[INFO] cloning repository https://github.com/lovesegfault/backhand-async
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lovesegfault/backhand-async" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fbackhand-async", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fbackhand-async'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a3007c1048686d1c829b9c7e7cc3ff153c80b477
[INFO] checking lovesegfault/backhand-async against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovesegfault%2Fbackhand-async" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lovesegfault/backhand-async 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/lovesegfault/backhand-async
[INFO] finished tweaking git repo https://github.com/lovesegfault/backhand-async
[INFO] tweaked toml for git repo https://github.com/lovesegfault/backhand-async written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lovesegfault/backhand-async 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 backhand v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6200795e446cb52fd794e846ae6554dd0e36def1ee61df0b45662fd82a1b9d16
[INFO] running `Command { std: "docker" "start" "-a" "6200795e446cb52fd794e846ae6554dd0e36def1ee61df0b45662fd82a1b9d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6200795e446cb52fd794e846ae6554dd0e36def1ee61df0b45662fd82a1b9d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6200795e446cb52fd794e846ae6554dd0e36def1ee61df0b45662fd82a1b9d16", kill_on_drop: false }`
[INFO] [stdout] 6200795e446cb52fd794e846ae6554dd0e36def1ee61df0b45662fd82a1b9d16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] aac95192f25c4eca358c128f288d3390313245cf00bc3024de4875288eb282b2
[INFO] running `Command { std: "docker" "start" "-a" "aac95192f25c4eca358c128f288d3390313245cf00bc3024de4875288eb282b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
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[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling lock_api v0.4.12
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[INFO] [stderr]     Checking backhand-async v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `link`
[INFO] [stdout]    --> src/async_unsquash.rs:116:46
[INFO] [stdout]     |
[INFO] [stdout] 116 |         InnerNode::Symlink(SquashfsSymlink { link }) => unimplemented!(),
[INFO] [stdout]     |                                              ^^^^ help: try ignoring the field: `link: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `link`
[INFO] [stdout]    --> src/async_unsquash.rs:116:46
[INFO] [stdout]     |
[INFO] [stdout] 116 |         InnerNode::Symlink(SquashfsSymlink { link }) => unimplemented!(),
[INFO] [stdout]     |                                              ^^^^ help: try ignoring the field: `link: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unsquash_tpcii_async` is never used
[INFO] [stdout]   --> src/async_unsquash.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub async fn unsquash_tpcii_async(
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_node` is never used
[INFO] [stdout]   --> src/async_unsquash.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 | async fn extract_node(
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `unsquash_tpcii_async` is never used
[INFO] [stdout]   --> src/async_unsquash.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub async fn unsquash_tpcii_async(
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `extract_node` is never used
[INFO] [stdout]   --> src/async_unsquash.rs:83:10
[INFO] [stdout]    |
[INFO] [stdout] 83 | async fn extract_node(
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.62s
[INFO] running `Command { std: "docker" "inspect" "aac95192f25c4eca358c128f288d3390313245cf00bc3024de4875288eb282b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aac95192f25c4eca358c128f288d3390313245cf00bc3024de4875288eb282b2", kill_on_drop: false }`
[INFO] [stdout] aac95192f25c4eca358c128f288d3390313245cf00bc3024de4875288eb282b2