[INFO] crate battery-ffi 0.7.4 is already in cache
[INFO] testing battery-ffi-0.7.4 against 1.38.0 for beta-1.39-1
[INFO] extracting crate battery-ffi 0.7.4 into work/builds/worker-3/source
[INFO] validating manifest of crates.io crate battery-ffi 0.7.4 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate battery-ffi 0.7.4
[INFO] finished tweaking crates.io crate battery-ffi 0.7.4
[INFO] tweaked toml for crates.io crate battery-ffi 0.7.4 written to work/builds/worker-3/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 3b590bd3dcc77c2287140dab3ebc4f3b24308a204505512fdec112f86561138f
[INFO] running `"docker" "start" "-a" "3b590bd3dcc77c2287140dab3ebc4f3b24308a204505512fdec112f86561138f"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cbindgen v0.8.7
[INFO] [stderr]    Compiling battery v0.7.4
[INFO] [stderr]    Compiling uom v0.23.1
[INFO] [stderr]    Compiling battery-ffi v0.7.4 (/opt/rustwide/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 21.82s
[INFO] running `"docker" "inspect" "3b590bd3dcc77c2287140dab3ebc4f3b24308a204505512fdec112f86561138f"`
[INFO] running `"docker" "rm" "-f" "3b590bd3dcc77c2287140dab3ebc4f3b24308a204505512fdec112f86561138f"`
[INFO] [stdout] 3b590bd3dcc77c2287140dab3ebc4f3b24308a204505512fdec112f86561138f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] dd388454572b5fffad07a288c36b67d360f3228d5cbb2d0c92deceacdfa4f025
[INFO] running `"docker" "start" "-a" "dd388454572b5fffad07a288c36b67d360f3228d5cbb2d0c92deceacdfa4f025"`
[INFO] [stderr]    Compiling battery-ffi v0.7.4 (/opt/rustwide/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 1.32s
[INFO] running `"docker" "inspect" "dd388454572b5fffad07a288c36b67d360f3228d5cbb2d0c92deceacdfa4f025"`
[INFO] running `"docker" "rm" "-f" "dd388454572b5fffad07a288c36b67d360f3228d5cbb2d0c92deceacdfa4f025"`
[INFO] [stdout] dd388454572b5fffad07a288c36b67d360f3228d5cbb2d0c92deceacdfa4f025
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 2d5ba748077791f600e0b87e82cfa365849f7e49c67a9b6e68a6a8c4cc3632d3
[INFO] running `"docker" "start" "-a" "2d5ba748077791f600e0b87e82cfa365849f7e49c67a9b6e68a6a8c4cc3632d3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/battery_ffi-2fe50329d9cf5605
[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" "2d5ba748077791f600e0b87e82cfa365849f7e49c67a9b6e68a6a8c4cc3632d3"`
[INFO] running `"docker" "rm" "-f" "2d5ba748077791f600e0b87e82cfa365849f7e49c67a9b6e68a6a8c4cc3632d3"`
[INFO] [stdout] 2d5ba748077791f600e0b87e82cfa365849f7e49c67a9b6e68a6a8c4cc3632d3