[INFO] fetching crate io-test 0.11.0...
[INFO] checking io-test-0.11.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate io-test 0.11.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate io-test 0.11.0
[INFO] finished tweaking crates.io crate io-test 0.11.0
[INFO] tweaked toml for crates.io crate io-test 0.11.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-test 0.11.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 35 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded io-trait v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50b0dd9e5c97cebaf1246d393f80eb85ab53b8e1ba496262904fdcac46313d50
[INFO] running `Command { std: "docker" "start" "-a" "50b0dd9e5c97cebaf1246d393f80eb85ab53b8e1ba496262904fdcac46313d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50b0dd9e5c97cebaf1246d393f80eb85ab53b8e1ba496262904fdcac46313d50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50b0dd9e5c97cebaf1246d393f80eb85ab53b8e1ba496262904fdcac46313d50", kill_on_drop: false }`
[INFO] [stdout] 50b0dd9e5c97cebaf1246d393f80eb85ab53b8e1ba496262904fdcac46313d50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be5fb1b824de17f55541d2a98a259c638d0c76cbea4850533b26cdf6208e23be
[INFO] running `Command { std: "docker" "start" "-a" "be5fb1b824de17f55541d2a98a259c638d0c76cbea4850533b26cdf6208e23be", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.100
[INFO] [stderr]    Compiling bumpalo v3.19.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.100
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking io-trait v0.11.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking io-test v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.50
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]     Checking js-sys v0.3.77
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.50
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.50
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lib.rs:522:39
[INFO] [stdout]     |
[INFO] [stdout] 522 |     fn check_len(m: &super::Metadata, f: fn(m: &super::Metadata) -> u64, len: u64) {
[INFO] [stdout]     |                                       ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.18s
[INFO] running `Command { std: "docker" "inspect" "be5fb1b824de17f55541d2a98a259c638d0c76cbea4850533b26cdf6208e23be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5fb1b824de17f55541d2a98a259c638d0c76cbea4850533b26cdf6208e23be", kill_on_drop: false }`
[INFO] [stdout] be5fb1b824de17f55541d2a98a259c638d0c76cbea4850533b26cdf6208e23be