[INFO] fetching crate marx 0.0.3...
[INFO] testing marx-0.0.3 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate marx 0.0.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate marx 0.0.3
[INFO] finished tweaking crates.io crate marx 0.0.3
[INFO] tweaked toml for crates.io crate marx 0.0.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate marx 0.0.3 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5afeb94efe1e4dc6e885df475c7a19b1fb4e52ad5680e87faf43b4f8e864bc9
[INFO] running `Command { std: "docker" "start" "-a" "b5afeb94efe1e4dc6e885df475c7a19b1fb4e52ad5680e87faf43b4f8e864bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5afeb94efe1e4dc6e885df475c7a19b1fb4e52ad5680e87faf43b4f8e864bc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5afeb94efe1e4dc6e885df475c7a19b1fb4e52ad5680e87faf43b4f8e864bc9", kill_on_drop: false }`
[INFO] [stdout] b5afeb94efe1e4dc6e885df475c7a19b1fb4e52ad5680e87faf43b4f8e864bc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1438625f43f0c2d956b20d88a4ef2dfc6137eb47d069212803f6293f6ca01e31
[INFO] running `Command { std: "docker" "start" "-a" "1438625f43f0c2d956b20d88a4ef2dfc6137eb47d069212803f6293f6ca01e31", kill_on_drop: false }`
[INFO] [stderr]    Compiling marx v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     (unboosted.exp() - 1.)
[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] 166 -     (unboosted.exp() - 1.)
[INFO] [stdout] 166 +     unboosted.exp() - 1.
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "1438625f43f0c2d956b20d88a4ef2dfc6137eb47d069212803f6293f6ca01e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1438625f43f0c2d956b20d88a4ef2dfc6137eb47d069212803f6293f6ca01e31", kill_on_drop: false }`
[INFO] [stdout] 1438625f43f0c2d956b20d88a4ef2dfc6137eb47d069212803f6293f6ca01e31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdbc6fe7666f0c8e2019449caf74f2a0f373e3a722bce58a5f217231d32a445d
[INFO] running `Command { std: "docker" "start" "-a" "fdbc6fe7666f0c8e2019449caf74f2a0f373e3a722bce58a5f217231d32a445d", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     (unboosted.exp() - 1.)
[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] 166 -     (unboosted.exp() - 1.)
[INFO] [stdout] 166 +     unboosted.exp() - 1.
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling marx v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 |     (unboosted.exp() - 1.)
[INFO] [stdout]     |     ^                    ^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:26:24
[INFO] [stdout]     |
[INFO] [stdout]  26 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]     |                        ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(unused_parens)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 166 -     (unboosted.exp() - 1.)
[INFO] [stdout] 166 +     unboosted.exp() - 1.
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `marx` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fdbc6fe7666f0c8e2019449caf74f2a0f373e3a722bce58a5f217231d32a445d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdbc6fe7666f0c8e2019449caf74f2a0f373e3a722bce58a5f217231d32a445d", kill_on_drop: false }`
[INFO] [stdout] fdbc6fe7666f0c8e2019449caf74f2a0f373e3a722bce58a5f217231d32a445d