[INFO] fetching crate sqrt-rs 0.1.0...
[INFO] building sqrt-rs-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sqrt-rs 0.1.0 into /workspace/builds/worker-0-tc2/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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sqrt-rs 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc0fbd3bff1da129a4ec75df9c11109ce1d0d86aa168f0be8cb1ebe8dc41bddd
[INFO] running `Command { std: "docker" "start" "-a" "dc0fbd3bff1da129a4ec75df9c11109ce1d0d86aa168f0be8cb1ebe8dc41bddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc0fbd3bff1da129a4ec75df9c11109ce1d0d86aa168f0be8cb1ebe8dc41bddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0fbd3bff1da129a4ec75df9c11109ce1d0d86aa168f0be8cb1ebe8dc41bddd", kill_on_drop: false }`
[INFO] [stdout] dc0fbd3bff1da129a4ec75df9c11109ce1d0d86aa168f0be8cb1ebe8dc41bddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8613f91f821657cc40e1a47d53596649de7ff0017f96f96f6257777fc2d375ba
[INFO] running `Command { std: "docker" "start" "-a" "8613f91f821657cc40e1a47d53596649de7ff0017f96f96f6257777fc2d375ba", 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)]` (part of `#[warn(unused)]`) 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 0.11s
[INFO] running `Command { std: "docker" "inspect" "8613f91f821657cc40e1a47d53596649de7ff0017f96f96f6257777fc2d375ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8613f91f821657cc40e1a47d53596649de7ff0017f96f96f6257777fc2d375ba", kill_on_drop: false }`
[INFO] [stdout] 8613f91f821657cc40e1a47d53596649de7ff0017f96f96f6257777fc2d375ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3179c43f94ba65c32b27dca954ffad13ca4b5492bccb9f65ad71bee938ba4dc9
[INFO] running `Command { std: "docker" "start" "-a" "3179c43f94ba65c32b27dca954ffad13ca4b5492bccb9f65ad71bee938ba4dc9", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "3179c43f94ba65c32b27dca954ffad13ca4b5492bccb9f65ad71bee938ba4dc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3179c43f94ba65c32b27dca954ffad13ca4b5492bccb9f65ad71bee938ba4dc9", kill_on_drop: false }`
[INFO] [stdout] 3179c43f94ba65c32b27dca954ffad13ca4b5492bccb9f65ad71bee938ba4dc9