[INFO] updating cached repository DCP-solved-with-Rust/dcp_00002
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DCP-solved-with-Rust/dcp_00002
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DCP-solved-with-Rust/dcp_00002" "work/ex/beta-1.37-6/sources/1.36.0/gh/DCP-solved-with-Rust/dcp_00002"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/DCP-solved-with-Rust/dcp_00002'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DCP-solved-with-Rust/dcp_00002" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DCP-solved-with-Rust/dcp_00002"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DCP-solved-with-Rust/dcp_00002'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8620acbdc85adbd9cf97c32bddc57681a9860515
[INFO] sha for GitHub repo DCP-solved-with-Rust/dcp_00002: 8620acbdc85adbd9cf97c32bddc57681a9860515
[INFO] validating manifest of DCP-solved-with-Rust/dcp_00002 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of DCP-solved-with-Rust/dcp_00002 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing DCP-solved-with-Rust/dcp_00002
[INFO] finished frobbing DCP-solved-with-Rust/dcp_00002
[INFO] frobbed toml for DCP-solved-with-Rust/dcp_00002 written to work/ex/beta-1.37-6/sources/1.36.0/gh/DCP-solved-with-Rust/dcp_00002/Cargo.toml
[INFO] started frobbing DCP-solved-with-Rust/dcp_00002
[INFO] finished frobbing DCP-solved-with-Rust/dcp_00002
[INFO] frobbed toml for DCP-solved-with-Rust/dcp_00002 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DCP-solved-with-Rust/dcp_00002/Cargo.toml
[INFO] crate DCP-solved-with-Rust/dcp_00002 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing DCP-solved-with-Rust/dcp_00002 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DCP-solved-with-Rust/dcp_00002:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] ec9aa79a6815966007c71df954a95ebdc978379ffcf518828bb66b1b270cd13b
[INFO] running `"docker" "start" "-a" "ec9aa79a6815966007c71df954a95ebdc978379ffcf518828bb66b1b270cd13b"`
[INFO] [stderr]    Compiling dcp_00002 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:16
[INFO] [stderr]    |
[INFO] [stderr] 71 |     for (&num, mut prod_i) in nums.iter().rev().zip(prod_right_side.iter_mut().rev())
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `"docker" "inspect" "ec9aa79a6815966007c71df954a95ebdc978379ffcf518828bb66b1b270cd13b"`
[INFO] running `"docker" "rm" "-f" "ec9aa79a6815966007c71df954a95ebdc978379ffcf518828bb66b1b270cd13b"`
[INFO] [stdout] ec9aa79a6815966007c71df954a95ebdc978379ffcf518828bb66b1b270cd13b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DCP-solved-with-Rust/dcp_00002:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9f224db325c643e1948b076ac4e594dbd0db2279bacd0ae55c52d574c92ec1be
[INFO] running `"docker" "start" "-a" "9f224db325c643e1948b076ac4e594dbd0db2279bacd0ae55c52d574c92ec1be"`
[INFO] [stderr]    Compiling dcp_00002 v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:71:16
[INFO] [stderr]    |
[INFO] [stderr] 71 |     for (&num, mut prod_i) in nums.iter().rev().zip(prod_right_side.iter_mut().rev())
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "9f224db325c643e1948b076ac4e594dbd0db2279bacd0ae55c52d574c92ec1be"`
[INFO] running `"docker" "rm" "-f" "9f224db325c643e1948b076ac4e594dbd0db2279bacd0ae55c52d574c92ec1be"`
[INFO] [stdout] 9f224db325c643e1948b076ac4e594dbd0db2279bacd0ae55c52d574c92ec1be
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/DCP-solved-with-Rust/dcp_00002:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] fea8c61af35d8538ffc43a99df1e23390c8d29d6266339ee423a21fb66e09052
[INFO] running `"docker" "start" "-a" "fea8c61af35d8538ffc43a99df1e23390c8d29d6266339ee423a21fb66e09052"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dcp_00002-b03798a466c1fcc2
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test given_example_one ... ok
[INFO] [stdout] test given_example_two ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fea8c61af35d8538ffc43a99df1e23390c8d29d6266339ee423a21fb66e09052"`
[INFO] running `"docker" "rm" "-f" "fea8c61af35d8538ffc43a99df1e23390c8d29d6266339ee423a21fb66e09052"`
[INFO] [stdout] fea8c61af35d8538ffc43a99df1e23390c8d29d6266339ee423a21fb66e09052