[INFO] updating cached repository timglabisch/mysql_schema_change_rsu
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/timglabisch/mysql_schema_change_rsu
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/mysql_schema_change_rsu" "work/ex/beta-1.37-6/sources/1.36.0/gh/timglabisch/mysql_schema_change_rsu"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/timglabisch/mysql_schema_change_rsu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/mysql_schema_change_rsu" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/timglabisch/mysql_schema_change_rsu"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/timglabisch/mysql_schema_change_rsu'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1e0ad37339a6327c4cbe3f67e2e810eeb544e907
[INFO] sha for GitHub repo timglabisch/mysql_schema_change_rsu: 1e0ad37339a6327c4cbe3f67e2e810eeb544e907
[INFO] validating manifest of timglabisch/mysql_schema_change_rsu 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 timglabisch/mysql_schema_change_rsu 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 timglabisch/mysql_schema_change_rsu
[INFO] finished frobbing timglabisch/mysql_schema_change_rsu
[INFO] frobbed toml for timglabisch/mysql_schema_change_rsu written to work/ex/beta-1.37-6/sources/1.36.0/gh/timglabisch/mysql_schema_change_rsu/Cargo.toml
[INFO] started frobbing timglabisch/mysql_schema_change_rsu
[INFO] finished frobbing timglabisch/mysql_schema_change_rsu
[INFO] frobbed toml for timglabisch/mysql_schema_change_rsu written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/timglabisch/mysql_schema_change_rsu/Cargo.toml
[INFO] crate timglabisch/mysql_schema_change_rsu 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 timglabisch/mysql_schema_change_rsu 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-0/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/timglabisch/mysql_schema_change_rsu:/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] 79fc25bd5475957b5da7ed2e638d686129e62ee3d48222ae5643a8d4844ce20d
[INFO] running `"docker" "start" "-a" "79fc25bd5475957b5da7ed2e638d686129e62ee3d48222ae5643a8d4844ce20d"`
[INFO] [stderr]    Compiling serde v1.0.16
[INFO] [stderr]    Compiling bufstream v0.1.3
[INFO] [stderr]    Compiling atoi v0.2.2
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling nix v0.9.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling twox-hash v1.1.0
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.16
[INFO] [stderr]    Compiling serde_json v1.0.5
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling mysql_common v0.2.0
[INFO] [stderr]    Compiling mysql v12.0.3
[INFO] [stderr]    Compiling mysql_schema_change_rsu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/config.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         file.read_to_string(&mut buf);
[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 52.24s
[INFO] running `"docker" "inspect" "79fc25bd5475957b5da7ed2e638d686129e62ee3d48222ae5643a8d4844ce20d"`
[INFO] running `"docker" "rm" "-f" "79fc25bd5475957b5da7ed2e638d686129e62ee3d48222ae5643a8d4844ce20d"`
[INFO] [stdout] 79fc25bd5475957b5da7ed2e638d686129e62ee3d48222ae5643a8d4844ce20d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/timglabisch/mysql_schema_change_rsu:/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] e3692751bea86059cfa6529884a5778353be9b5c20a34a8175a19b74e7e0f5f2
[INFO] running `"docker" "start" "-a" "e3692751bea86059cfa6529884a5778353be9b5c20a34a8175a19b74e7e0f5f2"`
[INFO] [stderr]    Compiling mysql_schema_change_rsu v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/config.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |         file.read_to_string(&mut buf);
[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 1.44s
[INFO] running `"docker" "inspect" "e3692751bea86059cfa6529884a5778353be9b5c20a34a8175a19b74e7e0f5f2"`
[INFO] running `"docker" "rm" "-f" "e3692751bea86059cfa6529884a5778353be9b5c20a34a8175a19b74e7e0f5f2"`
[INFO] [stdout] e3692751bea86059cfa6529884a5778353be9b5c20a34a8175a19b74e7e0f5f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/timglabisch/mysql_schema_change_rsu:/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] 2edc7b7e86314083677144cecd56aadbb4f91d74352f091e04cf176b68450e95
[INFO] running `"docker" "start" "-a" "2edc7b7e86314083677144cecd56aadbb4f91d74352f091e04cf176b68450e95"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mysql_schema_change_rsu-37d634f67697e789
[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" "2edc7b7e86314083677144cecd56aadbb4f91d74352f091e04cf176b68450e95"`
[INFO] running `"docker" "rm" "-f" "2edc7b7e86314083677144cecd56aadbb4f91d74352f091e04cf176b68450e95"`
[INFO] [stdout] 2edc7b7e86314083677144cecd56aadbb4f91d74352f091e04cf176b68450e95