[INFO] cloning repository https://github.com/jmcelwain/the_linux_programming_interface
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmcelwain/the_linux_programming_interface" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcelwain%2Fthe_linux_programming_interface", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcelwain%2Fthe_linux_programming_interface'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20d87244e4a21b0c11f1818de6e85d89b1648b19
[INFO] testing jmcelwain/the_linux_programming_interface against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcelwain%2Fthe_linux_programming_interface" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmcelwain/the_linux_programming_interface on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jmcelwain/the_linux_programming_interface
[INFO] finished tweaking git repo https://github.com/jmcelwain/the_linux_programming_interface
[INFO] tweaked toml for git repo https://github.com/jmcelwain/the_linux_programming_interface written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jmcelwain/the_linux_programming_interface already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 240afcb90c1fcfc522ee45d914bc17b28841ecb43869b49939d21dad74fe5403
[INFO] running `Command { std: "docker" "start" "-a" "240afcb90c1fcfc522ee45d914bc17b28841ecb43869b49939d21dad74fe5403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "240afcb90c1fcfc522ee45d914bc17b28841ecb43869b49939d21dad74fe5403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "240afcb90c1fcfc522ee45d914bc17b28841ecb43869b49939d21dad74fe5403", kill_on_drop: false }`
[INFO] [stdout] 240afcb90c1fcfc522ee45d914bc17b28841ecb43869b49939d21dad74fe5403
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b7946c3012b35ff306faaaf0fa6645d15aa00d79da634f980a5e029736d1883
[INFO] running `Command { std: "docker" "start" "-a" "8b7946c3012b35ff306faaaf0fa6645d15aa00d79da634f980a5e029736d1883", kill_on_drop: false }`
[INFO] [stderr]    Compiling linux_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `to_path`
[INFO] [stdout]  --> src/fileio/copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let to_path = Path::new(to);
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_path`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]  --> src/fileio/copy.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let file = match File::open(&from) {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy`
[INFO] [stdout]  --> src/fileio/copy.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn copy(from: &String, to: &String) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "8b7946c3012b35ff306faaaf0fa6645d15aa00d79da634f980a5e029736d1883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b7946c3012b35ff306faaaf0fa6645d15aa00d79da634f980a5e029736d1883", kill_on_drop: false }`
[INFO] [stdout] 8b7946c3012b35ff306faaaf0fa6645d15aa00d79da634f980a5e029736d1883
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d92632db8b856efe1c7845ba85c6f2a47fdf4e0395477ec726d78d258773992
[INFO] running `Command { std: "docker" "start" "-a" "1d92632db8b856efe1c7845ba85c6f2a47fdf4e0395477ec726d78d258773992", kill_on_drop: false }`
[INFO] [stderr]    Compiling linux_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `to_path`
[INFO] [stdout]  --> src/fileio/copy.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let to_path = Path::new(to);
[INFO] [stdout]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_path`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]  --> src/fileio/copy.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let file = match File::open(&from) {
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy`
[INFO] [stdout]  --> src/fileio/copy.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn copy(from: &String, to: &String) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "1d92632db8b856efe1c7845ba85c6f2a47fdf4e0395477ec726d78d258773992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d92632db8b856efe1c7845ba85c6f2a47fdf4e0395477ec726d78d258773992", kill_on_drop: false }`
[INFO] [stdout] 1d92632db8b856efe1c7845ba85c6f2a47fdf4e0395477ec726d78d258773992
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0c5aaef033547bf31df1f27f220fbf48a7e5079e66a4f37fc39b43cead374779
[INFO] running `Command { std: "docker" "start" "-a" "0c5aaef033547bf31df1f27f220fbf48a7e5079e66a4f37fc39b43cead374779", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `to_path`
[INFO] [stderr]  --> src/fileio/copy.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let to_path = Path::new(to);
[INFO] [stderr]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_path`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]  --> src/fileio/copy.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let file = match File::open(&from) {
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `copy`
[INFO] [stderr]  --> src/fileio/copy.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub fn copy(from: &String, to: &String) {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `linux_interface` (bin "linux_interface" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linux_interface-d9c30a8a23ffffd7)
[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" "0c5aaef033547bf31df1f27f220fbf48a7e5079e66a4f37fc39b43cead374779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5aaef033547bf31df1f27f220fbf48a7e5079e66a4f37fc39b43cead374779", kill_on_drop: false }`
[INFO] [stdout] 0c5aaef033547bf31df1f27f220fbf48a7e5079e66a4f37fc39b43cead374779