[INFO] cloning repository https://github.com/thallada/ferret
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thallada/ferret" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthallada%2Fferret", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthallada%2Fferret'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e3cbe2972cf55d07b546e9bdb67c5e49eaf4ea7
[INFO] testing thallada/ferret against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthallada%2Fferret" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thallada/ferret on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thallada/ferret
[INFO] finished tweaking git repo https://github.com/thallada/ferret
[INFO] tweaked toml for git repo https://github.com/thallada/ferret written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/thallada/ferret already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded selectors v0.20.0
[INFO] [stderr]   Downloaded cssparser v0.24.1
[INFO] [stderr]   Downloaded enum-map-derive v0.4.0
[INFO] [stderr]   Downloaded reexport-proc-macro v1.0.5
[INFO] [stderr]   Downloaded cursive v0.9.2
[INFO] [stderr]   Downloaded scraper v0.8.1
[INFO] [stderr]   Downloaded syn v0.15.19
[INFO] [stderr]   Downloaded liner v0.4.4
[INFO] [stderr]   Downloaded markup5ever v0.7.3
[INFO] [stderr]   Downloaded enum-map v0.4.1
[INFO] [stderr]   Downloaded string_cache v0.3.0
[INFO] [stderr]   Downloaded enumset v0.3.14
[INFO] [stderr]   Downloaded html5ever-atoms v0.1.3
[INFO] [stderr]   Downloaded bytecount v0.1.7
[INFO] [stderr]   Downloaded html2text v0.1.8
[INFO] [stderr]   Downloaded proc-macro2 v0.4.21
[INFO] [stderr]   Downloaded html5ever v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8523e07aee8246904f8eb652ec0436a091a20eb06fc193d618ec3291c0fe1493
[INFO] running `Command { std: "docker" "start" "-a" "8523e07aee8246904f8eb652ec0436a091a20eb06fc193d618ec3291c0fe1493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8523e07aee8246904f8eb652ec0436a091a20eb06fc193d618ec3291c0fe1493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8523e07aee8246904f8eb652ec0436a091a20eb06fc193d618ec3291c0fe1493", kill_on_drop: false }`
[INFO] [stdout] 8523e07aee8246904f8eb652ec0436a091a20eb06fc193d618ec3291c0fe1493
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2bf459404c947b25ffa7cae458568e787595c6b800704136149c221e3546e331
[INFO] running `Command { std: "docker" "start" "-a" "2bf459404c947b25ffa7cae458568e787595c6b800704136149c221e3546e331", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.21
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling lazycell v1.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling num-traits v0.1.42
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling string v0.1.1
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling utf-8 v0.7.4
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling encoding_rs v0.8.10
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling array-macro v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling reexport-proc-macro v1.0.5
[INFO] [stderr]    Compiling arc-swap v0.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.2.0
[INFO] [stderr]    Compiling ego-tree v0.5.0
[INFO] [stderr]    Compiling bytecount v0.1.7
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling crossbeam-utils v0.6.0
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling utf-8 v0.6.0
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling rand v0.3.20
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling base64 v0.9.0
[INFO] [stderr]    Compiling idna v0.1.4
[INFO] [stderr]    Compiling signal-hook v0.1.5
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling bytes v0.4.10
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling futf v0.1.3
[INFO] [stderr]    Compiling liner v0.4.4
[INFO] [stderr]    Compiling crossbeam-deque v0.6.2
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling http v0.1.13
[INFO] [stderr]    Compiling url v1.6.0
[INFO] [stderr]    Compiling tokio-current-thread v0.1.3
[INFO] [stdout] error[E0503]: cannot use `self.key_bindings` because it was mutably borrowed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/liner-0.4.4/src/context.rs:97:19
[INFO] [stdout]    |
[INFO] [stdout] 96 |             let ed = try!(Editor::new_with_init_buffer(stdout, prompt, self, buffer));
[INFO] [stdout]    |                                                                        ---- borrow of `*self` occurs here
[INFO] [stdout] 97 |             match self.key_bindings {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^ use of borrowed `*self`
[INFO] [stdout] 98 |                 KeyBindings::Emacs => Self::handle_keys(keymap::Emacs::new(ed), handler),
[INFO] [stdout] 99 |                 KeyBindings::Vi => Self::handle_keys(keymap::Vi::new(ed), handler),
[INFO] [stdout]    |                                                                      -- borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tokio-timer v0.2.7
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0503`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `liner` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.6.0/src/form_urlencoded.rs:261:40
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stdout]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2bf459404c947b25ffa7cae458568e787595c6b800704136149c221e3546e331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf459404c947b25ffa7cae458568e787595c6b800704136149c221e3546e331", kill_on_drop: false }`
[INFO] [stdout] 2bf459404c947b25ffa7cae458568e787595c6b800704136149c221e3546e331