[INFO] fetching crate twang 0.9.0...
[INFO] testing twang-0.9.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate twang 0.9.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate twang 0.9.0
[INFO] finished tweaking crates.io crate twang 0.9.0
[INFO] tweaked toml for crates.io crate twang 0.9.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate twang 0.9.0 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 twang 0.9.0 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f72793719baffaed4a1fb2b48537603ec4c3be37ca66870042ef65d6d03ae27d
[INFO] running `Command { std: "docker" "start" "-a" "f72793719baffaed4a1fb2b48537603ec4c3be37ca66870042ef65d6d03ae27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f72793719baffaed4a1fb2b48537603ec4c3be37ca66870042ef65d6d03ae27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72793719baffaed4a1fb2b48537603ec4c3be37ca66870042ef65d6d03ae27d", kill_on_drop: false }`
[INFO] [stdout] f72793719baffaed4a1fb2b48537603ec4c3be37ca66870042ef65d6d03ae27d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2358523f1e1c11f8ac1e60736f5ae13f134d541cbcd105b8d888241dd7293149
[INFO] running `Command { std: "docker" "start" "-a" "2358523f1e1c11f8ac1e60736f5ae13f134d541cbcd105b8d888241dd7293149", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling twang v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling fon v0.6.0
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/osc/triangle.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[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: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/clip.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/far.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/gain.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/near.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/osc/pulse.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `abs`, `copysign`, and `signum` are never used
[INFO] [stdout]   --> src/math.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) trait Libm: Rem<Output = Self> + Sized {
[INFO] [stdout]    |                  ---- methods in this trait
[INFO] [stdout] 15 |     fn cos(self) -> Self;
[INFO] [stdout] 16 |     fn abs(self) -> Self;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 17 |     fn copysign(self, other: Self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 18 |     fn signum(self) -> Self;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "2358523f1e1c11f8ac1e60736f5ae13f134d541cbcd105b8d888241dd7293149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2358523f1e1c11f8ac1e60736f5ae13f134d541cbcd105b8d888241dd7293149", kill_on_drop: false }`
[INFO] [stdout] 2358523f1e1c11f8ac1e60736f5ae13f134d541cbcd105b8d888241dd7293149
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6910536ff76bada64fd1ed3a1d495666ef05b3810752a49e776ca5e5f6cc704
[INFO] running `Command { std: "docker" "start" "-a" "c6910536ff76bada64fd1ed3a1d495666ef05b3810752a49e776ca5e5f6cc704", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling pix v0.13.2
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/osc/triangle.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[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: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/clip.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/far.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/gain.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/ops/near.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::math::Libm`
[INFO] [stdout]   --> src/osc/pulse.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::math::Libm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `abs`, `copysign`, and `signum` are never used
[INFO] [stdout]   --> src/math.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) trait Libm: Rem<Output = Self> + Sized {
[INFO] [stdout]    |                  ---- methods in this trait
[INFO] [stdout] 15 |     fn cos(self) -> Self;
[INFO] [stdout] 16 |     fn abs(self) -> Self;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 17 |     fn copysign(self, other: Self) -> Self;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 18 |     fn signum(self) -> Self;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pointy v0.3.0
[INFO] [stderr]    Compiling footile v0.7.0
[INFO] [stderr]    Compiling splotch v0.0.1
[INFO] [stderr]    Compiling twang v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Libm` is never used
[INFO] [stdout]   --> src/math.rs:14:18
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) trait Libm: Rem<Output = Self> + Sized {
[INFO] [stdout]    |                  ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "c6910536ff76bada64fd1ed3a1d495666ef05b3810752a49e776ca5e5f6cc704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6910536ff76bada64fd1ed3a1d495666ef05b3810752a49e776ca5e5f6cc704", kill_on_drop: false }`
[INFO] [stdout] c6910536ff76bada64fd1ed3a1d495666ef05b3810752a49e776ca5e5f6cc704
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0bbb3df2bec82382d8225ea90b876aecc6009b12a72ccb53988fc85b06fb9620
[INFO] running `Command { std: "docker" "start" "-a" "0bbb3df2bec82382d8225ea90b876aecc6009b12a72ccb53988fc85b06fb9620", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::math::Libm`
[INFO] [stderr]   --> src/osc/triangle.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::math::Libm;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::math::Libm`
[INFO] [stderr]   --> src/ops/clip.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::math::Libm;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::math::Libm`
[INFO] [stderr]   --> src/ops/far.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::math::Libm;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::math::Libm`
[INFO] [stderr]   --> src/ops/gain.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::math::Libm;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::math::Libm`
[INFO] [stderr]   --> src/ops/near.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use crate::math::Libm;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::math::Libm`
[INFO] [stderr]   --> src/osc/pulse.rs:11:5
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 11 | use crate::math::Libm;
[INFO] [stdout] running 2 tests
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `abs`, `copysign`, and `signum` are never used
[INFO] [stderr]   --> src/math.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) trait Libm: Rem<Output = Self> + Sized {
[INFO] [stderr]    |                  ---- methods in this trait
[INFO] [stderr] 15 |     fn cos(self) -> Self;
[INFO] [stderr] 16 |     fn abs(self) -> Self;
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 17 |     fn copysign(self, other: Self) -> Self;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 18 |     fn signum(self) -> Self;
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Libm` is never used
[INFO] [stderr]   --> src/math.rs:14:18
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub(crate) trait Libm: Rem<Output = Self> + Sized {
[INFO] [stderr]    |                  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `twang` (lib) generated 7 warnings
[INFO] [stderr] warning: `twang` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twang-55c601f4751bb293)
[INFO] [stdout] test math::tests::math_exp ... ok
[INFO] [stdout] test math::tests::math_signum ... ok
[INFO] [stderr]    Doc-tests twang
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 31) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0bbb3df2bec82382d8225ea90b876aecc6009b12a72ccb53988fc85b06fb9620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bbb3df2bec82382d8225ea90b876aecc6009b12a72ccb53988fc85b06fb9620", kill_on_drop: false }`
[INFO] [stdout] 0bbb3df2bec82382d8225ea90b876aecc6009b12a72ccb53988fc85b06fb9620