[INFO] fetching crate bench_timer 0.1.1...
[INFO] testing bench_timer-0.1.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate bench_timer 0.1.1 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate bench_timer 0.1.1 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 crates.io crate bench_timer 0.1.1
[INFO] finished tweaking crates.io crate bench_timer 0.1.1
[INFO] tweaked toml for crates.io crate bench_timer 0.1.1 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stderr v0.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] c8ee94258e2f58fb38be5cd036afb37a6910ac5c201a5b639674ec48765f7790
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[INFO] running `Command { std: "docker" "inspect" "c8ee94258e2f58fb38be5cd036afb37a6910ac5c201a5b639674ec48765f7790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ee94258e2f58fb38be5cd036afb37a6910ac5c201a5b639674ec48765f7790", kill_on_drop: false }`
[INFO] [stdout] c8ee94258e2f58fb38be5cd036afb37a6910ac5c201a5b639674ec48765f7790
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] ac7519df6a771f5d0997ddc1f7a15bb840b4ad47e71d76fa850e95a7ec3b1924
[INFO] running `Command { std: "docker" "start" "-a" "ac7519df6a771f5d0997ddc1f7a15bb840b4ad47e71d76fa850e95a7ec3b1924", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling stderr v0.8.0
[INFO] [stderr]    Compiling bench_timer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "ac7519df6a771f5d0997ddc1f7a15bb840b4ad47e71d76fa850e95a7ec3b1924", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac7519df6a771f5d0997ddc1f7a15bb840b4ad47e71d76fa850e95a7ec3b1924", kill_on_drop: false }`
[INFO] [stdout] ac7519df6a771f5d0997ddc1f7a15bb840b4ad47e71d76fa850e95a7ec3b1924
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 56266ab6f101c4e2fd73d2c21233c93121478ef50f4fbcb0bbcecf37d2b0910e
[INFO] running `Command { std: "docker" "start" "-a" "56266ab6f101c4e2fd73d2c21233c93121478ef50f4fbcb0bbcecf37d2b0910e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bench_timer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/s.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> tests/test_s.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     dbln!("{}", s);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "56266ab6f101c4e2fd73d2c21233c93121478ef50f4fbcb0bbcecf37d2b0910e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56266ab6f101c4e2fd73d2c21233c93121478ef50f4fbcb0bbcecf37d2b0910e", kill_on_drop: false }`
[INFO] [stdout] 56266ab6f101c4e2fd73d2c21233c93121478ef50f4fbcb0bbcecf37d2b0910e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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] 41d28c852bedfc807dd25e0b7cfa840ca948ff80089a27e64f0579ab3281316e
[INFO] running `Command { std: "docker" "start" "-a" "41d28c852bedfc807dd25e0b7cfa840ca948ff80089a27e64f0579ab3281316e", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> examples/s.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 81 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> tests/test_s.rs:86:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 86 |     dbln!("{}", s);
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> tests/test_s.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 |     dbln!("{}", s);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `db` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `bench_timer` (example "s") generated 10 warnings
[INFO] [stderr] warning: `bench_timer` (test "test_s") generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bench_timer-ec162648fa73f701)
[INFO] [stderr]      Running tests/test_s.rs (/opt/rustwide/target/debug/deps/test_s-2f5815aab2573cf8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.98s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bench_timer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "41d28c852bedfc807dd25e0b7cfa840ca948ff80089a27e64f0579ab3281316e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41d28c852bedfc807dd25e0b7cfa840ca948ff80089a27e64f0579ab3281316e", kill_on_drop: false }`
[INFO] [stdout] 41d28c852bedfc807dd25e0b7cfa840ca948ff80089a27e64f0579ab3281316e