[INFO] fetching crate fast_input 0.2.0...
[INFO] checking fast_input-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate fast_input 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate fast_input 0.2.0
[INFO] finished tweaking crates.io crate fast_input 0.2.0
[INFO] tweaked toml for crates.io crate fast_input 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fast_input 0.2.0 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] crate crates.io crate fast_input 0.2.0 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 3532b837c63b007b4a7c8779abde7edd2e5e76e866d28e6c4a9b1cb7fc6a453a
[INFO] running `Command { std: "docker" "start" "-a" "3532b837c63b007b4a7c8779abde7edd2e5e76e866d28e6c4a9b1cb7fc6a453a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3532b837c63b007b4a7c8779abde7edd2e5e76e866d28e6c4a9b1cb7fc6a453a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3532b837c63b007b4a7c8779abde7edd2e5e76e866d28e6c4a9b1cb7fc6a453a", kill_on_drop: false }`
[INFO] [stdout] 3532b837c63b007b4a7c8779abde7edd2e5e76e866d28e6c4a9b1cb7fc6a453a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 549147c5d683a72ab0d128d7cdf10ffb4b09b9d043439f3fbd8be9cd1effe934
[INFO] running `Command { std: "docker" "start" "-a" "549147c5d683a72ab0d128d7cdf10ffb4b09b9d043439f3fbd8be9cd1effe934", kill_on_drop: false }`
[INFO] [stderr]     Checking fast_input v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:184:45
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn next_as_iter<'a, T: FParse<'a>>(&'a self) -> impl Iterator<Item = T> + '_ {
[INFO] [stdout]     |                                             ^^ this lifetime flows to the output  -- the lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 184 -     pub fn next_as_iter<'a, T: FParse<'a>>(&'a self) -> impl Iterator<Item = T> + '_ {
[INFO] [stdout] 184 +     pub fn next_as_iter<'a, T: FParse<'a>>(&'a self) -> impl Iterator<Item = T> + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:204:28
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn next_split<'a>(&'a self) -> impl Iterator<Item = &'a str> + '_ {
[INFO] [stdout]     |                            ^^                                --        -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                            |                                 |
[INFO] [stdout]     |                            |                                 the lifetimes get resolved as `'a`
[INFO] [stdout]     |                            this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 204 -     pub fn next_split<'a>(&'a self) -> impl Iterator<Item = &'a str> + '_ {
[INFO] [stdout] 204 +     pub fn next_split<'a>(&'a self) -> impl Iterator<Item = &'a str> + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:259:23
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn lines<'a>(&'a self) -> impl Iterator<Item = &str> + 'a {
[INFO] [stdout]     |                       ^^                               ----    -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                |
[INFO] [stdout]     |                       |                                the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn lines<'a>(&'a self) -> impl Iterator<Item = &'a str> + 'a {
[INFO] [stdout]     |                                                         ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:184:45
[INFO] [stdout]     |
[INFO] [stdout] 184 |     pub fn next_as_iter<'a, T: FParse<'a>>(&'a self) -> impl Iterator<Item = T> + '_ {
[INFO] [stdout]     |                                             ^^ this lifetime flows to the output  -- the lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 184 -     pub fn next_as_iter<'a, T: FParse<'a>>(&'a self) -> impl Iterator<Item = T> + '_ {
[INFO] [stdout] 184 +     pub fn next_as_iter<'a, T: FParse<'a>>(&'a self) -> impl Iterator<Item = T> + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:204:28
[INFO] [stdout]     |
[INFO] [stdout] 204 |     pub fn next_split<'a>(&'a self) -> impl Iterator<Item = &'a str> + '_ {
[INFO] [stdout]     |                            ^^                                --        -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                            |                                 |
[INFO] [stdout]     |                            |                                 the lifetimes get resolved as `'a`
[INFO] [stdout]     |                            this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 204 -     pub fn next_split<'a>(&'a self) -> impl Iterator<Item = &'a str> + '_ {
[INFO] [stdout] 204 +     pub fn next_split<'a>(&'a self) -> impl Iterator<Item = &'a str> + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:259:23
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn lines<'a>(&'a self) -> impl Iterator<Item = &str> + 'a {
[INFO] [stdout]     |                       ^^                               ----    -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                |
[INFO] [stdout]     |                       |                                the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 259 |     pub fn lines<'a>(&'a self) -> impl Iterator<Item = &'a str> + 'a {
[INFO] [stdout]     |                                                         ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "549147c5d683a72ab0d128d7cdf10ffb4b09b9d043439f3fbd8be9cd1effe934", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "549147c5d683a72ab0d128d7cdf10ffb4b09b9d043439f3fbd8be9cd1effe934", kill_on_drop: false }`
[INFO] [stdout] 549147c5d683a72ab0d128d7cdf10ffb4b09b9d043439f3fbd8be9cd1effe934