[INFO] fetching crate async_t_internal 0.6.1...
[INFO] checking async_t_internal-0.6.1 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate async_t_internal 0.6.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate async_t_internal 0.6.1 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_t_internal 0.6.1
[INFO] finished tweaking crates.io crate async_t_internal 0.6.1
[INFO] tweaked toml for crates.io crate async_t_internal 0.6.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc121349fe5ac379667d4ea9b06d3eb5cc323bae64b6ee3b0aec1c41d5bcc43e
[INFO] running `Command { std: "docker" "start" "-a" "bc121349fe5ac379667d4ea9b06d3eb5cc323bae64b6ee3b0aec1c41d5bcc43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc121349fe5ac379667d4ea9b06d3eb5cc323bae64b6ee3b0aec1c41d5bcc43e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc121349fe5ac379667d4ea9b06d3eb5cc323bae64b6ee3b0aec1c41d5bcc43e", kill_on_drop: false }`
[INFO] [stdout] bc121349fe5ac379667d4ea9b06d3eb5cc323bae64b6ee3b0aec1c41d5bcc43e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 885eedd519116a401310ac2d3a58fa3223dfc4d2b6cb24fd346dee3d02d37876
[INFO] running `Command { std: "docker" "start" "-a" "885eedd519116a401310ac2d3a58fa3223dfc4d2b6cb24fd346dee3d02d37876", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v1.0.78
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking proc-macro-error v1.0.4
[INFO] [stderr]     Checking async_t_internal v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/impl_trait/impl_trait.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.types.clone().iter().for_each(|s| {
[INFO] [stdout]     |                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[&TypeParam]` does not implement `Clone`, so calling `clone` on `&[&TypeParam]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/impl_trait/implementation.rs:204:19
[INFO] [stdout]     |
[INFO] [stdout] 204 |         self.types.clone().iter().for_each(|s| {
[INFO] [stdout]     |                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[&TypeParam]` does not implement `Clone`, so calling `clone` on `&[&TypeParam]` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/impl_trait/impl_trait.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 176 |         self.types.clone().iter().for_each(|s| {
[INFO] [stdout]     |                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[&TypeParam]` does not implement `Clone`, so calling `clone` on `&[&TypeParam]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/impl_trait/implementation.rs:204:19
[INFO] [stdout]     |
[INFO] [stdout] 204 |         self.types.clone().iter().for_each(|s| {
[INFO] [stdout]     |                   ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[&TypeParam]` does not implement `Clone`, so calling `clone` on `&[&TypeParam]` copies the reference, which does not do anything and can be removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "885eedd519116a401310ac2d3a58fa3223dfc4d2b6cb24fd346dee3d02d37876", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885eedd519116a401310ac2d3a58fa3223dfc4d2b6cb24fd346dee3d02d37876", kill_on_drop: false }`
[INFO] [stdout] 885eedd519116a401310ac2d3a58fa3223dfc4d2b6cb24fd346dee3d02d37876
