[INFO] fetching crate getargs 0.5.0...
[INFO] checking getargs-0.5.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate getargs 0.5.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate getargs 0.5.0
[INFO] finished tweaking crates.io crate getargs 0.5.0
[INFO] tweaked toml for crates.io crate getargs 0.5.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate getargs 0.5.0 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] crate crates.io crate getargs 0.5.0 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 argv v0.1.5
[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] 678e37526e04652eb67f7346fd946819eb0dda0a90dda5f057841b6aee344d09
[INFO] running `Command { std: "docker" "start" "-a" "678e37526e04652eb67f7346fd946819eb0dda0a90dda5f057841b6aee344d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "678e37526e04652eb67f7346fd946819eb0dda0a90dda5f057841b6aee344d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "678e37526e04652eb67f7346fd946819eb0dda0a90dda5f057841b6aee344d09", kill_on_drop: false }`
[INFO] [stdout] 678e37526e04652eb67f7346fd946819eb0dda0a90dda5f057841b6aee344d09
[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] f5b2d7f28d630c7e4b1429886d3aaf12c274a112296274c4c8cb7ebd6950208d
[INFO] running `Command { std: "docker" "start" "-a" "f5b2d7f28d630c7e4b1429886d3aaf12c274a112296274c4c8cb7ebd6950208d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling argv v0.1.5
[INFO] [stderr]     Checking getargs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:770:24
[INFO] [stdout]     |
[INFO] [stdout] 770 |     pub fn positionals(&mut self) -> Positionals<A, I> {
[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] 770 |     pub fn positionals(&mut self) -> Positionals<'_, A, I> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/lib.rs:770:24
[INFO] [stdout]     |
[INFO] [stdout] 770 |     pub fn positionals(&mut self) -> Positionals<A, I> {
[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] 770 |     pub fn positionals(&mut self) -> Positionals<'_, A, I> {
[INFO] [stdout]     |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.02s
[INFO] running `Command { std: "docker" "inspect" "f5b2d7f28d630c7e4b1429886d3aaf12c274a112296274c4c8cb7ebd6950208d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5b2d7f28d630c7e4b1429886d3aaf12c274a112296274c4c8cb7ebd6950208d", kill_on_drop: false }`
[INFO] [stdout] f5b2d7f28d630c7e4b1429886d3aaf12c274a112296274c4c8cb7ebd6950208d