[INFO] cloning repository https://github.com/reidswan/rlox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reidswan/rlox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Frlox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Frlox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b926b2c59ce1f8b7be8bec6dfbf1aaaceb9ebab
[INFO] testing reidswan/rlox against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Frlox" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reidswan/rlox on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reidswan/rlox
[INFO] finished tweaking git repo https://github.com/reidswan/rlox
[INFO] tweaked toml for git repo https://github.com/reidswan/rlox written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/reidswan/rlox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30ad961eec4fb3474b897bbda4b00d31ffaf2027297b2b2a49ff8b18a0f7dfab
[INFO] running `Command { std: "docker" "start" "-a" "30ad961eec4fb3474b897bbda4b00d31ffaf2027297b2b2a49ff8b18a0f7dfab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30ad961eec4fb3474b897bbda4b00d31ffaf2027297b2b2a49ff8b18a0f7dfab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ad961eec4fb3474b897bbda4b00d31ffaf2027297b2b2a49ff8b18a0f7dfab", kill_on_drop: false }`
[INFO] [stdout] 30ad961eec4fb3474b897bbda4b00d31ffaf2027297b2b2a49ff8b18a0f7dfab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15568c0692f7a076e5c1447ec442d19daee6a524f4093692637c8f01064ff51b
[INFO] running `Command { std: "docker" "start" "-a" "15568c0692f7a076e5c1447ec442d19daee6a524f4093692637c8f01064ff51b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling treelox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:83:41
[INFO] [stdout]     |
[INFO] [stdout] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 84  | |         let should_match = $self
[INFO] [stdout] 85  | |             .peek()
[INFO] [stdout] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stdout] ...   |
[INFO] [stdout] 97  | |         }
[INFO] [stdout] 98  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 236 |           consume!(self, Token::Semicolon);
[INFO] [stdout]     |           -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:83:41
[INFO] [stdout]     |
[INFO] [stdout] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 84  | |         let should_match = $self
[INFO] [stdout] 85  | |             .peek()
[INFO] [stdout] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stdout] ...   |
[INFO] [stdout] 97  | |         }
[INFO] [stdout] 98  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 249 |           consume!(self, Token::Semicolon);
[INFO] [stdout]     |           -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:83:41
[INFO] [stdout]     |
[INFO] [stdout] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 84  | |         let should_match = $self
[INFO] [stdout] 85  | |             .peek()
[INFO] [stdout] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stdout] ...   |
[INFO] [stdout] 97  | |         }
[INFO] [stdout] 98  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 261 |           consume!(self, Token::RightParen);
[INFO] [stdout]     |           --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.25s
[INFO] running `Command { std: "docker" "inspect" "15568c0692f7a076e5c1447ec442d19daee6a524f4093692637c8f01064ff51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15568c0692f7a076e5c1447ec442d19daee6a524f4093692637c8f01064ff51b", kill_on_drop: false }`
[INFO] [stdout] 15568c0692f7a076e5c1447ec442d19daee6a524f4093692637c8f01064ff51b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3a33ee653e3597157e43fa8b9a8d5c8b7acd9a7c2867e47eec8ab8cb846baf1
[INFO] running `Command { std: "docker" "start" "-a" "d3a33ee653e3597157e43fa8b9a8d5c8b7acd9a7c2867e47eec8ab8cb846baf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling treelox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:83:41
[INFO] [stdout]     |
[INFO] [stdout] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 84  | |         let should_match = $self
[INFO] [stdout] 85  | |             .peek()
[INFO] [stdout] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stdout] ...   |
[INFO] [stdout] 97  | |         }
[INFO] [stdout] 98  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 236 |           consume!(self, Token::Semicolon);
[INFO] [stdout]     |           -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:83:41
[INFO] [stdout]     |
[INFO] [stdout] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 84  | |         let should_match = $self
[INFO] [stdout] 85  | |             .peek()
[INFO] [stdout] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stdout] ...   |
[INFO] [stdout] 97  | |         }
[INFO] [stdout] 98  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 249 |           consume!(self, Token::Semicolon);
[INFO] [stdout]     |           -------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/parser.rs:83:41
[INFO] [stdout]     |
[INFO] [stdout] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 84  | |         let should_match = $self
[INFO] [stdout] 85  | |             .peek()
[INFO] [stdout] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stdout] ...   |
[INFO] [stdout] 97  | |         }
[INFO] [stdout] 98  | |     }};
[INFO] [stdout]     | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 261 |           consume!(self, Token::RightParen);
[INFO] [stdout]     |           --------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "d3a33ee653e3597157e43fa8b9a8d5c8b7acd9a7c2867e47eec8ab8cb846baf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a33ee653e3597157e43fa8b9a8d5c8b7acd9a7c2867e47eec8ab8cb846baf1", kill_on_drop: false }`
[INFO] [stdout] d3a33ee653e3597157e43fa8b9a8d5c8b7acd9a7c2867e47eec8ab8cb846baf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8fe52279f4e66c78ad72bd2f97d750b9a4b5b2231f2bd8f3afc00c2ad9257a8b
[INFO] running `Command { std: "docker" "start" "-a" "8fe52279f4e66c78ad72bd2f97d750b9a4b5b2231f2bd8f3afc00c2ad9257a8b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/parser.rs:83:41
[INFO] [stderr]     |
[INFO] [stderr] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 84  | |         let should_match = $self
[INFO] [stderr] 85  | |             .peek()
[INFO] [stderr] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stderr] ...   |
[INFO] [stderr] 97  | |         }
[INFO] [stderr] 98  | |     }};
[INFO] [stderr]     | |_____^
[INFO] [stderr] ...
[INFO] [stderr] 236 |           consume!(self, Token::Semicolon);
[INFO] [stderr]     |           -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/parser.rs:83:41
[INFO] [stderr]     |
[INFO] [stderr] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 84  | |         let should_match = $self
[INFO] [stderr] 85  | |             .peek()
[INFO] [stderr] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stderr] ...   |
[INFO] [stderr] 97  | |         }
[INFO] [stderr] 98  | |     }};
[INFO] [stderr]     | |_____^
[INFO] [stderr] ...
[INFO] [stderr] 249 |           consume!(self, Token::Semicolon);
[INFO] [stderr]     |           -------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/parser.rs:83:41
[INFO] [stderr]     |
[INFO] [stderr] 83  |       ($self:ident, $token_type:path) => {{
[INFO] [stderr]     |  _________________________________________^
[INFO] [stderr] 84  | |         let should_match = $self
[INFO] [stderr] 85  | |             .peek()
[INFO] [stderr] 86  | |             .ok_or(format!("EOF: Expected {} but got EOF", $token_type))?;
[INFO] [stderr] ...   |
[INFO] [stderr] 97  | |         }
[INFO] [stderr] 98  | |     }};
[INFO] [stderr]     | |_____^
[INFO] [stderr] ...
[INFO] [stderr] 261 |           consume!(self, Token::RightParen);
[INFO] [stderr]     |           --------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in the macro `consume` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `treelox` (bin "treelox" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/treelox-d61e1118a1b13bea)
[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" "8fe52279f4e66c78ad72bd2f97d750b9a4b5b2231f2bd8f3afc00c2ad9257a8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fe52279f4e66c78ad72bd2f97d750b9a4b5b2231f2bd8f3afc00c2ad9257a8b", kill_on_drop: false }`
[INFO] [stdout] 8fe52279f4e66c78ad72bd2f97d750b9a4b5b2231f2bd8f3afc00c2ad9257a8b