[INFO] cloning repository https://github.com/Spunge/forex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Spunge/forex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpunge%2Fforex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpunge%2Fforex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a4951edad7d506422b66ce80c032422d38e6c27
[INFO] building Spunge/forex against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSpunge%2Fforex" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Spunge/forex on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Spunge/forex
[INFO] finished tweaking git repo https://github.com/Spunge/forex
[INFO] tweaked toml for git repo https://github.com/Spunge/forex written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Spunge/forex 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/spunge/rust-jack.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.59
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.59
[INFO] [stderr]   Downloaded gilrs-core v0.2.5
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.59
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.59
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.59
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a228800d9491c1c3528d829241d913a86cd40dfbd3c095350a6952b6cb06623
[INFO] running `Command { std: "docker" "start" "-a" "9a228800d9491c1c3528d829241d913a86cd40dfbd3c095350a6952b6cb06623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a228800d9491c1c3528d829241d913a86cd40dfbd3c095350a6952b6cb06623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a228800d9491c1c3528d829241d913a86cd40dfbd3c095350a6952b6cb06623", kill_on_drop: false }`
[INFO] [stdout] 9a228800d9491c1c3528d829241d913a86cd40dfbd3c095350a6952b6cb06623
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a38d95b8d342f4a05145655c9a1c21de4b30b5b8e6cacac7fbaf4cb88cf300a
[INFO] running `Command { std: "docker" "start" "-a" "8a38d95b8d342f4a05145655c9a1c21de4b30b5b8e6cacac7fbaf4cb88cf300a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling jack-sys v0.2.0 (https://github.com/spunge/rust-jack.git#c645e0b1)
[INFO] [stderr]    Compiling jack v0.6.0-rc1 (https://github.com/spunge/rust-jack.git#c645e0b1)
[INFO] [stderr]    Compiling gilrs-core v0.2.5
[INFO] [stderr]    Compiling gilrs v0.7.4
[INFO] [stderr]    Compiling forex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(&jack::RawMidi { time: frame, bytes: &bytes });
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let _ = writer.write(&jack::RawMidi { time: frame, bytes: &bytes });
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `Command { std: "docker" "inspect" "8a38d95b8d342f4a05145655c9a1c21de4b30b5b8e6cacac7fbaf4cb88cf300a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a38d95b8d342f4a05145655c9a1c21de4b30b5b8e6cacac7fbaf4cb88cf300a", kill_on_drop: false }`
[INFO] [stdout] 8a38d95b8d342f4a05145655c9a1c21de4b30b5b8e6cacac7fbaf4cb88cf300a
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d92887fe891475dac260e4a4fd4e9af0df2cf426e7ab8bbb9774074de387c7d
[INFO] running `Command { std: "docker" "start" "-a" "4d92887fe891475dac260e4a4fd4e9af0df2cf426e7ab8bbb9774074de387c7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling forex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(&jack::RawMidi { time: frame, bytes: &bytes });
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 170 |             let _ = writer.write(&jack::RawMidi { time: frame, bytes: &bytes });
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "4d92887fe891475dac260e4a4fd4e9af0df2cf426e7ab8bbb9774074de387c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d92887fe891475dac260e4a4fd4e9af0df2cf426e7ab8bbb9774074de387c7d", kill_on_drop: false }`
[INFO] [stdout] 4d92887fe891475dac260e4a4fd4e9af0df2cf426e7ab8bbb9774074de387c7d