[INFO] crate jazz 0.2.2 is already in cache
[INFO] checking jazz-0.2.2 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] extracting crate jazz 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate jazz 0.2.2 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate jazz 0.2.2
[INFO] finished tweaking crates.io crate jazz 0.2.2
[INFO] tweaked toml for crates.io crate jazz 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1d1abfd667e67c4521e00cd491974809799e6229a1c22ad47c6c26bbcdd4503f
[INFO] running `"docker" "start" "-a" "1d1abfd667e67c4521e00cd491974809799e6229a1c22ad47c6c26bbcdd4503f"`
[INFO] [stderr]     Checking jazz v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/machine.rs:461:73
[INFO] [stderr]     |
[INFO] [stderr] 461 |                         obj.store_at(self, vec![target, key, value], 0);;
[INFO] [stderr]     |                                                                         ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> src/machine.rs:461:73
[INFO] [stderr]     |
[INFO] [stderr] 461 |                         obj.store_at(self, vec![target, key, value], 0);;
[INFO] [stderr]     |                                                                         ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:344:33
[INFO] [stderr]     |
[INFO] [stderr] 343 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 344 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:377:33
[INFO] [stderr]     |
[INFO] [stderr] 376 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 377 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:354:33
[INFO] [stderr]     |
[INFO] [stderr] 353 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 354 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:364:33
[INFO] [stderr]     |
[INFO] [stderr] 363 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 364 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:312:25
[INFO] [stderr]     |
[INFO] [stderr] 311 |                         let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                   ----------- immutable borrow occurs here
[INFO] [stderr] 312 |                         self.branch(*idx);
[INFO] [stderr]     |                         ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:323:33
[INFO] [stderr]     |
[INFO] [stderr] 322 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 323 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:333:33
[INFO] [stderr]     |
[INFO] [stderr] 332 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 333 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:404:25
[INFO] [stderr]     |
[INFO] [stderr] 403 |                         let value = self.globals.get(index).unwrap();
[INFO] [stderr]     |                                     ------------ immutable borrow occurs here
[INFO] [stderr] 404 |                         self.set(*reg, *value);
[INFO] [stderr]     |                         ^^^^           ------ immutable borrow later used here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:344:33
[INFO] [stderr]     |
[INFO] [stderr] 343 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 344 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:377:33
[INFO] [stderr]     |
[INFO] [stderr] 376 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 377 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:354:33
[INFO] [stderr]     |
[INFO] [stderr] 353 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 354 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:364:33
[INFO] [stderr]     |
[INFO] [stderr] 363 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 364 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:312:25
[INFO] [stderr]     |
[INFO] [stderr] 311 |                         let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                   ----------- immutable borrow occurs here
[INFO] [stderr] 312 |                         self.branch(*idx);
[INFO] [stderr]     |                         ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:323:33
[INFO] [stderr]     |
[INFO] [stderr] 322 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 323 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:333:33
[INFO] [stderr]     |
[INFO] [stderr] 332 | ...                   let idx = self.labels.get(lbl_id).unwrap();
[INFO] [stderr]     |                                 ----------- immutable borrow occurs here
[INFO] [stderr] 333 | ...                   self.branch(*idx);
[INFO] [stderr]     |                       ^^^^        ---- immutable borrow later used here
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/machine.rs:404:25
[INFO] [stderr]     |
[INFO] [stderr] 403 |                         let value = self.globals.get(index).unwrap();
[INFO] [stderr]     |                                     ------------ immutable borrow occurs here
[INFO] [stderr] 404 |                         self.set(*reg, *value);
[INFO] [stderr]     |                         ^^^^           ------ immutable borrow later used here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `"docker" "inspect" "1d1abfd667e67c4521e00cd491974809799e6229a1c22ad47c6c26bbcdd4503f"`
[INFO] running `"docker" "rm" "-f" "1d1abfd667e67c4521e00cd491974809799e6229a1c22ad47c6c26bbcdd4503f"`
[INFO] [stdout] 1d1abfd667e67c4521e00cd491974809799e6229a1c22ad47c6c26bbcdd4503f
