[INFO] fetching crate fem_2d 0.2.2...
[INFO] checking fem_2d-0.2.2 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate fem_2d 0.2.2 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate fem_2d 0.2.2
[INFO] finished tweaking crates.io crate fem_2d 0.2.2
[INFO] tweaked toml for crates.io crate fem_2d 0.2.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fem_2d 0.2.2 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 29 packages to latest compatible versions
[INFO] [stderr]       Adding nalgebra v0.30.1 (available: v0.33.2)
[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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 92ef2e5d67973b96358a5e6913710157e292c246420baf5a1d6403b9244d22f6
[INFO] running `Command { std: "docker" "start" "-a" "92ef2e5d67973b96358a5e6913710157e292c246420baf5a1d6403b9244d22f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92ef2e5d67973b96358a5e6913710157e292c246420baf5a1d6403b9244d22f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ef2e5d67973b96358a5e6913710157e292c246420baf5a1d6403b9244d22f6", kill_on_drop: false }`
[INFO] [stdout] 92ef2e5d67973b96358a5e6913710157e292c246420baf5a1d6403b9244d22f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fcedd7b56c3c690a0b0d25535084048c621c42c9243500e6ccd6dfbb4691f176
[INFO] running `Command { std: "docker" "start" "-a" "fcedd7b56c3c690a0b0d25535084048c621c42c9243500e6ccd6dfbb4691f176", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking simba v0.7.3
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking nalgebra v0.30.1
[INFO] [stderr]     Checking fem_2d v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/fem_domain/domain.rs:162:23
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn elems<'a>(&'a self) -> impl Iterator<Item = &'a mesh::elem::Elem> + '_ {
[INFO] [stdout]     |                       ^^                                --                     -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                 |
[INFO] [stdout]     |                       |                                 the lifetimes get resolved as `'a`
[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 consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 162 -     pub fn elems<'a>(&'a self) -> impl Iterator<Item = &'a mesh::elem::Elem> + '_ {
[INFO] [stdout] 162 +     pub fn elems<'a>(&'a self) -> impl Iterator<Item = &'a mesh::elem::Elem> + '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/fem_domain/domain.rs:167:23
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn edges<'a>(&'a self) -> impl Iterator<Item = &'a mesh::edge::Edge> + '_ {
[INFO] [stdout]     |                       ^^                                --                     -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                 |
[INFO] [stdout]     |                       |                                 the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 167 -     pub fn edges<'a>(&'a self) -> impl Iterator<Item = &'a mesh::edge::Edge> + '_ {
[INFO] [stdout] 167 +     pub fn edges<'a>(&'a self) -> impl Iterator<Item = &'a mesh::edge::Edge> + '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/fem_domain/domain.rs:172:23
[INFO] [stdout]     |
[INFO] [stdout] 172 |     pub fn nodes<'a>(&'a self) -> impl Iterator<Item = &'a mesh::node::Node> + '_ {
[INFO] [stdout]     |                       ^^                                --                     -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                 |
[INFO] [stdout]     |                       |                                 the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 172 -     pub fn nodes<'a>(&'a self) -> impl Iterator<Item = &'a mesh::node::Node> + '_ {
[INFO] [stdout] 172 +     pub fn nodes<'a>(&'a self) -> impl Iterator<Item = &'a mesh::node::Node> + '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/fem_domain/domain.rs:162:23
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn elems<'a>(&'a self) -> impl Iterator<Item = &'a mesh::elem::Elem> + '_ {
[INFO] [stdout]     |                       ^^                                --                     -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                 |
[INFO] [stdout]     |                       |                                 the lifetimes get resolved as `'a`
[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 consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 162 -     pub fn elems<'a>(&'a self) -> impl Iterator<Item = &'a mesh::elem::Elem> + '_ {
[INFO] [stdout] 162 +     pub fn elems<'a>(&'a self) -> impl Iterator<Item = &'a mesh::elem::Elem> + '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/fem_domain/domain.rs:167:23
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn edges<'a>(&'a self) -> impl Iterator<Item = &'a mesh::edge::Edge> + '_ {
[INFO] [stdout]     |                       ^^                                --                     -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                 |
[INFO] [stdout]     |                       |                                 the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 167 -     pub fn edges<'a>(&'a self) -> impl Iterator<Item = &'a mesh::edge::Edge> + '_ {
[INFO] [stdout] 167 +     pub fn edges<'a>(&'a self) -> impl Iterator<Item = &'a mesh::edge::Edge> + '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/fem_domain/domain.rs:172:23
[INFO] [stdout]     |
[INFO] [stdout] 172 |     pub fn nodes<'a>(&'a self) -> impl Iterator<Item = &'a mesh::node::Node> + '_ {
[INFO] [stdout]     |                       ^^                                --                     -- the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       |                                 |
[INFO] [stdout]     |                       |                                 the lifetimes get resolved as `'a`
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 172 -     pub fn nodes<'a>(&'a self) -> impl Iterator<Item = &'a mesh::node::Node> + '_ {
[INFO] [stdout] 172 +     pub fn nodes<'a>(&'a self) -> impl Iterator<Item = &'a mesh::node::Node> + 'a {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.14s
[INFO] running `Command { std: "docker" "inspect" "fcedd7b56c3c690a0b0d25535084048c621c42c9243500e6ccd6dfbb4691f176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcedd7b56c3c690a0b0d25535084048c621c42c9243500e6ccd6dfbb4691f176", kill_on_drop: false }`
[INFO] [stdout] fcedd7b56c3c690a0b0d25535084048c621c42c9243500e6ccd6dfbb4691f176