[INFO] fetching crate plain_trie 8.0.2...
[INFO] checking plain_trie-8.0.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate plain_trie 8.0.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate plain_trie 8.0.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate plain_trie 8.0.2
[INFO] tweaked toml for crates.io crate plain_trie 8.0.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate plain_trie 8.0.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate plain_trie 8.0.2 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fd961403eb1bdcb472cd4a266ab46b862b61eed46ae6c946fec5e9483e98d24
[INFO] running `Command { std: "docker" "start" "-a" "8fd961403eb1bdcb472cd4a266ab46b862b61eed46ae6c946fec5e9483e98d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fd961403eb1bdcb472cd4a266ab46b862b61eed46ae6c946fec5e9483e98d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd961403eb1bdcb472cd4a266ab46b862b61eed46ae6c946fec5e9483e98d24", kill_on_drop: false }`
[INFO] [stdout] 8fd961403eb1bdcb472cd4a266ab46b862b61eed46ae6c946fec5e9483e98d24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41867a70e9815020cbbcc975bce50de14a4e1a7601d754340c2954444c66f599
[INFO] running `Command { std: "docker" "start" "-a" "41867a70e9815020cbbcc975bce50de14a4e1a7601d754340c2954444c66f599", kill_on_drop: false }`
[INFO] [stderr]    Compiling plain_trie v8.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:342:16
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn ins(&mut self, mut key: impl Iterator<Item = char>, entry: T) -> InsRes<T> {
[INFO] [stdout]     |                ^^^^^^^^^ this lifetime flows to the output                  --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn ins(&mut self, mut key: impl Iterator<Item = char>, entry: T) -> InsRes<'_, T> {
[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:373:16
[INFO] [stdout]     |
[INFO] [stdout] 373 |     pub fn acq(&self, key: impl Iterator<Item = char>) -> AcqRes<T> {
[INFO] [stdout]     |                ^^^^^ this lifetime flows to the output    --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 373 |     pub fn acq(&self, key: impl Iterator<Item = char>) -> AcqRes<'_, T> {
[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:384:20
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn acq_mut(&mut self, key: impl Iterator<Item = char>) -> AcqMutRes<T> {
[INFO] [stdout]     |                    ^^^^^^^^^ this lifetime flows to the output    ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn acq_mut(&mut self, key: impl Iterator<Item = char>) -> AcqMutRes<'_, T> {
[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:342:16
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn ins(&mut self, mut key: impl Iterator<Item = char>, entry: T) -> InsRes<T> {
[INFO] [stdout]     |                ^^^^^^^^^ this lifetime flows to the output                  --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 342 |     pub fn ins(&mut self, mut key: impl Iterator<Item = char>, entry: T) -> InsRes<'_, T> {
[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:373:16
[INFO] [stdout]     |
[INFO] [stdout] 373 |     pub fn acq(&self, key: impl Iterator<Item = char>) -> AcqRes<T> {
[INFO] [stdout]     |                ^^^^^ this lifetime flows to the output    --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 373 |     pub fn acq(&self, key: impl Iterator<Item = char>) -> AcqRes<'_, T> {
[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:384:20
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn acq_mut(&mut self, key: impl Iterator<Item = char>) -> AcqMutRes<T> {
[INFO] [stdout]     |                    ^^^^^^^^^ this lifetime flows to the output    ------------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn acq_mut(&mut self, key: impl Iterator<Item = char>) -> AcqMutRes<'_, T> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "41867a70e9815020cbbcc975bce50de14a4e1a7601d754340c2954444c66f599", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41867a70e9815020cbbcc975bce50de14a4e1a7601d754340c2954444c66f599", kill_on_drop: false }`
[INFO] [stdout] 41867a70e9815020cbbcc975bce50de14a4e1a7601d754340c2954444c66f599