[INFO] crate thumbsdbkit 1.0.1 is already in cache
[INFO] extracting crate thumbsdbkit 1.0.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/thumbsdbkit/1.0.1
[INFO] extracting crate thumbsdbkit 1.0.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/thumbsdbkit/1.0.1
[INFO] validating manifest of thumbsdbkit-1.0.1 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 thumbsdbkit-1.0.1 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 thumbsdbkit-1.0.1
[INFO] finished frobbing thumbsdbkit-1.0.1
[INFO] frobbed toml for thumbsdbkit-1.0.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/thumbsdbkit/1.0.1/Cargo.toml
[INFO] started frobbing thumbsdbkit-1.0.1
[INFO] finished frobbing thumbsdbkit-1.0.1
[INFO] frobbed toml for thumbsdbkit-1.0.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/thumbsdbkit/1.0.1/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] 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 thumbsdbkit-1.0.1 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-4/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/thumbsdbkit/1.0.1:/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] ffba591805a94dd40d78da9d7c188492b55903e2d943686f4ceb599a98ecdc33
[INFO] running `"docker" "start" "-a" "ffba591805a94dd40d78da9d7c188492b55903e2d943686f4ceb599a98ecdc33"`
[INFO] [stderr]    Compiling ole v0.1.15
[INFO] [stderr]    Compiling thumbsdb v0.1.2
[INFO] [stderr]    Compiling thumbsdbkit v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kit.rs:22:23
[INFO] [stderr]    |
[INFO] [stderr] 22 |     -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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/error.rs:31:30
[INFO] [stderr]    |
[INFO] [stderr] 31 |   fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.26s
[INFO] running `"docker" "inspect" "ffba591805a94dd40d78da9d7c188492b55903e2d943686f4ceb599a98ecdc33"`
[INFO] running `"docker" "rm" "-f" "ffba591805a94dd40d78da9d7c188492b55903e2d943686f4ceb599a98ecdc33"`
[INFO] [stdout] ffba591805a94dd40d78da9d7c188492b55903e2d943686f4ceb599a98ecdc33
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/thumbsdbkit/1.0.1:/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] 28b9aa2e74a47f2b888b1965eb2da55a554c1b2d155ba8a97a7b1ba8c7b4b46b
[INFO] running `"docker" "start" "-a" "28b9aa2e74a47f2b888b1965eb2da55a554c1b2d155ba8a97a7b1ba8c7b4b46b"`
[INFO] [stderr]    Compiling thumbsdbkit v1.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/kit.rs:22:23
[INFO] [stderr]    |
[INFO] [stderr] 22 |     -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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/error.rs:31:30
[INFO] [stderr]    |
[INFO] [stderr] 31 |   fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "28b9aa2e74a47f2b888b1965eb2da55a554c1b2d155ba8a97a7b1ba8c7b4b46b"`
[INFO] running `"docker" "rm" "-f" "28b9aa2e74a47f2b888b1965eb2da55a554c1b2d155ba8a97a7b1ba8c7b4b46b"`
[INFO] [stdout] 28b9aa2e74a47f2b888b1965eb2da55a554c1b2d155ba8a97a7b1ba8c7b4b46b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/thumbsdbkit/1.0.1:/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] 4be14cf548a1cec69be0e7f4db83bf445f5deedf983b9b536e97bc3f7de7208f
[INFO] running `"docker" "start" "-a" "4be14cf548a1cec69be0e7f4db83bf445f5deedf983b9b536e97bc3f7de7208f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/thumbsdbkit-8ba0f0f9e58ee149
[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" "4be14cf548a1cec69be0e7f4db83bf445f5deedf983b9b536e97bc3f7de7208f"`
[INFO] running `"docker" "rm" "-f" "4be14cf548a1cec69be0e7f4db83bf445f5deedf983b9b536e97bc3f7de7208f"`
[INFO] [stdout] 4be14cf548a1cec69be0e7f4db83bf445f5deedf983b9b536e97bc3f7de7208f