[INFO] fetching crate sqrt-rs 0.1.0...
[INFO] testing sqrt-rs-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate sqrt-rs 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate sqrt-rs 0.1.0
[INFO] finished tweaking crates.io crate sqrt-rs 0.1.0
[INFO] tweaked toml for crates.io crate sqrt-rs 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sqrt-rs 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93d66665a8f9644e8e7197a691667388a07a59d5c045c45b16661c6e700908cb
[INFO] running `Command { std: "docker" "start" "-a" "93d66665a8f9644e8e7197a691667388a07a59d5c045c45b16661c6e700908cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93d66665a8f9644e8e7197a691667388a07a59d5c045c45b16661c6e700908cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d66665a8f9644e8e7197a691667388a07a59d5c045c45b16661c6e700908cb", kill_on_drop: false }`
[INFO] [stdout] 93d66665a8f9644e8e7197a691667388a07a59d5c045c45b16661c6e700908cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2b24eb3771a59363e98438f9484d8a9ae1fd5f1e218deb72d4bbb333f81a46d
[INFO] running `Command { std: "docker" "start" "-a" "f2b24eb3771a59363e98438f9484d8a9ae1fd5f1e218deb72d4bbb333f81a46d", kill_on_drop: false }`
[INFO] [stderr]    Compiling sqrt-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `N` is never used
[INFO] [stdout]  --> src/lib.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const N: f32 = 0.1428571428571428571428571428571; //I Don't Know What This Do BTW
[INFO] [stdout]   |       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newton_sqrt` is never used
[INFO] [stdout]   --> src/lib.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn newton_sqrt(x: f32, n: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "f2b24eb3771a59363e98438f9484d8a9ae1fd5f1e218deb72d4bbb333f81a46d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b24eb3771a59363e98438f9484d8a9ae1fd5f1e218deb72d4bbb333f81a46d", kill_on_drop: false }`
[INFO] [stdout] f2b24eb3771a59363e98438f9484d8a9ae1fd5f1e218deb72d4bbb333f81a46d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33690a1e10f6edd10be447d5c9c23deae506c8202f178a74d498b51f05a58952
[INFO] running `Command { std: "docker" "start" "-a" "33690a1e10f6edd10be447d5c9c23deae506c8202f178a74d498b51f05a58952", kill_on_drop: false }`
[INFO] [stderr]    Compiling sqrt-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `N` is never used
[INFO] [stdout]  --> src/lib.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const N: f32 = 0.1428571428571428571428571428571; //I Don't Know What This Do BTW
[INFO] [stdout]   |       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newton_sqrt` is never used
[INFO] [stdout]   --> src/lib.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn newton_sqrt(x: f32, n: f32) -> f32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `N` is never used
[INFO] [stdout]  --> src/lib.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const N: f32 = 0.1428571428571428571428571428571; //I Don't Know What This Do BTW
[INFO] [stdout]   |       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "33690a1e10f6edd10be447d5c9c23deae506c8202f178a74d498b51f05a58952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33690a1e10f6edd10be447d5c9c23deae506c8202f178a74d498b51f05a58952", kill_on_drop: false }`
[INFO] [stdout] 33690a1e10f6edd10be447d5c9c23deae506c8202f178a74d498b51f05a58952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 584a29a11f7e1bcbd9f781d096ccb867d8935311723b5d912d19d3eae5c8aac4
[INFO] running `Command { std: "docker" "start" "-a" "584a29a11f7e1bcbd9f781d096ccb867d8935311723b5d912d19d3eae5c8aac4", kill_on_drop: false }`
[INFO] [stderr] warning: constant `N` is never used
[INFO] [stderr]  --> src/lib.rs:5:7
[INFO] [stderr]   |
[INFO] [stderr] 5 | const N: f32 = 0.1428571428571428571428571428571; //I Don't Know What This Do BTW
[INFO] [stderr]   |       ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `newton_sqrt` is never used
[INFO] [stderr]   --> src/lib.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn newton_sqrt(x: f32, n: f32) -> f32 {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `sqrt-rs` (lib) generated 2 warnings
[INFO] [stderr] warning: `sqrt-rs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sqrt_rs-d4268de193ca2df9)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sqrt_rs
[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" "584a29a11f7e1bcbd9f781d096ccb867d8935311723b5d912d19d3eae5c8aac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "584a29a11f7e1bcbd9f781d096ccb867d8935311723b5d912d19d3eae5c8aac4", kill_on_drop: false }`
[INFO] [stdout] 584a29a11f7e1bcbd9f781d096ccb867d8935311723b5d912d19d3eae5c8aac4