[INFO] cloning repository https://github.com/apoloval/simproc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/apoloval/simproc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoloval%2Fsimproc"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoloval%2Fsimproc'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9cea797591c4a6f84fe36dfc68286286aa9924a6
[INFO] checking apoloval/simproc against try#e2aab98dd8975a0990f9fbb79b3ea4b40559a184 for pr-72493
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapoloval%2Fsimproc" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/apoloval/simproc on toolchain e2aab98dd8975a0990f9fbb79b3ea4b40559a184
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/apoloval/simproc
[INFO] finished tweaking git repo https://github.com/apoloval/simproc
[INFO] tweaked toml for git repo https://github.com/apoloval/simproc written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/apoloval/simproc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "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] c80fe611c15c9b4a7ffbc8347a8a2f81d196e30f91a0bc9cb2a31c138894403f
[INFO] running `"docker" "start" "-a" "c80fe611c15c9b4a7ffbc8347a8a2f81d196e30f91a0bc9cb2a31c138894403f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
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[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
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[INFO] [stderr]    Compiling regex v0.2.10
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[INFO] [stderr]     Checking log v0.4.1
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[INFO] [stderr]    Compiling proc-macro2 v0.3.5
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[INFO] [stderr]    Compiling syn v0.13.1
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[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking env_logger v0.3.5
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[INFO] [stderr]    Compiling serde_derive_internals v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.37
[INFO] [stderr]     Checking docopt v0.8.3
[INFO] [stderr]     Checking simproc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/exec.rs:24:54
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn exec<M: Memory>(inst: &RuntimeInst, ctx: &mut ExecCtx<Mem=M>) -> Cycle {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[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/cpu/exec.rs:79:34
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn exec_add<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg, carry: bool) -> Cycle {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/exec.rs:86:35
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn exec_addi<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8) -> Cycle {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/exec.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn do_add<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8, carry: bool) {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:105:34
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn exec_sub<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg, carry: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:112:35
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn exec_subi<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:117:32
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn do_sub<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8, carry: bool) {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:132:15
[INFO] [stderr]     |
[INFO] [stderr] 132 |     ctx: &mut ExecCtx<Mem=M>, dst: Reg, logic: L) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:148:15
[INFO] [stderr]     |
[INFO] [stderr] 148 |     ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg, logic: L) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:165:34
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn exec_inc<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, positive: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:179:35
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn exec_incw<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: AddrReg, positive: bool) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:194:15
[INFO] [stderr]     |
[INFO] [stderr] 194 |     ctx: &mut ExecCtx<Mem=M>, dst: Reg, f: F, g: G) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:209:34
[INFO] [stderr]     |
[INFO] [stderr] 209 | fn exec_mov<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:217:33
[INFO] [stderr]     |
[INFO] [stderr] 217 | fn exec_ld<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: AddrReg) -> Cycle {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:225:34
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn exec_ldd<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Addr) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn exec_ldi<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, val: u8) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:236:34
[INFO] [stderr]     |
[INFO] [stderr] 236 | fn exec_ldw<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: AddrReg, addr: Addr) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:241:33
[INFO] [stderr]     |
[INFO] [stderr] 241 | fn exec_st<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: AddrReg, src: Reg) -> Cycle {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:249:34
[INFO] [stderr]     |
[INFO] [stderr] 249 | fn exec_std<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Addr, src: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:255:35
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn exec_ldsp<M: Memory>(ctx: &mut ExecCtx<Mem=M>, src: AddrReg) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:262:35
[INFO] [stderr]     |
[INFO] [stderr] 262 | fn exec_push<M: Memory>(ctx: &mut ExecCtx<Mem=M>, src: Reg) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:270:34
[INFO] [stderr]     |
[INFO] [stderr] 270 | fn exec_pop<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:278:33
[INFO] [stderr]     |
[INFO] [stderr] 278 | fn exec_in<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, port: IoPort) -> Cycle {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:285:34
[INFO] [stderr]     |
[INFO] [stderr] 285 | fn exec_out<M: Memory>(ctx: &mut ExecCtx<Mem=M>, port: IoPort, src: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:293:15
[INFO] [stderr]     |
[INFO] [stderr] 293 |     ctx: &mut ExecCtx<Mem=M>, offset: RelAddr, f: F, is_call: bool) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:308:34
[INFO] [stderr]     |
[INFO] [stderr] 308 | fn exec_jmp<M: Memory>(ctx: &mut ExecCtx<Mem=M>, addr: Addr, is_call: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:320:35
[INFO] [stderr]     |
[INFO] [stderr] 320 | fn exec_ijmp<M: Memory>(ctx: &mut ExecCtx<Mem=M>, src: AddrReg, is_call: bool) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:325:34
[INFO] [stderr]     |
[INFO] [stderr] 325 | fn exec_ret<M: Memory>(ctx: &mut ExecCtx<Mem=M>, enable_int: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:336:34
[INFO] [stderr]     |
[INFO] [stderr] 336 | fn exec_nop<M: Memory>(ctx: &mut ExecCtx<Mem=M>) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:342:38
[INFO] [stderr]     |
[INFO] [stderr] 342 | fn exec_set_int<M: Memory>(ctx: &mut ExecCtx<Mem=M>, enabled: bool) -> Cycle {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/io.rs:17:43
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Io<'a> { devs: HashMap<u8, Box<IoDevice + 'a>> }
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: use `dyn`: `dyn IoDevice + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mem/bank.rs:25:44
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn select_page(&self, addr: Addr) -> (&Memory, Addr) {
[INFO] [stderr]    |                                            ^^^^^^ help: use `dyn`: `dyn Memory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mem/bank.rs:32:56
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn select_page_mut(&mut self, addr: Addr) -> (&mut Memory, Addr) {
[INFO] [stderr]    |                                                        ^^^^^^ help: use `dyn`: `dyn Memory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/exec.rs:24:54
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn exec<M: Memory>(inst: &RuntimeInst, ctx: &mut ExecCtx<Mem=M>) -> Cycle {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[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/cpu/exec.rs:79:34
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn exec_add<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg, carry: bool) -> Cycle {
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/exec.rs:86:35
[INFO] [stderr]    |
[INFO] [stderr] 86 | fn exec_addi<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8) -> Cycle {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/exec.rs:91:32
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn do_add<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8, carry: bool) {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:105:34
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn exec_sub<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg, carry: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:112:35
[INFO] [stderr]     |
[INFO] [stderr] 112 | fn exec_subi<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:117:32
[INFO] [stderr]     |
[INFO] [stderr] 117 | fn do_sub<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: u8, carry: bool) {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:132:15
[INFO] [stderr]     |
[INFO] [stderr] 132 |     ctx: &mut ExecCtx<Mem=M>, dst: Reg, logic: L) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:148:15
[INFO] [stderr]     |
[INFO] [stderr] 148 |     ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg, logic: L) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:165:34
[INFO] [stderr]     |
[INFO] [stderr] 165 | fn exec_inc<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, positive: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:179:35
[INFO] [stderr]     |
[INFO] [stderr] 179 | fn exec_incw<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: AddrReg, positive: bool) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:194:15
[INFO] [stderr]     |
[INFO] [stderr] 194 |     ctx: &mut ExecCtx<Mem=M>, dst: Reg, f: F, g: G) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:209:34
[INFO] [stderr]     |
[INFO] [stderr] 209 | fn exec_mov<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:217:33
[INFO] [stderr]     |
[INFO] [stderr] 217 | fn exec_ld<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: AddrReg) -> Cycle {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:225:34
[INFO] [stderr]     |
[INFO] [stderr] 225 | fn exec_ldd<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, src: Addr) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 | fn exec_ldi<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, val: u8) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:236:34
[INFO] [stderr]     |
[INFO] [stderr] 236 | fn exec_ldw<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: AddrReg, addr: Addr) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:241:33
[INFO] [stderr]     |
[INFO] [stderr] 241 | fn exec_st<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: AddrReg, src: Reg) -> Cycle {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:249:34
[INFO] [stderr]     |
[INFO] [stderr] 249 | fn exec_std<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Addr, src: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:255:35
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn exec_ldsp<M: Memory>(ctx: &mut ExecCtx<Mem=M>, src: AddrReg) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:262:35
[INFO] [stderr]     |
[INFO] [stderr] 262 | fn exec_push<M: Memory>(ctx: &mut ExecCtx<Mem=M>, src: Reg) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:270:34
[INFO] [stderr]     |
[INFO] [stderr] 270 | fn exec_pop<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:278:33
[INFO] [stderr]     |
[INFO] [stderr] 278 | fn exec_in<M: Memory>(ctx: &mut ExecCtx<Mem=M>, dst: Reg, port: IoPort) -> Cycle {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:285:34
[INFO] [stderr]     |
[INFO] [stderr] 285 | fn exec_out<M: Memory>(ctx: &mut ExecCtx<Mem=M>, port: IoPort, src: Reg) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:293:15
[INFO] [stderr]     |
[INFO] [stderr] 293 |     ctx: &mut ExecCtx<Mem=M>, offset: RelAddr, f: F, is_call: bool) -> Cycle
[INFO] [stderr]     |               ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:308:34
[INFO] [stderr]     |
[INFO] [stderr] 308 | fn exec_jmp<M: Memory>(ctx: &mut ExecCtx<Mem=M>, addr: Addr, is_call: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:320:35
[INFO] [stderr]     |
[INFO] [stderr] 320 | fn exec_ijmp<M: Memory>(ctx: &mut ExecCtx<Mem=M>, src: AddrReg, is_call: bool) -> Cycle {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:325:34
[INFO] [stderr]     |
[INFO] [stderr] 325 | fn exec_ret<M: Memory>(ctx: &mut ExecCtx<Mem=M>, enable_int: bool) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:336:34
[INFO] [stderr]     |
[INFO] [stderr] 336 | fn exec_nop<M: Memory>(ctx: &mut ExecCtx<Mem=M>) -> Cycle {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/cpu/exec.rs:342:38
[INFO] [stderr]     |
[INFO] [stderr] 342 | fn exec_set_int<M: Memory>(ctx: &mut ExecCtx<Mem=M>, enabled: bool) -> Cycle {
[INFO] [stderr]     |                                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn ExecCtx<Mem=M>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/cpu/io.rs:17:43
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Io<'a> { devs: HashMap<u8, Box<IoDevice + 'a>> }
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^ help: use `dyn`: `dyn IoDevice + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mem/bank.rs:25:44
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn select_page(&self, addr: Addr) -> (&Memory, Addr) {
[INFO] [stderr]    |                                            ^^^^^^ help: use `dyn`: `dyn Memory`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mem/bank.rs:32:56
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn select_page_mut(&mut self, addr: Addr) -> (&mut Memory, Addr) {
[INFO] [stderr]    |                                                        ^^^^^^ help: use `dyn`: `dyn Memory`
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' panicked at 'index out of bounds: the len is 0 but the index is 0', src/librustc_mir_build/hair/pattern/_match.rs:1184:21
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7ff4c4b8ec85 - backtrace::backtrace::libunwind::trace::h678b9599e62f63eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x7ff4c4b8ec85 - backtrace::backtrace::trace_unsynchronized::hb47d77776d18cf5b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x7ff4c4b8ec85 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x7ff4c4b8ec85 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0e056b70ceff915d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x7ff4c4bcc21c - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x7ff4c4b80d63 - std::io::Write::write_fmt::h5b95d57b9d83617e
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x7ff4c4b93c90 - std::sys_common::backtrace::_print::hde4f93cf630dd149
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x7ff4c4b93c90 - std::sys_common::backtrace::print::hab894e5c65d4445d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x7ff4c4b93c90 - std::panicking::default_hook::{{closure}}::h069a26eaaf53ac74
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x7ff4c4b939dc - std::panicking::default_hook::he2b0e031648f6bed
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x7ff4c52adb03 - rustc_driver::report_ice::h76a5283215ef3ce2
[INFO] [stderr]   11:     0x7ff4c4b9433c - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b
[INFO] [stderr]                                at src/libstd/panicking.rs:490
[INFO] [stderr]   12:     0x7ff4c4b93f1b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   13:     0x7ff4c4bc8dc1 - core::panicking::panic_fmt::hd101a87121fa411f
[INFO] [stderr]                                at src/libcore/panicking.rs:101
[INFO] [stderr]   14:     0x7ff4c4bc8d82 - core::panicking::panic_bounds_check::ha0668dcff6357ef4
[INFO] [stderr]                                at src/libcore/panicking.rs:73
[INFO] [stderr]   15:     0x7ff4c628563e - rustc_mir_build::hair::pattern::_match::Fields::replace_with_fieldpats::hcf5ce13ee9d4cfec
[INFO] [stderr]   16:     0x7ff4c628014c - rustc_mir_build::hair::pattern::_match::PatStack::specialize_constructor::h02fca108eeb2545d
[INFO] [stderr]   17:     0x7ff4c6288456 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79
[INFO] [stderr]   18:     0x7ff4c633972a - <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab
[INFO] [stderr]   19:     0x7ff4c628777f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   20:     0x7ff4c62879fd - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   21:     0x7ff4c6288529 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79
[INFO] [stderr]   22:     0x7ff4c633972a - <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab
[INFO] [stderr]   23:     0x7ff4c628777f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   24:     0x7ff4c6288529 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79
[INFO] [stderr]   25:     0x7ff4c633972a - <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab
[INFO] [stderr]   26:     0x7ff4c628777f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   27:     0x7ff4c6297336 - rustc_mir_build::hair::pattern::check_match::check_not_useful::h47c9834122f36118
[INFO] [stderr]   28:     0x7ff4c62955e4 - <rustc_mir_build::hair::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr::h6d4d33aab4ad24b6
[INFO] [stderr]   29:     0x7ff4c6294bbc - <rustc_mir_build::hair::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr::h6d4d33aab4ad24b6
[INFO] [stderr]   30:     0x7ff4c62948ac - rustc_mir_build::hair::pattern::check_match::check_match::h6ed435df85a92553
[INFO] [stderr]   31:     0x7ff4c54b99e2 - rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::check_match>::compute::h7942ff33ebb491ec
[INFO] [stderr]   32:     0x7ff4c550925d - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::h4edadaeda1df0b7d
[INFO] [stderr]   33:     0x7ff4c55325b3 - rustc_data_structures::stack::ensure_sufficient_stack::hfdfb141ad7352d9d
[INFO] [stderr]   34:     0x7ff4c5559b00 - rustc_query_system::query::plumbing::get_query_impl::h57cc97c7af6b96a3
[INFO] [stderr]   35:     0x7ff4c5566dc7 - rustc_query_system::query::plumbing::ensure_query_impl::h88f31e7b8f316844
[INFO] [stderr]   36:     0x7ff4c54bd13b - rustc_session::utils::<impl rustc_session::session::Session>::time::h3484c4e2989ee128
[INFO] [stderr]   37:     0x7ff4c54bd6a7 - rustc_session::utils::<impl rustc_session::session::Session>::time::h8e58a4e32869f591
[INFO] [stderr]   38:     0x7ff4c54556ca - rustc_interface::passes::analysis::h838ab583621bc53e
[INFO] [stderr]   39:     0x7ff4c52afafb - rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::analysis>::compute::h145128927f8d44c3
[INFO] [stderr]   40:     0x7ff4c530ac77 - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::h0c280ffe4e600d0e
[INFO] [stderr]   41:     0x7ff4c531603d - rustc_query_system::query::plumbing::get_query_impl::h37ddcaa4a0c60b45
[INFO] [stderr]   42:     0x7ff4c52afd07 - rustc_middle::ty::context::tls::enter_global::h43b4d7278205661c
[INFO] [stderr]   43:     0x7ff4c527c01d - rustc_interface::interface::run_compiler_in_existing_thread_pool::h5d4334487074190f
[INFO] [stderr]   44:     0x7ff4c52c691d - scoped_tls::ScopedKey<T>::set::h51123c2e8bd39911
[INFO] [stderr]   45:     0x7ff4c52c2ea2 - rustc_ast::attr::with_globals::h27faf57f3fd8d421
[INFO] [stderr]   46:     0x7ff4c52c86cc - std::sys_common::backtrace::__rust_begin_short_backtrace::hac744d22fa8cc61c
[INFO] [stderr]   47:     0x7ff4c527f24e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h237c6aa9840af126
[INFO] [stderr]   48:     0x7ff4c4ba3b9a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb59dd7261bcac217
[INFO] [stderr]                                at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057
[INFO] [stderr]   49:     0x7ff4c4ba3b9a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb7a91030439e6548
[INFO] [stderr]                                at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057
[INFO] [stderr]   50:     0x7ff4c4ba3b9a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8
[INFO] [stderr]                                at src/libstd/sys/unix/thread.rs:87
[INFO] [stderr]   51:     0x7ff4c4ae5609 - start_thread
[INFO] [stderr]   52:     0x7ff4c49f9103 - __clone
[INFO] [stderr]   53:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: internal compiler error: unexpected panic
[INFO] [stderr] 
[INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug.
[INFO] [stderr] 
[INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.45.0-nightly (e2aab98dd 2020-05-23) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type lib
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [check_match] processing `cpu::exec::exec`
[INFO] [stderr] #1 [analysis] running analysis passes on this crate
[INFO] [stderr] end of query stack
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `simproc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] thread 'rustc' panicked at 'index out of bounds: the len is 0 but the index is 0', src/librustc_mir_build/hair/pattern/_match.rs:1184:21
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7fc3418e6c85 - backtrace::backtrace::libunwind::trace::h678b9599e62f63eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x7fc3418e6c85 - backtrace::backtrace::trace_unsynchronized::hb47d77776d18cf5b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x7fc3418e6c85 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x7fc3418e6c85 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0e056b70ceff915d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x7fc34192421c - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x7fc3418d8d63 - std::io::Write::write_fmt::h5b95d57b9d83617e
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x7fc3418ebc90 - std::sys_common::backtrace::_print::hde4f93cf630dd149
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x7fc3418ebc90 - std::sys_common::backtrace::print::hab894e5c65d4445d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x7fc3418ebc90 - std::panicking::default_hook::{{closure}}::h069a26eaaf53ac74
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x7fc3418eb9dc - std::panicking::default_hook::he2b0e031648f6bed
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x7fc342005b03 - rustc_driver::report_ice::h76a5283215ef3ce2
[INFO] [stderr]   11:     0x7fc3418ec33c - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b
[INFO] [stderr]                                at src/libstd/panicking.rs:490
[INFO] [stderr]   12:     0x7fc3418ebf1b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   13:     0x7fc341920dc1 - core::panicking::panic_fmt::hd101a87121fa411f
[INFO] [stderr]                                at src/libcore/panicking.rs:101
[INFO] [stderr]   14:     0x7fc341920d82 - core::panicking::panic_bounds_check::ha0668dcff6357ef4
[INFO] [stderr]                                at src/libcore/panicking.rs:73
[INFO] [stderr]   15:     0x7fc342fdd63e - rustc_mir_build::hair::pattern::_match::Fields::replace_with_fieldpats::hcf5ce13ee9d4cfec
[INFO] [stderr]   16:     0x7fc342fd814c - rustc_mir_build::hair::pattern::_match::PatStack::specialize_constructor::h02fca108eeb2545d
[INFO] [stderr]   17:     0x7fc342fe0456 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79
[INFO] [stderr]   18:     0x7fc34309172a - <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab
[INFO] [stderr]   19:     0x7fc342fdf77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   20:     0x7fc342fdf9fd - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   21:     0x7fc342fe0529 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79
[INFO] [stderr]   22:     0x7fc34309172a - <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab
[INFO] [stderr]   23:     0x7fc342fdf77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   24:     0x7fc342fe0529 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79
[INFO] [stderr]   25:     0x7fc34309172a - <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab
[INFO] [stderr]   26:     0x7fc342fdf77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c
[INFO] [stderr]   27:     0x7fc342fef336 - rustc_mir_build::hair::pattern::check_match::check_not_useful::h47c9834122f36118
[INFO] [stderr]   28:     0x7fc342fed5e4 - <rustc_mir_build::hair::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr::h6d4d33aab4ad24b6
[INFO] [stderr]   29:     0x7fc342fecbbc - <rustc_mir_build::hair::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr::h6d4d33aab4ad24b6
[INFO] [stderr]   30:     0x7fc342fec8ac - rustc_mir_build::hair::pattern::check_match::check_match::h6ed435df85a92553
[INFO] [stderr]   31:     0x7fc3422119e2 - rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::check_match>::compute::h7942ff33ebb491ec
[INFO] [stderr]   32:     0x7fc34226125d - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::h4edadaeda1df0b7d
[INFO] [stderr]   33:     0x7fc34228a5b3 - rustc_data_structures::stack::ensure_sufficient_stack::hfdfb141ad7352d9d
[INFO] [stderr]   34:     0x7fc3422b1b00 - rustc_query_system::query::plumbing::get_query_impl::h57cc97c7af6b96a3
[INFO] [stderr]   35:     0x7fc3422bedc7 - rustc_query_system::query::plumbing::ensure_query_impl::h88f31e7b8f316844
[INFO] [stderr]   36:     0x7fc34221513b - rustc_session::utils::<impl rustc_session::session::Session>::time::h3484c4e2989ee128
[INFO] [stderr]   37:     0x7fc3422156a7 - rustc_session::utils::<impl rustc_session::session::Session>::time::h8e58a4e32869f591
[INFO] [stderr]   38:     0x7fc3421ad6ca - rustc_interface::passes::analysis::h838ab583621bc53e
[INFO] [stderr]   39:     0x7fc342007afb - rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::analysis>::compute::h145128927f8d44c3
[INFO] [stderr]   40:     0x7fc342062c77 - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::h0c280ffe4e600d0e
[INFO] [stderr]   41:     0x7fc34206e03d - rustc_query_system::query::plumbing::get_query_impl::h37ddcaa4a0c60b45
[INFO] [stderr]   42:     0x7fc342007d07 - rustc_middle::ty::context::tls::enter_global::h43b4d7278205661c
[INFO] [stderr]   43:     0x7fc341fd401d - rustc_interface::interface::run_compiler_in_existing_thread_pool::h5d4334487074190f
[INFO] [stderr]   44:     0x7fc34201e91d - scoped_tls::ScopedKey<T>::set::h51123c2e8bd39911
[INFO] [stderr]   45:     0x7fc34201aea2 - rustc_ast::attr::with_globals::h27faf57f3fd8d421
[INFO] [stderr]   46:     0x7fc3420206cc - std::sys_common::backtrace::__rust_begin_short_backtrace::hac744d22fa8cc61c
[INFO] [stderr]   47:     0x7fc341fd724e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h237c6aa9840af126
[INFO] [stderr]   48:     0x7fc3418fbb9a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb59dd7261bcac217
[INFO] [stderr]                                at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057
[INFO] [stderr]   49:     0x7fc3418fbb9a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hb7a91030439e6548
[INFO] [stderr]                                at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057
[INFO] [stderr]   50:     0x7fc3418fbb9a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8
[INFO] [stderr]                                at src/libstd/sys/unix/thread.rs:87
[INFO] [stderr]   51:     0x7fc34183d609 - start_thread
[INFO] [stderr]   52:     0x7fc341751103 - __clone
[INFO] [stderr]   53:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: internal compiler error: unexpected panic
[INFO] [stderr] 
[INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug.
[INFO] [stderr] 
[INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.45.0-nightly (e2aab98dd 2020-05-23) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] #0 [check_match] processing `cpu::exec::exec`
[INFO] [stderr] #1 [analysis] running analysis passes on this crate
[INFO] [stderr] end of query stack
[INFO] [stderr] warning: 33 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c80fe611c15c9b4a7ffbc8347a8a2f81d196e30f91a0bc9cb2a31c138894403f"`
[INFO] running `"docker" "rm" "-f" "c80fe611c15c9b4a7ffbc8347a8a2f81d196e30f91a0bc9cb2a31c138894403f"`
[INFO] [stdout] c80fe611c15c9b4a7ffbc8347a8a2f81d196e30f91a0bc9cb2a31c138894403f