[INFO] fetching crate state-tracker 0.1.0...
[INFO] building state-tracker-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate state-tracker 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate state-tracker 0.1.0
[INFO] finished tweaking crates.io crate state-tracker 0.1.0
[INFO] tweaked toml for crates.io crate state-tracker 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate state-tracker 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 79 packages to latest compatible versions
[INFO] [stderr]       Adding simple_logger v4.3.3 (available: v5.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple_logger v4.3.3
[INFO] [stderr]   Downloaded colored v2.2.0
[INFO] [stderr]   Downloaded num_threads v0.1.7
[INFO] [stderr]   Downloaded time-core v0.1.6
[INFO] [stderr]   Downloaded deranged v0.5.4
[INFO] [stderr]   Downloaded signal-hook-registry v1.4.6
[INFO] [stderr]   Downloaded time-macros v0.2.24
[INFO] [stderr]   Downloaded time v0.3.44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18810c3a2954eca0f13d81b61010b9462e9c1a8046ada5bde3d1c5ee1842ac7e
[INFO] running `Command { std: "docker" "start" "-a" "18810c3a2954eca0f13d81b61010b9462e9c1a8046ada5bde3d1c5ee1842ac7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18810c3a2954eca0f13d81b61010b9462e9c1a8046ada5bde3d1c5ee1842ac7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18810c3a2954eca0f13d81b61010b9462e9c1a8046ada5bde3d1c5ee1842ac7e", kill_on_drop: false }`
[INFO] [stdout] 18810c3a2954eca0f13d81b61010b9462e9c1a8046ada5bde3d1c5ee1842ac7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97c7bdd1b9d5f627e9799bf32995cf3812afb60a6622a9c197321086108de374
[INFO] running `Command { std: "docker" "start" "-a" "97c7bdd1b9d5f627e9799bf32995cf3812afb60a6622a9c197321086108de374", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling mio v1.0.4
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling state-tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Duration` and `SystemTime`
[INFO] [stdout]   --> src/state_tracker.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]   --> src/state_tracker.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::timeout`
[INFO] [stdout]   --> src/state_tracker.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | use tokio::time::timeout;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 34.62s
[INFO] running `Command { std: "docker" "inspect" "97c7bdd1b9d5f627e9799bf32995cf3812afb60a6622a9c197321086108de374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c7bdd1b9d5f627e9799bf32995cf3812afb60a6622a9c197321086108de374", kill_on_drop: false }`
[INFO] [stdout] 97c7bdd1b9d5f627e9799bf32995cf3812afb60a6622a9c197321086108de374
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02174d8a5cf2f773817e130077de883d4a1bf93aefdc8b1ebbd2cd8a98ad99a7
[INFO] running `Command { std: "docker" "start" "-a" "02174d8a5cf2f773817e130077de883d4a1bf93aefdc8b1ebbd2cd8a98ad99a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling num_threads v0.1.7
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling deranged v0.5.4
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling state-tracker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Duration` and `SystemTime`
[INFO] [stdout]   --> src/state_tracker.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]   --> src/state_tracker.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::time::timeout`
[INFO] [stdout]   --> src/state_tracker.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 | use tokio::time::timeout;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling simple_logger v4.3.3
[INFO] [stdout] warning: unused import: `tokio::io::AsyncWriteExt`
[INFO] [stdout]   --> src/state_tracker.rs:78:5
[INFO] [stdout]    |
[INFO] [stdout] 78 | use tokio::io::AsyncWriteExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]    --> src/state_tracker_client.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |         Err(error) => panic!("should have received a state"),
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/state_tracker.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 |     tokio::fs::remove_file(SENDER_PATH).await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 87 |     let _ = tokio::fs::remove_file(SENDER_PATH).await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/state_tracker.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     tokio::fs::remove_file(RECEIVER_PATH).await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |     let _ = tokio::fs::remove_file(RECEIVER_PATH).await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.30s
[INFO] running `Command { std: "docker" "inspect" "02174d8a5cf2f773817e130077de883d4a1bf93aefdc8b1ebbd2cd8a98ad99a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02174d8a5cf2f773817e130077de883d4a1bf93aefdc8b1ebbd2cd8a98ad99a7", kill_on_drop: false }`
[INFO] [stdout] 02174d8a5cf2f773817e130077de883d4a1bf93aefdc8b1ebbd2cd8a98ad99a7