[INFO] cloning repository https://github.com/FuSoftware/Rust-Parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FuSoftware/Rust-Parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuSoftware%2FRust-Parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuSoftware%2FRust-Parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0a59b67f65ad3e05ce00ffd36fac958dbb77e45
[INFO] testing FuSoftware/Rust-Parser against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFuSoftware%2FRust-Parser" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FuSoftware/Rust-Parser on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FuSoftware/Rust-Parser
[INFO] finished tweaking git repo https://github.com/FuSoftware/Rust-Parser
[INFO] tweaked toml for git repo https://github.com/FuSoftware/Rust-Parser written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/FuSoftware/Rust-Parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9235165d85e239f027274c5ff8a387de640873f04de2f2944ae97b23354046e
[INFO] running `Command { std: "docker" "start" "-a" "e9235165d85e239f027274c5ff8a387de640873f04de2f2944ae97b23354046e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9235165d85e239f027274c5ff8a387de640873f04de2f2944ae97b23354046e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9235165d85e239f027274c5ff8a387de640873f04de2f2944ae97b23354046e", kill_on_drop: false }`
[INFO] [stdout] e9235165d85e239f027274c5ff8a387de640873f04de2f2944ae97b23354046e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad07acd21cf0d9c51d8606cfb6e65589ca41cce66f3575e9151a1d69e4654129
[INFO] running `Command { std: "docker" "start" "-a" "ad07acd21cf0d9c51d8606cfb6e65589ca41cce66f3575e9151a1d69e4654129", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `peek_one`
[INFO] [stdout]   --> src/parsing/lexer.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn peek_one<T>(&mut self, c: char, v: T) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "ad07acd21cf0d9c51d8606cfb6e65589ca41cce66f3575e9151a1d69e4654129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad07acd21cf0d9c51d8606cfb6e65589ca41cce66f3575e9151a1d69e4654129", kill_on_drop: false }`
[INFO] [stdout] ad07acd21cf0d9c51d8606cfb6e65589ca41cce66f3575e9151a1d69e4654129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e682c7de57aa5974d7b80635df0be9fa46533f6b58d27bfe69e7088f84db5129
[INFO] running `Command { std: "docker" "start" "-a" "e682c7de57aa5974d7b80635df0be9fa46533f6b58d27bfe69e7088f84db5129", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: associated function is never used: `peek_one`
[INFO] [stdout]   --> src/parsing/lexer.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn peek_one<T>(&mut self, c: char, v: T) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `peek_one`
[INFO] [stdout]   --> src/parsing/lexer.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn peek_one<T>(&mut self, c: char, v: T) -> Option<T> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 34.86s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e682c7de57aa5974d7b80635df0be9fa46533f6b58d27bfe69e7088f84db5129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e682c7de57aa5974d7b80635df0be9fa46533f6b58d27bfe69e7088f84db5129", kill_on_drop: false }`
[INFO] [stdout] e682c7de57aa5974d7b80635df0be9fa46533f6b58d27bfe69e7088f84db5129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e51837570953dce2fe97617cf3efccc65ec5d2e05c3a0f00cd0ded6a2a4a2c4
[INFO] running `Command { std: "docker" "start" "-a" "8e51837570953dce2fe97617cf3efccc65ec5d2e05c3a0f00cd0ded6a2a4a2c4", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `peek_one`
[INFO] [stderr]   --> src/parsing/lexer.rs:15:8
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn peek_one<T>(&mut self, c: char, v: T) -> Option<T> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_compiler` (lib) generated 1 warning
[INFO] [stderr] warning: `rust_compiler` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_compiler-6190278e3324ef83)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_compiler-802c53aeb458641f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_compiler
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e51837570953dce2fe97617cf3efccc65ec5d2e05c3a0f00cd0ded6a2a4a2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e51837570953dce2fe97617cf3efccc65ec5d2e05c3a0f00cd0ded6a2a4a2c4", kill_on_drop: false }`
[INFO] [stdout] 8e51837570953dce2fe97617cf3efccc65ec5d2e05c3a0f00cd0ded6a2a4a2c4