[INFO] fetching crate flange-flat-tree 0.2.2...
[INFO] checking flange-flat-tree-0.2.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate flange-flat-tree 0.2.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate flange-flat-tree 0.2.2
[INFO] finished tweaking crates.io crate flange-flat-tree 0.2.2
[INFO] tweaked toml for crates.io crate flange-flat-tree 0.2.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flange-flat-tree 0.2.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41e0b459be4ec2cb43545eb6d026e88fa8ffaaed180dba390e321b5779d49211
[INFO] running `Command { std: "docker" "start" "-a" "41e0b459be4ec2cb43545eb6d026e88fa8ffaaed180dba390e321b5779d49211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41e0b459be4ec2cb43545eb6d026e88fa8ffaaed180dba390e321b5779d49211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e0b459be4ec2cb43545eb6d026e88fa8ffaaed180dba390e321b5779d49211", kill_on_drop: false }`
[INFO] [stdout] 41e0b459be4ec2cb43545eb6d026e88fa8ffaaed180dba390e321b5779d49211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f2672c2fee44f5c2b58767833f23cf9c92dfe82f6ce95fc140492e510e70acf
[INFO] running `Command { std: "docker" "start" "-a" "7f2672c2fee44f5c2b58767833f23cf9c92dfe82f6ce95fc140492e510e70acf", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking anstyle-query v1.1.3
[INFO] [stderr]     Checking colorchoice v1.0.4
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking toml_write v0.1.2
[INFO] [stderr]     Checking winnow v0.7.11
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]    Compiling clap_derive v4.5.40
[INFO] [stderr]     Checking flange-flat-tree v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking anstream v0.6.19
[INFO] [stderr]     Checking clap_builder v4.5.40
[INFO] [stderr]     Checking clap v4.5.40
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking cargo-readme v3.3.1
[INFO] [stdout] warning: function `print_subtree` is never used
[INFO] [stdout]   --> src/tests/subtree.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn print_subtree<ST>(st: ST)
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.50s
[INFO] running `Command { std: "docker" "inspect" "7f2672c2fee44f5c2b58767833f23cf9c92dfe82f6ce95fc140492e510e70acf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f2672c2fee44f5c2b58767833f23cf9c92dfe82f6ce95fc140492e510e70acf", kill_on_drop: false }`
[INFO] [stdout] 7f2672c2fee44f5c2b58767833f23cf9c92dfe82f6ce95fc140492e510e70acf