[INFO] cloning repository https://github.com/Triballian/isfnset
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Triballian/isfnset" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTriballian%2Fisfnset", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTriballian%2Fisfnset'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc35866656abd624dea57900833f1c4e0297c8c9
[INFO] testing Triballian/isfnset against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTriballian%2Fisfnset" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Triballian/isfnset on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Triballian/isfnset
[INFO] finished tweaking git repo https://github.com/Triballian/isfnset
[INFO] tweaked toml for git repo https://github.com/Triballian/isfnset written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/Triballian/isfnset already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ea8d81fe2788b1f3545ca02d5586735cee5307c373191e74ee3f06342e88c6a
[INFO] running `Command { std: "docker" "start" "-a" "9ea8d81fe2788b1f3545ca02d5586735cee5307c373191e74ee3f06342e88c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ea8d81fe2788b1f3545ca02d5586735cee5307c373191e74ee3f06342e88c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ea8d81fe2788b1f3545ca02d5586735cee5307c373191e74ee3f06342e88c6a", kill_on_drop: false }`
[INFO] [stdout] 9ea8d81fe2788b1f3545ca02d5586735cee5307c373191e74ee3f06342e88c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99c1224955d96ccf3def94b78da62e89f0e4a554b44cd06f76a1a6d67d22548e
[INFO] running `Command { std: "docker" "start" "-a" "99c1224955d96ccf3def94b78da62e89f0e4a554b44cd06f76a1a6d67d22548e", kill_on_drop: false }`
[INFO] [stderr]    Compiling isfnset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/isfn/isfno.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                     &adoms.push(set.domain);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |                     let _ = &adoms.push(set.domain);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "99c1224955d96ccf3def94b78da62e89f0e4a554b44cd06f76a1a6d67d22548e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99c1224955d96ccf3def94b78da62e89f0e4a554b44cd06f76a1a6d67d22548e", kill_on_drop: false }`
[INFO] [stdout] 99c1224955d96ccf3def94b78da62e89f0e4a554b44cd06f76a1a6d67d22548e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a619c845caceffe32879cc21857e43ada82383bf1d1dfa83da3a504edfb229f
[INFO] running `Command { std: "docker" "start" "-a" "4a619c845caceffe32879cc21857e43ada82383bf1d1dfa83da3a504edfb229f", kill_on_drop: false }`
[INFO] [stderr]    Compiling isfnset v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/isfn/isfno.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |                     &adoms.push(set.domain);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |                     let _ = &adoms.push(set.domain);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "4a619c845caceffe32879cc21857e43ada82383bf1d1dfa83da3a504edfb229f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a619c845caceffe32879cc21857e43ada82383bf1d1dfa83da3a504edfb229f", kill_on_drop: false }`
[INFO] [stdout] 4a619c845caceffe32879cc21857e43ada82383bf1d1dfa83da3a504edfb229f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f20647efbf4c46bdafce0cb2c5e008b949075a94e80c351b2c03609ce0bd6074
[INFO] running `Command { std: "docker" "start" "-a" "f20647efbf4c46bdafce0cb2c5e008b949075a94e80c351b2c03609ce0bd6074", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/isfn/isfno.rs:30:21
[INFO] [stderr]    |
[INFO] [stderr] 30 |                     &adoms.push(set.domain);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 30 |                     let _ = &adoms.push(set.domain);
[INFO] [stderr]    |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `isfnset` (bin "isfnset" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/isfnset-354c7e7fbac1214b)
[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" "f20647efbf4c46bdafce0cb2c5e008b949075a94e80c351b2c03609ce0bd6074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20647efbf4c46bdafce0cb2c5e008b949075a94e80c351b2c03609ce0bd6074", kill_on_drop: false }`
[INFO] [stdout] f20647efbf4c46bdafce0cb2c5e008b949075a94e80c351b2c03609ce0bd6074