[INFO] fetching crate cow_vec_item 0.5.1...
[INFO] checking cow_vec_item-0.5.1 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate cow_vec_item 0.5.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cow_vec_item 0.5.1 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cow_vec_item 0.5.1
[INFO] finished tweaking crates.io crate cow_vec_item 0.5.1
[INFO] tweaked toml for crates.io crate cow_vec_item 0.5.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bae2d45e35dc03bbe22d46d3958405995bea019b485cc4676b203b0e047d0ff6
[INFO] running `Command { std: "docker" "start" "-a" "bae2d45e35dc03bbe22d46d3958405995bea019b485cc4676b203b0e047d0ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bae2d45e35dc03bbe22d46d3958405995bea019b485cc4676b203b0e047d0ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae2d45e35dc03bbe22d46d3958405995bea019b485cc4676b203b0e047d0ff6", kill_on_drop: false }`
[INFO] [stdout] bae2d45e35dc03bbe22d46d3958405995bea019b485cc4676b203b0e047d0ff6
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0abc213c68a9d8999d75cff0392163a9566c09ca02ba901274d81f1e776e8a48
[INFO] running `Command { std: "docker" "start" "-a" "0abc213c68a9d8999d75cff0392163a9566c09ca02ba901274d81f1e776e8a48", kill_on_drop: false }`
[INFO] [stderr]     Checking cow_vec_item v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:473:86
[INFO] [stdout]     |
[INFO] [stdout] 473 |     pub fn eager_cloned_iter_mut<'cowvec>(&'cowvec mut self) -> impl Iterator<Item = &mut T>
[INFO] [stdout]     |                                  ------- lifetime `'cowvec` declared here            ^ this elided lifetime gets resolved as `'cowvec`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(elided_named_lifetimes)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: elided lifetime has a name
[INFO] [stdout]    --> src/lib.rs:473:86
[INFO] [stdout]     |
[INFO] [stdout] 473 |     pub fn eager_cloned_iter_mut<'cowvec>(&'cowvec mut self) -> impl Iterator<Item = &mut T>
[INFO] [stdout]     |                                  ------- lifetime `'cowvec` declared here            ^ this elided lifetime gets resolved as `'cowvec`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:9
[INFO] [stdout]     |
[INFO] [stdout] 2   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(elided_named_lifetimes)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut theref = unsafe { &mut *self.cowvec };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cow_vec_item` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:511:13
[INFO] [stdout]     |
[INFO] [stdout] 511 |         let mut theref = unsafe { &mut *self.cowvec };
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cow_vec_item` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "0abc213c68a9d8999d75cff0392163a9566c09ca02ba901274d81f1e776e8a48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0abc213c68a9d8999d75cff0392163a9566c09ca02ba901274d81f1e776e8a48", kill_on_drop: false }`
[INFO] [stdout] 0abc213c68a9d8999d75cff0392163a9566c09ca02ba901274d81f1e776e8a48