[INFO] crate i2cdev 0.4.2 is already in cache
[INFO] testing i2cdev-0.4.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate i2cdev 0.4.2 into work/builds/worker-7/source
[INFO] validating manifest of crates.io crate i2cdev 0.4.2 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 i2cdev 0.4.2
[INFO] finished tweaking crates.io crate i2cdev 0.4.2
[INFO] tweaked toml for crates.io crate i2cdev 0.4.2 written to work/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 3f966d51d5b60858524e0d697238c036f4fe63b0cc49b7fb5baaeb6c8dea0e1e
[INFO] running `"docker" "start" "-a" "3f966d51d5b60858524e0d697238c036f4fe63b0cc49b7fb5baaeb6c8dea0e1e"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling i2cdev v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/linux.rs:77:32
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "3f966d51d5b60858524e0d697238c036f4fe63b0cc49b7fb5baaeb6c8dea0e1e"`
[INFO] running `"docker" "rm" "-f" "3f966d51d5b60858524e0d697238c036f4fe63b0cc49b7fb5baaeb6c8dea0e1e"`
[INFO] [stdout] 3f966d51d5b60858524e0d697238c036f4fe63b0cc49b7fb5baaeb6c8dea0e1e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] 9f8ad82ec43d763d5559c96613858b2905b430f2550078012400a983b05e9b40
[INFO] running `"docker" "start" "-a" "9f8ad82ec43d763d5559c96613858b2905b430f2550078012400a983b05e9b40"`
[INFO] [stderr]    Compiling i2cdev v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/linux.rs:77:32
[INFO] [stderr]    |
[INFO] [stderr] 77 |     fn cause(&self) -> Option<&Error> {
[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]   --> examples/nunchuck.rs:56:36
[INFO] [stderr]    |
[INFO] [stderr] 56 |         fn cause(&self) -> Option<&Error> {
[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]    --> examples/sensors.rs:304:30
[INFO] [stderr]     |
[INFO] [stderr] 304 |                 i2cdev: &mut I2CDevice<Error = E>,
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn I2CDevice<Error = E>`
[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]    --> examples/sensors.rs:321:30
[INFO] [stderr]     |
[INFO] [stderr] 321 |                 i2cdev: &mut I2CDevice<Error = E>,
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn I2CDevice<Error = E>`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `"docker" "inspect" "9f8ad82ec43d763d5559c96613858b2905b430f2550078012400a983b05e9b40"`
[INFO] running `"docker" "rm" "-f" "9f8ad82ec43d763d5559c96613858b2905b430f2550078012400a983b05e9b40"`
[INFO] [stdout] 9f8ad82ec43d763d5559c96613858b2905b430f2550078012400a983b05e9b40
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/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] b4a2ff7334a1ba85495082b83a7c8d4194f80ab45fe15cd09038b061e00667f2
[INFO] running `"docker" "start" "-a" "b4a2ff7334a1ba85495082b83a7c8d4194f80ab45fe15cd09038b061e00667f2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/i2cdev-aefcb22a5ff54ece
[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] [stderr]    Doc-tests i2cdev
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b4a2ff7334a1ba85495082b83a7c8d4194f80ab45fe15cd09038b061e00667f2"`
[INFO] running `"docker" "rm" "-f" "b4a2ff7334a1ba85495082b83a7c8d4194f80ab45fe15cd09038b061e00667f2"`
[INFO] [stdout] b4a2ff7334a1ba85495082b83a7c8d4194f80ab45fe15cd09038b061e00667f2