[INFO] fetching crate hackflight 0.1.7...
[INFO] testing hackflight-0.1.7 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate hackflight 0.1.7 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate hackflight 0.1.7
[INFO] finished tweaking crates.io crate hackflight 0.1.7
[INFO] tweaked toml for crates.io crate hackflight 0.1.7 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hackflight 0.1.7 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate hackflight 0.1.7 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c404a3253f8915d65168ed8871184827e38cfc97c54a7e30610615742a753be
[INFO] running `Command { std: "docker" "start" "-a" "3c404a3253f8915d65168ed8871184827e38cfc97c54a7e30610615742a753be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c404a3253f8915d65168ed8871184827e38cfc97c54a7e30610615742a753be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c404a3253f8915d65168ed8871184827e38cfc97c54a7e30610615742a753be", kill_on_drop: false }`
[INFO] [stdout] 3c404a3253f8915d65168ed8871184827e38cfc97c54a7e30610615742a753be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82238800d85efa4565ebfb1278efe9bc62f1241e67e43191b98191a449a5563c
[INFO] running `Command { std: "docker" "start" "-a" "82238800d85efa4565ebfb1278efe9bc62f1241e67e43191b98191a449a5563c", kill_on_drop: false }`
[INFO] [stderr]    Compiling hackflight v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `filter` is assigned to, but never used
[INFO] [stdout]   --> src/filters.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn adjust_pt1_gain(mut filter: Pt1, f_cut: f32)
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_filter` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `filter` is never read
[INFO] [stdout]   --> src/filters.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     filter.k = compute_pt1_gain(f_cut);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "82238800d85efa4565ebfb1278efe9bc62f1241e67e43191b98191a449a5563c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82238800d85efa4565ebfb1278efe9bc62f1241e67e43191b98191a449a5563c", kill_on_drop: false }`
[INFO] [stdout] 82238800d85efa4565ebfb1278efe9bc62f1241e67e43191b98191a449a5563c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54b8b29adfd9d8d745e2c350d1bc250ef9e0d42e374c5372aae8f08404bbc125
[INFO] running `Command { std: "docker" "start" "-a" "54b8b29adfd9d8d745e2c350d1bc250ef9e0d42e374c5372aae8f08404bbc125", kill_on_drop: false }`
[INFO] [stdout] warning: variable `filter` is assigned to, but never used
[INFO] [stdout]   --> src/filters.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn adjust_pt1_gain(mut filter: Pt1, f_cut: f32)
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_filter` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hackflight v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `filter` is never read
[INFO] [stdout]   --> src/filters.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     filter.k = compute_pt1_gain(f_cut);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `filter` is assigned to, but never used
[INFO] [stdout]   --> src/filters.rs:36:24
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub fn adjust_pt1_gain(mut filter: Pt1, f_cut: f32)
[INFO] [stdout]    |                        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_filter` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `filter` is never read
[INFO] [stdout]   --> src/filters.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     filter.k = compute_pt1_gain(f_cut);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "54b8b29adfd9d8d745e2c350d1bc250ef9e0d42e374c5372aae8f08404bbc125", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54b8b29adfd9d8d745e2c350d1bc250ef9e0d42e374c5372aae8f08404bbc125", kill_on_drop: false }`
[INFO] [stdout] 54b8b29adfd9d8d745e2c350d1bc250ef9e0d42e374c5372aae8f08404bbc125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8afa3f21d03e49b54ca549d814e97beac175a67819ca24a40c9de2713529afe4
[INFO] running `Command { std: "docker" "start" "-a" "8afa3f21d03e49b54ca549d814e97beac175a67819ca24a40c9de2713529afe4", kill_on_drop: false }`
[INFO] [stderr] warning: variable `filter` is assigned to, but never used
[INFO] [stderr]   --> src/filters.rs:36:24
[INFO] [stderr]    |
[INFO] [stderr] 36 | pub fn adjust_pt1_gain(mut filter: Pt1, f_cut: f32)
[INFO] [stderr]    |                        ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_filter` instead
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `filter` is never read
[INFO] [stderr]   --> src/filters.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     filter.k = compute_pt1_gain(f_cut);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hackflight` (lib) generated 2 warnings
[INFO] [stderr] warning: `hackflight` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hackflight-1bf86916dae08db1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hackflight
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8afa3f21d03e49b54ca549d814e97beac175a67819ca24a40c9de2713529afe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8afa3f21d03e49b54ca549d814e97beac175a67819ca24a40c9de2713529afe4", kill_on_drop: false }`
[INFO] [stdout] 8afa3f21d03e49b54ca549d814e97beac175a67819ca24a40c9de2713529afe4