[INFO] fetching crate serde_deser_iter 0.1.0...
[INFO] checking serde_deser_iter-0.1.0 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate serde_deser_iter 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate serde_deser_iter 0.1.0 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_deser_iter 0.1.0
[INFO] finished tweaking crates.io crate serde_deser_iter 0.1.0
[INFO] tweaked toml for crates.io crate serde_deser_iter 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate serde_deser_iter 0.1.0 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" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b79a6b62070698fe7c110b1288ce9222d2bf47e1e24c4de3bfe2624f2675e1c
[INFO] running `Command { std: "docker" "start" "-a" "9b79a6b62070698fe7c110b1288ce9222d2bf47e1e24c4de3bfe2624f2675e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b79a6b62070698fe7c110b1288ce9222d2bf47e1e24c4de3bfe2624f2675e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b79a6b62070698fe7c110b1288ce9222d2bf47e1e24c4de3bfe2624f2675e1c", kill_on_drop: false }`
[INFO] [stdout] 9b79a6b62070698fe7c110b1288ce9222d2bf47e1e24c4de3bfe2624f2675e1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e86717e3b5f50a6e3f7624b39eaa33ea69f1693737a7ff8c43e675559e1cf44
[INFO] running `Command { std: "docker" "start" "-a" "1e86717e3b5f50a6e3f7624b39eaa33ea69f1693737a7ff8c43e675559e1cf44", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]     Checking serde_deser_iter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/deep/fold.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             ControlFlow::Break(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/deep/for_each.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             ControlFlow::Break(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/top_level.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Ok(ControlFlow::Break(_infallible)) => unreachable!(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/deep/fold.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |             ControlFlow::Break(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/deep/for_each.rs:44:13
[INFO] [stdout]    |
[INFO] [stdout] 44 |             ControlFlow::Break(_) => unreachable!(),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/top_level.rs:141:13
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Ok(ControlFlow::Break(_infallible)) => unreachable!(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.10s
[INFO] running `Command { std: "docker" "inspect" "1e86717e3b5f50a6e3f7624b39eaa33ea69f1693737a7ff8c43e675559e1cf44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e86717e3b5f50a6e3f7624b39eaa33ea69f1693737a7ff8c43e675559e1cf44", kill_on_drop: false }`
[INFO] [stdout] 1e86717e3b5f50a6e3f7624b39eaa33ea69f1693737a7ff8c43e675559e1cf44