[INFO] fetching crate rust_ob 2.5.3...
[INFO] checking rust_ob-2.5.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rust_ob 2.5.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rust_ob 2.5.3
[INFO] finished tweaking crates.io crate rust_ob 2.5.3
[INFO] tweaked toml for crates.io crate rust_ob 2.5.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_ob 2.5.3 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 66 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 26685deef0c89417e1ac411243974820233aa344de0dd4bdb9da03457c430c3a
[INFO] running `Command { std: "docker" "start" "-a" "26685deef0c89417e1ac411243974820233aa344de0dd4bdb9da03457c430c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26685deef0c89417e1ac411243974820233aa344de0dd4bdb9da03457c430c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26685deef0c89417e1ac411243974820233aa344de0dd4bdb9da03457c430c3a", kill_on_drop: false }`
[INFO] [stdout] 26685deef0c89417e1ac411243974820233aa344de0dd4bdb9da03457c430c3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2be4dc793db12d6914011be64a213317768882f3cd749bc9fed1c4f60b77d166
[INFO] running `Command { std: "docker" "start" "-a" "2be4dc793db12d6914011be64a213317768882f3cd749bc9fed1c4f60b77d166", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rust_decimal v1.37.2
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rust_ob v2.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bookside.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 |         &'a self,
[INFO] [stdout]    |          ^^ this lifetime flows to the output
[INFO] [stdout] 58 |     ) -> Box<dyn DoubleEndedIterator<Item = &Rc<RefCell<Order<OrderID>>>> + 'a> {
[INFO] [stdout]    |                                             ----------------------------    -- the lifetimes get resolved as `'a`
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             the lifetimes get 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] 58 |     ) -> Box<dyn DoubleEndedIterator<Item = &'a Rc<RefCell<Order<OrderID>>>> + 'a> {
[INFO] [stdout]    |                                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bookside.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 |         &'a self,
[INFO] [stdout]    |          ^^ this lifetime flows to the output
[INFO] [stdout] 58 |     ) -> Box<dyn DoubleEndedIterator<Item = &Rc<RefCell<Order<OrderID>>>> + 'a> {
[INFO] [stdout]    |                                             ----------------------------    -- the lifetimes get resolved as `'a`
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             the lifetimes get 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] 58 |     ) -> Box<dyn DoubleEndedIterator<Item = &'a Rc<RefCell<Order<OrderID>>>> + 'a> {
[INFO] [stdout]    |                                              ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.21s
[INFO] running `Command { std: "docker" "inspect" "2be4dc793db12d6914011be64a213317768882f3cd749bc9fed1c4f60b77d166", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be4dc793db12d6914011be64a213317768882f3cd749bc9fed1c4f60b77d166", kill_on_drop: false }`
[INFO] [stdout] 2be4dc793db12d6914011be64a213317768882f3cd749bc9fed1c4f60b77d166