[INFO] crate nafsy 0.0.1 is already in cache
[INFO] extracting crate nafsy 0.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/nafsy/0.0.1
[INFO] extracting crate nafsy 0.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nafsy/0.0.1
[INFO] validating manifest of nafsy-0.0.1 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 nafsy-0.0.1 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 nafsy-0.0.1
[INFO] finished frobbing nafsy-0.0.1
[INFO] frobbed toml for nafsy-0.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/nafsy/0.0.1/Cargo.toml
[INFO] started frobbing nafsy-0.0.1
[INFO] finished frobbing nafsy-0.0.1
[INFO] frobbed toml for nafsy-0.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nafsy/0.0.1/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 nafsy-0.0.1 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/nafsy/0.0.1:/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] d42977c6b3045e84d7b594292be23b4b4c7dc5cbee69e9f01de96cb3ab2353a2
[INFO] running `"docker" "start" "-a" "d42977c6b3045e84d7b594292be23b4b4c7dc5cbee69e9f01de96cb3ab2353a2"`
[INFO] [stderr]    Compiling nafsy v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]  --> src/types.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     value: u32,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `"docker" "inspect" "d42977c6b3045e84d7b594292be23b4b4c7dc5cbee69e9f01de96cb3ab2353a2"`
[INFO] running `"docker" "rm" "-f" "d42977c6b3045e84d7b594292be23b4b4c7dc5cbee69e9f01de96cb3ab2353a2"`
[INFO] [stdout] d42977c6b3045e84d7b594292be23b4b4c7dc5cbee69e9f01de96cb3ab2353a2
[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/nafsy/0.0.1:/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] 1a25e8381866d911e1dfa8709caf600d7a00ea2f2766dc74eba7cfa40293adf5
[INFO] running `"docker" "start" "-a" "1a25e8381866d911e1dfa8709caf600d7a00ea2f2766dc74eba7cfa40293adf5"`
[INFO] [stderr]    Compiling nafsy v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `value`
[INFO] [stderr]  --> src/types.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     value: u32,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `"docker" "inspect" "1a25e8381866d911e1dfa8709caf600d7a00ea2f2766dc74eba7cfa40293adf5"`
[INFO] running `"docker" "rm" "-f" "1a25e8381866d911e1dfa8709caf600d7a00ea2f2766dc74eba7cfa40293adf5"`
[INFO] [stdout] 1a25e8381866d911e1dfa8709caf600d7a00ea2f2766dc74eba7cfa40293adf5
[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/nafsy/0.0.1:/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] a245a77b1b82f22dfa9de8efed2444889d55b9e2e3c45141a516c0e8d311fee2
[INFO] running `"docker" "start" "-a" "a245a77b1b82f22dfa9de8efed2444889d55b9e2e3c45141a516c0e8d311fee2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/nafsy-c3acc7188c66ee1e
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test utils::tests::it_reduces_one ... ok
[INFO] [stdout] test utils::tests::it_adds_one ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nafsy
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/utils.rs - utils::fns::minus_one (line 19) ... ok
[INFO] [stdout] test src/utils.rs - utils::fns::plus_one (line 6) ... 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" "a245a77b1b82f22dfa9de8efed2444889d55b9e2e3c45141a516c0e8d311fee2"`
[INFO] running `"docker" "rm" "-f" "a245a77b1b82f22dfa9de8efed2444889d55b9e2e3c45141a516c0e8d311fee2"`
[INFO] [stdout] a245a77b1b82f22dfa9de8efed2444889d55b9e2e3c45141a516c0e8d311fee2