[INFO] fetching crate kobold 0.9.1...
[INFO] checking kobold-0.9.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate kobold 0.9.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate kobold 0.9.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kobold 0.9.1
[INFO] finished tweaking crates.io crate kobold 0.9.1
[INFO] tweaked toml for crates.io crate kobold 0.9.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kobold_macros v0.9.0
[INFO] [stderr]   Downloaded const-default v1.0.0
[INFO] [stderr]   Downloaded rlsf v0.2.1
[INFO] [stderr]   Downloaded svgbobdoc v0.3.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb4b24bb9019e5a35be9feb24c57c27c8e0109422c10d795e8364c95ceef0200
[INFO] running `Command { std: "docker" "start" "-a" "eb4b24bb9019e5a35be9feb24c57c27c8e0109422c10d795e8364c95ceef0200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb4b24bb9019e5a35be9feb24c57c27c8e0109422c10d795e8364c95ceef0200", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4b24bb9019e5a35be9feb24c57c27c8e0109422c10d795e8364c95ceef0200", kill_on_drop: false }`
[INFO] [stdout] eb4b24bb9019e5a35be9feb24c57c27c8e0109422c10d795e8364c95ceef0200
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cefe3075701975ddc80bdc8e3ac95856e6e0949808b8dd5bee8ac65eb79bc33
[INFO] running `Command { std: "docker" "start" "-a" "9cefe3075701975ddc80bdc8e3ac95856e6e0949808b8dd5bee8ac65eb79bc33", kill_on_drop: false }`
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.93
[INFO] [stderr]    Compiling kobold_macros v0.9.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.93
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.93
[INFO] [stderr]     Checking wasm-bindgen v0.2.93
[INFO] [stderr]     Checking js-sys v0.3.70
[INFO] [stderr]     Checking console_error_panic_hook v0.1.7
[INFO] [stderr]     Checking web-sys v0.3.70
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.43
[INFO] [stderr]     Checking kobold v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/value.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn update(self, mut p: &mut Self::Product) {
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/value.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn update(self, mut p: &mut Self::Product) {
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/stateful/hook.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |         drop([mock, mock]);
[INFO] [stdout]     |         ^^^^^------------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `[hook::Bound<'_, i32, {closure@src/stateful/hook.rs:280:23: 280:59}>; 2]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_copy_types)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 286 -         drop([mock, mock]);
[INFO] [stdout] 286 +         let _ = [mock, mock];
[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 15.26s
[INFO] running `Command { std: "docker" "inspect" "9cefe3075701975ddc80bdc8e3ac95856e6e0949808b8dd5bee8ac65eb79bc33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cefe3075701975ddc80bdc8e3ac95856e6e0949808b8dd5bee8ac65eb79bc33", kill_on_drop: false }`
[INFO] [stdout] 9cefe3075701975ddc80bdc8e3ac95856e6e0949808b8dd5bee8ac65eb79bc33