[INFO] cloning repository https://github.com/UsairimIsani/proto-programmer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/UsairimIsani/proto-programmer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsairimIsani%2Fproto-programmer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsairimIsani%2Fproto-programmer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94d1b4d12a8a98d6325595376f50c039aaf7581f
[INFO] testing UsairimIsani/proto-programmer against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUsairimIsani%2Fproto-programmer" "/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/UsairimIsani/proto-programmer on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/UsairimIsani/proto-programmer
[INFO] finished tweaking git repo https://github.com/UsairimIsani/proto-programmer
[INFO] tweaked toml for git repo https://github.com/UsairimIsani/proto-programmer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/UsairimIsani/proto-programmer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 947c8914d1ff3e02331a4507024cbd2b10a8683c90ddfdc04162cdeed769f6b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "947c8914d1ff3e02331a4507024cbd2b10a8683c90ddfdc04162cdeed769f6b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "947c8914d1ff3e02331a4507024cbd2b10a8683c90ddfdc04162cdeed769f6b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947c8914d1ff3e02331a4507024cbd2b10a8683c90ddfdc04162cdeed769f6b5", kill_on_drop: false }`
[INFO] [stdout] 947c8914d1ff3e02331a4507024cbd2b10a8683c90ddfdc04162cdeed769f6b5
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13934db16c84957262b3a4752ab848f5009582337e30ff1dbc6a442c6ac04cc1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "13934db16c84957262b3a4752ab848f5009582337e30ff1dbc6a442c6ac04cc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proto-programmer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cmd_args`
[INFO] [stdout]   --> src/config.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let cmd_args: Args = args();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmd_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file_path`
[INFO] [stdout]  --> src/config.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         file_path: String,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `emit`
[INFO] [stdout]  --> src/config.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         emit: bool,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program`
[INFO] [stdout]  --> src/config.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         program: bool,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         &new_byte_array.push(some);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = &new_byte_array.push(some);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]  --> src/bittobyte.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 |                     &bytes_array.push(0x67);
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]   |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 9 |                     let _ = &bytes_array.push(0x67);
[INFO] [stdout]   |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/bittobyte.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 |                     &bytes_array.push(0x89);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |                     let _ = &bytes_array.push(0x89);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "13934db16c84957262b3a4752ab848f5009582337e30ff1dbc6a442c6ac04cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13934db16c84957262b3a4752ab848f5009582337e30ff1dbc6a442c6ac04cc1", kill_on_drop: false }`
[INFO] [stdout] 13934db16c84957262b3a4752ab848f5009582337e30ff1dbc6a442c6ac04cc1
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 86d0cfe884f908bc112fe24a11ac65e8caf0f243b170c6f420018628056fabba
[INFO] running `Command { std: "docker" "start" "-a" "86d0cfe884f908bc112fe24a11ac65e8caf0f243b170c6f420018628056fabba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proto-programmer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cmd_args`
[INFO] [stdout]   --> src/config.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let cmd_args: Args = args();
[INFO] [stdout]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmd_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `file_path`
[INFO] [stdout]  --> src/config.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         file_path: String,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `emit`
[INFO] [stdout]  --> src/config.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |         emit: bool,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `program`
[INFO] [stdout]  --> src/config.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         program: bool,
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         &new_byte_array.push(some);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let _ = &new_byte_array.push(some);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]  --> src/bittobyte.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 |                     &bytes_array.push(0x67);
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]   |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 9 |                     let _ = &bytes_array.push(0x67);
[INFO] [stdout]   |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/bittobyte.rs:12:21
[INFO] [stdout]    |
[INFO] [stdout] 12 |                     &bytes_array.push(0x89);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |                     let _ = &bytes_array.push(0x89);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "86d0cfe884f908bc112fe24a11ac65e8caf0f243b170c6f420018628056fabba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d0cfe884f908bc112fe24a11ac65e8caf0f243b170c6f420018628056fabba", kill_on_drop: false }`
[INFO] [stdout] 86d0cfe884f908bc112fe24a11ac65e8caf0f243b170c6f420018628056fabba
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0029c0320683519ef85aba0745ee9ea9559896e8cfb9f85cabff93cd9402ea62
[INFO] running `Command { std: "docker" "start" "-a" "0029c0320683519ef85aba0745ee9ea9559896e8cfb9f85cabff93cd9402ea62", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `cmd_args`
[INFO] [stderr]   --> src/config.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let cmd_args: Args = args();
[INFO] [stderr]    |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cmd_args`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `file_path`
[INFO] [stderr]  --> src/config.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |         file_path: String,
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `emit`
[INFO] [stderr]  --> src/config.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |         emit: bool,
[INFO] [stderr]   |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `program`
[INFO] [stderr]  --> src/config.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |         program: bool,
[INFO] [stderr]   |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |         &new_byte_array.push(some);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 16 |         let _ = &new_byte_array.push(some);
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]  --> src/bittobyte.rs:9:21
[INFO] [stderr]   |
[INFO] [stderr] 9 |                     &bytes_array.push(0x67);
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]   |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]   |
[INFO] [stderr] 9 |                     let _ = &bytes_array.push(0x67);
[INFO] [stderr]   |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/bittobyte.rs:12:21
[INFO] [stderr]    |
[INFO] [stderr] 12 |                     &bytes_array.push(0x89);
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 12 |                     let _ = &bytes_array.push(0x89);
[INFO] [stderr]    |                     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `proto-programmer` (bin "proto-programmer" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/proto_programmer-4bd564816ce60143)
[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" "0029c0320683519ef85aba0745ee9ea9559896e8cfb9f85cabff93cd9402ea62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0029c0320683519ef85aba0745ee9ea9559896e8cfb9f85cabff93cd9402ea62", kill_on_drop: false }`
[INFO] [stdout] 0029c0320683519ef85aba0745ee9ea9559896e8cfb9f85cabff93cd9402ea62