[INFO] fetching crate tappers 0.4.2...
[INFO] checking tappers-0.4.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate tappers 0.4.2 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate tappers 0.4.2
[INFO] finished tweaking crates.io crate tappers 0.4.2
[INFO] tweaked toml for crates.io crate tappers 0.4.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tappers 0.4.2 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 103 packages to latest compatible versions
[INFO] [stderr]       Adding mio v0.8.11 (available: v1.0.4)
[INFO] [stderr]       Adding windows-sys v0.59.0 (available: v0.60.2)
[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] 57704c1fe0212b8869e219e6ed4bca70e36975c9f79e7156560e2051eea7ec52
[INFO] running `Command { std: "docker" "start" "-a" "57704c1fe0212b8869e219e6ed4bca70e36975c9f79e7156560e2051eea7ec52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57704c1fe0212b8869e219e6ed4bca70e36975c9f79e7156560e2051eea7ec52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57704c1fe0212b8869e219e6ed4bca70e36975c9f79e7156560e2051eea7ec52", kill_on_drop: false }`
[INFO] [stdout] 57704c1fe0212b8869e219e6ed4bca70e36975c9f79e7156560e2051eea7ec52
[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] cbd221a87769c065249531e1ba3039b43ca1b1c5f529c913038b8af58f7bcc17
[INFO] running `Command { std: "docker" "start" "-a" "cbd221a87769c065249531e1ba3039b43ca1b1c5f529c913038b8af58f7bcc17", kill_on_drop: false }`
[INFO] [stderr]    Compiling windows_x86_64_gnu v0.52.6
[INFO] [stderr]     Checking windows-targets v0.52.6
[INFO] [stderr]     Checking windows-sys v0.59.0
[INFO] [stderr]     Checking tappers v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux.rs:108:14
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn as_fd(&self) -> BorrowedFd {
[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] 108 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux.rs:190:14
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn as_fd(&self) -> BorrowedFd {
[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] 190 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux/tap.rs:425:14
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn as_fd(&self) -> BorrowedFd {
[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] 425 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux/tun.rs:413:14
[INFO] [stdout]     |
[INFO] [stdout] 413 |     fn as_fd(&self) -> BorrowedFd {
[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] 413 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/rtnetlink.rs:802:18
[INFO] [stdout]     |
[INFO] [stdout] 802 |     pub fn attrs(&self) -> AddressAttrIter {
[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] 802 |     pub fn attrs(&self) -> AddressAttrIter<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/tap.rs:146:14
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn as_fd(&self) -> BorrowedFd {
[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] 146 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/tun.rs:192:14
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn as_fd(&self) -> BorrowedFd {
[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] 192 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux.rs:108:14
[INFO] [stdout]     |
[INFO] [stdout] 108 |     fn as_fd(&self) -> BorrowedFd {
[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] 108 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux.rs:190:14
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn as_fd(&self) -> BorrowedFd {
[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] 190 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux/tap.rs:425:14
[INFO] [stdout]     |
[INFO] [stdout] 425 |     fn as_fd(&self) -> BorrowedFd {
[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] 425 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux/tun.rs:413:14
[INFO] [stdout]     |
[INFO] [stdout] 413 |     fn as_fd(&self) -> BorrowedFd {
[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] 413 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/rtnetlink.rs:802:18
[INFO] [stdout]     |
[INFO] [stdout] 802 |     pub fn attrs(&self) -> AddressAttrIter {
[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] 802 |     pub fn attrs(&self) -> AddressAttrIter<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/tap.rs:146:14
[INFO] [stdout]     |
[INFO] [stdout] 146 |     fn as_fd(&self) -> BorrowedFd {
[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] 146 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/tun.rs:192:14
[INFO] [stdout]     |
[INFO] [stdout] 192 |     fn as_fd(&self) -> BorrowedFd {
[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] 192 |     fn as_fd(&self) -> BorrowedFd<'_> {
[INFO] [stdout]     |                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "cbd221a87769c065249531e1ba3039b43ca1b1c5f529c913038b8af58f7bcc17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbd221a87769c065249531e1ba3039b43ca1b1c5f529c913038b8af58f7bcc17", kill_on_drop: false }`
[INFO] [stdout] cbd221a87769c065249531e1ba3039b43ca1b1c5f529c913038b8af58f7bcc17