[INFO] updating cached repository modulus-os/driputils
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/modulus-os/driputils
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/modulus-os/driputils" "work/ex/beta-1.37-6/sources/1.36.0/gh/modulus-os/driputils"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/modulus-os/driputils'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/modulus-os/driputils" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/modulus-os/driputils"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/modulus-os/driputils'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 28760dba66461af0af912f64b15ea6b34b94ce7c
[INFO] sha for GitHub repo modulus-os/driputils: 28760dba66461af0af912f64b15ea6b34b94ce7c
[INFO] validating manifest of modulus-os/driputils 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 modulus-os/driputils 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 modulus-os/driputils
[INFO] finished frobbing modulus-os/driputils
[INFO] frobbed toml for modulus-os/driputils written to work/ex/beta-1.37-6/sources/1.36.0/gh/modulus-os/driputils/Cargo.toml
[INFO] started frobbing modulus-os/driputils
[INFO] finished frobbing modulus-os/driputils
[INFO] frobbed toml for modulus-os/driputils written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/modulus-os/driputils/Cargo.toml
[INFO] crate modulus-os/driputils 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/modulus-os/driputils/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 modulus-os/driputils 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-4/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/modulus-os/driputils:/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] e3b1b90765b2776fdbf1c9b5cf127dd4ed21291ae08bb9003af330384de91d26
[INFO] running `"docker" "start" "-a" "e3b1b90765b2776fdbf1c9b5cf127dd4ed21291ae08bb9003af330384de91d26"`
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.0
[INFO] [stderr]    Compiling driputils v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/drip.rs:84:2
[INFO] [stderr]    |
[INFO] [stderr] 84 |     f.unwrap().read_to_string(&mut file);
[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 4.81s
[INFO] running `"docker" "inspect" "e3b1b90765b2776fdbf1c9b5cf127dd4ed21291ae08bb9003af330384de91d26"`
[INFO] running `"docker" "rm" "-f" "e3b1b90765b2776fdbf1c9b5cf127dd4ed21291ae08bb9003af330384de91d26"`
[INFO] [stdout] e3b1b90765b2776fdbf1c9b5cf127dd4ed21291ae08bb9003af330384de91d26
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/modulus-os/driputils:/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] a4ca4f4c8b3578855ebc3bee1d8dc2e9cafbbc27c64c52629d3baa6efad19899
[INFO] running `"docker" "start" "-a" "a4ca4f4c8b3578855ebc3bee1d8dc2e9cafbbc27c64c52629d3baa6efad19899"`
[INFO] [stderr]    Compiling driputils v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/drip.rs:84:2
[INFO] [stderr]    |
[INFO] [stderr] 84 |     f.unwrap().read_to_string(&mut file);
[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 0.93s
[INFO] running `"docker" "inspect" "a4ca4f4c8b3578855ebc3bee1d8dc2e9cafbbc27c64c52629d3baa6efad19899"`
[INFO] running `"docker" "rm" "-f" "a4ca4f4c8b3578855ebc3bee1d8dc2e9cafbbc27c64c52629d3baa6efad19899"`
[INFO] [stdout] a4ca4f4c8b3578855ebc3bee1d8dc2e9cafbbc27c64c52629d3baa6efad19899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/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/modulus-os/driputils:/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] 983f0c1990aa1db0222560479f2cd930a1f17478ee1f4e4fd735d1bb82d8e0b4
[INFO] running `"docker" "start" "-a" "983f0c1990aa1db0222560479f2cd930a1f17478ee1f4e4fd735d1bb82d8e0b4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/driputils-4e4e1af45362149c
[INFO] [stderr]      Running /opt/crater/target/debug/deps/drip-81ee4a82f31604d9
[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] [stdout] 
[INFO] [stderr]    Doc-tests driputils
[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] [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" "983f0c1990aa1db0222560479f2cd930a1f17478ee1f4e4fd735d1bb82d8e0b4"`
[INFO] running `"docker" "rm" "-f" "983f0c1990aa1db0222560479f2cd930a1f17478ee1f4e4fd735d1bb82d8e0b4"`
[INFO] [stdout] 983f0c1990aa1db0222560479f2cd930a1f17478ee1f4e4fd735d1bb82d8e0b4