[INFO] cloning repository https://github.com/jiangzh1206/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jiangzh1206/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiangzh1206%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiangzh1206%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39128e6a457e26435ae3c2e07b538ccdf6f52abb
[INFO] testing jiangzh1206/rust_learning against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjiangzh1206%2Frust_learning" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jiangzh1206/rust_learning on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jiangzh1206/rust_learning
[INFO] finished tweaking git repo https://github.com/jiangzh1206/rust_learning
[INFO] tweaked toml for git repo https://github.com/jiangzh1206/rust_learning written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/jiangzh1206/rust_learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4519dcc3bd11d1204d0b96f672d2cc4bf2425fee13253f58f24e474ef1c642ca
[INFO] running `Command { std: "docker" "start" "-a" "4519dcc3bd11d1204d0b96f672d2cc4bf2425fee13253f58f24e474ef1c642ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4519dcc3bd11d1204d0b96f672d2cc4bf2425fee13253f58f24e474ef1c642ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4519dcc3bd11d1204d0b96f672d2cc4bf2425fee13253f58f24e474ef1c642ca", kill_on_drop: false }`
[INFO] [stdout] 4519dcc3bd11d1204d0b96f672d2cc4bf2425fee13253f58f24e474ef1c642ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 673c4832ba06b5fb78cba750b1e9b8d34ea8e752bd57a1c8a36d99004aa1af8b
[INFO] running `Command { std: "docker" "start" "-a" "673c4832ba06b5fb78cba750b1e9b8d34ea8e752bd57a1c8a36d99004aa1af8b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling data_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `shell_sort`
[INFO] [stdout]  --> src/sort/shell.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn shell_sort(arr: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_oddnums`
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_oddnums(arr: &[i32])->(i32,i32){
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.87s
[INFO] running `Command { std: "docker" "inspect" "673c4832ba06b5fb78cba750b1e9b8d34ea8e752bd57a1c8a36d99004aa1af8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673c4832ba06b5fb78cba750b1e9b8d34ea8e752bd57a1c8a36d99004aa1af8b", kill_on_drop: false }`
[INFO] [stdout] 673c4832ba06b5fb78cba750b1e9b8d34ea8e752bd57a1c8a36d99004aa1af8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cb0b4f779b1b8ff780883dc05c0fb6574b30afb49841ccdf4a862611999669c
[INFO] running `Command { std: "docker" "start" "-a" "0cb0b4f779b1b8ff780883dc05c0fb6574b30afb49841ccdf4a862611999669c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling data_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `shell_sort`
[INFO] [stdout]  --> src/sort/shell.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn shell_sort(arr: &mut [i32]) {
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_oddnums`
[INFO] [stdout]   --> src/utils.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn print_oddnums(arr: &[i32])->(i32,i32){
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "0cb0b4f779b1b8ff780883dc05c0fb6574b30afb49841ccdf4a862611999669c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb0b4f779b1b8ff780883dc05c0fb6574b30afb49841ccdf4a862611999669c", kill_on_drop: false }`
[INFO] [stdout] 0cb0b4f779b1b8ff780883dc05c0fb6574b30afb49841ccdf4a862611999669c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c045a33671a19eda27f02df6acb4886ced550a9ef71227b54ca8c4dcc4b619eb
[INFO] running `Command { std: "docker" "start" "-a" "c045a33671a19eda27f02df6acb4886ced550a9ef71227b54ca8c4dcc4b619eb", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `shell_sort`
[INFO] [stderr]  --> src/sort/shell.rs:7:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn shell_sort(arr: &mut [i32]) {
[INFO] [stderr]   |        ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_oddnums`
[INFO] [stderr]   --> src/utils.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn print_oddnums(arr: &[i32])->(i32,i32){
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `data_struct` (bin "data_struct" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/data_struct-8b4b06fa70bcc108)
[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" "c045a33671a19eda27f02df6acb4886ced550a9ef71227b54ca8c4dcc4b619eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c045a33671a19eda27f02df6acb4886ced550a9ef71227b54ca8c4dcc4b619eb", kill_on_drop: false }`
[INFO] [stdout] c045a33671a19eda27f02df6acb4886ced550a9ef71227b54ca8c4dcc4b619eb