[INFO] fetching crate samply 0.13.1...
[INFO] checking samply-0.13.1 against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193
[INFO] extracting crate samply 0.13.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate samply 0.13.1
[INFO] finished tweaking crates.io crate samply 0.13.1
[INFO] tweaked toml for crates.io crate samply 0.13.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate samply 0.13.1 on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate samply 0.13.1 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" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa29a228033e93f9c2d20261db99a70dd114906f11c62bc3e2d3f4e56d94e853
[INFO] running `Command { std: "docker" "start" "-a" "fa29a228033e93f9c2d20261db99a70dd114906f11c62bc3e2d3f4e56d94e853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa29a228033e93f9c2d20261db99a70dd114906f11c62bc3e2d3f4e56d94e853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa29a228033e93f9c2d20261db99a70dd114906f11c62bc3e2d3f4e56d94e853", kill_on_drop: false }`
[INFO] [stdout] fa29a228033e93f9c2d20261db99a70dd114906f11c62bc3e2d3f4e56d94e853
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb7a503e7c3010618db3d8fd965de1726dc873a329717bd1cec8a4b9fb6d6571
[INFO] running `Command { std: "docker" "start" "-a" "bb7a503e7c3010618db3d8fd965de1726dc873a329717bd1cec8a4b9fb6d6571", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `UserTimingMarker` is never constructed
[INFO] [stdout]    --> src/shared/process_sample_data.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 | pub struct UserTimingMarker(pub StringHandle);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux/perf_event.rs:460:17
[INFO] [stdout]     |
[INFO] [stdout] 460 |     pub fn iter(&mut self) -> EventIter {
[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] 460 |     pub fn iter(&mut self) -> EventIter<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UserTimingMarker` is never constructed
[INFO] [stdout]    --> src/shared/process_sample_data.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 | pub struct UserTimingMarker(pub StringHandle);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/linux/perf_event.rs:460:17
[INFO] [stdout]     |
[INFO] [stdout] 460 |     pub fn iter(&mut self) -> EventIter {
[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] 460 |     pub fn iter(&mut self) -> EventIter<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "bb7a503e7c3010618db3d8fd965de1726dc873a329717bd1cec8a4b9fb6d6571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb7a503e7c3010618db3d8fd965de1726dc873a329717bd1cec8a4b9fb6d6571", kill_on_drop: false }`
[INFO] [stdout] bb7a503e7c3010618db3d8fd965de1726dc873a329717bd1cec8a4b9fb6d6571