[INFO] crate tuple_storage 0.1.1 is already in cache
[INFO] extracting crate tuple_storage 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/tuple_storage/0.1.1
[INFO] extracting crate tuple_storage 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tuple_storage/0.1.1
[INFO] validating manifest of tuple_storage-0.1.1 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 tuple_storage-0.1.1 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 tuple_storage-0.1.1
[INFO] finished frobbing tuple_storage-0.1.1
[INFO] frobbed toml for tuple_storage-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tuple_storage/0.1.1/Cargo.toml
[INFO] started frobbing tuple_storage-0.1.1
[INFO] finished frobbing tuple_storage-0.1.1
[INFO] frobbed toml for tuple_storage-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tuple_storage/0.1.1/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 tuple_storage-0.1.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tuple_storage/0.1.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 3b345e733d4c10c9f94ec73207925d80693ec3a531701bafe3646240fa853c9d
[INFO] running `"docker" "start" "-a" "3b345e733d4c10c9f94ec73207925d80693ec3a531701bafe3646240fa853c9d"`
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling tuple_storage v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `"docker" "inspect" "3b345e733d4c10c9f94ec73207925d80693ec3a531701bafe3646240fa853c9d"`
[INFO] running `"docker" "rm" "-f" "3b345e733d4c10c9f94ec73207925d80693ec3a531701bafe3646240fa853c9d"`
[INFO] [stdout] 3b345e733d4c10c9f94ec73207925d80693ec3a531701bafe3646240fa853c9d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tuple_storage/0.1.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 770b2eb84668a27b0158350e0187fcfc4907eaa2368718e2c8daaf262184e034
[INFO] running `"docker" "start" "-a" "770b2eb84668a27b0158350e0187fcfc4907eaa2368718e2c8daaf262184e034"`
[INFO] [stderr]    Compiling tuple_storage v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/lib.rs:601:9
[INFO] [stderr]     |
[INFO] [stderr] 601 |         std::fs::write(dir.path().join("demo.ts"), &blob).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/lib.rs:657:9
[INFO] [stderr]     |
[INFO] [stderr] 657 |         std::fs::write(dir.path().join("demo.ts"), &blob).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/lib.rs:708:9
[INFO] [stderr]     |
[INFO] [stderr] 708 |         std::fs::write(dir.path().join("demo.ts"), &blob).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `"docker" "inspect" "770b2eb84668a27b0158350e0187fcfc4907eaa2368718e2c8daaf262184e034"`
[INFO] running `"docker" "rm" "-f" "770b2eb84668a27b0158350e0187fcfc4907eaa2368718e2c8daaf262184e034"`
[INFO] [stdout] 770b2eb84668a27b0158350e0187fcfc4907eaa2368718e2c8daaf262184e034
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tuple_storage/0.1.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 6594c600db73323cbf25f391beb8cc155eacd2e4f2b2d1fa48c81fba56ac7ca1
[INFO] running `"docker" "start" "-a" "6594c600db73323cbf25f391beb8cc155eacd2e4f2b2d1fa48c81fba56ac7ca1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tuple_storage-fbf587b7a770bf00
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test test::remove_sorted_all ... ok
[INFO] [stdout] test test::remove_first ... ok
[INFO] [stdout] test test::deserialize_empty ... ok
[INFO] [stdout] test test::remove_all ... ok
[INFO] [stdout] test test::insert_duplicate ... ok
[INFO] [stdout] test test::tuple_to_string ... ok
[INFO] [stdout] test test::remove_mid ... ok
[INFO] [stdout] test test::insert_sorted ... ok
[INFO] [stdout] test test::deserialize_one ... ok
[INFO] [stdout] test test::schema_to_string ... ok
[INFO] [stdout] test test::serialize_empty ... ok
[INFO] [stdout] test test::update_one ... ok
[INFO] [stdout] test test::serialize_one ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tuple_storage-f33b91ff2f7a95cc
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tuple_storage
[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] [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" "6594c600db73323cbf25f391beb8cc155eacd2e4f2b2d1fa48c81fba56ac7ca1"`
[INFO] running `"docker" "rm" "-f" "6594c600db73323cbf25f391beb8cc155eacd2e4f2b2d1fa48c81fba56ac7ca1"`
[INFO] [stdout] 6594c600db73323cbf25f391beb8cc155eacd2e4f2b2d1fa48c81fba56ac7ca1