[INFO] fetching crate product-os-tower 0.0.4...
[INFO] testing product-os-tower-0.0.4 against 1.91.0 for beta-1.92-2
[INFO] extracting crate product-os-tower 0.0.4 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate product-os-tower 0.0.4
[INFO] finished tweaking crates.io crate product-os-tower 0.0.4
[INFO] tweaked toml for crates.io crate product-os-tower 0.0.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate product-os-tower 0.0.4 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 49 packages to latest compatible versions
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.12.0)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[INFO] [stderr]       Adding sync_wrapper v0.1.2 (available: v1.0.2)
[INFO] [stderr]       Adding tower v0.4.13 (available: v0.5.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded product-os-async-executor v0.0.17
[INFO] [stderr]   Downloaded ioslice v0.6.0
[INFO] [stderr]   Downloaded core-error v0.0.1-rc4
[INFO] [stderr]   Downloaded product-os-security v0.0.61
[INFO] [stderr]   Downloaded hdrhistogram v7.5.4
[INFO] [stderr]   Downloaded product-os-tower-service v0.0.2
[INFO] [stderr]   Downloaded toad-hash v0.3.0
[INFO] [stderr]   Downloaded product-os-semaphore v0.0.1
[INFO] [stderr]   Downloaded product-os-tower-layer v0.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4ca60e559de6de4051cf98f2a14fd0761fc4f88b0d14cb12909434f0a903259
[INFO] running `Command { std: "docker" "start" "-a" "f4ca60e559de6de4051cf98f2a14fd0761fc4f88b0d14cb12909434f0a903259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4ca60e559de6de4051cf98f2a14fd0761fc4f88b0d14cb12909434f0a903259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4ca60e559de6de4051cf98f2a14fd0761fc4f88b0d14cb12909434f0a903259", kill_on_drop: false }`
[INFO] [stdout] f4ca60e559de6de4051cf98f2a14fd0761fc4f88b0d14cb12909434f0a903259
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff5b94da643b0cdb9ccbf8b2d734da60b97db2675a9f098cf856f8fa9faa5a33
[INFO] running `Command { std: "docker" "start" "-a" "ff5b94da643b0cdb9ccbf8b2d734da60b97db2675a9f098cf856f8fa9faa5a33", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling no-std-compat v0.4.1
[INFO] [stderr]    Compiling tower-layer v0.3.3
[INFO] [stderr]    Compiling tower-service v0.3.3
[INFO] [stderr]    Compiling product-os-tower-layer v0.0.2
[INFO] [stderr]    Compiling product-os-tower-service v0.0.2
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling core-error v0.0.1-rc4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling product-os-tower v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::prelude::v1::*`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::prelude::v1::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "ff5b94da643b0cdb9ccbf8b2d734da60b97db2675a9f098cf856f8fa9faa5a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff5b94da643b0cdb9ccbf8b2d734da60b97db2675a9f098cf856f8fa9faa5a33", kill_on_drop: false }`
[INFO] [stdout] ff5b94da643b0cdb9ccbf8b2d734da60b97db2675a9f098cf856f8fa9faa5a33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0963aa33a808fb53e2454841340e97c98cd8bcd601b05601206f97f25fa6b55
[INFO] running `Command { std: "docker" "start" "-a" "b0963aa33a808fb53e2454841340e97c98cd8bcd601b05601206f97f25fa6b55", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::prelude::v1::*`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::prelude::v1::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling product-os-tower v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::prelude::v1::*`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::prelude::v1::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "b0963aa33a808fb53e2454841340e97c98cd8bcd601b05601206f97f25fa6b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0963aa33a808fb53e2454841340e97c98cd8bcd601b05601206f97f25fa6b55", kill_on_drop: false }`
[INFO] [stdout] b0963aa33a808fb53e2454841340e97c98cd8bcd601b05601206f97f25fa6b55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7539e8622e2d11d85f70aec53146fdd586b5ed74504d1d74a2b555f7e757ef1f
[INFO] running `Command { std: "docker" "start" "-a" "7539e8622e2d11d85f70aec53146fdd586b5ed74504d1d74a2b555f7e757ef1f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::prelude::v1::*`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::prelude::v1::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `product-os-tower` (lib) generated 1 warning (run `cargo fix --lib -p product-os-tower` to apply 1 suggestion)
[INFO] [stderr] warning: `product-os-tower` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/product_os_tower-2631d5fbf264f93e)
[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] [stderr]    Doc-tests product_os_tower
[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" "7539e8622e2d11d85f70aec53146fdd586b5ed74504d1d74a2b555f7e757ef1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7539e8622e2d11d85f70aec53146fdd586b5ed74504d1d74a2b555f7e757ef1f", kill_on_drop: false }`
[INFO] [stdout] 7539e8622e2d11d85f70aec53146fdd586b5ed74504d1d74a2b555f7e757ef1f