[INFO] fetching crate jasondb 0.2.7...
[INFO] checking jasondb-0.2.7 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate jasondb 0.2.7 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate jasondb 0.2.7
[INFO] finished tweaking crates.io crate jasondb 0.2.7
[INFO] tweaked toml for crates.io crate jasondb 0.2.7 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate jasondb 0.2.7 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 585435718e169f5173c1c4c57a4e5f1f7b09633ff33f08e3aa14eae0a1a5e591
[INFO] running `Command { std: "docker" "start" "-a" "585435718e169f5173c1c4c57a4e5f1f7b09633ff33f08e3aa14eae0a1a5e591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "585435718e169f5173c1c4c57a4e5f1f7b09633ff33f08e3aa14eae0a1a5e591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "585435718e169f5173c1c4c57a4e5f1f7b09633ff33f08e3aa14eae0a1a5e591", kill_on_drop: false }`
[INFO] [stdout] 585435718e169f5173c1c4c57a4e5f1f7b09633ff33f08e3aa14eae0a1a5e591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0d0349a8eeeab52eedbf3ca5e82f6b677057b5baeb18a8e028f0de03dbec85a5
[INFO] running `Command { std: "docker" "start" "-a" "0d0349a8eeeab52eedbf3ca5e82f6b677057b5baeb18a8e028f0de03dbec85a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling humphrey_json_derive v0.1.1
[INFO] [stderr]     Checking humphrey_json v0.2.2
[INFO] [stderr]     Checking jasondb v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/database.rs:384:18
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn query(&mut self, query: Query) -> Result<Iter<T, S>, JasonError> {
[INFO] [stdout]     |                  ^^^^^^^^^                          ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  this lifetime flows to the output
[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] 384 |     pub fn query(&mut self, query: Query) -> Result<Iter<'_, T, S>, JasonError> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/database.rs:393:17
[INFO] [stdout]     |
[INFO] [stdout] 393 |     pub fn iter(&mut self) -> Iter<T, S> {
[INFO] [stdout]     |                 ^^^^^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[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] 393 |     pub fn iter(&mut self) -> Iter<'_, T, S> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/database.rs:407:27
[INFO] [stdout]     |
[INFO] [stdout] 407 |     pub fn iter_unordered(&mut self) -> Iter<T, S> {
[INFO] [stdout]     |                           ^^^^^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[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] 407 |     pub fn iter_unordered(&mut self) -> Iter<'_, T, S> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/database.rs:384:18
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn query(&mut self, query: Query) -> Result<Iter<T, S>, JasonError> {
[INFO] [stdout]     |                  ^^^^^^^^^                          ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  this lifetime flows to the output
[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] 384 |     pub fn query(&mut self, query: Query) -> Result<Iter<'_, T, S>, JasonError> {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/database.rs:393:17
[INFO] [stdout]     |
[INFO] [stdout] 393 |     pub fn iter(&mut self) -> Iter<T, S> {
[INFO] [stdout]     |                 ^^^^^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 this lifetime flows to the output
[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] 393 |     pub fn iter(&mut self) -> Iter<'_, T, S> {
[INFO] [stdout]     |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/database.rs:407:27
[INFO] [stdout]     |
[INFO] [stdout] 407 |     pub fn iter_unordered(&mut self) -> Iter<T, S> {
[INFO] [stdout]     |                           ^^^^^^^^^     ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[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] 407 |     pub fn iter_unordered(&mut self) -> Iter<'_, T, S> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "0d0349a8eeeab52eedbf3ca5e82f6b677057b5baeb18a8e028f0de03dbec85a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d0349a8eeeab52eedbf3ca5e82f6b677057b5baeb18a8e028f0de03dbec85a5", kill_on_drop: false }`
[INFO] [stdout] 0d0349a8eeeab52eedbf3ca5e82f6b677057b5baeb18a8e028f0de03dbec85a5