[INFO] crate battery-ffi 0.7.4 is already in cache
[INFO] extracting crate battery-ffi 0.7.4 into work/ex/beta-1.38-1/sources/1.37.0/reg/battery-ffi/0.7.4
[INFO] extracting crate battery-ffi 0.7.4 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/battery-ffi/0.7.4
[INFO] validating manifest of battery-ffi-0.7.4 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 battery-ffi-0.7.4 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 battery-ffi-0.7.4
[INFO] finished frobbing battery-ffi-0.7.4
[INFO] frobbed toml for battery-ffi-0.7.4 written to work/ex/beta-1.38-1/sources/1.37.0/reg/battery-ffi/0.7.4/Cargo.toml
[INFO] started frobbing battery-ffi-0.7.4
[INFO] finished frobbing battery-ffi-0.7.4
[INFO] frobbed toml for battery-ffi-0.7.4 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/battery-ffi/0.7.4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing battery-ffi-0.7.4 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/battery-ffi/0.7.4:/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] 0f1d6004c8070655ade0083046250d101f605743e347d7387370bc8e9fb2ac51
[INFO] running `"docker" "start" "-a" "0f1d6004c8070655ade0083046250d101f605743e347d7387370bc8e9fb2ac51"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling battery v0.7.4
[INFO] [stderr]    Compiling uom v0.23.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling cbindgen v0.8.7
[INFO] [stderr]    Compiling battery-ffi v0.7.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/errors.rs:7:43
[INFO] [stderr]   |
[INFO] [stderr] 7 |     static LAST_ERROR: RefCell<Option<Box<Error>>> = RefCell::new(None);
[INFO] [stderr]   |                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/errors.rs:7:43
[INFO] [stderr]   |
[INFO] [stderr] 7 |     static LAST_ERROR: RefCell<Option<Box<Error>>> = RefCell::new(None);
[INFO] [stderr]   |                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:16:40
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn take_last_error() -> Option<Box<Error>> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused boxed `battery_lib::Batteries` that must be used
[INFO] [stderr]   --> src/iterator.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     Box::from_raw(ptr);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: iterator adaptors are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.73s
[INFO] running `"docker" "inspect" "0f1d6004c8070655ade0083046250d101f605743e347d7387370bc8e9fb2ac51"`
[INFO] running `"docker" "rm" "-f" "0f1d6004c8070655ade0083046250d101f605743e347d7387370bc8e9fb2ac51"`
[INFO] [stdout] 0f1d6004c8070655ade0083046250d101f605743e347d7387370bc8e9fb2ac51
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/battery-ffi/0.7.4:/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] e91acfa03d017afde7c2caf4bf3f1242676c9c75da92feb347e3a3f90836a1c0
[INFO] running `"docker" "start" "-a" "e91acfa03d017afde7c2caf4bf3f1242676c9c75da92feb347e3a3f90836a1c0"`
[INFO] [stderr]    Compiling battery-ffi v0.7.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/errors.rs:7:43
[INFO] [stderr]   |
[INFO] [stderr] 7 |     static LAST_ERROR: RefCell<Option<Box<Error>>> = RefCell::new(None);
[INFO] [stderr]   |                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/errors.rs:7:43
[INFO] [stderr]   |
[INFO] [stderr] 7 |     static LAST_ERROR: RefCell<Option<Box<Error>>> = RefCell::new(None);
[INFO] [stderr]   |                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:16:40
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn take_last_error() -> Option<Box<Error>> {
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused boxed `battery_lib::Batteries` that must be used
[INFO] [stderr]   --> src/iterator.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     Box::from_raw(ptr);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: iterator adaptors are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "e91acfa03d017afde7c2caf4bf3f1242676c9c75da92feb347e3a3f90836a1c0"`
[INFO] running `"docker" "rm" "-f" "e91acfa03d017afde7c2caf4bf3f1242676c9c75da92feb347e3a3f90836a1c0"`
[INFO] [stdout] e91acfa03d017afde7c2caf4bf3f1242676c9c75da92feb347e3a3f90836a1c0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/battery-ffi/0.7.4:/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] 25625dc938973eecf49599578d1361cc380e429416c45b242d76d6ff95056fb1
[INFO] running `"docker" "start" "-a" "25625dc938973eecf49599578d1361cc380e429416c45b242d76d6ff95056fb1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/battery_ffi-bdecadfe6dd24577
[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" "25625dc938973eecf49599578d1361cc380e429416c45b242d76d6ff95056fb1"`
[INFO] running `"docker" "rm" "-f" "25625dc938973eecf49599578d1361cc380e429416c45b242d76d6ff95056fb1"`
[INFO] [stdout] 25625dc938973eecf49599578d1361cc380e429416c45b242d76d6ff95056fb1