[INFO] fetching crate twang 0.9.0...
[INFO] testing twang-0.9.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate twang 0.9.0 into /workspace/builds/worker-3-tc1/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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twang 0.9.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pointy v0.3.0
[INFO] [stderr]   Downloaded fon v0.6.0
[INFO] [stderr]   Downloaded footile v0.7.0
[INFO] [stderr]   Downloaded splotch v0.0.1
[INFO] [stderr]   Downloaded libm v0.2.5
[INFO] [stderr]   Downloaded pix v0.13.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bb368e2a6d1d4ad264ae24ffe7387e602269dca735dedb523cdec4307db1fad
[INFO] running `Command { std: "docker" "start" "-a" "4bb368e2a6d1d4ad264ae24ffe7387e602269dca735dedb523cdec4307db1fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb368e2a6d1d4ad264ae24ffe7387e602269dca735dedb523cdec4307db1fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb368e2a6d1d4ad264ae24ffe7387e602269dca735dedb523cdec4307db1fad", kill_on_drop: false }`
[INFO] [stdout] 4bb368e2a6d1d4ad264ae24ffe7387e602269dca735dedb523cdec4307db1fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa9cf4435fee2678b491b5b5597a0cfe7158c7b1137d0d48816cd5b55a366a2b
[INFO] running `Command { std: "docker" "start" "-a" "fa9cf4435fee2678b491b5b5597a0cfe7158c7b1137d0d48816cd5b55a366a2b", 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 1.67s
[INFO] running `Command { std: "docker" "inspect" "fa9cf4435fee2678b491b5b5597a0cfe7158c7b1137d0d48816cd5b55a366a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9cf4435fee2678b491b5b5597a0cfe7158c7b1137d0d48816cd5b55a366a2b", kill_on_drop: false }`
[INFO] [stdout] fa9cf4435fee2678b491b5b5597a0cfe7158c7b1137d0d48816cd5b55a366a2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5727d6f348297865e3fd6384a4e93aac8f1a4ecb9339104cb0b9e080ede12259
[INFO] running `Command { std: "docker" "start" "-a" "5727d6f348297865e3fd6384a4e93aac8f1a4ecb9339104cb0b9e080ede12259", 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 3.28s
[INFO] running `Command { std: "docker" "inspect" "5727d6f348297865e3fd6384a4e93aac8f1a4ecb9339104cb0b9e080ede12259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5727d6f348297865e3fd6384a4e93aac8f1a4ecb9339104cb0b9e080ede12259", kill_on_drop: false }`
[INFO] [stdout] 5727d6f348297865e3fd6384a4e93aac8f1a4ecb9339104cb0b9e080ede12259
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38aa0e599cde0b9f18737ddaf9a42b897ec26497a985d8813d154ec9e41e3fff
[INFO] running `Command { std: "docker" "start" "-a" "38aa0e599cde0b9f18737ddaf9a42b897ec26497a985d8813d154ec9e41e3fff", 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] [stderr] 11 | use crate::math::Libm;
[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 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/twang-9a7ee70af01fd8da)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test math::tests::math_exp ... ok
[INFO] [stdout] test math::tests::math_signum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twang
[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 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "38aa0e599cde0b9f18737ddaf9a42b897ec26497a985d8813d154ec9e41e3fff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38aa0e599cde0b9f18737ddaf9a42b897ec26497a985d8813d154ec9e41e3fff", kill_on_drop: false }`
[INFO] [stdout] 38aa0e599cde0b9f18737ddaf9a42b897ec26497a985d8813d154ec9e41e3fff