[INFO] updating cached repository gpierzynski/sorting
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gpierzynski/sorting
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gpierzynski/sorting" "work/ex/beta-1.38-1/sources/1.37.0/gh/gpierzynski/sorting"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gpierzynski/sorting'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gpierzynski/sorting" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gpierzynski/sorting"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gpierzynski/sorting'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0e71a168fb88c8f6e6861bb53f0398f219dc3a65
[INFO] sha for GitHub repo gpierzynski/sorting: 0e71a168fb88c8f6e6861bb53f0398f219dc3a65
[INFO] validating manifest of gpierzynski/sorting 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 gpierzynski/sorting 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 gpierzynski/sorting
[INFO] finished frobbing gpierzynski/sorting
[INFO] frobbed toml for gpierzynski/sorting written to work/ex/beta-1.38-1/sources/1.37.0/gh/gpierzynski/sorting/Cargo.toml
[INFO] started frobbing gpierzynski/sorting
[INFO] finished frobbing gpierzynski/sorting
[INFO] frobbed toml for gpierzynski/sorting written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gpierzynski/sorting/Cargo.toml
[INFO] crate gpierzynski/sorting 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing gpierzynski/sorting 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gpierzynski/sorting:/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] 118cf3ff508e5cdd2125a8bbfdd5250faf32f015425c5d19d7e63bf12b04391f
[INFO] running `"docker" "start" "-a" "118cf3ff508e5cdd2125a8bbfdd5250faf32f015425c5d19d7e63bf12b04391f"`
[INFO] [stderr]    Compiling sorts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:17:36
[INFO] [stderr]    |
[INFO] [stderr] 17 |     quick::quick_sort(&mut sortme, 0, (a.len() as i32));
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/quick.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut x = a[(r-1) as usize];
[INFO] [stderr]   |         ----^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/quick.rs:25:6
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut q: i32;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "118cf3ff508e5cdd2125a8bbfdd5250faf32f015425c5d19d7e63bf12b04391f"`
[INFO] running `"docker" "rm" "-f" "118cf3ff508e5cdd2125a8bbfdd5250faf32f015425c5d19d7e63bf12b04391f"`
[INFO] [stdout] 118cf3ff508e5cdd2125a8bbfdd5250faf32f015425c5d19d7e63bf12b04391f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gpierzynski/sorting:/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] 94e590b709b7f120fcdd73caa6da74d585c4e1d231f58a552cc2515f2a5ed151
[INFO] running `"docker" "start" "-a" "94e590b709b7f120fcdd73caa6da74d585c4e1d231f58a552cc2515f2a5ed151"`
[INFO] [stderr]    Compiling sorts v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:17:36
[INFO] [stderr]    |
[INFO] [stderr] 17 |     quick::quick_sort(&mut sortme, 0, (a.len() as i32));
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/quick.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut x = a[(r-1) as usize];
[INFO] [stderr]   |         ----^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/quick.rs:25:6
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut q: i32;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "94e590b709b7f120fcdd73caa6da74d585c4e1d231f58a552cc2515f2a5ed151"`
[INFO] running `"docker" "rm" "-f" "94e590b709b7f120fcdd73caa6da74d585c4e1d231f58a552cc2515f2a5ed151"`
[INFO] [stdout] 94e590b709b7f120fcdd73caa6da74d585c4e1d231f58a552cc2515f2a5ed151
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gpierzynski/sorting:/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] a0a262be7a492ad973d7a6e19757241dd903b96bbd0055324f02e198ecc7102a
[INFO] running `"docker" "start" "-a" "a0a262be7a492ad973d7a6e19757241dd903b96bbd0055324f02e198ecc7102a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sorts-fe2ccf48e4f56f6d
[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" "a0a262be7a492ad973d7a6e19757241dd903b96bbd0055324f02e198ecc7102a"`
[INFO] running `"docker" "rm" "-f" "a0a262be7a492ad973d7a6e19757241dd903b96bbd0055324f02e198ecc7102a"`
[INFO] [stdout] a0a262be7a492ad973d7a6e19757241dd903b96bbd0055324f02e198ecc7102a