[INFO] cloning repository https://github.com/htoopyaelinn56/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/htoopyaelinn56/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtoopyaelinn56%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtoopyaelinn56%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb9bd52f2c310926e091b30cf3cd0211c769cf30
[INFO] testing htoopyaelinn56/rust_practice against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtoopyaelinn56%2Frust_practice" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/htoopyaelinn56/rust_practice
[INFO] finished tweaking git repo https://github.com/htoopyaelinn56/rust_practice
[INFO] tweaked toml for git repo https://github.com/htoopyaelinn56/rust_practice written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/htoopyaelinn56/rust_practice on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/htoopyaelinn56/rust_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084
[INFO] running `Command { std: "docker" "start" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling memoffset v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling whoami v1.4.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling uuid v1.4.1
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha-1 v0.10.1
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.7
[INFO] [stderr]    Compiling md-5 v0.10.5
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling thiserror-impl v1.0.48
[INFO] [stderr]    Compiling machine-id v0.4.0
[INFO] [stderr]    Compiling sysinfo v0.29.7
[INFO] [stderr]    Compiling machineid-rs v1.2.4
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/thread_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | mod thread_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]  --> src/get_device_unique_id.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test() {
[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 `thread_test` is never used
[INFO] [stdout]  --> src/thread_test.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn thread_test() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_test` is never used
[INFO] [stdout]   --> src/thread_test.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn move_test() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `channel_test` is never used
[INFO] [stdout]   --> src/thread_test.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn channel_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutliple_message` is never used
[INFO] [stdout]   --> src/thread_test.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn mutliple_message() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_single_thread_test` is never used
[INFO] [stdout]   --> src/thread_test.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn mutex_single_thread_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_multi_thread_test` is never used
[INFO] [stdout]    --> src/thread_test.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn mutex_multi_thread_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modifying_state_concurrently` is never used
[INFO] [stdout]    --> src/thread_test.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn modifying_state_concurrently() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 37.94s
[INFO] running `Command { std: "docker" "inspect" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/thread_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]  --> src/get_device_unique_id.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn test() {
[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 `thread_test` is never used
[INFO] [stdout]  --> src/thread_test.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn thread_test() {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_test` is never used
[INFO] [stdout]   --> src/thread_test.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn move_test() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `channel_test` is never used
[INFO] [stdout]   --> src/thread_test.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn channel_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutliple_message` is never used
[INFO] [stdout]   --> src/thread_test.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn mutliple_message() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_single_thread_test` is never used
[INFO] [stdout]   --> src/thread_test.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub fn mutex_single_thread_test() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mutex_multi_thread_test` is never used
[INFO] [stdout]    --> src/thread_test.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn mutex_multi_thread_test() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `modifying_state_concurrently` is never used
[INFO] [stdout]    --> src/thread_test.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn modifying_state_concurrently() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `rc::Rc`
[INFO] [stderr]  --> src/thread_test.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     rc::Rc,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `test` is never used
[INFO] [stderr]  --> src/get_device_unique_id.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   |        ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `thread_test` is never used
[INFO] [stderr]  --> src/thread_test.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn thread_test() {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `move_test` is never used
[INFO] [stderr]   --> src/thread_test.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn move_test() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `channel_test` is never used
[INFO] [stderr]   --> src/thread_test.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn channel_test() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mutliple_message` is never used
[INFO] [stderr]   --> src/thread_test.rs:55:8
[INFO] [stderr]    |
[INFO] [stderr] 55 | pub fn mutliple_message() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mutex_single_thread_test` is never used
[INFO] [stderr]   --> src/thread_test.rs:91:8
[INFO] [stderr]    |
[INFO] [stderr] 91 | pub fn mutex_single_thread_test() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mutex_multi_thread_test` is never used
[INFO] [stderr]    --> src/thread_test.rs:102:8
[INFO] [stderr]     |
[INFO] [stderr] 102 | pub fn mutex_multi_thread_test() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `modifying_state_concurrently` is never used
[INFO] [stderr]    --> src/thread_test.rs:124:8
[INFO] [stderr]     |
[INFO] [stderr] 124 | pub fn modifying_state_concurrently() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `hello_cargo` (bin "hello_cargo" test) generated 9 warnings (run `cargo fix --bin "hello_cargo" -p hello_cargo --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/hello_cargo-00693a433d6c5ced)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/hello_cargo-4c61f27f7248634e)
[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] [stderr]    Doc-tests hello_cargo
[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" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084", kill_on_drop: false }`
[INFO] [stdout] acebfc06850d1ac56be1ffa57a1eaa414cdc55af31816fe532b67f6711162084