[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/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/timglabisch/mysql_schema_change_rsu"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/timglabisch/mysql_schema_change_rsu'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/timglabisch/mysql_schema_change_rsu" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/timglabisch/mysql_schema_change_rsu"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/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 master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of timglabisch/mysql_schema_change_rsu on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "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/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking timglabisch/mysql_schema_change_rsu against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-4/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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=forbid" "-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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 868dd6cd460c84d956d8bd308a208328a10120fee4b9c520a4f42d8fd723b499
[INFO] running `"docker" "start" "-a" "868dd6cd460c84d956d8bd308a208328a10120fee4b9c520a4f42d8fd723b499"`
[INFO] [stderr]     Checking serde v1.0.16
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking atoi v0.2.2
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.16
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking twox-hash v1.1.0
[INFO] [stderr]     Checking serde_json v1.0.5
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking mysql_common v0.2.0
[INFO] [stderr]     Checking mysql v12.0.3
[INFO] [stderr]     Checking 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] 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 33.70s
[INFO] running `"docker" "inspect" "868dd6cd460c84d956d8bd308a208328a10120fee4b9c520a4f42d8fd723b499"`
[INFO] running `"docker" "rm" "-f" "868dd6cd460c84d956d8bd308a208328a10120fee4b9c520a4f42d8fd723b499"`
[INFO] [stdout] 868dd6cd460c84d956d8bd308a208328a10120fee4b9c520a4f42d8fd723b499