[INFO] cloning repository https://github.com/ajmalsiddiqui/siftfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ajmalsiddiqui/siftfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajmalsiddiqui%2Fsiftfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajmalsiddiqui%2Fsiftfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7bbe54ab72edc1a9c6be094f970eb3b1c46d79b
[INFO] checking ajmalsiddiqui/siftfs against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fajmalsiddiqui%2Fsiftfs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ajmalsiddiqui/siftfs 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/ajmalsiddiqui/siftfs
[INFO] finished tweaking git repo https://github.com/ajmalsiddiqui/siftfs
[INFO] tweaked toml for git repo https://github.com/ajmalsiddiqui/siftfs written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ajmalsiddiqui/siftfs 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 fuse v0.3.1
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9331b7d606f2b1c01076270c19dda896c7dac4df850b662e5c9ab9fad345a50d
[INFO] running `Command { std: "docker" "start" "-a" "9331b7d606f2b1c01076270c19dda896c7dac4df850b662e5c9ab9fad345a50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9331b7d606f2b1c01076270c19dda896c7dac4df850b662e5c9ab9fad345a50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9331b7d606f2b1c01076270c19dda896c7dac4df850b662e5c9ab9fad345a50d", kill_on_drop: false }`
[INFO] [stdout] 9331b7d606f2b1c01076270c19dda896c7dac4df850b662e5c9ab9fad345a50d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 88b09952ea47222b8ad060754865aea3a4f09bde5000638e855451b3adabf6c3
[INFO] running `Command { std: "docker" "start" "-a" "88b09952ea47222b8ad060754865aea3a4f09bde5000638e855451b3adabf6c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking thread-scoped v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking siftfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `dir_list` is never read
[INFO] [stdout]   --> src/sift.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub struct SiftFilesystem {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 88 |     dir_list: HashSet<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SiftFilesystem` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dir_list` is never read
[INFO] [stdout]   --> src/sift.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub struct SiftFilesystem {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 88 |     dir_list: HashSet<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SiftFilesystem` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/sift.rs:254:32
[INFO] [stdout]     |
[INFO] [stdout] 254 |             abs_path: file_path.clone().to_path_buf(),
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 254 -             abs_path: file_path.clone().to_path_buf(),
[INFO] [stdout] 254 +             abs_path: file_path.to_path_buf(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/sift.rs:254:32
[INFO] [stdout]     |
[INFO] [stdout] 254 |             abs_path: file_path.clone().to_path_buf(),
[INFO] [stdout]     |                                ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 254 -             abs_path: file_path.clone().to_path_buf(),
[INFO] [stdout] 254 +             abs_path: file_path.to_path_buf(),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "88b09952ea47222b8ad060754865aea3a4f09bde5000638e855451b3adabf6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b09952ea47222b8ad060754865aea3a4f09bde5000638e855451b3adabf6c3", kill_on_drop: false }`
[INFO] [stdout] 88b09952ea47222b8ad060754865aea3a4f09bde5000638e855451b3adabf6c3