[INFO] fetching crate subnet-garden-core 0.3.0...
[INFO] checking subnet-garden-core-0.3.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate subnet-garden-core 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate subnet-garden-core 0.3.0
[INFO] finished tweaking crates.io crate subnet-garden-core 0.3.0
[INFO] tweaked toml for crates.io crate subnet-garden-core 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate subnet-garden-core 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 215 packages to latest compatible versions
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[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.14.0)
[INFO] [stderr]       Adding unicode-width v0.1.11 (available: v0.1.14)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cidr-utils v0.6.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1b369ad835216dc372480e944ba544d1d1c34bcbc2b1c88ba5f17c246f11a7d8
[INFO] running `Command { std: "docker" "start" "-a" "1b369ad835216dc372480e944ba544d1d1c34bcbc2b1c88ba5f17c246f11a7d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b369ad835216dc372480e944ba544d1d1c34bcbc2b1c88ba5f17c246f11a7d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b369ad835216dc372480e944ba544d1d1c34bcbc2b1c88ba5f17c246f11a7d8", kill_on_drop: false }`
[INFO] [stdout] 1b369ad835216dc372480e944ba544d1d1c34bcbc2b1c88ba5f17c246f11a7d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 92bab77da87a82fb126f746f3ff6eeef6e59c76a5d804acb79be7b47c0415aa1
[INFO] running `Command { std: "docker" "start" "-a" "92bab77da87a82fb126f746f3ff6eeef6e59c76a5d804acb79be7b47c0415aa1", kill_on_drop: false }`
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[INFO] [stderr]     Checking subnet-garden-core v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/pool.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |         &'a self,
[INFO] [stdout]    |          ^^ these lifetimes flow to the output
[INFO] [stdout] 30 |         subspace: &'a Subspace,
[INFO] [stdout]    |                    ^^ these lifetimes flow to the output
[INFO] [stdout] 31 |     ) -> impl Iterator<Item = &Subspace> {
[INFO] [stdout]    |                               --------- 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] 31 |     ) -> impl Iterator<Item = &'a Subspace> {
[INFO] [stdout]    |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/pool.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |         &'a self,
[INFO] [stdout]    |          ^^ these lifetimes flow to the output
[INFO] [stdout] 30 |         subspace: &'a Subspace,
[INFO] [stdout]    |                    ^^ these lifetimes flow to the output
[INFO] [stdout] 31 |     ) -> impl Iterator<Item = &Subspace> {
[INFO] [stdout]    |                               --------- 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] 31 |     ) -> impl Iterator<Item = &'a Subspace> {
[INFO] [stdout]    |                                ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.30s
[INFO] running `Command { std: "docker" "inspect" "92bab77da87a82fb126f746f3ff6eeef6e59c76a5d804acb79be7b47c0415aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92bab77da87a82fb126f746f3ff6eeef6e59c76a5d804acb79be7b47c0415aa1", kill_on_drop: false }`
[INFO] [stdout] 92bab77da87a82fb126f746f3ff6eeef6e59c76a5d804acb79be7b47c0415aa1