[INFO] updating cached repository romatthe/TinyDB
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/romatthe/TinyDB
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/romatthe/TinyDB" "work/ex/beta-1.37-6/sources/1.36.0/gh/romatthe/TinyDB"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/romatthe/TinyDB'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/romatthe/TinyDB" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/romatthe/TinyDB"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/romatthe/TinyDB'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 204e73e64eb0ea174d06e8010b0f8cf8197d7e3e
[INFO] sha for GitHub repo romatthe/TinyDB: 204e73e64eb0ea174d06e8010b0f8cf8197d7e3e
[INFO] validating manifest of romatthe/TinyDB on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of romatthe/TinyDB on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing romatthe/TinyDB
[INFO] finished frobbing romatthe/TinyDB
[INFO] frobbed toml for romatthe/TinyDB written to work/ex/beta-1.37-6/sources/1.36.0/gh/romatthe/TinyDB/Cargo.toml
[INFO] started frobbing romatthe/TinyDB
[INFO] finished frobbing romatthe/TinyDB
[INFO] frobbed toml for romatthe/TinyDB written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/romatthe/TinyDB/Cargo.toml
[INFO] crate romatthe/TinyDB already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing romatthe/TinyDB against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/romatthe/TinyDB:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8db111e47e608f7d092805bc90aa14972749322e50cb4675509fbc157c57153e
[INFO] running `"docker" "start" "-a" "8db111e47e608f7d092805bc90aa14972749322e50cb4675509fbc157c57153e"`
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling built v0.2.3
[INFO] [stderr]    Compiling tinydb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     run_repl();
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.47s
[INFO] running `"docker" "inspect" "8db111e47e608f7d092805bc90aa14972749322e50cb4675509fbc157c57153e"`
[INFO] running `"docker" "rm" "-f" "8db111e47e608f7d092805bc90aa14972749322e50cb4675509fbc157c57153e"`
[INFO] [stdout] 8db111e47e608f7d092805bc90aa14972749322e50cb4675509fbc157c57153e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/romatthe/TinyDB:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ce95fe73cfe8b3a28c92191ce0445f26539e11821a279098779fc596bb9578f3
[INFO] running `"docker" "start" "-a" "ce95fe73cfe8b3a28c92191ce0445f26539e11821a279098779fc596bb9578f3"`
[INFO] [stderr]    Compiling tinydb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     run_repl();
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `"docker" "inspect" "ce95fe73cfe8b3a28c92191ce0445f26539e11821a279098779fc596bb9578f3"`
[INFO] running `"docker" "rm" "-f" "ce95fe73cfe8b3a28c92191ce0445f26539e11821a279098779fc596bb9578f3"`
[INFO] [stdout] ce95fe73cfe8b3a28c92191ce0445f26539e11821a279098779fc596bb9578f3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/romatthe/TinyDB:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 355b4db330977f2f678bead9f5d7a5b7bb015197da0887f81d62c3f7cf136c63
[INFO] running `"docker" "start" "-a" "355b4db330977f2f678bead9f5d7a5b7bb015197da0887f81d62c3f7cf136c63"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tinydb-2f761b1db254de59
[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" "355b4db330977f2f678bead9f5d7a5b7bb015197da0887f81d62c3f7cf136c63"`
[INFO] running `"docker" "rm" "-f" "355b4db330977f2f678bead9f5d7a5b7bb015197da0887f81d62c3f7cf136c63"`
[INFO] [stdout] 355b4db330977f2f678bead9f5d7a5b7bb015197da0887f81d62c3f7cf136c63