[INFO] updating cached repository Serdnad/Rust-sorts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Serdnad/Rust-sorts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Serdnad/Rust-sorts" "work/ex/beta-1.38-1/sources/1.37.0/gh/Serdnad/Rust-sorts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Serdnad/Rust-sorts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Serdnad/Rust-sorts" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Serdnad/Rust-sorts"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Serdnad/Rust-sorts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8f94824ad115066a0d41dae71e0e0136f1679795
[INFO] sha for GitHub repo Serdnad/Rust-sorts: 8f94824ad115066a0d41dae71e0e0136f1679795
[INFO] validating manifest of Serdnad/Rust-sorts 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 Serdnad/Rust-sorts 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 Serdnad/Rust-sorts
[INFO] finished frobbing Serdnad/Rust-sorts
[INFO] frobbed toml for Serdnad/Rust-sorts written to work/ex/beta-1.38-1/sources/1.37.0/gh/Serdnad/Rust-sorts/Cargo.toml
[INFO] started frobbing Serdnad/Rust-sorts
[INFO] finished frobbing Serdnad/Rust-sorts
[INFO] frobbed toml for Serdnad/Rust-sorts written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Serdnad/Rust-sorts/Cargo.toml
[INFO] crate Serdnad/Rust-sorts 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 Serdnad/Rust-sorts against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Serdnad/Rust-sorts:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ae7661f74cdec8fcf43937d2d9b994b2f682daa11ebc588a34989ee6329e71cd
[INFO] running `"docker" "start" "-a" "ae7661f74cdec8fcf43937d2d9b994b2f682daa11ebc588a34989ee6329e71cd"`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling sorts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `sort`
[INFO] [stderr]   --> src/sort.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn sort<T: num::Integer + Clone + Copy>(v: &mut Vec<T>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `median_index`
[INFO] [stderr]    --> src/sort.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | pub fn median_index<T: PartialOrd>(indices: &Vec<usize>, v: &[T]) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sorted_vec`
[INFO] [stderr]   --> src/main.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn sorted_vec(size: usize) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_vec`
[INFO] [stderr]   --> src/main.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn print_vec<T: std::fmt::Debug>(v: &Vec<T>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.85s
[INFO] running `"docker" "inspect" "ae7661f74cdec8fcf43937d2d9b994b2f682daa11ebc588a34989ee6329e71cd"`
[INFO] running `"docker" "rm" "-f" "ae7661f74cdec8fcf43937d2d9b994b2f682daa11ebc588a34989ee6329e71cd"`
[INFO] [stdout] ae7661f74cdec8fcf43937d2d9b994b2f682daa11ebc588a34989ee6329e71cd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Serdnad/Rust-sorts:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 052c59cd1e34a25a1aaa9d982ef60fb570bdc8316831a5ecd73bfc3fb284ff46
[INFO] running `"docker" "start" "-a" "052c59cd1e34a25a1aaa9d982ef60fb570bdc8316831a5ecd73bfc3fb284ff46"`
[INFO] [stderr]    Compiling sorts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `sort`
[INFO] [stderr]   --> src/sort.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn sort<T: num::Integer + Clone + Copy>(v: &mut Vec<T>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `median_index`
[INFO] [stderr]    --> src/sort.rs:163:1
[INFO] [stderr]     |
[INFO] [stderr] 163 | pub fn median_index<T: PartialOrd>(indices: &Vec<usize>, v: &[T]) -> usize {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sorted_vec`
[INFO] [stderr]   --> src/main.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | fn sorted_vec(size: usize) -> Vec<u8> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_vec`
[INFO] [stderr]   --> src/main.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn print_vec<T: std::fmt::Debug>(v: &Vec<T>) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `"docker" "inspect" "052c59cd1e34a25a1aaa9d982ef60fb570bdc8316831a5ecd73bfc3fb284ff46"`
[INFO] running `"docker" "rm" "-f" "052c59cd1e34a25a1aaa9d982ef60fb570bdc8316831a5ecd73bfc3fb284ff46"`
[INFO] [stdout] 052c59cd1e34a25a1aaa9d982ef60fb570bdc8316831a5ecd73bfc3fb284ff46
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Serdnad/Rust-sorts:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 3d66f1c3785c6a5dcc8792330bc2417e6b2827214b24f8da8dac79b3825bd5a1
[INFO] running `"docker" "start" "-a" "3d66f1c3785c6a5dcc8792330bc2417e6b2827214b24f8da8dac79b3825bd5a1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sorts-e878f0d5c3d736e2
[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" "3d66f1c3785c6a5dcc8792330bc2417e6b2827214b24f8da8dac79b3825bd5a1"`
[INFO] running `"docker" "rm" "-f" "3d66f1c3785c6a5dcc8792330bc2417e6b2827214b24f8da8dac79b3825bd5a1"`
[INFO] [stdout] 3d66f1c3785c6a5dcc8792330bc2417e6b2827214b24f8da8dac79b3825bd5a1