[INFO] fetching crate arclight 0.0.1...
[INFO] checking arclight-0.0.1 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate arclight 0.0.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate arclight 0.0.1 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arclight 0.0.1
[INFO] finished tweaking crates.io crate arclight 0.0.1
[INFO] tweaked toml for crates.io crate arclight 0.0.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae74400c994f72ee5610cf5edb261509f919d9cb35a0d54bd2004fbc14a1315f
[INFO] running `Command { std: "docker" "start" "-a" "ae74400c994f72ee5610cf5edb261509f919d9cb35a0d54bd2004fbc14a1315f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae74400c994f72ee5610cf5edb261509f919d9cb35a0d54bd2004fbc14a1315f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae74400c994f72ee5610cf5edb261509f919d9cb35a0d54bd2004fbc14a1315f", kill_on_drop: false }`
[INFO] [stdout] ae74400c994f72ee5610cf5edb261509f919d9cb35a0d54bd2004fbc14a1315f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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_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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91c84c9d0e472ba251745e25aafb02a3d4436c5b58ce0b6c53f556c8098548ff
[INFO] running `Command { std: "docker" "start" "-a" "91c84c9d0e472ba251745e25aafb02a3d4436c5b58ce0b6c53f556c8098548ff", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking arclight v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generators)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: renamed to `coroutines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/ArclightSyntaxTree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt`
[INFO] [stdout]  --> src/ArclightSyntaxTree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] 54 |             tab_string => TokenType::Tab,
[INFO] [stdout]    |             ^^^^^^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] 54 |             tab_string => TokenType::Tab,
[INFO] [stdout] 55 |             pass_string => TokenType::Pass,
[INFO] [stdout]    |             ^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 56 |             return_string => TokenType::Return,
[INFO] [stdout]    |             ^^^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 57 |             defined_string => TokenType::Defined,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 58 |             _ => TokenType::Photon,
[INFO] [stdout]    |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_string`
[INFO] [stdout]   --> src/Parser.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let new_string = NEW.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tab_string`
[INFO] [stdout]   --> src/Parser.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let tab_string = TAB.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tab_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pass_string`
[INFO] [stdout]   --> src/Parser.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let pass_string = PASS.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pass_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `return_string`
[INFO] [stdout]   --> src/Parser.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let return_string = RETURN.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `defined_string`
[INFO] [stdout]   --> src/Parser.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let defined_string = DEFINED.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_string`
[INFO] [stdout]   --> src/Parser.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tab_string`
[INFO] [stdout]   --> src/Parser.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             tab_string => TokenType::Tab,
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tab_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pass_string`
[INFO] [stdout]   --> src/Parser.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             pass_string => TokenType::Pass,
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pass_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `return_string`
[INFO] [stdout]   --> src/Parser.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             return_string => TokenType::Return,
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `defined_string`
[INFO] [stdout]   --> src/Parser.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             defined_string => TokenType::Defined,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] 54 |             tab_string => TokenType::Tab,
[INFO] [stdout]    |             ^^^^^^^^^^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] 54 |             tab_string => TokenType::Tab,
[INFO] [stdout] 55 |             pass_string => TokenType::Pass,
[INFO] [stdout]    |             ^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 56 |             return_string => TokenType::Return,
[INFO] [stdout]    |             ^^^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 57 |             defined_string => TokenType::Defined,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/Parser.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ---------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 58 |             _ => TokenType::Photon,
[INFO] [stdout]    |             ^ unreachable pattern
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_string`
[INFO] [stdout]   --> src/Parser.rs:46:13
[INFO] [stdout]    |
[INFO] [stdout] 46 |         let new_string = NEW.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tab_string`
[INFO] [stdout]   --> src/Parser.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let tab_string = TAB.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tab_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pass_string`
[INFO] [stdout]   --> src/Parser.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let pass_string = PASS.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pass_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `return_string`
[INFO] [stdout]   --> src/Parser.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let return_string = RETURN.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `defined_string`
[INFO] [stdout]   --> src/Parser.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let defined_string = DEFINED.to_string();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_string`
[INFO] [stdout]   --> src/Parser.rs:53:13
[INFO] [stdout]    |
[INFO] [stdout] 53 |             new_string => TokenType::New,
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tab_string`
[INFO] [stdout]   --> src/Parser.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |             tab_string => TokenType::Tab,
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tab_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pass_string`
[INFO] [stdout]   --> src/Parser.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |             pass_string => TokenType::Pass,
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pass_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `return_string`
[INFO] [stdout]   --> src/Parser.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |             return_string => TokenType::Return,
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_return_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `defined_string`
[INFO] [stdout]   --> src/Parser.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |             defined_string => TokenType::Defined,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_defined_string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual`
[INFO] [stdout]    --> src/Parser.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |         let actual = parse("a b");
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arclight` (lib) due to 2 previous errors; 16 warnings emitted
[INFO] [stdout] error: aborting due to 1 previous error; 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `arclight` (lib test) due to 2 previous errors; 17 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "91c84c9d0e472ba251745e25aafb02a3d4436c5b58ce0b6c53f556c8098548ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c84c9d0e472ba251745e25aafb02a3d4436c5b58ce0b6c53f556c8098548ff", kill_on_drop: false }`
[INFO] [stdout] 91c84c9d0e472ba251745e25aafb02a3d4436c5b58ce0b6c53f556c8098548ff
