[INFO] cloning repository https://github.com/JGiter/problem_solving_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JGiter/problem_solving_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJGiter%2Fproblem_solving_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJGiter%2Fproblem_solving_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afee55dd4abf2624abf431d914521aaf014d5b58
[INFO] testing JGiter/problem_solving_rust 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%2FJGiter%2Fproblem_solving_rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JGiter/problem_solving_rust 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/JGiter/problem_solving_rust
[INFO] finished tweaking git repo https://github.com/JGiter/problem_solving_rust
[INFO] tweaked toml for git repo https://github.com/JGiter/problem_solving_rust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/JGiter/problem_solving_rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] b6282893176842cd7ab96b478b542fb784c211bc2a34bd1f7f6ef19d47468c78
[INFO] running `Command { std: "docker" "start" "-a" "b6282893176842cd7ab96b478b542fb784c211bc2a34bd1f7f6ef19d47468c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6282893176842cd7ab96b478b542fb784c211bc2a34bd1f7f6ef19d47468c78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6282893176842cd7ab96b478b542fb784c211bc2a34bd1f7f6ef19d47468c78", kill_on_drop: false }`
[INFO] [stdout] b6282893176842cd7ab96b478b542fb784c211bc2a34bd1f7f6ef19d47468c78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 684a2490de62c4ecaa98fb4708e5ea6c19e924fcf06e602c1acf089b5450ba32
[INFO] running `Command { std: "docker" "start" "-a" "684a2490de62c4ecaa98fb4708e5ea6c19e924fcf06e602c1acf089b5450ba32", kill_on_drop: false }`
[INFO] [stderr]    Compiling problem_solving_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bst_merge_sort.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/bst_merge_sort.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn add(&mut self, val: i32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sorted`
[INFO] [stdout]   --> src/bst_merge_sort.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn sorted(&self) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bst_merge_sort`
[INFO] [stdout]   --> src/bst_merge_sort.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn bst_merge_sort(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `frog_jumps`
[INFO] [stdout]  --> src/frog_jumps.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn frog_jumps(stones: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `jump`
[INFO] [stdout]   --> src/frog_jumps.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn jump(
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "684a2490de62c4ecaa98fb4708e5ea6c19e924fcf06e602c1acf089b5450ba32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684a2490de62c4ecaa98fb4708e5ea6c19e924fcf06e602c1acf089b5450ba32", kill_on_drop: false }`
[INFO] [stdout] 684a2490de62c4ecaa98fb4708e5ea6c19e924fcf06e602c1acf089b5450ba32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 44abd857d93bf2241858006f0b274d9f219b1e93fba55fd92ae403db35e584ce
[INFO] running `Command { std: "docker" "start" "-a" "44abd857d93bf2241858006f0b274d9f219b1e93fba55fd92ae403db35e584ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling problem_solving_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/bst_merge_sort.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(val: i32) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add`
[INFO] [stdout]   --> src/bst_merge_sort.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn add(&mut self, val: i32) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sorted`
[INFO] [stdout]   --> src/bst_merge_sort.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn sorted(&self) -> Vec<i32> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bst_merge_sort`
[INFO] [stdout]   --> src/bst_merge_sort.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn bst_merge_sort(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `frog_jumps`
[INFO] [stdout]  --> src/frog_jumps.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn frog_jumps(stones: Vec<i32>) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `jump`
[INFO] [stdout]   --> src/frog_jumps.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn jump(
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/problem_solving-9dbf2a2c448fcb50)
[INFO] running `Command { std: "docker" "inspect" "44abd857d93bf2241858006f0b274d9f219b1e93fba55fd92ae403db35e584ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44abd857d93bf2241858006f0b274d9f219b1e93fba55fd92ae403db35e584ce", kill_on_drop: false }`
[INFO] [stdout] 44abd857d93bf2241858006f0b274d9f219b1e93fba55fd92ae403db35e584ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 040529fc79e8491996b48adf0711b7d6f41a39e9fb9b2a03590af93024e7c2d3
[INFO] running `Command { std: "docker" "start" "-a" "040529fc79e8491996b48adf0711b7d6f41a39e9fb9b2a03590af93024e7c2d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/bst_merge_sort.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new(val: i32) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add`
[INFO] [stderr]   --> src/bst_merge_sort.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn add(&mut self, val: i32) {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sorted`
[INFO] [stderr]   --> src/bst_merge_sort.rs:38:8
[INFO] [stderr]    |
[INFO] [stderr] 38 |     fn sorted(&self) -> Vec<i32> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `bst_merge_sort`
[INFO] [stderr]   --> src/bst_merge_sort.rs:51:4
[INFO] [stderr]    |
[INFO] [stderr] 51 | fn bst_merge_sort(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `frog_jumps`
[INFO] [stderr]  --> src/frog_jumps.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn frog_jumps(stones: Vec<i32>) -> bool {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `jump`
[INFO] [stderr]   --> src/frog_jumps.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn jump(
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `problem_solving_rust` (lib) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/problem_solving-9dbf2a2c448fcb50)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test bst_merge_sort::test ... ok
[INFO] [stdout] test frog_jumps::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests problem_solving
[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" "040529fc79e8491996b48adf0711b7d6f41a39e9fb9b2a03590af93024e7c2d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "040529fc79e8491996b48adf0711b7d6f41a39e9fb9b2a03590af93024e7c2d3", kill_on_drop: false }`
[INFO] [stdout] 040529fc79e8491996b48adf0711b7d6f41a39e9fb9b2a03590af93024e7c2d3