[INFO] fetching crate diplomat_core 0.12.1...
[INFO] checking diplomat_core-0.12.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate diplomat_core 0.12.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate diplomat_core 0.12.1
[INFO] finished tweaking crates.io crate diplomat_core 0.12.1
[INFO] tweaked toml for crates.io crate diplomat_core 0.12.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate diplomat_core 0.12.1 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] crate crates.io crate diplomat_core 0.12.1 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strck v1.0.0
[INFO] [stderr]   Downloaded similar v2.4.0
[INFO] [stderr]   Downloaded insta v1.36.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 26bb0e8af5a53e77cf6a6c9ad42474376387b887930b37fa37cf074bed72e12f
[INFO] running `Command { std: "docker" "start" "-a" "26bb0e8af5a53e77cf6a6c9ad42474376387b887930b37fa37cf074bed72e12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26bb0e8af5a53e77cf6a6c9ad42474376387b887930b37fa37cf074bed72e12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26bb0e8af5a53e77cf6a6c9ad42474376387b887930b37fa37cf074bed72e12f", kill_on_drop: false }`
[INFO] [stdout] 26bb0e8af5a53e77cf6a6c9ad42474376387b887930b37fa37cf074bed72e12f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3a06aa9e059cc46ac13291cb09746d40da173184a1dbcc432796b483589a012b
[INFO] running `Command { std: "docker" "start" "-a" "3a06aa9e059cc46ac13291cb09746d40da173184a1dbcc432796b483589a012b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking similar v2.4.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking strck v1.0.0
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking syn v2.0.99
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking insta v1.36.1
[INFO] [stderr]     Checking diplomat_core v0.12.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/ast/methods.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrowed_params(&self) -> BorrowedParams {
[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] 127 |     pub fn borrowed_params(&self) -> BorrowedParams<'_> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/ast/methods.rs:127:28
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn borrowed_params(&self) -> BorrowedParams {
[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] 127 |     pub fn borrowed_params(&self) -> BorrowedParams<'_> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.20s
[INFO] running `Command { std: "docker" "inspect" "3a06aa9e059cc46ac13291cb09746d40da173184a1dbcc432796b483589a012b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a06aa9e059cc46ac13291cb09746d40da173184a1dbcc432796b483589a012b", kill_on_drop: false }`
[INFO] [stdout] 3a06aa9e059cc46ac13291cb09746d40da173184a1dbcc432796b483589a012b