[INFO] updating cached repository PotatoFormula/sort_practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PotatoFormula/sort_practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PotatoFormula/sort_practice" "work/ex/beta-1.38-1/sources/1.37.0/gh/PotatoFormula/sort_practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/PotatoFormula/sort_practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PotatoFormula/sort_practice" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PotatoFormula/sort_practice"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PotatoFormula/sort_practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8728d127a9447b36e3d4bb412267d2dd06eaeeb5
[INFO] sha for GitHub repo PotatoFormula/sort_practice: 8728d127a9447b36e3d4bb412267d2dd06eaeeb5
[INFO] validating manifest of PotatoFormula/sort_practice on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of PotatoFormula/sort_practice on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing PotatoFormula/sort_practice
[INFO] finished frobbing PotatoFormula/sort_practice
[INFO] frobbed toml for PotatoFormula/sort_practice written to work/ex/beta-1.38-1/sources/1.37.0/gh/PotatoFormula/sort_practice/Cargo.toml
[INFO] started frobbing PotatoFormula/sort_practice
[INFO] finished frobbing PotatoFormula/sort_practice
[INFO] frobbed toml for PotatoFormula/sort_practice written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/PotatoFormula/sort_practice/Cargo.toml
[INFO] crate PotatoFormula/sort_practice already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing PotatoFormula/sort_practice against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PotatoFormula/sort_practice:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9658a8d195f222bb9029f9cf04a7815a87382ac61c6350eda84eac97e2cc15f6
[INFO] running `"docker" "start" "-a" "9658a8d195f222bb9029f9cf04a7815a87382ac61c6350eda84eac97e2cc15f6"`
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling sort_practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn run<T: PartialOrd + Clone> (collection: &[T]) -> Vec<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn run(v: &mut Vec<i64>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn run<T: PartialOrd + Clone + /*Debug*/> (collection: &[T]) -> Vec<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.50s
[INFO] running `"docker" "inspect" "9658a8d195f222bb9029f9cf04a7815a87382ac61c6350eda84eac97e2cc15f6"`
[INFO] running `"docker" "rm" "-f" "9658a8d195f222bb9029f9cf04a7815a87382ac61c6350eda84eac97e2cc15f6"`
[INFO] [stdout] 9658a8d195f222bb9029f9cf04a7815a87382ac61c6350eda84eac97e2cc15f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PotatoFormula/sort_practice:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4edfbeb51d6b8761f6d05e96009e4100b6453b72033c2d54119a02c5081d3c84
[INFO] running `"docker" "start" "-a" "4edfbeb51d6b8761f6d05e96009e4100b6453b72033c2d54119a02c5081d3c84"`
[INFO] [stderr]    Compiling sort_practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn run<T: PartialOrd + Clone> (collection: &[T]) -> Vec<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn run(v: &mut Vec<i64>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn run<T: PartialOrd + Clone + /*Debug*/> (collection: &[T]) -> Vec<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "4edfbeb51d6b8761f6d05e96009e4100b6453b72033c2d54119a02c5081d3c84"`
[INFO] running `"docker" "rm" "-f" "4edfbeb51d6b8761f6d05e96009e4100b6453b72033c2d54119a02c5081d3c84"`
[INFO] [stdout] 4edfbeb51d6b8761f6d05e96009e4100b6453b72033c2d54119a02c5081d3c84
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/PotatoFormula/sort_practice:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b602ce2120a667f95b0c7f1722ac1aa60324827bc03005184d9ab889c9c56d7e
[INFO] running `"docker" "start" "-a" "b602ce2120a667f95b0c7f1722ac1aa60324827bc03005184d9ab889c9c56d7e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sort_practice-a0e1a26e97bc954c
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b602ce2120a667f95b0c7f1722ac1aa60324827bc03005184d9ab889c9c56d7e"`
[INFO] running `"docker" "rm" "-f" "b602ce2120a667f95b0c7f1722ac1aa60324827bc03005184d9ab889c9c56d7e"`
[INFO] [stdout] b602ce2120a667f95b0c7f1722ac1aa60324827bc03005184d9ab889c9c56d7e