[INFO] updating cached repository ojensen5115/iron-fileserver
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ojensen5115/iron-fileserver
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ojensen5115/iron-fileserver" "work/ex/beta-1.38-1/sources/1.37.0/gh/ojensen5115/iron-fileserver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ojensen5115/iron-fileserver'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ojensen5115/iron-fileserver" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ojensen5115/iron-fileserver"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ojensen5115/iron-fileserver'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 861752bfec23c710fd6978a3e7efe8b3af6c9ebe
[INFO] sha for GitHub repo ojensen5115/iron-fileserver: 861752bfec23c710fd6978a3e7efe8b3af6c9ebe
[INFO] validating manifest of ojensen5115/iron-fileserver 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 ojensen5115/iron-fileserver 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 ojensen5115/iron-fileserver
[INFO] finished frobbing ojensen5115/iron-fileserver
[INFO] frobbed toml for ojensen5115/iron-fileserver written to work/ex/beta-1.38-1/sources/1.37.0/gh/ojensen5115/iron-fileserver/Cargo.toml
[INFO] started frobbing ojensen5115/iron-fileserver
[INFO] finished frobbing ojensen5115/iron-fileserver
[INFO] frobbed toml for ojensen5115/iron-fileserver written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ojensen5115/iron-fileserver/Cargo.toml
[INFO] crate ojensen5115/iron-fileserver already has a lockfile, it will not be regenerated
[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 ojensen5115/iron-fileserver 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ojensen5115/iron-fileserver:/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] 37aefd8d066e7123648e00c09ff3b2753217f5cc207e4a5614a173841f846ea6
[INFO] running `"docker" "start" "-a" "37aefd8d066e7123648e00c09ff3b2753217f5cc207e4a5614a173841f846ea6"`
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling idna v0.1.0 (https://github.com/servo/rust-url#24f6e6b6)
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling cookie v0.2.5
[INFO] [stderr]    Compiling hyper v0.9.18
[INFO] [stderr]    Compiling url v1.4.0 (https://github.com/servo/rust-url#24f6e6b6)
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust-url-3ddac0958e207dae/24f6e6b/src/form_urlencoded.rs:246:40
[INFO] [stderr]     |
[INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 246 |     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 iron v0.4.0
[INFO] [stderr]    Compiling mount v0.2.1
[INFO] [stderr]    Compiling staticfile v0.3.1
[INFO] [stderr]    Compiling fileserver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.77s
[INFO] running `"docker" "inspect" "37aefd8d066e7123648e00c09ff3b2753217f5cc207e4a5614a173841f846ea6"`
[INFO] running `"docker" "rm" "-f" "37aefd8d066e7123648e00c09ff3b2753217f5cc207e4a5614a173841f846ea6"`
[INFO] [stdout] 37aefd8d066e7123648e00c09ff3b2753217f5cc207e4a5614a173841f846ea6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ojensen5115/iron-fileserver:/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] d9badcb27af4f47b0021d724450626973a33701ebccb3962ea4dfe2bbfacdea2
[INFO] running `"docker" "start" "-a" "d9badcb27af4f47b0021d724450626973a33701ebccb3962ea4dfe2bbfacdea2"`
[INFO] [stderr]    Compiling fileserver v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "d9badcb27af4f47b0021d724450626973a33701ebccb3962ea4dfe2bbfacdea2"`
[INFO] running `"docker" "rm" "-f" "d9badcb27af4f47b0021d724450626973a33701ebccb3962ea4dfe2bbfacdea2"`
[INFO] [stdout] d9badcb27af4f47b0021d724450626973a33701ebccb3962ea4dfe2bbfacdea2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/ojensen5115/iron-fileserver:/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] 930ebd33e6beb6b1bc8fa02a91aa22a175b2c1e4850a18f0464568764e24ccdb
[INFO] running `"docker" "start" "-a" "930ebd33e6beb6b1bc8fa02a91aa22a175b2c1e4850a18f0464568764e24ccdb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fileserver-5e4f1f4adc183345
[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" "930ebd33e6beb6b1bc8fa02a91aa22a175b2c1e4850a18f0464568764e24ccdb"`
[INFO] running `"docker" "rm" "-f" "930ebd33e6beb6b1bc8fa02a91aa22a175b2c1e4850a18f0464568764e24ccdb"`
[INFO] [stdout] 930ebd33e6beb6b1bc8fa02a91aa22a175b2c1e4850a18f0464568764e24ccdb