[INFO] cloning repository https://github.com/Skepfyr/rust-issue-86528
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Skepfyr/rust-issue-86528" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkepfyr%2Frust-issue-86528", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkepfyr%2Frust-issue-86528'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0016342c6d267a822d2b43a53b2a522ac4df3f46
[INFO] building Skepfyr/rust-issue-86528 against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSkepfyr%2Frust-issue-86528" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Skepfyr/rust-issue-86528 on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Skepfyr/rust-issue-86528
[INFO] finished tweaking git repo https://github.com/Skepfyr/rust-issue-86528
[INFO] tweaked toml for git repo https://github.com/Skepfyr/rust-issue-86528 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Skepfyr/rust-issue-86528 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" "+334963c956d25708feab489a3816ae63f639355d" "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-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e0129ddedcb54b66347b075ff591864798fd77551684b9f3595fb7909f986f3
[INFO] running `Command { std: "docker" "start" "-a" "1e0129ddedcb54b66347b075ff591864798fd77551684b9f3595fb7909f986f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e0129ddedcb54b66347b075ff591864798fd77551684b9f3595fb7909f986f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e0129ddedcb54b66347b075ff591864798fd77551684b9f3595fb7909f986f3", kill_on_drop: false }`
[INFO] [stdout] 1e0129ddedcb54b66347b075ff591864798fd77551684b9f3595fb7909f986f3
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4382a795a98177fb5c7dff6f423bf98481ecfbb5304e12d2203b0bdfddfe8fe
[INFO] running `Command { std: "docker" "start" "-a" "f4382a795a98177fb5c7dff6f423bf98481ecfbb5304e12d2203b0bdfddfe8fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling dep v0.1.0 (/opt/rustwide/workdir/dep)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> dep/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     f64::from_str("");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let _ = f64::from_str("");
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling my_macro v0.1.0 (/opt/rustwide/workdir/my_macro)
[INFO] [stderr]    Compiling root v0.1.0 (/opt/rustwide/workdir/root)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "f4382a795a98177fb5c7dff6f423bf98481ecfbb5304e12d2203b0bdfddfe8fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4382a795a98177fb5c7dff6f423bf98481ecfbb5304e12d2203b0bdfddfe8fe", kill_on_drop: false }`
[INFO] [stdout] f4382a795a98177fb5c7dff6f423bf98481ecfbb5304e12d2203b0bdfddfe8fe
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5777bef145046c7bc881337640fde1969055651e598669da9a324f372ad8a7c
[INFO] running `Command { std: "docker" "start" "-a" "f5777bef145046c7bc881337640fde1969055651e598669da9a324f372ad8a7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling my_macro v0.1.0 (/opt/rustwide/workdir/my_macro)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> dep/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     f64::from_str("");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let _ = f64::from_str("");
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling dep v0.1.0 (/opt/rustwide/workdir/dep)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> dep/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     f64::from_str("");
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let _ = f64::from_str("");
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling root v0.1.0 (/opt/rustwide/workdir/root)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "f5777bef145046c7bc881337640fde1969055651e598669da9a324f372ad8a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5777bef145046c7bc881337640fde1969055651e598669da9a324f372ad8a7c", kill_on_drop: false }`
[INFO] [stdout] f5777bef145046c7bc881337640fde1969055651e598669da9a324f372ad8a7c