[INFO] cloning repository https://github.com/imkiva/mahiro-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imkiva/mahiro-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 32b3e0f55cc22274df9f6f8aa1b9fcaf02cc370e [INFO] checking imkiva/mahiro-rs against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/imkiva/mahiro-rs on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/imkiva/mahiro-rs [INFO] finished tweaking git repo https://github.com/imkiva/mahiro-rs [INFO] tweaked toml for git repo https://github.com/imkiva/mahiro-rs written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/imkiva/mahiro-rs 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bit-vec v0.6.2 [INFO] [stderr] Downloaded lalrpop-util v0.19.1 [INFO] [stderr] Downloaded lalrpop v0.19.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6edb4ae5ca14ba04fed3587f01f5a8dad9ef3935e2b6e61610e1c2b761432ab6 [INFO] running `Command { std: "docker" "start" "-a" "6edb4ae5ca14ba04fed3587f01f5a8dad9ef3935e2b6e61610e1c2b761432ab6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6edb4ae5ca14ba04fed3587f01f5a8dad9ef3935e2b6e61610e1c2b761432ab6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6edb4ae5ca14ba04fed3587f01f5a8dad9ef3935e2b6e61610e1c2b761432ab6", kill_on_drop: false }` [INFO] [stdout] 6edb4ae5ca14ba04fed3587f01f5a8dad9ef3935e2b6e61610e1c2b761432ab6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8feb6ae1c3a939c24e5ea6e8dcae299e3316a8bbfce6ecfa97dc00afc88b164c [INFO] running `Command { std: "docker" "start" "-a" "8feb6ae1c3a939c24e5ea6e8dcae299e3316a8bbfce6ecfa97dc00afc88b164c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling syn v1.0.44 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling aho-corasick v0.7.14 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling regex-syntax v0.6.20 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling siphasher v0.3.3 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling bit-vec v0.6.2 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Checking build_system v0.1.0 (/opt/rustwide/workdir/build_system) [INFO] [stderr] Checking vm v0.1.0 (/opt/rustwide/workdir/vm) [INFO] [stdout] warning: fields `stack`, `frame`, `caller_regs`, and `code` are never read [INFO] [stdout] --> vm/src/vm.rs:15:3 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Executor<'a> { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 15 | stack: &'a Stack, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 16 | frame: &'a Frame, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 17 | caller_regs: &'a CallerRegisters, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 18 | code: &'a Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Executor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `stack`, `frame`, `caller_regs`, and `exception` are never read [INFO] [stdout] --> vm/src/vm.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct MahiroVM { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 23 | stack: Stack, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 24 | frame: VecDeque, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 25 | caller_regs: CallerRegisters, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 26 | exception: Option, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MahiroVM` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push` and `pop` are never used [INFO] [stdout] --> vm/src/vm.rs:39:6 [INFO] [stdout] | [INFO] [stdout] 29 | impl MahiroVM { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 39 | fn push(&mut self, v: Value) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn pop(&mut self) -> Value { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling regex v1.4.1 [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stderr] Compiling lalrpop-util v0.19.1 [INFO] [stderr] Compiling string_cache v0.8.0 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Compiling lalrpop v0.19.1 [INFO] [stderr] Compiling lang v0.1.0 (/opt/rustwide/workdir/lang) [INFO] [stdout] warning: unused imports: `Expr`, `Param` [INFO] [stdout] --> lang/src/sugar/async_fn.rs:1:46 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::syntax::tree::{Decl, FnSig, Stmt, Expr, Param}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private item shadows public glob re-export [INFO] [stdout] --> lang/src/syntax/parser.rs:1:20 [INFO] [stdout] | [INFO] [stdout] 1 | use lalrpop_util::{lexer::Token, ParseError as PE, ParseError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the name `Token` in the type namespace is supposed to be publicly re-exported here [INFO] [stdout] --> lang/src/syntax/parser.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | pub use grammar::*; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] note: but the private item here shadows it [INFO] [stdout] --> lang/src/syntax/parser.rs:1:20 [INFO] [stdout] | [INFO] [stdout] 1 | use lalrpop_util::{lexer::Token, ParseError as PE, ParseError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(hidden_glob_reexports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: private item shadows public glob re-export [INFO] [stdout] --> lang/src/syntax/parser.rs:1:20 [INFO] [stdout] | [INFO] [stdout] 1 | use lalrpop_util::{lexer::Token, ParseError as PE, ParseError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the name `Token` in the value namespace is supposed to be publicly re-exported here [INFO] [stdout] --> lang/src/syntax/parser.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | pub use grammar::*; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] note: but the private item here shadows it [INFO] [stdout] --> lang/src/syntax/parser.rs:1:20 [INFO] [stdout] | [INFO] [stdout] 1 | use lalrpop_util::{lexer::Token, ParseError as PE, ParseError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Token` is imported redundantly [INFO] [stdout] --> lang/src/syntax/parser.rs:1:20 [INFO] [stdout] | [INFO] [stdout] 1 | use lalrpop_util::{lexer::Token, ParseError as PE, ParseError}; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 12 | pub use grammar::*; [INFO] [stdout] | ---------- the item `Token` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking mahiro-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.22s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.19.1 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "8feb6ae1c3a939c24e5ea6e8dcae299e3316a8bbfce6ecfa97dc00afc88b164c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8feb6ae1c3a939c24e5ea6e8dcae299e3316a8bbfce6ecfa97dc00afc88b164c", kill_on_drop: false }` [INFO] [stdout] 8feb6ae1c3a939c24e5ea6e8dcae299e3316a8bbfce6ecfa97dc00afc88b164c [INFO] checking imkiva/mahiro-rs against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/imkiva/mahiro-rs on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/imkiva/mahiro-rs [INFO] finished tweaking git repo https://github.com/imkiva/mahiro-rs [INFO] tweaked toml for git repo https://github.com/imkiva/mahiro-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/imkiva/mahiro-rs 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 52a10753878e76ee19579997b1eaeac92c54fd55a33b01bc31076af768c636cb [INFO] running `Command { std: "docker" "start" "-a" "52a10753878e76ee19579997b1eaeac92c54fd55a33b01bc31076af768c636cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52a10753878e76ee19579997b1eaeac92c54fd55a33b01bc31076af768c636cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52a10753878e76ee19579997b1eaeac92c54fd55a33b01bc31076af768c636cb", kill_on_drop: false }` [INFO] [stdout] 52a10753878e76ee19579997b1eaeac92c54fd55a33b01bc31076af768c636cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9cab361e06d9a9845d5e028cdf92f0c1a65e4109a56f3219b9dd068120941554 [INFO] running `Command { std: "docker" "start" "-a" "9cab361e06d9a9845d5e028cdf92f0c1a65e4109a56f3219b9dd068120941554", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling syn v1.0.44 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling aho-corasick v0.7.14 [INFO] [stderr] Compiling regex-syntax v0.6.20 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling siphasher v0.3.3 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling bit-vec v0.6.2 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Checking build_system v0.1.0 (/opt/rustwide/workdir/build_system) [INFO] [stderr] Checking vm v0.1.0 (/opt/rustwide/workdir/vm) [INFO] [stderr] Compiling regex v1.4.1 [INFO] [stdout] warning: fields `stack`, `frame`, `caller_regs`, and `code` are never read [INFO] [stdout] --> vm/src/vm.rs:15:3 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct Executor<'a> { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 15 | stack: &'a Stack, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 16 | frame: &'a Frame, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 17 | caller_regs: &'a CallerRegisters, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 18 | code: &'a Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Executor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `stack`, `frame`, `caller_regs`, and `exception` are never read [INFO] [stdout] --> vm/src/vm.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 22 | pub struct MahiroVM { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 23 | stack: Stack, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 24 | frame: VecDeque, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 25 | caller_regs: CallerRegisters, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 26 | exception: Option, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MahiroVM` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `push` and `pop` are never used [INFO] [stdout] --> vm/src/vm.rs:39:6 [INFO] [stdout] | [INFO] [stdout] 29 | impl MahiroVM { [INFO] [stdout] | ------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 39 | fn push(&mut self, v: Value) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | fn pop(&mut self) -> Value { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.1/src/exec.rs:836:13 [INFO] [stdout] | [INFO] [stdout] 836 | / match dfa::Fsm::reverse( [INFO] [stdout] 837 | | &self.ro.dfa_reverse, [INFO] [stdout] 838 | | self.cache.value(), [INFO] [stdout] 839 | | false, [INFO] [stdout] ... | [INFO] [stdout] 850 | | Quit => return Some(Quit), [INFO] [stdout] 851 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling serde_derive v1.0.116 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "9cab361e06d9a9845d5e028cdf92f0c1a65e4109a56f3219b9dd068120941554", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9cab361e06d9a9845d5e028cdf92f0c1a65e4109a56f3219b9dd068120941554", kill_on_drop: false }` [INFO] [stdout] 9cab361e06d9a9845d5e028cdf92f0c1a65e4109a56f3219b9dd068120941554