[INFO] fetching crate gap_solver 0.2.0...
[INFO] checking gap_solver-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate gap_solver 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate gap_solver 0.2.0
[INFO] finished tweaking crates.io crate gap_solver 0.2.0
[INFO] tweaked toml for crates.io crate gap_solver 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate gap_solver 0.2.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 548cdffa95617190ce7721e6435acabdf0fb562f274b6ba15fce711b9c06ea13
[INFO] running `Command { std: "docker" "start" "-a" "548cdffa95617190ce7721e6435acabdf0fb562f274b6ba15fce711b9c06ea13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "548cdffa95617190ce7721e6435acabdf0fb562f274b6ba15fce711b9c06ea13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548cdffa95617190ce7721e6435acabdf0fb562f274b6ba15fce711b9c06ea13", kill_on_drop: false }`
[INFO] [stdout] 548cdffa95617190ce7721e6435acabdf0fb562f274b6ba15fce711b9c06ea13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bc98a33cd5bf74ce7f212ee49c30f7b9e134e052be3f52eef08800b5c8470616
[INFO] running `Command { std: "docker" "start" "-a" "bc98a33cd5bf74ce7f212ee49c30f7b9e134e052be3f52eef08800b5c8470616", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking gap_solver v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/solver.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn solve<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<A, T, C, P>>
[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] 12 | pub fn solve<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<'_, A, T, C, P>>
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/solver.rs:56:36
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn init_open_set<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<A, T, C, P>>
[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] 56 | fn init_open_set<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<'_, A, T, C, P>>
[INFO] [stdout]    |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/solver.rs:12:32
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn solve<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<A, T, C, P>>
[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] 12 | pub fn solve<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<'_, A, T, C, P>>
[INFO] [stdout]    |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/solver.rs:56:36
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn init_open_set<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<A, T, C, P>>
[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] 56 | fn init_open_set<A, T, C, P>(spec: &GapSpec<A, T, C, P>) -> HashSet<Assignment<'_, A, T, C, P>>
[INFO] [stdout]    |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "bc98a33cd5bf74ce7f212ee49c30f7b9e134e052be3f52eef08800b5c8470616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc98a33cd5bf74ce7f212ee49c30f7b9e134e052be3f52eef08800b5c8470616", kill_on_drop: false }`
[INFO] [stdout] bc98a33cd5bf74ce7f212ee49c30f7b9e134e052be3f52eef08800b5c8470616