[INFO] cloning repository https://github.com/kgish/rust-ffi-sqrt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kgish/rust-ffi-sqrt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgish%2Frust-ffi-sqrt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgish%2Frust-ffi-sqrt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9aa62d1cc1dc1a302fd730ce496e6715b442cd31
[INFO] testing kgish/rust-ffi-sqrt against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgish%2Frust-ffi-sqrt" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kgish/rust-ffi-sqrt on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kgish/rust-ffi-sqrt
[INFO] finished tweaking git repo https://github.com/kgish/rust-ffi-sqrt
[INFO] tweaked toml for git repo https://github.com/kgish/rust-ffi-sqrt written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/kgish/rust-ffi-sqrt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0bc5c6e58572769adf84b8e69dc9215270437045f5f8f5754bd8c87bac0a1f7
[INFO] running `Command { std: "docker" "start" "-a" "b0bc5c6e58572769adf84b8e69dc9215270437045f5f8f5754bd8c87bac0a1f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0bc5c6e58572769adf84b8e69dc9215270437045f5f8f5754bd8c87bac0a1f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0bc5c6e58572769adf84b8e69dc9215270437045f5f8f5754bd8c87bac0a1f7", kill_on_drop: false }`
[INFO] [stdout] b0bc5c6e58572769adf84b8e69dc9215270437045f5f8f5754bd8c87bac0a1f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d277265c7c3262e29cf7e5eaf4ec98ffbd340e93f0dec0aa6d24599b59c557c
[INFO] running `Command { std: "docker" "start" "-a" "5d277265c7c3262e29cf7e5eaf4ec98ffbd340e93f0dec0aa6d24599b59c557c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-ffi-sqrt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/main.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  |   #[link(name = "m")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6  | / fn main() {
[INFO] [stdout] 7  | |
[INFO] [stdout] 8  | |     let x: f64 = 2.;
[INFO] [stdout] 9  | |     let result: f64 = unsafe { sqrt(x) };
[INFO] [stdout] 10 | |
[INFO] [stdout] 11 | |     println!("The square root of {} is {}", x, result);
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_- not an `extern` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `Command { std: "docker" "inspect" "5d277265c7c3262e29cf7e5eaf4ec98ffbd340e93f0dec0aa6d24599b59c557c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d277265c7c3262e29cf7e5eaf4ec98ffbd340e93f0dec0aa6d24599b59c557c", kill_on_drop: false }`
[INFO] [stdout] 5d277265c7c3262e29cf7e5eaf4ec98ffbd340e93f0dec0aa6d24599b59c557c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c8f7e04dc62f1843fa674166b59a12e070e24980e548ab47c5bfa34e04a4eb4
[INFO] running `Command { std: "docker" "start" "-a" "1c8f7e04dc62f1843fa674166b59a12e070e24980e548ab47c5bfa34e04a4eb4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-ffi-sqrt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: attribute should be applied to an `extern` block
[INFO] [stdout]   --> src/main.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout] 5  |   #[link(name = "m")]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6  | / fn main() {
[INFO] [stdout] 7  | |
[INFO] [stdout] 8  | |     let x: f64 = 2.;
[INFO] [stdout] 9  | |     let result: f64 = unsafe { sqrt(x) };
[INFO] [stdout] 10 | |
[INFO] [stdout] 11 | |     println!("The square root of {} is {}", x, result);
[INFO] [stdout] 12 | | }
[INFO] [stdout]    | |_- not an `extern` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 33.88s
[INFO] running `Command { std: "docker" "inspect" "1c8f7e04dc62f1843fa674166b59a12e070e24980e548ab47c5bfa34e04a4eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c8f7e04dc62f1843fa674166b59a12e070e24980e548ab47c5bfa34e04a4eb4", kill_on_drop: false }`
[INFO] [stdout] 1c8f7e04dc62f1843fa674166b59a12e070e24980e548ab47c5bfa34e04a4eb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e3bc9a1dc08959a0c3f27077a4a0bc48acbe9d2a99c5ed86186dc2936f65174
[INFO] running `Command { std: "docker" "start" "-a" "9e3bc9a1dc08959a0c3f27077a4a0bc48acbe9d2a99c5ed86186dc2936f65174", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: attribute should be applied to an `extern` block
[INFO] [stderr]   --> src/main.rs:5:1
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 5  |   #[link(name = "m")]
[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] 6  | / fn main() {
[INFO] [stdout] 
[INFO] [stderr] 7  | |
[INFO] [stderr] 8  | |     let x: f64 = 2.;
[INFO] [stderr] 9  | |     let result: f64 = unsafe { sqrt(x) };
[INFO] [stderr] 10 | |
[INFO] [stderr] 11 | |     println!("The square root of {} is {}", x, result);
[INFO] [stderr] 12 | | }
[INFO] [stderr]    | |_- not an `extern` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-ffi-sqrt` (bin "rust-ffi-sqrt" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 12.66s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_ffi_sqrt-9f728d7eaf824c0a)
[INFO] running `Command { std: "docker" "inspect" "9e3bc9a1dc08959a0c3f27077a4a0bc48acbe9d2a99c5ed86186dc2936f65174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e3bc9a1dc08959a0c3f27077a4a0bc48acbe9d2a99c5ed86186dc2936f65174", kill_on_drop: false }`
[INFO] [stdout] 9e3bc9a1dc08959a0c3f27077a4a0bc48acbe9d2a99c5ed86186dc2936f65174