[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#21de280cccb4eb02ead6bf0af40e2355a9136d6f for pr-100043-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheidiotmachine%2FWA1" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theidiotmachine/WA1 on toolchain 21de280cccb4eb02ead6bf0af40e2355a9136d6f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "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-2/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: "/workspace/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c24b105e41f5099f2efca1a9767c6fe23ecddd2cebce859900a4bd2a6de86466
[INFO] running `Command { std: "docker" "start" "-a" "c24b105e41f5099f2efca1a9767c6fe23ecddd2cebce859900a4bd2a6de86466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c24b105e41f5099f2efca1a9767c6fe23ecddd2cebce859900a4bd2a6de86466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24b105e41f5099f2efca1a9767c6fe23ecddd2cebce859900a4bd2a6de86466", kill_on_drop: false }`
[INFO] [stdout] c24b105e41f5099f2efca1a9767c6fe23ecddd2cebce859900a4bd2a6de86466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+21de280cccb4eb02ead6bf0af40e2355a9136d6f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b245d41e97fb8674ac5d00f40823b62f13b5828c347e3ffeb995356b1d56beb
[INFO] running `Command { std: "docker" "start" "-a" "3b245d41e97fb8674ac5d00f40823b62f13b5828c347e3ffeb995356b1d56beb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
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[INFO] [stderr]    Compiling libc v0.2.65
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[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking cfg-if v0.1.10
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[INFO] [stderr]    Compiling bitflags v1.2.1
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[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking more-asserts v0.2.1
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking gimli v0.19.0
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking atty v0.2.13
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[INFO] [stderr]     Checking rayon v1.2.1
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[INFO] [stderr]     Checking file-per-thread-logger v0.1.2
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[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling scroll_derive v0.10.1
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking goblin v0.1.2
[INFO] [stderr]     Checking thiserror v1.0.9
[INFO] [stderr]     Checking wa1-types v0.1.0 (/opt/rustwide/workdir/wa1-types)
[INFO] [stderr]     Checking cranelift-entity v0.50.0
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking string-interner v0.7.1
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking faerie v0.13.0
[INFO] [stderr]     Checking cranelift-bforest v0.50.0
[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] [stderr]    Compiling cranelift-codegen-meta v0.50.0
[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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[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 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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wa1-generator v0.0.1 (/opt/rustwide/workdir/wa1-generator)
[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: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[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: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `WasmSymInfoKind` 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: 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: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `WasmSymInfoKind` 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: 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]     Checking zstd-safe v2.0.3+zstd.1.4.4
[INFO] [stderr]     Checking zstd v0.5.1+zstd.1.4.4
[INFO] [stderr]    Compiling cranelift-codegen v0.50.0
[INFO] [stderr]     Checking cranelift-frontend v0.50.0
[INFO] [stderr]     Checking cranelift-native v0.50.0
[INFO] [stderr]     Checking cranelift-wasm v0.50.0
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[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 1m 10s
[INFO] running `Command { std: "docker" "inspect" "3b245d41e97fb8674ac5d00f40823b62f13b5828c347e3ffeb995356b1d56beb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b245d41e97fb8674ac5d00f40823b62f13b5828c347e3ffeb995356b1d56beb", kill_on_drop: false }`
[INFO] [stdout] 3b245d41e97fb8674ac5d00f40823b62f13b5828c347e3ffeb995356b1d56beb