[INFO] fetching crate toucan-rs 1.0.0...
[INFO] checking toucan-rs-1.0.0 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate toucan-rs 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate toucan-rs 1.0.0
[INFO] finished tweaking crates.io crate toucan-rs 1.0.0
[INFO] tweaked toml for crates.io crate toucan-rs 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate toucan-rs 1.0.0 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "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" "+bbe853615821442ef11d6cd42a30a73432b38d89" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 81 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.18)
[INFO] [stderr]       Adding worker v0.3.4 (available: v0.7.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-wasm-bindgen v0.5.0
[INFO] [stderr]   Downloaded serde-wasm-bindgen v0.6.5
[INFO] [stderr]   Downloaded worker-kv v0.7.0
[INFO] [stderr]   Downloaded worker-macros v0.3.4
[INFO] [stderr]   Downloaded worker-sys v0.3.4
[INFO] [stderr]   Downloaded worker v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1051c7022d6669b64f7dfa271da131f5a1b1ebd6867d5ca9ccb8e09afedcf25
[INFO] running `Command { std: "docker" "start" "-a" "c1051c7022d6669b64f7dfa271da131f5a1b1ebd6867d5ca9ccb8e09afedcf25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1051c7022d6669b64f7dfa271da131f5a1b1ebd6867d5ca9ccb8e09afedcf25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1051c7022d6669b64f7dfa271da131f5a1b1ebd6867d5ca9ccb8e09afedcf25", kill_on_drop: false }`
[INFO] [stdout] c1051c7022d6669b64f7dfa271da131f5a1b1ebd6867d5ca9ccb8e09afedcf25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c244c8dd7ff45b0beb647fa0820930e1aa297566451ede015301655e53c4bf
[INFO] running `Command { std: "docker" "start" "-a" "18c244c8dd7ff45b0beb647fa0820930e1aa297566451ede015301655e53c4bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.114
[INFO] [stderr]    Compiling bumpalo v3.20.2
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]    Compiling wasm-bindgen v0.2.114
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking http v1.4.0
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.1.11
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking matchit v0.7.3
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.114
[INFO] [stderr]     Checking http-body v1.0.1
[INFO] [stderr]     Checking pin-project v1.1.11
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.114
[INFO] [stderr]    Compiling js-sys v0.3.91
[INFO] [stderr]     Checking web-sys v0.3.91
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.64
[INFO] [stderr]     Checking serde-wasm-bindgen v0.5.0
[INFO] [stderr]     Checking serde-wasm-bindgen v0.6.5
[INFO] [stderr]     Checking worker-kv v0.7.0
[INFO] [stderr]    Compiling worker-sys v0.3.4
[INFO] [stderr]    Compiling worker-macros v0.3.4
[INFO] [stderr]     Checking wasm-streams v0.4.2
[INFO] [stderr]     Checking worker v0.3.4
[INFO] [stderr]     Checking toucan-rs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `backtrace` is never read
[INFO] [stdout]   --> src/error.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct ToucanError {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     pub msg: String,
[INFO] [stdout] 11 |     backtrace: Option<std::backtrace::Backtrace>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ToucanError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `backtrace` is never read
[INFO] [stdout]   --> src/error.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct ToucanError {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 10 |     pub msg: String,
[INFO] [stdout] 11 |     backtrace: Option<std::backtrace::Backtrace>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ToucanError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.87s
[INFO] running `Command { std: "docker" "inspect" "18c244c8dd7ff45b0beb647fa0820930e1aa297566451ede015301655e53c4bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c244c8dd7ff45b0beb647fa0820930e1aa297566451ede015301655e53c4bf", kill_on_drop: false }`
[INFO] [stdout] 18c244c8dd7ff45b0beb647fa0820930e1aa297566451ede015301655e53c4bf