[INFO] cloning repository https://github.com/kendra-pdx/higher-mt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kendra-pdx/higher-mt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkendra-pdx%2Fhigher-mt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkendra-pdx%2Fhigher-mt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b8de49e69c2bdc537ea1377e34f9c255a16c8de
[INFO] checking kendra-pdx/higher-mt against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkendra-pdx%2Fhigher-mt" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kendra-pdx/higher-mt on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kendra-pdx/higher-mt
[INFO] finished tweaking git repo https://github.com/kendra-pdx/higher-mt
[INFO] tweaked toml for git repo https://github.com/kendra-pdx/higher-mt written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kendra-pdx/higher-mt 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded higher-derive v0.2.0
[INFO] [stderr]   Downloaded higher v0.2.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45bb32c97a1fdfcd71c53116b4ec36da9baa2bc2ed441a3ff58adacd3b7dc7e8
[INFO] running `Command { std: "docker" "start" "-a" "45bb32c97a1fdfcd71c53116b4ec36da9baa2bc2ed441a3ff58adacd3b7dc7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45bb32c97a1fdfcd71c53116b4ec36da9baa2bc2ed441a3ff58adacd3b7dc7e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45bb32c97a1fdfcd71c53116b4ec36da9baa2bc2ed441a3ff58adacd3b7dc7e8", kill_on_drop: false }`
[INFO] [stdout] 45bb32c97a1fdfcd71c53116b4ec36da9baa2bc2ed441a3ff58adacd3b7dc7e8
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df11b639e8d5676ca00ff0b47ee353ae755e0bc184f07058728d8ba47a2f20e5
[INFO] running `Command { std: "docker" "start" "-a" "df11b639e8d5676ca00ff0b47ee353ae755e0bc184f07058728d8ba47a2f20e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]    Compiling higher-derive v0.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking higher v0.2.0
[INFO] [stderr]     Checking higher-mt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/option.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         f: <Self as Apply<'a, A>>::Target<higher::apply::ApplyFn<'a, A, B>>,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/option.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         f: <Self as Apply<'a, A>>::Target<higher::apply::ApplyFn<'a, A, B>>,
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ot`
[INFO] [stdout]    --> src/option.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let ot = OptionT::from(Some(Some("x")));
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_ot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.46s
[INFO] running `Command { std: "docker" "inspect" "df11b639e8d5676ca00ff0b47ee353ae755e0bc184f07058728d8ba47a2f20e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df11b639e8d5676ca00ff0b47ee353ae755e0bc184f07058728d8ba47a2f20e5", kill_on_drop: false }`
[INFO] [stdout] df11b639e8d5676ca00ff0b47ee353ae755e0bc184f07058728d8ba47a2f20e5