[INFO] fetching crate zubbers 0.0.1... [INFO] testing zubbers-0.0.1 against 1.91.0 for beta-1.92-2 [INFO] extracting crate zubbers 0.0.1 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate zubbers 0.0.1 [INFO] finished tweaking crates.io crate zubbers 0.0.1 [INFO] tweaked toml for crates.io crate zubbers 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate zubbers 0.0.1 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate zubbers 0.0.1 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded utf8-ranges v1.0.5 [INFO] [stderr] Downloaded logos-derive v0.11.5 [INFO] [stderr] Downloaded flamer v0.3.0 [INFO] [stderr] Downloaded beef v0.4.4 [INFO] [stderr] Downloaded colored v1.9.3 [INFO] [stderr] Downloaded itoa v1.0.5 [INFO] [stderr] Downloaded ryu v1.0.12 [INFO] [stderr] Downloaded unicode-ident v1.0.6 [INFO] [stderr] Downloaded serde_derive v1.0.152 [INFO] [stderr] Downloaded serde v1.0.152 [INFO] [stderr] Downloaded hashbrown v0.7.2 [INFO] [stderr] Downloaded im-rc v14.3.0 [INFO] [stderr] Downloaded serde_json v1.0.91 [INFO] [stderr] Downloaded syn v1.0.107 [INFO] [stderr] Downloaded sized-chunks v0.5.3 [INFO] [stderr] Downloaded proc-macro2 v1.0.49 [INFO] [stderr] Downloaded quote v1.0.23 [INFO] [stderr] Downloaded flame v0.2.2 [INFO] [stderr] Downloaded ahash v0.3.8 [INFO] [stderr] Downloaded rand_xoshiro v0.4.0 [INFO] [stderr] Downloaded logos v0.11.4 [INFO] [stderr] Downloaded libc v0.2.139 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 878b9b822b0233e88c230fdd32adeb34eddf1a30d96537b6820914698d06de4e [INFO] running `Command { std: "docker" "start" "-a" "878b9b822b0233e88c230fdd32adeb34eddf1a30d96537b6820914698d06de4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "878b9b822b0233e88c230fdd32adeb34eddf1a30d96537b6820914698d06de4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "878b9b822b0233e88c230fdd32adeb34eddf1a30d96537b6820914698d06de4e", kill_on_drop: false }` [INFO] [stdout] 878b9b822b0233e88c230fdd32adeb34eddf1a30d96537b6820914698d06de4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17868b1573f861d87b671b7e476c628584a70e59057f3124b79640ca81d9fd07 [INFO] running `Command { std: "docker" "start" "-a" "17868b1573f861d87b671b7e476c628584a70e59057f3124b79640ca81d9fd07", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling syn v1.0.107 [INFO] [stderr] Compiling typenum v1.16.0 [INFO] [stderr] Compiling serde_derive v1.0.152 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling hashbrown v0.7.2 [INFO] [stderr] Compiling im-rc v14.3.0 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling ahash v0.3.8 [INFO] [stderr] Compiling thread-id v3.3.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling rand_xoshiro v0.4.0 [INFO] [stderr] Compiling colored v1.9.3 [INFO] [stderr] Compiling bitmaps v2.1.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling sized-chunks v0.5.3 [INFO] [stderr] Compiling flame v0.2.2 [INFO] [stderr] Compiling flamer v0.3.0 [INFO] [stderr] Compiling zubbers v0.0.1 (/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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tag::*` [INFO] [stdout] --> src/vm/value/object.rs:1:24 [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:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | 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: unused imports: `rc::Rc` and `sync::Mutex` [INFO] [stdout] --> src/vm/interop.rs:1:11 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{sync::Mutex, rc::Rc}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Heap` [INFO] [stdout] --> src/vm/interop.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | use super::{Heap, Value, VM, Object, WithHeap, Handle}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self::interop::*` [INFO] [stdout] --> src/vm/mod.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | pub use self::interop::*; [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]` attribute cannot be used on use statements [INFO] [stdout] --> src/vm/mod.rs:13:1 [INFO] [stdout] | [INFO] [stdout] 13 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = help: `#[macro_use]` can be applied to modules, extern crates, and crates [INFO] [stdout] = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) 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:610:13 [INFO] [stdout] | [INFO] [stdout] 610 | 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:610:13 [INFO] [stdout] | [INFO] [stdout] 610 | Nil => HashVariant::Nil, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: if this is intentional, prefix it with an underscore [INFO] [stdout] | [INFO] [stdout] 610 | _Nil => HashVariant::Nil, [INFO] [stdout] | + [INFO] [stdout] help: you might have meant to pattern match on the similarly named variant `Nil` [INFO] [stdout] | [INFO] [stdout] 610 | vm::value::value::Variant::Nil => HashVariant::Nil, [INFO] [stdout] | +++++++++++++++++++++++++++ [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)]` (part of `#[warn(unused)]`) 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 `zubbers` (lib) due to 1 previous error; 12 warnings emitted [INFO] running `Command { std: "docker" "inspect" "17868b1573f861d87b671b7e476c628584a70e59057f3124b79640ca81d9fd07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17868b1573f861d87b671b7e476c628584a70e59057f3124b79640ca81d9fd07", kill_on_drop: false }` [INFO] [stdout] 17868b1573f861d87b671b7e476c628584a70e59057f3124b79640ca81d9fd07