[INFO] updating cached repository boxofrox/sscce-future-is-buggy-01
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/boxofrox/sscce-future-is-buggy-01
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/boxofrox/sscce-future-is-buggy-01" "work/ex/beta-1.37-6/sources/1.36.0/gh/boxofrox/sscce-future-is-buggy-01"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/boxofrox/sscce-future-is-buggy-01'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/boxofrox/sscce-future-is-buggy-01" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/boxofrox/sscce-future-is-buggy-01"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/boxofrox/sscce-future-is-buggy-01'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c9405aec2a957a44e47ee2c5fcab32f46690ed53
[INFO] sha for GitHub repo boxofrox/sscce-future-is-buggy-01: c9405aec2a957a44e47ee2c5fcab32f46690ed53
[INFO] validating manifest of boxofrox/sscce-future-is-buggy-01 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 boxofrox/sscce-future-is-buggy-01 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 boxofrox/sscce-future-is-buggy-01
[INFO] finished frobbing boxofrox/sscce-future-is-buggy-01
[INFO] frobbed toml for boxofrox/sscce-future-is-buggy-01 written to work/ex/beta-1.37-6/sources/1.36.0/gh/boxofrox/sscce-future-is-buggy-01/Cargo.toml
[INFO] started frobbing boxofrox/sscce-future-is-buggy-01
[INFO] finished frobbing boxofrox/sscce-future-is-buggy-01
[INFO] frobbed toml for boxofrox/sscce-future-is-buggy-01 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/boxofrox/sscce-future-is-buggy-01/Cargo.toml
[INFO] crate boxofrox/sscce-future-is-buggy-01 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 boxofrox/sscce-future-is-buggy-01 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/boxofrox/sscce-future-is-buggy-01:/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] e5719ffbbf94cd1ef53ddf952a01c1559e5f34814b2b89280accaed8a5a59c73
[INFO] running `"docker" "start" "-a" "e5719ffbbf94cd1ef53ddf952a01c1559e5f34814b2b89280accaed8a5a59c73"`
[INFO] [stderr]    Compiling gcc v0.3.50
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling byteorder v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.4
[INFO] [stderr]    Compiling lazycell v0.4.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.4
[INFO] [stderr]    Compiling futures v0.1.14
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling serde v1.0.8
[INFO] [stderr]    Compiling itoa v0.3.1
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling dtoa v0.4.1
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling bitflags v0.8.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.3
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.29
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling time v0.1.37
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]    Compiling thread_local v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling mio v0.6.8
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling backtrace-sys v0.1.11
[INFO] [stderr]    Compiling idna v0.1.2
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling twox-hash v1.1.0
[INFO] [stderr]    Compiling chrono v0.3.1
[INFO] [stderr]    Compiling tokio-io v0.1.2
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling tokio-core v0.1.7
[INFO] [stderr]    Compiling url v1.4.1
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.4.1/src/form_urlencoded.rs:248:40
[INFO] [stderr]     |
[INFO] [stderr] 246 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 247 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 248 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_json v1.0.2
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling backtrace v0.3.2
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling mysql_async v0.9.3
[INFO] [stderr]    Compiling bug-test-01 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 20s
[INFO] running `"docker" "inspect" "e5719ffbbf94cd1ef53ddf952a01c1559e5f34814b2b89280accaed8a5a59c73"`
[INFO] running `"docker" "rm" "-f" "e5719ffbbf94cd1ef53ddf952a01c1559e5f34814b2b89280accaed8a5a59c73"`
[INFO] [stdout] e5719ffbbf94cd1ef53ddf952a01c1559e5f34814b2b89280accaed8a5a59c73
[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/boxofrox/sscce-future-is-buggy-01:/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] 3afd0b8a702b0b1232671e7fd120c484d0224aef6ad04d86675fc1c6bd11e74e
[INFO] running `"docker" "start" "-a" "3afd0b8a702b0b1232671e7fd120c484d0224aef6ad04d86675fc1c6bd11e74e"`
[INFO] [stderr]    Compiling bug-test-01 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "3afd0b8a702b0b1232671e7fd120c484d0224aef6ad04d86675fc1c6bd11e74e"`
[INFO] running `"docker" "rm" "-f" "3afd0b8a702b0b1232671e7fd120c484d0224aef6ad04d86675fc1c6bd11e74e"`
[INFO] [stdout] 3afd0b8a702b0b1232671e7fd120c484d0224aef6ad04d86675fc1c6bd11e74e
[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/boxofrox/sscce-future-is-buggy-01:/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] 5674f2c1bff4a749acc2c32612b32f88fd4e8acb7b7cdf65b50d5173fbca2502
[INFO] running `"docker" "start" "-a" "5674f2c1bff4a749acc2c32612b32f88fd4e8acb7b7cdf65b50d5173fbca2502"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bug_test_01-c31a318c9f3b4f6a
[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" "5674f2c1bff4a749acc2c32612b32f88fd4e8acb7b7cdf65b50d5173fbca2502"`
[INFO] running `"docker" "rm" "-f" "5674f2c1bff4a749acc2c32612b32f88fd4e8acb7b7cdf65b50d5173fbca2502"`
[INFO] [stdout] 5674f2c1bff4a749acc2c32612b32f88fd4e8acb7b7cdf65b50d5173fbca2502