[INFO] fetching crate zub 0.3.14... [INFO] testing zub-0.3.14 against 1.90.0 for beta-1.91-3 [INFO] extracting crate zub 0.3.14 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate zub 0.3.14 [INFO] finished tweaking crates.io crate zub 0.3.14 [INFO] tweaked toml for crates.io crate zub 0.3.14 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate zub 0.3.14 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate zub 0.3.14 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded fnv v1.0.6 [INFO] [stderr] Downloaded utf8-ranges v1.0.4 [INFO] [stderr] Downloaded flamer v0.3.0 [INFO] [stderr] Downloaded beef v0.4.4 [INFO] [stderr] Downloaded colored v1.9.3 [INFO] [stderr] Downloaded rand_xoshiro v0.4.0 [INFO] [stderr] Downloaded serde_derive v1.0.106 [INFO] [stderr] Downloaded logos-derive v0.11.5 [INFO] [stderr] Downloaded serde v1.0.106 [INFO] [stderr] Downloaded serde_json v1.0.52 [INFO] [stderr] Downloaded ryu v1.0.4 [INFO] [stderr] Downloaded im-rc v14.3.0 [INFO] [stderr] Downloaded ahash v0.3.3 [INFO] [stderr] Downloaded sized-chunks v0.5.3 [INFO] [stderr] Downloaded logos v0.11.4 [INFO] [stderr] Downloaded flame v0.2.2 [INFO] [stderr] Downloaded regex-syntax v0.6.17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 03eb5138c0609dac3fc51f32afccd8bdbefe5988a0deb479f6fb432907f075ff [INFO] running `Command { std: "docker" "start" "-a" "03eb5138c0609dac3fc51f32afccd8bdbefe5988a0deb479f6fb432907f075ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "03eb5138c0609dac3fc51f32afccd8bdbefe5988a0deb479f6fb432907f075ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03eb5138c0609dac3fc51f32afccd8bdbefe5988a0deb479f6fb432907f075ff", kill_on_drop: false }` [INFO] [stdout] 03eb5138c0609dac3fc51f32afccd8bdbefe5988a0deb479f6fb432907f075ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 20baf14cacbf6e7625b0890d633595c8801d712c7ec6dbd59eb24de0b5e46a24 [INFO] running `Command { std: "docker" "start" "-a" "20baf14cacbf6e7625b0890d633595c8801d712c7ec6dbd59eb24de0b5e46a24", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling ryu v1.0.4 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling version_check v0.9.1 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling ahash v0.3.3 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling rand_xoshiro v0.4.0 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Compiling im-rc v14.3.0 [INFO] [stderr] Compiling thread-id v3.3.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling colored v1.9.3 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Compiling bitmaps v2.1.0 [INFO] [stderr] Compiling sized-chunks v0.5.3 [INFO] [stderr] Compiling serde_json v1.0.52 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling flame v0.2.2 [INFO] [stderr] Compiling flamer v0.3.0 [INFO] [stderr] Compiling zub v0.3.14 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(vec_drain_as_slice)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use] extern crate flamer; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tag::*` [INFO] [stdout] --> src/vm/value/object.rs:1:28 [INFO] [stdout] | [INFO] [stdout] 1 | use super::super::gc::{ *, tag::*, trace::* }; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::compiler::CompileState` [INFO] [stdout] --> src/vm/vm.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use super::compiler::CompileState; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Trace` and `Tracer` [INFO] [stdout] --> src/vm/disassembler.rs:2:18 [INFO] [stdout] | [INFO] [stdout] 2 | use gc::trace::{ Trace, Tracer }; [INFO] [stdout] | ^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `vec_drain_as_slice` has been stable since 1.46.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(vec_drain_as_slice)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules [INFO] [stdout] --> src/vm/mod.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning[E0170]: pattern binding `Nil` is named the same as one of the variants of the type `vm::value::value::Variant` [INFO] [stdout] --> src/vm/vm.rs:572:13 [INFO] [stdout] | [INFO] [stdout] 572 | Nil => HashVariant::Nil, [INFO] [stdout] | ^^^ help: to match on the variant, qualify the path: `vm::value::value::Variant::Nil` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bindings_with_variant_name)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `Nil` [INFO] [stdout] --> src/vm/vm.rs:572:13 [INFO] [stdout] | [INFO] [stdout] 572 | Nil => HashVariant::Nil, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_Nil` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/compiler/compiler.rs:663:13 [INFO] [stdout] | [INFO] [stdout] 663 | _ => panic!("not a constant") [INFO] [stdout] | ^ no value can reach this [INFO] [stdout] | [INFO] [stdout] note: multiple earlier patterns match some of the same values [INFO] [stdout] --> src/compiler/compiler.rs:663:13 [INFO] [stdout] | [INFO] [stdout] 651 | Nil => self.emit(Op::Nil), [INFO] [stdout] | --- matches some of the same values [INFO] [stdout] 652 | Boolean(b) => self.emit(if b { Op::True} else { Op::False } ), [INFO] [stdout] | ---------- matches some of the same values [INFO] [stdout] 653 | Number(n) => self.emit_number_literal(n), [INFO] [stdout] | --------- matches some of the same values [INFO] [stdout] 654 | String(ref s) => { [INFO] [stdout] | ------------- matches some of the same values [INFO] [stdout] ... [INFO] [stdout] 663 | _ => panic!("not a constant") [INFO] [stdout] | ^ collectively making this unreachable [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0170, E0554. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0170`. [INFO] [stdout] [INFO] [stderr] error: could not compile `zub` (lib) due to 1 previous error; 9 warnings emitted [INFO] running `Command { std: "docker" "inspect" "20baf14cacbf6e7625b0890d633595c8801d712c7ec6dbd59eb24de0b5e46a24", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20baf14cacbf6e7625b0890d633595c8801d712c7ec6dbd59eb24de0b5e46a24", kill_on_drop: false }` [INFO] [stdout] 20baf14cacbf6e7625b0890d633595c8801d712c7ec6dbd59eb24de0b5e46a24