[INFO] cloning repository https://github.com/shivrm/mathrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shivrm/mathrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshivrm%2Fmathrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshivrm%2Fmathrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68e14c18c00579a007693a8907a154bec672f1b7
[INFO] testing shivrm/mathrs against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshivrm%2Fmathrs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shivrm/mathrs
[INFO] finished tweaking git repo https://github.com/shivrm/mathrs
[INFO] tweaked toml for git repo https://github.com/shivrm/mathrs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shivrm/mathrs on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shivrm/mathrs 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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa569cf50672bd198b14287b31cdd8c98c9a2620fdf78c4fbedc649a10f4283
[INFO] running `Command { std: "docker" "start" "-a" "bfa569cf50672bd198b14287b31cdd8c98c9a2620fdf78c4fbedc649a10f4283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa569cf50672bd198b14287b31cdd8c98c9a2620fdf78c4fbedc649a10f4283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa569cf50672bd198b14287b31cdd8c98c9a2620fdf78c4fbedc649a10f4283", kill_on_drop: false }`
[INFO] [stdout] bfa569cf50672bd198b14287b31cdd8c98c9a2620fdf78c4fbedc649a10f4283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc1e4e5c641da3284820e825d3c6b63ab8afaf80f2f42fbe55547cc6ab13f4fa
[INFO] running `Command { std: "docker" "start" "-a" "cc1e4e5c641da3284820e825d3c6b63ab8afaf80f2f42fbe55547cc6ab13f4fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathrs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/mathrs/parser.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => (())
[INFO] [stdout]    |                  ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 73 -             _ => (())
[INFO] [stdout] 73 +             _ => () 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lexer::Lexer`
[INFO] [stdout]  --> src/mathrs.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use lexer::Lexer;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mathrs/lexer.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Identifier(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 19 -     Identifier(String),
[INFO] [stdout] 19 +     Identifier(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "cc1e4e5c641da3284820e825d3c6b63ab8afaf80f2f42fbe55547cc6ab13f4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc1e4e5c641da3284820e825d3c6b63ab8afaf80f2f42fbe55547cc6ab13f4fa", kill_on_drop: false }`
[INFO] [stdout] cc1e4e5c641da3284820e825d3c6b63ab8afaf80f2f42fbe55547cc6ab13f4fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daee5a1ea11c5d9f0022734aa4d8c4b02d91ea0145a0227e7ba155d8245c4825
[INFO] running `Command { std: "docker" "start" "-a" "daee5a1ea11c5d9f0022734aa4d8c4b02d91ea0145a0227e7ba155d8245c4825", kill_on_drop: false }`
[INFO] [stderr]    Compiling mathrs v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]   --> src/mathrs/parser.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |             _ => (())
[INFO] [stdout]    |                  ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 73 -             _ => (())
[INFO] [stdout] 73 +             _ => () 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lexer::Lexer`
[INFO] [stdout]  --> src/mathrs.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use lexer::Lexer;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/mathrs/lexer.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Identifier(String),
[INFO] [stdout]    |     ---------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 19 -     Identifier(String),
[INFO] [stdout] 19 +     Identifier(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "daee5a1ea11c5d9f0022734aa4d8c4b02d91ea0145a0227e7ba155d8245c4825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daee5a1ea11c5d9f0022734aa4d8c4b02d91ea0145a0227e7ba155d8245c4825", kill_on_drop: false }`
[INFO] [stdout] daee5a1ea11c5d9f0022734aa4d8c4b02d91ea0145a0227e7ba155d8245c4825
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30baac85734372280f98b6c37e52b2048267ab34948e89b8568f0e3c846e3c71
[INFO] running `Command { std: "docker" "start" "-a" "30baac85734372280f98b6c37e52b2048267ab34948e89b8568f0e3c846e3c71", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around match arm expression
[INFO] [stderr]   --> src/mathrs/parser.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |             _ => (())
[INFO] [stderr]    |                  ^  ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 73 -             _ => (())
[INFO] [stderr] 73 +             _ => () 
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `lexer::Lexer`
[INFO] [stderr]  --> src/mathrs.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub use lexer::Lexer;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/mathrs/lexer.rs:19:16
[INFO] [stderr]    |
[INFO] [stderr] 19 |     Identifier(String),
[INFO] [stderr]    |     ---------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 19 -     Identifier(String),
[INFO] [stderr] 19 +     Identifier(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `mathrs` (bin "mathrs" test) generated 3 warnings (run `cargo fix --bin "mathrs" -p mathrs --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mathrs-b9049fdd9d1359cc)
[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" "30baac85734372280f98b6c37e52b2048267ab34948e89b8568f0e3c846e3c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30baac85734372280f98b6c37e52b2048267ab34948e89b8568f0e3c846e3c71", kill_on_drop: false }`
[INFO] [stdout] 30baac85734372280f98b6c37e52b2048267ab34948e89b8568f0e3c846e3c71
