[INFO] cloning repository https://github.com/FauxFaux/rust-tone
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FauxFaux/rust-tone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Frust-tone", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Frust-tone'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3fe0de95843a4d193e8df15e24c3122c89eb3736
[INFO] testing FauxFaux/rust-tone against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Frust-tone" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FauxFaux/rust-tone on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FauxFaux/rust-tone
[INFO] finished tweaking git repo https://github.com/FauxFaux/rust-tone
[INFO] tweaked toml for git repo https://github.com/FauxFaux/rust-tone written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/FauxFaux/rust-tone already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded enum-map v0.2.35
[INFO] [stderr]   Downloaded bit-vec v0.4.4
[INFO] [stderr]   Downloaded proc-macro2 v0.4.6
[INFO] [stderr]   Downloaded num-iter v0.1.37
[INFO] [stderr]   Downloaded rand v0.4.2
[INFO] [stderr]   Downloaded libpulse-simple-sys v1.1.0
[INFO] [stderr]   Downloaded cc v1.0.17
[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] [stderr]   Downloaded xi-unicode v0.1.0
[INFO] [stderr]   Downloaded chan v0.1.21
[INFO] [stderr]   Downloaded enumset v0.3.10
[INFO] [stderr]   Downloaded bit-set v0.4.0
[INFO] [stderr]   Downloaded syn v0.14.2
[INFO] [stderr]   Downloaded libpulse-simple-binding v1.2.0
[INFO] [stderr]   Downloaded unicode-segmentation v1.2.1
[INFO] [stderr]   Downloaded num-bigint v0.1.44
[INFO] [stderr]   Downloaded array-macro v1.0.2
[INFO] [stderr]   Downloaded reexport-proc-macro v1.0.4
[INFO] [stderr]   Downloaded lazy_static v0.2.11
[INFO] [stderr]   Downloaded rand v0.3.22
[INFO] [stderr]   Downloaded log v0.4.2
[INFO] [stderr]   Downloaded serde v1.0.66
[INFO] [stderr]   Downloaded cfg-if v0.1.3
[INFO] [stderr]   Downloaded quote v0.6.3
[INFO] [stderr]   Downloaded enum-map-derive v0.2.10
[INFO] [stderr]   Downloaded num-integer v0.1.38
[INFO] [stderr]   Downloaded num-traits v0.2.4
[INFO] [stderr]   Downloaded stable_deref_trait v1.0.0
[INFO] [stderr]   Downloaded libpulse-binding v1.2.0
[INFO] [stderr]   Downloaded chan-signal v0.3.1
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded rustc-demangle v0.1.8
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded cursive v0.8.2
[INFO] [stderr]   Downloaded libpulse-sys v1.1.0
[INFO] [stderr]   Downloaded backtrace v0.3.8
[INFO] [stderr]   Downloaded toml v0.4.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a11913de4554e45a1df6d8ea33927e44c55ceba9e66a1a6e46ec0d4081f7653
[INFO] running `Command { std: "docker" "start" "-a" "6a11913de4554e45a1df6d8ea33927e44c55ceba9e66a1a6e46ec0d4081f7653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a11913de4554e45a1df6d8ea33927e44c55ceba9e66a1a6e46ec0d4081f7653", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a11913de4554e45a1df6d8ea33927e44c55ceba9e66a1a6e46ec0d4081f7653", kill_on_drop: false }`
[INFO] [stdout] 6a11913de4554e45a1df6d8ea33927e44c55ceba9e66a1a6e46ec0d4081f7653
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63a05064592528246ee1cfc65d9be8f5d8ce12808b7fbc3c84ffd652edf0eb83
[INFO] running `Command { std: "docker" "start" "-a" "63a05064592528246ee1cfc65d9be8f5d8ce12808b7fbc3c84ffd652edf0eb83", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling libpulse-sys v1.1.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling libpulse-simple-sys v1.1.0
[INFO] [stderr]    Compiling reexport-proc-macro v1.0.4
[INFO] [stderr]    Compiling array-macro v1.0.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling xi-unicode v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling enumset v0.3.10
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling chan v0.1.21
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling chan-signal v0.3.1
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling libpulse-binding v1.2.0
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling libpulse-simple-binding v1.2.0
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling enum-map-derive v0.2.10
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling enum-map v0.2.35
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling cursive v0.8.2
[INFO] [stderr]    Compiling rust-tone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Simple` is imported redundantly
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | use psimple::Simple;
[INFO] [stdout]    |     --------------- the item `Simple` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 24 |     use psimple::Simple;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.38s
[INFO] running `Command { std: "docker" "inspect" "63a05064592528246ee1cfc65d9be8f5d8ce12808b7fbc3c84ffd652edf0eb83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63a05064592528246ee1cfc65d9be8f5d8ce12808b7fbc3c84ffd652edf0eb83", kill_on_drop: false }`
[INFO] [stdout] 63a05064592528246ee1cfc65d9be8f5d8ce12808b7fbc3c84ffd652edf0eb83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2930a9e2b05e519a862a3c014024ae13cec990cccd1e8a0f721c0732c25b5744
[INFO] running `Command { std: "docker" "start" "-a" "2930a9e2b05e519a862a3c014024ae13cec990cccd1e8a0f721c0732c25b5744", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-tone v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Simple` is imported redundantly
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | use psimple::Simple;
[INFO] [stdout]    |     --------------- the item `Simple` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 24 |     use psimple::Simple;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2930a9e2b05e519a862a3c014024ae13cec990cccd1e8a0f721c0732c25b5744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2930a9e2b05e519a862a3c014024ae13cec990cccd1e8a0f721c0732c25b5744", kill_on_drop: false }`
[INFO] [stdout] 2930a9e2b05e519a862a3c014024ae13cec990cccd1e8a0f721c0732c25b5744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] becd493992dbf54cb198df2fc3a52d7feb6e535ef2eddfc7b677d642e59f63cb
[INFO] running `Command { std: "docker" "start" "-a" "becd493992dbf54cb198df2fc3a52d7feb6e535ef2eddfc7b677d642e59f63cb", kill_on_drop: false }`
[INFO] [stderr] warning: the item `Simple` is imported redundantly
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 19 | use psimple::Simple;
[INFO] [stderr]    |     --------------- the item `Simple` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 24 |     use psimple::Simple;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_tone-7717f914e0fed9cb)
[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" "becd493992dbf54cb198df2fc3a52d7feb6e535ef2eddfc7b677d642e59f63cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "becd493992dbf54cb198df2fc3a52d7feb6e535ef2eddfc7b677d642e59f63cb", kill_on_drop: false }`
[INFO] [stdout] becd493992dbf54cb198df2fc3a52d7feb6e535ef2eddfc7b677d642e59f63cb