[INFO] fetching crate nibbletree 0.2.0...
[INFO] checking nibbletree-0.2.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate nibbletree 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate nibbletree 0.2.0
[INFO] finished tweaking crates.io crate nibbletree 0.2.0
[INFO] tweaked toml for crates.io crate nibbletree 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nibbletree 0.2.0 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 nibbletree 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7ae2e4beb59ee33c708b0ba54b02facb1abd95e6cf44e971cc517acf81b170fb
[INFO] running `Command { std: "docker" "start" "-a" "7ae2e4beb59ee33c708b0ba54b02facb1abd95e6cf44e971cc517acf81b170fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ae2e4beb59ee33c708b0ba54b02facb1abd95e6cf44e971cc517acf81b170fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ae2e4beb59ee33c708b0ba54b02facb1abd95e6cf44e971cc517acf81b170fb", kill_on_drop: false }`
[INFO] [stdout] 7ae2e4beb59ee33c708b0ba54b02facb1abd95e6cf44e971cc517acf81b170fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 36766798fbb2f0aff8ce845e390fa69cf1f0768dca525b2279f3e68fcc188c01
[INFO] running `Command { std: "docker" "start" "-a" "36766798fbb2f0aff8ce845e390fa69cf1f0768dca525b2279f3e68fcc188c01", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling rstest_reuse v0.6.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking thin-vec v0.2.13
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]     Checking nibbletree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/node.rs:273:30
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[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] 273 -     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout] 273 +     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/node.rs:273:30
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[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] 273 -     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout] 273 +     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.69s
[INFO] running `Command { std: "docker" "inspect" "36766798fbb2f0aff8ce845e390fa69cf1f0768dca525b2279f3e68fcc188c01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36766798fbb2f0aff8ce845e390fa69cf1f0768dca525b2279f3e68fcc188c01", kill_on_drop: false }`
[INFO] [stdout] 36766798fbb2f0aff8ce845e390fa69cf1f0768dca525b2279f3e68fcc188c01