[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#69a5d2481e856a5a18885390b8cf6950b9ff8dd3 for pr-96376 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimkiva%2Fmahiro-rs" "/workspace/builds/worker-21/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/imkiva/mahiro-rs on toolchain 69a5d2481e856a5a18885390b8cf6950b9ff8dd3 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "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-21/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: "/workspace/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded arrayvec v0.5.1 [INFO] [stderr] Downloaded serde v1.0.116 [INFO] [stderr] Downloaded serde_derive v1.0.116 [INFO] [stderr] Downloaded memchr v2.3.3 [INFO] [stderr] Downloaded syn v1.0.44 [INFO] [stderr] Downloaded fixedbitset v0.2.0 [INFO] [stderr] Downloaded bit-vec v0.6.2 [INFO] [stderr] Downloaded new_debug_unreachable v1.0.4 [INFO] [stderr] Downloaded generic-array v0.12.3 [INFO] [stderr] Downloaded ascii-canvas v2.0.0 [INFO] [stderr] Downloaded blake2b_simd v0.5.10 [INFO] [stderr] Downloaded docopt v1.1.0 [INFO] [stderr] Downloaded siphasher v0.3.3 [INFO] [stderr] Downloaded ena v0.14.0 [INFO] [stderr] Downloaded dirs v1.0.5 [INFO] [stderr] Downloaded sha2 v0.8.2 [INFO] [stderr] Downloaded aho-corasick v0.7.14 [INFO] [stderr] Downloaded lalrpop-util v0.19.1 [INFO] [stderr] Downloaded term v0.5.2 [INFO] [stderr] Downloaded lalrpop v0.19.1 [INFO] [stderr] Downloaded libc v0.2.79 [INFO] [stderr] Downloaded regex-syntax v0.6.20 [INFO] [stderr] Downloaded regex v1.4.1 [INFO] [stderr] Downloaded rust-argon2 v0.8.2 [INFO] [stderr] Downloaded diff v0.1.12 [INFO] [stderr] Downloaded phf_shared v0.8.0 [INFO] [stderr] Downloaded precomputed-hash v0.1.1 [INFO] [stderr] Downloaded typenum v1.12.0 [INFO] [stderr] Downloaded petgraph v0.5.1 [INFO] [stderr] Downloaded string_cache v0.8.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 99884ee1d91d27be8443a7409686e23eb2313bc886f90e36cb18741296a67bd8 [INFO] running `Command { std: "docker" "start" "-a" "99884ee1d91d27be8443a7409686e23eb2313bc886f90e36cb18741296a67bd8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "99884ee1d91d27be8443a7409686e23eb2313bc886f90e36cb18741296a67bd8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99884ee1d91d27be8443a7409686e23eb2313bc886f90e36cb18741296a67bd8", kill_on_drop: false }` [INFO] [stdout] 99884ee1d91d27be8443a7409686e23eb2313bc886f90e36cb18741296a67bd8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+69a5d2481e856a5a18885390b8cf6950b9ff8dd3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a802119c4161457102c3f9cc0f2a56ee82752053aecaacb1f70a03335df93e01 [INFO] running `Command { std: "docker" "start" "-a" "a802119c4161457102c3f9cc0f2a56ee82752053aecaacb1f70a03335df93e01", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [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 serde_derive v1.0.116 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling regex-syntax v0.6.20 [INFO] [stderr] Compiling siphasher v0.3.3 [INFO] [stderr] Compiling hashbrown v0.9.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling bit-vec v0.6.2 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling diff v0.1.12 [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: field is never read: `stack` [INFO] [stdout] --> vm/src/vm.rs:15:3 [INFO] [stdout] | [INFO] [stdout] 15 | stack: &'a Stack, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Executor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> vm/src/vm.rs:13:10 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `frame` [INFO] [stdout] --> vm/src/vm.rs:16:3 [INFO] [stdout] | [INFO] [stdout] 16 | frame: &'a Frame, [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] --> vm/src/vm.rs:13:10 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `caller_regs` [INFO] [stdout] --> vm/src/vm.rs:17:3 [INFO] [stdout] | [INFO] [stdout] 17 | caller_regs: &'a CallerRegisters, [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] --> vm/src/vm.rs:13:10 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `code` [INFO] [stdout] --> vm/src/vm.rs:18:3 [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] --> vm/src/vm.rs:13:10 [INFO] [stdout] | [INFO] [stdout] 13 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `stack` [INFO] [stdout] --> vm/src/vm.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 23 | stack: Stack, [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] --> vm/src/vm.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `frame` [INFO] [stdout] --> vm/src/vm.rs:24:3 [INFO] [stdout] | [INFO] [stdout] 24 | frame: VecDeque, [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] --> vm/src/vm.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `caller_regs` [INFO] [stdout] --> vm/src/vm.rs:25:3 [INFO] [stdout] | [INFO] [stdout] 25 | caller_regs: CallerRegisters, [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] --> vm/src/vm.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `exception` [INFO] [stdout] --> vm/src/vm.rs:26:3 [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] --> vm/src/vm.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | #[derive(Debug, Clone)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push` [INFO] [stdout] --> vm/src/vm.rs:39:6 [INFO] [stdout] | [INFO] [stdout] 39 | fn push(&mut self, v: Value) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop` [INFO] [stdout] --> vm/src/vm.rs:43:6 [INFO] [stdout] | [INFO] [stdout] 43 | fn pop(&mut self) -> Value { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling aho-corasick v0.7.14 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Compiling regex v1.4.1 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling lalrpop-util v0.19.1 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Compiling string_cache v0.8.0 [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking mahiro-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 17s [INFO] running `Command { std: "docker" "inspect" "a802119c4161457102c3f9cc0f2a56ee82752053aecaacb1f70a03335df93e01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a802119c4161457102c3f9cc0f2a56ee82752053aecaacb1f70a03335df93e01", kill_on_drop: false }` [INFO] [stdout] a802119c4161457102c3f9cc0f2a56ee82752053aecaacb1f70a03335df93e01