[INFO] cloning repository https://github.com/theidiotmachine/WA1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theidiotmachine/WA1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheidiotmachine%2FWA1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheidiotmachine%2FWA1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f93c8ff5268eaf13da4a53b04c9819ba563c692
[INFO] checking theidiotmachine/WA1 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheidiotmachine%2FWA1" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theidiotmachine/WA1 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/theidiotmachine/WA1
[INFO] finished tweaking git repo https://github.com/theidiotmachine/WA1
[INFO] tweaked toml for git repo https://github.com/theidiotmachine/WA1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/theidiotmachine/WA1 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking wa1-errs v0.0.1 (/opt/rustwide/workdir/wa1-errs)
[INFO] [stderr]     Checking wa1-lexer v0.0.1 (/opt/rustwide/workdir/wa1-lexer)
[INFO] [stderr]     Checking wa1-ast v0.4.0 (/opt/rustwide/workdir/wa1-ast)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> wa1-lexer/src/lib.rs:341:21
[INFO] [stdout]     |
[INFO] [stdout] 341 | /                     ::std::mem::replace(
[INFO] [stdout] 342 | |                         &mut self.before_last_open,
[INFO] [stdout] 343 | |                         ::std::mem::replace(&mut self.last_three, LookBehind::new()),
[INFO] [stdout] 344 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 341 |                     let _ = ::std::mem::replace(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> wa1-lexer/src/lib.rs:341:21
[INFO] [stdout]     |
[INFO] [stdout] 341 | /                     ::std::mem::replace(
[INFO] [stdout] 342 | |                         &mut self.before_last_open,
[INFO] [stdout] 343 | |                         ::std::mem::replace(&mut self.last_three, LookBehind::new()),
[INFO] [stdout] 344 | |                     );
[INFO] [stdout]     | |_____________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 341 |                     let _ = ::std::mem::replace(
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wa1-parser v0.0.1 (/opt/rustwide/workdir/wa1-parser)
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]  --> wa1-parser/src/parser/parser_option.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use wa1_errs::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]   --> wa1-parser/src/parser/parser_phase_1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use wa1_errs::Error;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]  --> wa1-parser/src/parser/parser_typeguard.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use wa1_errs::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> wa1-parser/src/parser/mod.rs:43:30
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ImportFilter::All => (exports),
[INFO] [stdout]    |                              ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -         ImportFilter::All => (exports),
[INFO] [stdout] 43 +         ImportFilter::All => exports,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]  --> wa1-parser/src/tree_transform/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use wa1_errs::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]  --> wa1-parser/src/parser/parser_option.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use wa1_errs::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]   --> wa1-parser/src/parser/parser_phase_1.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use wa1_errs::Error;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]  --> wa1-parser/src/parser/parser_typeguard.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use wa1_errs::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> wa1-parser/src/parser/mod.rs:43:30
[INFO] [stdout]    |
[INFO] [stdout] 43 |         ImportFilter::All => (exports),
[INFO] [stdout]    |                              ^       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -         ImportFilter::All => (exports),
[INFO] [stdout] 43 +         ImportFilter::All => exports,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wa1_errs::Error`
[INFO] [stdout]  --> wa1-parser/src/tree_transform/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use wa1_errs::Error;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> wa1-parser/src/parser/mod.rs:38:11
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Named(Vec<String>)
[INFO] [stdout]    |     ----- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Named(())
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> wa1-parser/src/parser/mod.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 replace(&mut self.look_ahead, look_ahead);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 let _ = replace(&mut self.look_ahead, look_ahead);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> wa1-parser/src/parser/mod.rs:38:11
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Named(Vec<String>)
[INFO] [stdout]    |     ----- ^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 38 |     Named(())
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> wa1-parser/src/parser/mod.rs:173:17
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 replace(&mut self.look_ahead, look_ahead);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 let _ = replace(&mut self.look_ahead, look_ahead);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wa1-generator v0.0.1 (/opt/rustwide/workdir/wa1-generator)
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.50.0
[INFO] [stdout] warning: variants `SymTabEvent` and `SymTabTable` are never constructed
[INFO] [stdout]   --> wa1-generator/src/wasm/wasm_object_file.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | enum WasmSymInfoKind{
[INFO] [stdout]    |      --------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     SymTabEvent = 4,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 19 |     ///SYMTAB_TABLE
[INFO] [stdout] 20 |     SymTabTable = 5,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WasmSymInfoKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `SymTabEvent` and `SymTabTable` are never constructed
[INFO] [stdout]   --> wa1-generator/src/wasm/wasm_object_file.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | enum WasmSymInfoKind{
[INFO] [stdout]    |      --------------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     SymTabEvent = 4,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 19 |     ///SYMTAB_TABLE
[INFO] [stdout] 20 |     SymTabTable = 5,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WasmSymInfoKind` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wa1 v0.1.0 (/opt/rustwide/workdir/wa1)
[INFO] [stderr]    Compiling cranelift-codegen v0.50.0
[INFO] [stderr]     Checking zstd-safe v2.0.3+zstd.1.4.4
[INFO] [stderr]     Checking zstd v0.5.1+zstd.1.4.4
[INFO] [stderr]     Checking cranelift-frontend v0.50.0
[INFO] [stderr]     Checking cranelift-native v0.50.0
[INFO] [stderr]     Checking cranelift-wasm v0.50.0
[INFO] [stderr]     Checking wasmtime-debug v0.8.0
[INFO] [stderr]     Checking wasmtime-jit v0.8.0
[INFO] [stderr]     Checking wasmtime v0.8.0
[INFO] [stderr]     Checking test-runner v0.1.0 (/opt/rustwide/workdir/test-runner)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cranelift-codegen-meta v0.50.0, wasmtime-environ v0.8.0
[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" "f46111a5377761d45174c1d444d2d49c05aea0230b395356607e790584736f9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46111a5377761d45174c1d444d2d49c05aea0230b395356607e790584736f9b", kill_on_drop: false }`
[INFO] [stdout] f46111a5377761d45174c1d444d2d49c05aea0230b395356607e790584736f9b
