[INFO] cloning repository https://github.com/EMattfolk/FallGameJam2021 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EMattfolk/FallGameJam2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEMattfolk%2FFallGameJam2021", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEMattfolk%2FFallGameJam2021'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 14e12e47439ab0bb69ba4cb78305b9d873fca3aa [INFO] checking EMattfolk/FallGameJam2021 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEMattfolk%2FFallGameJam2021" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/EMattfolk/FallGameJam2021 [INFO] finished tweaking git repo https://github.com/EMattfolk/FallGameJam2021 [INFO] tweaked toml for git repo https://github.com/EMattfolk/FallGameJam2021 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/EMattfolk/FallGameJam2021 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/EMattfolk/FallGameJam2021 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 505874adf597c4777c0783b214dce627f31c4638a10b43ab641ec7ad80e3c303 [INFO] running `Command { std: "docker" "start" "-a" "505874adf597c4777c0783b214dce627f31c4638a10b43ab641ec7ad80e3c303", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "505874adf597c4777c0783b214dce627f31c4638a10b43ab641ec7ad80e3c303", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "505874adf597c4777c0783b214dce627f31c4638a10b43ab641ec7ad80e3c303", kill_on_drop: false }` [INFO] [stdout] 505874adf597c4777c0783b214dce627f31c4638a10b43ab641ec7ad80e3c303 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f36b4c09df29d90983f8b1e6f6f5376005ce7d43440c45e715c09aca3a9b8312 [INFO] running `Command { std: "docker" "start" "-a" "f36b4c09df29d90983f8b1e6f6f5376005ce7d43440c45e715c09aca3a9b8312", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling beef v0.5.1 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Checking sungod v0.3.1 [INFO] [stderr] Compiling sylt v0.2.0 (/opt/rustwide/workdir/sylt) [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Checking quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Checking sylt-macro v0.2.0 (/opt/rustwide/workdir/sylt-macro) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> sylt-macro/src/macro.rs:464:9 [INFO] [stdout] | [INFO] [stdout] 464 | let mut link = if let Some(link) = link.get_mut(&module) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> sylt-macro/src/macro.rs:464:9 [INFO] [stdout] | [INFO] [stdout] 464 | let mut link = if let Some(link) = link.get_mut(&module) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling logos-derive v0.12.0 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Compiling gumdrop_derive v0.8.0 [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> sylt-macro/src/macro.rs:464:9 [INFO] [stdout] | [INFO] [stdout] 464 | let mut link = if let Some(link) = link.get_mut(&module) { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking gumdrop v0.8.0 [INFO] [stderr] Checking logos v0.12.0 [INFO] [stderr] Checking sylt-tokenizer v0.2.0 (/opt/rustwide/workdir/sylt-tokenizer) [INFO] [stderr] Checking sylt-common v0.2.0 (/opt/rustwide/workdir/sylt-common) [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> sylt-common/src/lib.rs:35:24 [INFO] [stdout] | [INFO] [stdout] 35 | fn stack_from_base(&self, base: usize) -> Cow<[Value]>; [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] 35 | fn stack_from_base(&self, base: usize) -> Cow<'_, [Value]>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sylt-parser v0.2.0 (/opt/rustwide/workdir/sylt-parser) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> sylt-common/src/lib.rs:35:24 [INFO] [stdout] | [INFO] [stdout] 35 | fn stack_from_base(&self, base: usize) -> Cow<[Value]>; [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] 35 | fn stack_from_base(&self, base: usize) -> Cow<'_, [Value]>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sylt-machine v0.2.0 (/opt/rustwide/workdir/sylt-machine) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> sylt-machine/src/vm.rs:256:24 [INFO] [stdout] | [INFO] [stdout] 256 | fn stack_from_base(&self, base: usize) -> Cow<[Value]> { [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] 256 | fn stack_from_base(&self, base: usize) -> Cow<'_, [Value]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sylt-std v0.2.0 (/opt/rustwide/workdir/sylt-std) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> sylt-machine/src/vm.rs:256:24 [INFO] [stdout] | [INFO] [stdout] 256 | fn stack_from_base(&self, base: usize) -> Cow<[Value]> { [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] 256 | fn stack_from_base(&self, base: usize) -> Cow<'_, [Value]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> sylt-parser/src/parser.rs:851:5 [INFO] [stdout] | [INFO] [stdout] 851 | drop(enum_name); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Identifier` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 851 - drop(enum_name); [INFO] [stdout] 851 + let _ = enum_name; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> sylt-parser/src/statement.rs:832:49 [INFO] [stdout] | [INFO] [stdout] 832 | pub fn outer_statement<'t>(ctx: Context<'t>) -> ParseResult { [INFO] [stdout] | -- ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named 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: consistently use `'t` [INFO] [stdout] | [INFO] [stdout] 832 | pub fn outer_statement<'t>(ctx: Context<'t>) -> ParseResult<'t, Statement> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking sylt-compiler v0.2.0 (/opt/rustwide/workdir/sylt-compiler) [INFO] [stdout] warning: field `span` is never read [INFO] [stdout] --> sylt-compiler/src/compiler.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct Upvalue { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 43 | span: Span, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Upvalue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LoopFrame` is never constructed [INFO] [stdout] --> sylt-compiler/src/compiler.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 94 | struct LoopFrame { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `scope` is never read [INFO] [stdout] --> sylt-compiler/src/bytecode.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct BytecodeContext { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 23 | scope: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BytecodeContext` 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: field `span` is never read [INFO] [stdout] --> sylt-compiler/src/compiler.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 37 | struct Upvalue { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 43 | span: Span, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Upvalue` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LoopFrame` is never constructed [INFO] [stdout] --> sylt-compiler/src/compiler.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 94 | struct LoopFrame { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `scope` is never read [INFO] [stdout] --> sylt-compiler/src/bytecode.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct BytecodeContext { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 23 | scope: usize, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BytecodeContext` 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: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> sylt-parser/src/parser.rs:851:5 [INFO] [stdout] | [INFO] [stdout] 851 | drop(enum_name); [INFO] [stdout] | ^^^^^---------^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Identifier` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 851 - drop(enum_name); [INFO] [stdout] 851 + let _ = enum_name; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> sylt-parser/src/statement.rs:832:49 [INFO] [stdout] | [INFO] [stdout] 832 | pub fn outer_statement<'t>(ctx: Context<'t>) -> ParseResult { [INFO] [stdout] | -- ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is named 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: consistently use `'t` [INFO] [stdout] | [INFO] [stdout] 832 | pub fn outer_statement<'t>(ctx: Context<'t>) -> ParseResult<'t, Statement> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> sylt/src/lib.rs:127:26 [INFO] [stdout] | [INFO] [stdout] 127 | #[derive(Default, Debug, Options)] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the derive macro `Options` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `sylt` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> sylt/src/lib.rs:127:26 [INFO] [stdout] | [INFO] [stdout] 127 | #[derive(Default, Debug, Options)] [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the derive macro `Options` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `sylt` (lib test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "f36b4c09df29d90983f8b1e6f6f5376005ce7d43440c45e715c09aca3a9b8312", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f36b4c09df29d90983f8b1e6f6f5376005ce7d43440c45e715c09aca3a9b8312", kill_on_drop: false }` [INFO] [stdout] f36b4c09df29d90983f8b1e6f6f5376005ce7d43440c45e715c09aca3a9b8312