[INFO] cloning repository https://github.com/EbbDrop/c89-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EbbDrop/c89-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEbbDrop%2Fc89-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEbbDrop%2Fc89-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3952ae6b670e46e3d008bf36836be01242542329
[INFO] checking EbbDrop/c89-compiler against master#292be5c7c05138d753bbd4b30db7a3f1a5c914f7 for pr-148271
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEbbDrop%2Fc89-compiler" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/EbbDrop/c89-compiler
[INFO] finished tweaking git repo https://github.com/EbbDrop/c89-compiler
[INFO] tweaked toml for git repo https://github.com/EbbDrop/c89-compiler written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/EbbDrop/c89-compiler on toolchain 292be5c7c05138d753bbd4b30db7a3f1a5c914f7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/EbbDrop/c89-compiler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/jonatcln/antlr4rust.git`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded better_any v0.2.0
[INFO] [stderr]   Downloaded vec1 v1.10.1
[INFO] [stderr]   Downloaded murmur3 v0.4.1
[INFO] [stderr]   Downloaded temp-file v0.1.7
[INFO] [stderr]   Downloaded generational-arena v0.2.9
[INFO] [stderr]   Downloaded syn v2.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 027c6036aa2d6e20ff72e64e9a670cf96f0fa45662fdef0581e770e6eca7ce0c
[INFO] running `Command { std: "docker" "start" "-a" "027c6036aa2d6e20ff72e64e9a670cf96f0fa45662fdef0581e770e6eca7ce0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "027c6036aa2d6e20ff72e64e9a670cf96f0fa45662fdef0581e770e6eca7ce0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "027c6036aa2d6e20ff72e64e9a670cf96f0fa45662fdef0581e770e6eca7ce0c", kill_on_drop: false }`
[INFO] [stdout] 027c6036aa2d6e20ff72e64e9a670cf96f0fa45662fdef0581e770e6eca7ce0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+292be5c7c05138d753bbd4b30db7a3f1a5c914f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fdbf96780649abe4c31213f69a67f0681bd6d85a67a8e40eaa7f8b8b63a0184
[INFO] running `Command { std: "docker" "start" "-a" "6fdbf96780649abe4c31213f69a67f0681bd6d85a67a8e40eaa7f8b8b63a0184", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking vec1 v1.10.1
[INFO] [stderr]    Compiling comp_lib v0.1.0 (/opt/rustwide/workdir/comp_lib)
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]     Checking generational-arena v0.2.9
[INFO] [stderr]     Checking murmur3 v0.4.1
[INFO] [stderr]     Checking llvm_ir v0.1.0 (/opt/rustwide/workdir/llvm_ir)
[INFO] [stderr]     Checking better_any v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]     Checking anstyle-parse v0.1.1
[INFO] [stderr]     Checking anstyle v0.3.5
[INFO] [stderr]     Checking concolor-override v1.0.0
[INFO] [stderr]     Checking concolor-query v0.3.3
[INFO] [stderr]     Checking clap_lex v0.4.1
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking mips_ir v0.1.0 (/opt/rustwide/workdir/mips_ir)
[INFO] [stderr]     Checking temp-file v0.1.7
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking pretty_assertions v1.3.0
[INFO] [stderr]     Checking antlr-rust v0.3.0-beta (https://github.com/jonatcln/antlr4rust.git?rev=0836c81f747b990bcfb97bb61970be0d2d6b5170#0836c81f)
[INFO] [stderr]    Compiling tests v0.1.0 (/opt/rustwide/workdir/tests)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.53/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `comp_lib v0.1.0 (/opt/rustwide/workdir/comp_lib)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/comp_lib-1c1c06f591e8010c/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   context [/report CANNOT_WRITE_FILE] 1:19 attribute arg isn't defined
[INFO] [stderr]   error(1):  cannot write file : 
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (209) panicked at comp_lib/build.rs:45:9:
[INFO] [stderr]   antlr failed
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x6254b7661a42 - std::backtrace_rs::backtrace::libunwind::trace::h125f93ddc485b77e
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x6254b7661a42 - std::backtrace_rs::backtrace::trace_unsynchronized::hc99b5bff97364675
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x6254b7661a42 - std::sys::backtrace::_print_fmt::h1f7f20fb63f556aa
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x6254b7661a42 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h78e5c2918fb9b520
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x6254b767095f - core::fmt::rt::Argument::fmt::hde8630412e21d51f
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x6254b767095f - core::fmt::write::hebec1ff7e64d3848
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x6254b7638373 - std::io::default_write_fmt::h82703b8cb4c474b2
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x6254b7638373 - std::io::Write::write_fmt::hfe0611569a8339ca
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x6254b7641542 - std::sys::backtrace::BacktraceLock::print::hf79a20b4402b0c10
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x6254b764301c - std::panicking::default_hook::{{closure}}::h8654f24ef7894841
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x6254b7642e76 - std::panicking::default_hook::h7fb329bf717bb690
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x6254b76435f5 - std::panicking::panic_with_hook::h66ddf0f1cbb4da7f
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x6254b7643456 - std::panicking::panic_handler::{{closure}}::h14b0eef116397479
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:700:13
[INFO] [stderr]     13:     0x6254b7641679 - std::sys::backtrace::__rust_end_short_backtrace::hfbe4d0e0f13428ea
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x6254b762cd2d - __rustc[bd1d860747af831f]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x6254b7673e20 - core::panicking::panic_fmt::hcc995aed4dbeed97
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x6254b76270c8 - build_script_build::main::had12e09770c72dcc
[INFO] [stderr]     17:     0x6254b7628753 - core::ops::function::FnOnce::call_once::hca208cb8aa1f6549
[INFO] [stderr]     18:     0x6254b7628086 - std::sys::backtrace::__rust_begin_short_backtrace::h24e75c2f6d7a99c9
[INFO] [stderr]     19:     0x6254b7627fb9 - std::rt::lang_start::{{closure}}::h5da7e894db5b126d
[INFO] [stderr]     20:     0x6254b7639a90 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5c19c3652cefbac1
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     21:     0x6254b7639a90 - std::panicking::catch_unwind::do_call::h264cd50759154226
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:590:40
[INFO] [stderr]     22:     0x6254b7639a90 - std::panicking::catch_unwind::h33b68e3843f1e57e
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:553:19
[INFO] [stderr]     23:     0x6254b7639a90 - std::panic::catch_unwind::h77f90a7678db1dc2
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panic.rs:359:14
[INFO] [stderr]     24:     0x6254b7639a90 - std::rt::lang_start_internal::{{closure}}::h76ba764f5774641b
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/rt.rs:175:24
[INFO] [stderr]     25:     0x6254b7639a90 - std::panicking::catch_unwind::do_call::h3b0b96b944a509a7
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:590:40
[INFO] [stderr]     26:     0x6254b7639a90 - std::panicking::catch_unwind::hf141e6ebf3688bf3
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panicking.rs:553:19
[INFO] [stderr]     27:     0x6254b7639a90 - std::panic::catch_unwind::h471b3c7af8f95b96
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x6254b7639a90 - std::rt::lang_start_internal::h1de9b641816771d7
[INFO] [stderr]                                  at /rustc/292be5c7c05138d753bbd4b30db7a3f1a5c914f7/library/std/src/rt.rs:171:5
[INFO] [stderr]     29:     0x6254b7627fa1 - std::rt::lang_start::h8f09c3ef94083099
[INFO] [stderr]     30:     0x6254b762ca45 - main
[INFO] [stderr]     31:     0x7ed139e931ca - <unknown>
[INFO] [stderr]     32:     0x7ed139e9328b - __libc_start_main
[INFO] [stderr]     33:     0x6254b7626885 - _start
[INFO] [stderr]     34:                0x0 - <unknown>
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 123 | impl Cfg {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 145 |     pub fn set_entry_block(&mut self, new_entry_block: BlockId) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub fn get(&self, block: BlockId) -> Option<&BasicBlock> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn get_mut(&mut self, block: BlockId) -> Option<&mut BasicBlock> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     pub fn n_successors(&self, block: BlockId) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     pub fn successors(&self, block: BlockId) -> impl Iterator<Item = (BlockId, &BasicBlock)> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 272 |     pub fn dominance_frontiers(&self) -> BTreeMap<BlockId, BTreeSet<BlockId>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 297 |     pub fn du_chain(&self, reg: AnyReg) -> uda::DuChain {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `strict_dominators`, `is_reachable`, `dominates`, and `strictly_dominates` are never used
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:515:12
[INFO] [stdout]     |
[INFO] [stdout] 432 | impl DominatorTree {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 515 |     pub fn strict_dominators(&self, block: BlockId) -> impl Iterator<Item = BlockId> + '_ {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 531 |     pub fn is_reachable(&self, block: BlockId) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 535 |     pub fn dominates(&self, dominator: BlockId, dominated: BlockId) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 539 |     pub fn strictly_dominates(&self, dominator: BlockId, dominated: BlockId) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_next_location` is never used
[INFO] [stdout]   --> mips_ir/src/dfa/uda/du_chains.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl DefLocation {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn as_next_location(self) -> Location {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_location` and `as_next_location` are never used
[INFO] [stdout]   --> mips_ir/src/dfa/uda/du_chains.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl GlobalDefLocation {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] 72 |     #[inline]
[INFO] [stdout] 73 |     pub fn as_location(self) -> GlobalLocation {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn as_next_location(self) -> GlobalLocation {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `def` is never used
[INFO] [stdout]    --> mips_ir/src/dfa/uda/du_chains.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl DuChain {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn def(&self) -> GlobalDefLocation {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |     pub fn dfs_preorder(&self) -> DominatorTreeDfsPreorder {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 544 |     pub fn dfs_preorder(&self) -> DominatorTreeDfsPreorder<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:548:30
[INFO] [stdout]     |
[INFO] [stdout] 548 |     pub fn dfs_preorder_from(&self, start: BlockId) -> DominatorTreeDfsPreorder {
[INFO] [stdout]     |                              ^^^^^                     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 548 |     pub fn dfs_preorder_from(&self, start: BlockId) -> DominatorTreeDfsPreorder<'_> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/function/mod.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn traverse(&self) -> Traverser {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn traverse(&self) -> Traverser<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/function/mod.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn traverse_all(&self) -> Traverser {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn traverse_all(&self) -> Traverser<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> mips_ir/src/reg/test.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 140 |     format!("{}", Reg::R(32));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let _ = format!("{}", Reg::R(32));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]    --> mips_ir/src/reg/test.rs:146:5
[INFO] [stdout]     |
[INFO] [stdout] 146 |     format!("{}", FReg::F(32));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 146 |     let _ = format!("{}", FReg::F(32));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:145:12
[INFO] [stdout]     |
[INFO] [stdout] 123 | impl Cfg {
[INFO] [stdout]     | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 145 |     pub fn set_entry_block(&mut self, new_entry_block: BlockId) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub fn get(&self, block: BlockId) -> Option<&BasicBlock> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 168 |     pub fn get_mut(&mut self, block: BlockId) -> Option<&mut BasicBlock> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     pub fn n_successors(&self, block: BlockId) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 224 |     pub fn successors(&self, block: BlockId) -> impl Iterator<Item = (BlockId, &BasicBlock)> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 272 |     pub fn dominance_frontiers(&self) -> BTreeMap<BlockId, BTreeSet<BlockId>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 297 |     pub fn du_chain(&self, reg: AnyReg) -> uda::DuChain {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `strict_dominators`, `is_reachable`, `dominates`, and `strictly_dominates` are never used
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:515:12
[INFO] [stdout]     |
[INFO] [stdout] 432 | impl DominatorTree {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 515 |     pub fn strict_dominators(&self, block: BlockId) -> impl Iterator<Item = BlockId> + '_ {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 531 |     pub fn is_reachable(&self, block: BlockId) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 535 |     pub fn dominates(&self, dominator: BlockId, dominated: BlockId) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 539 |     pub fn strictly_dominates(&self, dominator: BlockId, dominated: BlockId) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_next_location` is never used
[INFO] [stdout]   --> mips_ir/src/dfa/uda/du_chains.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl DefLocation {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn as_next_location(self) -> Location {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_location` and `as_next_location` are never used
[INFO] [stdout]   --> mips_ir/src/dfa/uda/du_chains.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl GlobalDefLocation {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout] 72 |     #[inline]
[INFO] [stdout] 73 |     pub fn as_location(self) -> GlobalLocation {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn as_next_location(self) -> GlobalLocation {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `def` is never used
[INFO] [stdout]    --> mips_ir/src/dfa/uda/du_chains.rs:144:12
[INFO] [stdout]     |
[INFO] [stdout] 105 | impl DuChain {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 144 |     pub fn def(&self) -> GlobalDefLocation {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:544:25
[INFO] [stdout]     |
[INFO] [stdout] 544 |     pub fn dfs_preorder(&self) -> DominatorTreeDfsPreorder {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 544 |     pub fn dfs_preorder(&self) -> DominatorTreeDfsPreorder<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/cfg/mod.rs:548:30
[INFO] [stdout]     |
[INFO] [stdout] 548 |     pub fn dfs_preorder_from(&self, start: BlockId) -> DominatorTreeDfsPreorder {
[INFO] [stdout]     |                              ^^^^^                     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 548 |     pub fn dfs_preorder_from(&self, start: BlockId) -> DominatorTreeDfsPreorder<'_> {
[INFO] [stdout]     |                                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/function/mod.rs:127:21
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn traverse(&self) -> Traverser {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn traverse(&self) -> Traverser<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> mips_ir/src/function/mod.rs:133:25
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn traverse_all(&self) -> Traverser {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn traverse_all(&self) -> Traverser<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> llvm_ir/src/module.rs:383:20
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub fn display(&self, opts: crate::FmtOpts) -> Display {
[INFO] [stdout]     |                    ^^^^^                           ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub fn display(&self, opts: crate::FmtOpts) -> Display<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> llvm_ir/src/module.rs:383:20
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub fn display(&self, opts: crate::FmtOpts) -> Display {
[INFO] [stdout]     |                    ^^^^^                           ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 383 |     pub fn display(&self, opts: crate::FmtOpts) -> Display<'_> {
[INFO] [stdout]     |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6fdbf96780649abe4c31213f69a67f0681bd6d85a67a8e40eaa7f8b8b63a0184", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fdbf96780649abe4c31213f69a67f0681bd6d85a67a8e40eaa7f8b8b63a0184", kill_on_drop: false }`
[INFO] [stdout] 6fdbf96780649abe4c31213f69a67f0681bd6d85a67a8e40eaa7f8b8b63a0184
