[INFO] cloning repository https://github.com/cenkcorapci/rust-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cenkcorapci/rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenkcorapci%2Frust-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenkcorapci%2Frust-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29df853261af1a1fd6a23bdd76f129972556b634
[INFO] testing cenkcorapci/rust-demo against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenkcorapci%2Frust-demo" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cenkcorapci/rust-demo on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cenkcorapci/rust-demo
[INFO] finished tweaking git repo https://github.com/cenkcorapci/rust-demo
[INFO] tweaked toml for git repo https://github.com/cenkcorapci/rust-demo written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/cenkcorapci/rust-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a6f0fbdc33717ec3563a50bdb74617caee7415171d59463471fdb662ce3dc13
[INFO] running `Command { std: "docker" "start" "-a" "2a6f0fbdc33717ec3563a50bdb74617caee7415171d59463471fdb662ce3dc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a6f0fbdc33717ec3563a50bdb74617caee7415171d59463471fdb662ce3dc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6f0fbdc33717ec3563a50bdb74617caee7415171d59463471fdb662ce3dc13", kill_on_drop: false }`
[INFO] [stdout] 2a6f0fbdc33717ec3563a50bdb74617caee7415171d59463471fdb662ce3dc13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6a1708bc4b2ca2b8c7d3eed2f4c75332057453a0f9b989ca74853246714666e
[INFO] running `Command { std: "docker" "start" "-a" "b6a1708bc4b2ca2b8c7d3eed2f4c75332057453a0f9b989ca74853246714666e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `fixed_size_array`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let fixed_size_array: [i32; 4] = [1, 2, 3, 4];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fixed_size_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `freezable` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut freezable: i32 = 2;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_freezable` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `freezable`
[INFO] [stdout]   --> src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let freezable = 3;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_freezable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `freezable` is never read
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     freezable = 4;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let f = match f {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `another_func`
[INFO] [stdout]  --> src/a_folder/module_under_folder.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn another_func() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `Command { std: "docker" "inspect" "b6a1708bc4b2ca2b8c7d3eed2f4c75332057453a0f9b989ca74853246714666e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6a1708bc4b2ca2b8c7d3eed2f4c75332057453a0f9b989ca74853246714666e", kill_on_drop: false }`
[INFO] [stdout] b6a1708bc4b2ca2b8c7d3eed2f4c75332057453a0f9b989ca74853246714666e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e392b9e06f7c49e225d932cfcdf331b2a072f0ead2ccb8640c05a46c37a74458
[INFO] running `Command { std: "docker" "start" "-a" "e392b9e06f7c49e225d932cfcdf331b2a072f0ead2ccb8640c05a46c37a74458", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `fixed_size_array`
[INFO] [stdout]   --> src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let fixed_size_array: [i32; 4] = [1, 2, 3, 4];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fixed_size_array`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `freezable` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut freezable: i32 = 2;
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_freezable` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `freezable`
[INFO] [stdout]   --> src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let freezable = 3;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_freezable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `freezable` is never read
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     freezable = 4;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let f = match f {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `another_func`
[INFO] [stdout]  --> src/a_folder/module_under_folder.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn another_func() {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_demo-87eb00528f543428)
[INFO] running `Command { std: "docker" "inspect" "e392b9e06f7c49e225d932cfcdf331b2a072f0ead2ccb8640c05a46c37a74458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e392b9e06f7c49e225d932cfcdf331b2a072f0ead2ccb8640c05a46c37a74458", kill_on_drop: false }`
[INFO] [stdout] e392b9e06f7c49e225d932cfcdf331b2a072f0ead2ccb8640c05a46c37a74458
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9ef3aba88ac265b8f712e6e5aebb787df28fe5b615da6e52650b85bcea868f82
[INFO] running `Command { std: "docker" "start" "-a" "9ef3aba88ac265b8f712e6e5aebb787df28fe5b615da6e52650b85bcea868f82", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `fixed_size_array`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let fixed_size_array: [i32; 4] = [1, 2, 3, 4];
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fixed_size_array`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `freezable` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut freezable: i32 = 2;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_freezable` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `freezable`
[INFO] [stderr]   --> src/main.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let freezable = 3;
[INFO] [stderr]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_freezable`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `freezable` is never read
[INFO] [stderr]   --> src/main.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     freezable = 4;
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let f = match f {
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `another_func`
[INFO] [stderr]  --> src/a_folder/module_under_folder.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn another_func() {
[INFO] [stderr]   |        ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-demo` (bin "rust-demo" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_demo-87eb00528f543428)
[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" "9ef3aba88ac265b8f712e6e5aebb787df28fe5b615da6e52650b85bcea868f82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ef3aba88ac265b8f712e6e5aebb787df28fe5b615da6e52650b85bcea868f82", kill_on_drop: false }`
[INFO] [stdout] 9ef3aba88ac265b8f712e6e5aebb787df28fe5b615da6e52650b85bcea868f82