[INFO] fetching crate nibbletree 0.2.0...
[INFO] building nibbletree-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate nibbletree 0.2.0 into /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nibbletree 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] efc69fff33d19e83f7ed48596c12f250513401ec6644d63faae144e5851f1b5d
[INFO] running `Command { std: "docker" "start" "-a" "efc69fff33d19e83f7ed48596c12f250513401ec6644d63faae144e5851f1b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "efc69fff33d19e83f7ed48596c12f250513401ec6644d63faae144e5851f1b5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efc69fff33d19e83f7ed48596c12f250513401ec6644d63faae144e5851f1b5d", kill_on_drop: false }`
[INFO] [stdout] efc69fff33d19e83f7ed48596c12f250513401ec6644d63faae144e5851f1b5d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18fd4bccb28b6462f77e3d7e8fbdea11b134ef5cdcf0d752a044a4b64751cad6
[INFO] running `Command { std: "docker" "start" "-a" "18fd4bccb28b6462f77e3d7e8fbdea11b134ef5cdcf0d752a044a4b64751cad6", kill_on_drop: false }`
[INFO] [stderr]    Compiling thin-vec v0.2.13
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling nibbletree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/node.rs:273:97
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout]     |                              -- the lifetime is named here                                      ^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: 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 3.91s
[INFO] running `Command { std: "docker" "inspect" "18fd4bccb28b6462f77e3d7e8fbdea11b134ef5cdcf0d752a044a4b64751cad6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18fd4bccb28b6462f77e3d7e8fbdea11b134ef5cdcf0d752a044a4b64751cad6", kill_on_drop: false }`
[INFO] [stdout] 18fd4bccb28b6462f77e3d7e8fbdea11b134ef5cdcf0d752a044a4b64751cad6
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cc08e05689005a248b2b94897afc4e196b5f5ef1d5e3881a593343e1bf4eb36
[INFO] running `Command { std: "docker" "start" "-a" "5cc08e05689005a248b2b94897afc4e196b5f5ef1d5e3881a593343e1bf4eb36", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/node.rs:273:97
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout]     |                              -- the lifetime is named here                                      ^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: 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 aho-corasick v1.1.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling getrandom v0.2.12
[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 rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling rstest v0.18.2
[INFO] [stderr]    Compiling nibbletree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/node.rs:273:97
[INFO] [stdout]     |
[INFO] [stdout] 273 |     fn keys_with_prefix<'a>(&'a self, prefix: Key) -> impl Iterator<Item = Key> + Send + Sync + '_ {
[INFO] [stdout]     |                              -- the lifetime is named here                                      ^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: 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 `test` profile [unoptimized + debuginfo] target(s) in 10.04s
[INFO] running `Command { std: "docker" "inspect" "5cc08e05689005a248b2b94897afc4e196b5f5ef1d5e3881a593343e1bf4eb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cc08e05689005a248b2b94897afc4e196b5f5ef1d5e3881a593343e1bf4eb36", kill_on_drop: false }`
[INFO] [stdout] 5cc08e05689005a248b2b94897afc4e196b5f5ef1d5e3881a593343e1bf4eb36