[INFO] fetching crate pathrs 0.0.2...
[INFO] testing pathrs-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pathrs 0.0.2 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate pathrs 0.0.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pathrs 0.0.2
[INFO] finished tweaking crates.io crate pathrs 0.0.2
[INFO] tweaked toml for crates.io crate pathrs 0.0.2 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 007d0b32881afce832b3d51136a0056eef7aae0feab7632ed222112c0e132862
[INFO] running `Command { std: "docker" "start" "-a" "007d0b32881afce832b3d51136a0056eef7aae0feab7632ed222112c0e132862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "007d0b32881afce832b3d51136a0056eef7aae0feab7632ed222112c0e132862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "007d0b32881afce832b3d51136a0056eef7aae0feab7632ed222112c0e132862", kill_on_drop: false }`
[INFO] [stdout] 007d0b32881afce832b3d51136a0056eef7aae0feab7632ed222112c0e132862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 874b9f5bb47f14672a9d8d183448c3f719edef376fd258516b4742af9836c838
[INFO] running `Command { std: "docker" "start" "-a" "874b9f5bb47f14672a9d8d183448c3f719edef376fd258516b4742af9836c838", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling pathrs v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling snafu-derive v0.6.10
[INFO] [stderr]    Compiling snafu v0.6.10
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/syscalls.rs:565:13
[INFO] [stdout]     |
[INFO] [stdout] 565 |             libc::RENAME_EXCHANGE,
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `u32`
[INFO] [stdout]     |
[INFO] [stdout] help: you can convert a `u32` to an `i32` and panic if the converted value doesn't fit
[INFO] [stdout]     |
[INFO] [stdout] 565 |             libc::RENAME_EXCHANGE.try_into().unwrap(),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pathrs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "874b9f5bb47f14672a9d8d183448c3f719edef376fd258516b4742af9836c838", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "874b9f5bb47f14672a9d8d183448c3f719edef376fd258516b4742af9836c838", kill_on_drop: false }`
[INFO] [stdout] 874b9f5bb47f14672a9d8d183448c3f719edef376fd258516b4742af9836c838