     Checking kak-tabs v0.2.1-beta (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `session` is never read
[INFO] [stdout]  --> src/kakoune.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Kakoune {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 5 |   pub session: String,
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Kakoune` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `session` is never read
[INFO] [stdout]  --> src/kakoune.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Kakoune {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 5 |   pub session: String,
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Kakoune` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "f7c546163f0cfec079380400da6a5da0a5da8c323210971f2b09aadb7c1a8b71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7c546163f0cfec079380400da6a5da0a5da8c323210971f2b09aadb7c1a8b71", kill_on_drop: false }`
[INFO] [stdout] f7c546163f0cfec079380400da6a5da0a5da8c323210971f2b09aadb7c1a8b71