[INFO] updating cached repository grncdr/mmr
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grncdr/mmr
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grncdr/mmr" "work/ex/beta-1.38-1/sources/1.37.0/gh/grncdr/mmr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/grncdr/mmr'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grncdr/mmr" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grncdr/mmr"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grncdr/mmr'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6f5dc7f7682de2c90374d29d7be55096a4045d0c
[INFO] sha for GitHub repo grncdr/mmr: 6f5dc7f7682de2c90374d29d7be55096a4045d0c
[INFO] validating manifest of grncdr/mmr 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 grncdr/mmr 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 grncdr/mmr
[INFO] finished frobbing grncdr/mmr
[INFO] frobbed toml for grncdr/mmr written to work/ex/beta-1.38-1/sources/1.37.0/gh/grncdr/mmr/Cargo.toml
[INFO] started frobbing grncdr/mmr
[INFO] finished frobbing grncdr/mmr
[INFO] frobbed toml for grncdr/mmr written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grncdr/mmr/Cargo.toml
[INFO] crate grncdr/mmr already has a lockfile, it will not be regenerated
[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 grncdr/mmr 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-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grncdr/mmr:/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] fa04320d7acff981453f24708612a2c2929e854fe97ff43b08e64f8d6277998c
[INFO] running `"docker" "start" "-a" "fa04320d7acff981453f24708612a2c2929e854fe97ff43b08e64f8d6277998c"`
[INFO] [stderr]    Compiling winapi v0.3.4
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stderr]    Compiling errno v0.2.3
[INFO] [stderr]    Compiling clap v2.31.1
[INFO] [stderr]    Compiling exec v0.3.1
[INFO] [stderr]    Compiling utime v0.1.3
[INFO] [stderr]    Compiling mmr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:90:32
[INFO] [stderr]    |
[INFO] [stderr] 90 |     fn cause(&self) -> Option<&ErrorTrait> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn ErrorTrait`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:92:38
[INFO] [stderr]    |
[INFO] [stderr] 92 |             &Error::Exec(ref e) => e.cause(),
[INFO] [stderr]    |                                      ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:93:36
[INFO] [stderr]    |
[INFO] [stderr] 93 |             &Error::IO(ref e) => e.cause(),
[INFO] [stderr]    |                                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:94:39
[INFO] [stderr]    |
[INFO] [stderr] 94 |             &Error::Clock(ref e) => e.cause(),
[INFO] [stderr]    |                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.07s
[INFO] running `"docker" "inspect" "fa04320d7acff981453f24708612a2c2929e854fe97ff43b08e64f8d6277998c"`
[INFO] running `"docker" "rm" "-f" "fa04320d7acff981453f24708612a2c2929e854fe97ff43b08e64f8d6277998c"`
[INFO] [stdout] fa04320d7acff981453f24708612a2c2929e854fe97ff43b08e64f8d6277998c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grncdr/mmr:/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] 2c6b1a0f65146bfe6335128f9fdd9ca14ff6898d1e4795ceca136f9f8344d763
[INFO] running `"docker" "start" "-a" "2c6b1a0f65146bfe6335128f9fdd9ca14ff6898d1e4795ceca136f9f8344d763"`
[INFO] [stderr]    Compiling mmr v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:90:32
[INFO] [stderr]    |
[INFO] [stderr] 90 |     fn cause(&self) -> Option<&ErrorTrait> {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn ErrorTrait`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:92:38
[INFO] [stderr]    |
[INFO] [stderr] 92 |             &Error::Exec(ref e) => e.cause(),
[INFO] [stderr]    |                                      ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:93:36
[INFO] [stderr]    |
[INFO] [stderr] 93 |             &Error::IO(ref e) => e.cause(),
[INFO] [stderr]    |                                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/main.rs:94:39
[INFO] [stderr]    |
[INFO] [stderr] 94 |             &Error::Clock(ref e) => e.cause(),
[INFO] [stderr]    |                                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `"docker" "inspect" "2c6b1a0f65146bfe6335128f9fdd9ca14ff6898d1e4795ceca136f9f8344d763"`
[INFO] running `"docker" "rm" "-f" "2c6b1a0f65146bfe6335128f9fdd9ca14ff6898d1e4795ceca136f9f8344d763"`
[INFO] [stdout] 2c6b1a0f65146bfe6335128f9fdd9ca14ff6898d1e4795ceca136f9f8344d763
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grncdr/mmr:/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] e4f879aa4f5c0c5933bee72dcb895dec1040f3a53f717108db3790ddf3604ac7
[INFO] running `"docker" "start" "-a" "e4f879aa4f5c0c5933bee72dcb895dec1040f3a53f717108db3790ddf3604ac7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mmr-fe8086d362933146
[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" "e4f879aa4f5c0c5933bee72dcb895dec1040f3a53f717108db3790ddf3604ac7"`
[INFO] running `"docker" "rm" "-f" "e4f879aa4f5c0c5933bee72dcb895dec1040f3a53f717108db3790ddf3604ac7"`
[INFO] [stdout] e4f879aa4f5c0c5933bee72dcb895dec1040f3a53f717108db3790ddf3604ac7