[INFO] crate boolexpr 0.1.0 is already in cache
[INFO] extracting crate boolexpr 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/boolexpr/0.1.0
[INFO] extracting crate boolexpr 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/boolexpr/0.1.0
[INFO] validating manifest of boolexpr-0.1.0 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 boolexpr-0.1.0 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 boolexpr-0.1.0
[INFO] finished frobbing boolexpr-0.1.0
[INFO] frobbed toml for boolexpr-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/boolexpr/0.1.0/Cargo.toml
[INFO] started frobbing boolexpr-0.1.0
[INFO] finished frobbing boolexpr-0.1.0
[INFO] frobbed toml for boolexpr-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/boolexpr/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 boolexpr-0.1.0 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/reg/boolexpr/0.1.0:/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] 898b721c0e182e4ddbc0bb870b26dc3f703845635a9c88657132d2314f9bdb25
[INFO] running `"docker" "start" "-a" "898b721c0e182e4ddbc0bb870b26dc3f703845635a9c88657132d2314f9bdb25"`
[INFO] [stderr]    Compiling boolexpr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Variable`
[INFO] [stderr]  --> src/lib.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Variable {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(name: &'static str, indices: Vec<usize>) -> Variable {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "898b721c0e182e4ddbc0bb870b26dc3f703845635a9c88657132d2314f9bdb25"`
[INFO] running `"docker" "rm" "-f" "898b721c0e182e4ddbc0bb870b26dc3f703845635a9c88657132d2314f9bdb25"`
[INFO] [stdout] 898b721c0e182e4ddbc0bb870b26dc3f703845635a9c88657132d2314f9bdb25
[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/reg/boolexpr/0.1.0:/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] 5176767852c7eab728b1eb937b6856525a859837c2f866262229990b8828de37
[INFO] running `"docker" "start" "-a" "5176767852c7eab728b1eb937b6856525a859837c2f866262229990b8828de37"`
[INFO] [stderr]    Compiling boolexpr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "5176767852c7eab728b1eb937b6856525a859837c2f866262229990b8828de37"`
[INFO] running `"docker" "rm" "-f" "5176767852c7eab728b1eb937b6856525a859837c2f866262229990b8828de37"`
[INFO] [stdout] 5176767852c7eab728b1eb937b6856525a859837c2f866262229990b8828de37
[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/reg/boolexpr/0.1.0:/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] bbbe9fd6cd83ed41983cac5f2665ba5da6b04c75328ef4b972130d4fd4b1d9c6
[INFO] running `"docker" "start" "-a" "bbbe9fd6cd83ed41983cac5f2665ba5da6b04c75328ef4b972130d4fd4b1d9c6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/boolexpr-741c558e1bec053b
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test var_to_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests boolexpr
[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" "bbbe9fd6cd83ed41983cac5f2665ba5da6b04c75328ef4b972130d4fd4b1d9c6"`
[INFO] running `"docker" "rm" "-f" "bbbe9fd6cd83ed41983cac5f2665ba5da6b04c75328ef4b972130d4fd4b1d9c6"`
[INFO] [stdout] bbbe9fd6cd83ed41983cac5f2665ba5da6b04c75328ef4b972130d4fd4b1d9c6