[INFO] fetching crate osprey 0.4.4... [INFO] extracting crate osprey 0.4.4 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/osprey/0.4.4 [INFO] extracting crate osprey 0.4.4 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/osprey/0.4.4 [INFO] validating manifest of osprey-0.4.4 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of osprey-0.4.4 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing osprey-0.4.4 [INFO] finished frobbing osprey-0.4.4 [INFO] frobbed toml for osprey-0.4.4 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/osprey/0.4.4/Cargo.toml [INFO] started frobbing osprey-0.4.4 [INFO] finished frobbing osprey-0.4.4 [INFO] frobbed toml for osprey-0.4.4 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/osprey/0.4.4/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache lock [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded gluon_codegen v0.9.4 [INFO] [stderr] Downloaded codespan v0.1.3 [INFO] [stderr] Downloaded gluon_vm v0.9.4 [INFO] [stderr] Downloaded gluon v0.9.4 [INFO] [stderr] Downloaded gluon_base v0.9.4 [INFO] [stderr] Downloaded gluon_check v0.9.4 [INFO] [stderr] Downloaded codespan-reporting v0.1.4 [INFO] [stderr] Downloaded gluon_parser v0.9.4 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking osprey-0.4.4 against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-1/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/osprey/0.4.4:/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=forbid" "-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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 116cd450ce0134ebf3d8192b203755138b33a3e276c9c9d220b6aaef22d919bf [INFO] running `"docker" "start" "-a" "116cd450ce0134ebf3d8192b203755138b33a3e276c9c9d220b6aaef22d919bf"` [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling either v1.5.2 [INFO] [stderr] Compiling opaque-debug v0.2.2 [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling strsim v0.9.2 [INFO] [stderr] Compiling lalrpop-util v0.16.3 [INFO] [stderr] Compiling typed-arena v1.4.1 [INFO] [stderr] Compiling collect-mac v0.1.0 [INFO] [stderr] Compiling anymap v0.12.1 [INFO] [stderr] Checking rpds v0.5.0 [INFO] [stderr] Compiling gluon_vm v0.9.4 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking union-find v0.3.2 [INFO] [stderr] Checking frunk_core v0.2.4 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Compiling block-padding v0.1.4 [INFO] [stderr] Checking pretty v0.5.2 [INFO] [stderr] Compiling walkdir v2.2.8 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling bit-set v0.5.1 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Compiling generic-array v0.12.0 [INFO] [stderr] Compiling scroll v0.9.2 [INFO] [stderr] Compiling ordered-float v1.0.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling scroll_derive v0.9.5 [INFO] [stderr] Compiling gluon_codegen v0.9.4 [INFO] [stderr] Checking error-chain v0.12.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.0 [INFO] [stderr] Compiling failure v0.1.5 [INFO] [stderr] Checking codespan v0.1.3 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Checking codespan-reporting v0.1.4 [INFO] [stderr] Checking gluon_base v0.9.4 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Checking goblin v0.0.17 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Checking gluon_check v0.9.4 [INFO] [stderr] Compiling gluon v0.9.4 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Checking falcon v0.4.4 [INFO] [stderr] Compiling lalrpop v0.16.3 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gluon_vm-0.9.4/src/stack.rs:502:9 [INFO] [stderr] | [INFO] [stderr] 493 | impl<'a: 'b, 'b, S> StackFrame<'b, S> [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 502 | self.stack [INFO] [stderr] | ^^^^^^^^^^ returning this value requires that `*self.stack` is borrowed for `'b` [INFO] [stderr] 503 | } [INFO] [stderr] | - here, drop of `self` needs exclusive access to `*self.stack`, because the type `stack::StackFrame<'_, S>` implements the `Drop` trait [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] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gluon_vm-0.9.4/src/stack.rs:584:28 [INFO] [stderr] | [INFO] [stderr] 493 | impl<'a: 'b, 'b, S> StackFrame<'b, S> [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 584 | return Err(self.stack); [INFO] [stderr] | ----^^^^^^^^^^- returning this value requires that `*self.stack` is borrowed for `'b` [INFO] [stderr] ... [INFO] [stderr] 608 | } [INFO] [stderr] | - here, drop of `self` needs exclusive access to `*self.stack`, because the type `stack::StackFrame<'_, S>` implements the `Drop` trait [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] warning[E0502]: cannot borrow `*self.thread` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gluon_vm-0.9.4/src/thread.rs:1398:19 [INFO] [stderr] | [INFO] [stderr] 1397 | } = **self; [INFO] [stderr] | ----- mutable borrow occurs here [INFO] [stderr] 1398 | alloc(gc, self.thread, &stack, data) [INFO] [stderr] | ^^^^^^^^^^^ ------ mutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | immutable borrow occurs here [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] warning[E0502]: cannot borrow `*self.thread` as immutable because it is also borrowed as mutable [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gluon_vm-0.9.4/src/thread.rs:1717:21 [INFO] [stderr] | [INFO] [stderr] 1714 | fn borrow_mut(&mut self) -> ExecuteContext { [INFO] [stderr] | - let's call the lifetime of this reference `'1` [INFO] [stderr] 1715 | let context = &mut **self; [INFO] [stderr] | ----- mutable borrow occurs here [INFO] [stderr] 1716 | / ExecuteContext { [INFO] [stderr] 1717 | | thread: self.thread, [INFO] [stderr] | | ^^^^^^^^^^^ immutable borrow occurs here [INFO] [stderr] 1718 | | gc: &mut context.gc, [INFO] [stderr] 1719 | | stack: StackFrame::current(&mut context.stack), [INFO] [stderr] 1720 | | hook: &mut context.hook, [INFO] [stderr] 1721 | | } [INFO] [stderr] | |_________- returning this value requires that `*self` is borrowed for `'1` [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 gluon_parser v0.9.4 [INFO] [stderr] Checking osprey v0.4.4 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> lib/architecture.rs:7:30 [INFO] [stderr] | [INFO] [stderr] 7 | falcon_type_wrapper!(Arc>, ArchitectureArchitecture); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn falcon::architecture::Architecture` [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] --> lib/loader.rs:157:26 [INFO] [stderr] | [INFO] [stderr] 157 | falcon_type_wrapper!(Arc, LoaderLoader); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn falcon::loader::Loader` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> lib/architecture.rs:7:30 [INFO] [stderr] | [INFO] [stderr] 7 | falcon_type_wrapper!(Arc>, ArchitectureArchitecture); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn falcon::architecture::Architecture` [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] --> lib/loader.rs:157:26 [INFO] [stderr] | [INFO] [stderr] 157 | falcon_type_wrapper!(Arc, LoaderLoader); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn falcon::loader::Loader` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 11s [INFO] running `"docker" "inspect" "116cd450ce0134ebf3d8192b203755138b33a3e276c9c9d220b6aaef22d919bf"` [INFO] running `"docker" "rm" "-f" "116cd450ce0134ebf3d8192b203755138b33a3e276c9c9d220b6aaef22d919bf"` [INFO] [stdout] 116cd450ce0134ebf3d8192b203755138b33a3e276c9c9d220b6aaef22d919bf