[INFO] fetching crate rl-tokio 0.1.0...
[INFO] checking rl-tokio-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate rl-tokio 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rl-tokio 0.1.0
[INFO] finished tweaking crates.io crate rl-tokio 0.1.0
[INFO] tweaked toml for crates.io crate rl-tokio 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rl-tokio 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f5da0951798dd3252e72c4a7ed0959b2f1074dc3835b69973364fae8c012002
[INFO] running `Command { std: "docker" "start" "-a" "0f5da0951798dd3252e72c4a7ed0959b2f1074dc3835b69973364fae8c012002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f5da0951798dd3252e72c4a7ed0959b2f1074dc3835b69973364fae8c012002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5da0951798dd3252e72c4a7ed0959b2f1074dc3835b69973364fae8c012002", kill_on_drop: false }`
[INFO] [stdout] 0f5da0951798dd3252e72c4a7ed0959b2f1074dc3835b69973364fae8c012002
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2cd9d37b0bc4fed7e8c3018f6f6bfa7404891adacb916bd5eed04016ff4b3a5
[INFO] running `Command { std: "docker" "start" "-a" "b2cd9d37b0bc4fed7e8c3018f6f6bfa7404891adacb916bd5eed04016ff4b3a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking rl-core v1.17.0
[INFO] [stderr]     Checking rl-tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/tracker.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 |         &'a self,
[INFO] [stdout]    |          ^^ the lifetime is named here
[INFO] [stdout] 30 |         config: &'a crate::Config,
[INFO] [stdout]    |                  ^^ the lifetime is named here
[INFO] [stdout] 31 |         request: std::ops::RangeInclusive<u32>,
[INFO] [stdout] 32 |     ) -> crate::Acquire {
[INFO] [stdout]    |          -------------- the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 32 |     ) -> crate::Acquire<'a> {
[INFO] [stdout]    |                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/tracker.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 |         &'a self,
[INFO] [stdout]    |          ^^ the lifetime is named here
[INFO] [stdout] 30 |         config: &'a crate::Config,
[INFO] [stdout]    |                  ^^ the lifetime is named here
[INFO] [stdout] 31 |         request: std::ops::RangeInclusive<u32>,
[INFO] [stdout] 32 |     ) -> crate::Acquire {
[INFO] [stdout]    |          -------------- the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 32 |     ) -> crate::Acquire<'a> {
[INFO] [stdout]    |                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "b2cd9d37b0bc4fed7e8c3018f6f6bfa7404891adacb916bd5eed04016ff4b3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2cd9d37b0bc4fed7e8c3018f6f6bfa7404891adacb916bd5eed04016ff4b3a5", kill_on_drop: false }`
[INFO] [stdout] b2cd9d37b0bc4fed7e8c3018f6f6bfa7404891adacb916bd5eed04016ff4b3a5