[INFO] updating cached repository henryroyal/cli-pairwise-product
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/henryroyal/cli-pairwise-product
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/henryroyal/cli-pairwise-product" "work/ex/beta-1.38-1/sources/1.37.0/gh/henryroyal/cli-pairwise-product"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/henryroyal/cli-pairwise-product'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/henryroyal/cli-pairwise-product" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/henryroyal/cli-pairwise-product"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/henryroyal/cli-pairwise-product'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ca0c34ddc07fa7bdd3ccf1c454e2ea7708909991
[INFO] sha for GitHub repo henryroyal/cli-pairwise-product: ca0c34ddc07fa7bdd3ccf1c454e2ea7708909991
[INFO] validating manifest of henryroyal/cli-pairwise-product 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 henryroyal/cli-pairwise-product 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 henryroyal/cli-pairwise-product
[INFO] finished frobbing henryroyal/cli-pairwise-product
[INFO] frobbed toml for henryroyal/cli-pairwise-product written to work/ex/beta-1.38-1/sources/1.37.0/gh/henryroyal/cli-pairwise-product/Cargo.toml
[INFO] started frobbing henryroyal/cli-pairwise-product
[INFO] finished frobbing henryroyal/cli-pairwise-product
[INFO] frobbed toml for henryroyal/cli-pairwise-product written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/henryroyal/cli-pairwise-product/Cargo.toml
[INFO] crate henryroyal/cli-pairwise-product 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 henryroyal/cli-pairwise-product 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-3/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/henryroyal/cli-pairwise-product:/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] 21018a2aade1e89821c77251aa25972e4fa9ceb5baf30f87f78be429a9726dce
[INFO] running `"docker" "start" "-a" "21018a2aade1e89821c77251aa25972e4fa9ceb5baf30f87f78be429a9726dce"`
[INFO] [stderr]    Compiling pairwise_product v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `value` is never read
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut value = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     std::io::stdin().read_line(&mut stdin);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "21018a2aade1e89821c77251aa25972e4fa9ceb5baf30f87f78be429a9726dce"`
[INFO] running `"docker" "rm" "-f" "21018a2aade1e89821c77251aa25972e4fa9ceb5baf30f87f78be429a9726dce"`
[INFO] [stdout] 21018a2aade1e89821c77251aa25972e4fa9ceb5baf30f87f78be429a9726dce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/henryroyal/cli-pairwise-product:/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] bb7ddd9112a3952b82bcc7f2a6f81eff8b3ce30e80064ab5fd68511e6fb89a7d
[INFO] running `"docker" "start" "-a" "bb7ddd9112a3952b82bcc7f2a6f81eff8b3ce30e80064ab5fd68511e6fb89a7d"`
[INFO] [stderr]    Compiling pairwise_product v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `value` is never read
[INFO] [stderr]   --> src/main.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let mut value = 0;
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     std::io::stdin().read_line(&mut stdin);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "bb7ddd9112a3952b82bcc7f2a6f81eff8b3ce30e80064ab5fd68511e6fb89a7d"`
[INFO] running `"docker" "rm" "-f" "bb7ddd9112a3952b82bcc7f2a6f81eff8b3ce30e80064ab5fd68511e6fb89a7d"`
[INFO] [stdout] bb7ddd9112a3952b82bcc7f2a6f81eff8b3ce30e80064ab5fd68511e6fb89a7d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/henryroyal/cli-pairwise-product:/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] 83ceabd6f9dd5a298089674ab8c6d174ec73d35dea26ddf73799c8dd787ef5f6
[INFO] running `"docker" "start" "-a" "83ceabd6f9dd5a298089674ab8c6d174ec73d35dea26ddf73799c8dd787ef5f6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pairwise_product-ab92f76b767dcab4
[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" "83ceabd6f9dd5a298089674ab8c6d174ec73d35dea26ddf73799c8dd787ef5f6"`
[INFO] running `"docker" "rm" "-f" "83ceabd6f9dd5a298089674ab8c6d174ec73d35dea26ddf73799c8dd787ef5f6"`
[INFO] [stdout] 83ceabd6f9dd5a298089674ab8c6d174ec73d35dea26ddf73799c8dd787ef5f6