[INFO] updating cached repository nuclearfurnace/synchrotron
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nuclearfurnace/synchrotron
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nuclearfurnace/synchrotron" "work/ex/beta-1.38-1/sources/1.37.0/gh/nuclearfurnace/synchrotron"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nuclearfurnace/synchrotron'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nuclearfurnace/synchrotron" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nuclearfurnace/synchrotron"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nuclearfurnace/synchrotron'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5cd3eb37809b14c13529f8f471155e4cdb339437
[INFO] sha for GitHub repo nuclearfurnace/synchrotron: 5cd3eb37809b14c13529f8f471155e4cdb339437
[INFO] validating manifest of nuclearfurnace/synchrotron 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 nuclearfurnace/synchrotron 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 nuclearfurnace/synchrotron
[INFO] finished frobbing nuclearfurnace/synchrotron
[INFO] frobbed toml for nuclearfurnace/synchrotron written to work/ex/beta-1.38-1/sources/1.37.0/gh/nuclearfurnace/synchrotron/Cargo.toml
[INFO] started frobbing nuclearfurnace/synchrotron
[INFO] finished frobbing nuclearfurnace/synchrotron
[INFO] frobbed toml for nuclearfurnace/synchrotron written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nuclearfurnace/synchrotron/Cargo.toml
[INFO] crate nuclearfurnace/synchrotron 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nuclearfurnace/synchrotron 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nuclearfurnace/synchrotron:/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] e2133ecd92bb733b2321ea50c9973382c14f1f7d4396072edae7d5fc947975c2
[INFO] running `"docker" "start" "-a" "e2133ecd92bb733b2321ea50c9973382c14f1f7d4396072edae7d5fc947975c2"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling synchrotron v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling arc-swap v0.3.7
[INFO] [stderr]    Compiling tower v0.1.0 (https://github.com/nuclearfurnace/tower#afeed66a)
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling tokio-sync v0.1.2
[INFO] [stderr]    Compiling tower-direct-service v0.1.0 (https://github.com/nuclearfurnace/tower#afeed66a)
[INFO] [stderr]    Compiling tower-service v0.2.0 (https://github.com/nuclearfurnace/tower#afeed66a)
[INFO] [stderr]    Compiling futures-turnstyle v3.0.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling quanta v0.1.0
[INFO] [stderr]    Compiling generic-array v0.8.3
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling btoi v0.4.0
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling signal-hook v0.1.8
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling flate2 v1.0.6
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling tokio-executor v0.1.6
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling headers-derive v0.1.0
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling tokio-io v0.1.11
[INFO] [stderr]    Compiling http v0.1.16
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling pruefung v0.2.1
[INFO] [stderr]    Compiling tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling tower-buffer v0.1.0 (https://github.com/nuclearfurnace/tower#afeed66a)
[INFO] [stderr]    Compiling nom v4.2.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling tungstenite v0.6.1
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling phf_macros v0.7.24
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr]    Compiling tokio-evacuate v1.1.1
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling hdrhistogram v6.1.1
[INFO] [stderr]    Compiling config v0.9.2
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.11
[INFO] [stderr]    Compiling slog-scope v4.1.1
[INFO] [stderr]    Compiling hotmic v0.7.1
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling slog-stdlog v3.0.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling headers-core v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.16
[INFO] [stderr]    Compiling tokio-fs v0.1.5
[INFO] [stderr]    Compiling headers v0.2.1
[INFO] [stderr]    Compiling tokio v0.1.15
[INFO] [stderr]    Compiling tokio-io-pool v0.1.5
[INFO] [stderr]    Compiling hyper v0.12.24
[INFO] [stderr]    Compiling warp v0.1.13
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | #![feature(test)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | #![feature(nll)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | #![feature(never_type)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | #![feature(proc_macro_hygiene)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/distributor/mod.rs:40:61
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn configure_distributor(dist_type: &str) -> Result<Box<Distributor + Send + Sync>, CreationError> {
[INFO] [stderr]    |                                                             ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Distributor + Send + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/errors.rs:87:32
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn cause(&self) -> Option<&error::Error> { None }
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Error` is imported redundantly
[INFO] [stderr]   --> src/backend/errors.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |     error::{self, Error},
[INFO] [stderr]    |                   ----- the item `Error` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 92 |         use std::error::Error;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/hasher/mod.rs:33:56
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn configure_hasher(hash_type: &str) -> Result<Box<KeyHasher + Send + Sync>, CreationError> {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyHasher + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pool.rs:37:34
[INFO] [stderr]    |
[INFO] [stderr] 37 | type DistributorFutureSafe = Box<Distributor + Send + 'static>;
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Distributor + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/pool.rs:38:32
[INFO] [stderr]    |
[INFO] [stderr] 38 | type KeyHasherFutureSafe = Box<KeyHasher + Send + 'static>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn KeyHasher + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/processor/errors.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |     fn cause(&self) -> Option<&error::Error> { None }
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/processor/mod.rs:55:40
[INFO] [stderr]    |
[INFO] [stderr] 55 |     fn get_error_message(&self, _: Box<Error>) -> Self::Message;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/backend/redis.rs:63:40
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn get_error_message(&self, e: Box<Error>) -> Self::Message { RedisMessage::from_error(e) }
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/listener.rs:48:33
[INFO] [stderr]    |
[INFO] [stderr] 48 | type GenericRuntimeFuture = Box<Future<Item = (), Error = ()> + Send + 'static>;
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = (), Error = ()> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/protocol/errors.rs:53:32
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn cause(&self) -> Option<&error::Error> { None }
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/protocol/redis/mod.rs:141:30
[INFO] [stderr]     |
[INFO] [stderr] 141 |     pub fn from_error(e: Box<std::error::Error>) -> RedisMessage {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/routing/errors.rs:62:32
[INFO] [stderr]    |
[INFO] [stderr] 62 |     fn cause(&self) -> Option<&error::Error> { None }
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util/helpers.rs:26:16
[INFO] [stderr]    |
[INFO] [stderr] 26 |     inner: Box<Future<Item = TcpStream, Error = ProtocolError> + Send + 'static>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = TcpStream, Error = ProtocolError> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `synchrotron`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e2133ecd92bb733b2321ea50c9973382c14f1f7d4396072edae7d5fc947975c2"`
[INFO] running `"docker" "rm" "-f" "e2133ecd92bb733b2321ea50c9973382c14f1f7d4396072edae7d5fc947975c2"`
[INFO] [stdout] e2133ecd92bb733b2321ea50c9973382c14f1f7d4396072edae7d5fc947975c2