[INFO] fetching crate projfs 0.1.0...
[INFO] checking projfs-0.1.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate projfs 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate projfs 0.1.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate projfs 0.1.0
[INFO] finished tweaking crates.io crate projfs 0.1.0
[INFO] tweaked toml for crates.io crate projfs 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate projfs 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded projfs-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 204cbb3b0d7511e28203c84aed76eaffc357aaddaf3e3686abe1f61195dc8316
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "204cbb3b0d7511e28203c84aed76eaffc357aaddaf3e3686abe1f61195dc8316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "204cbb3b0d7511e28203c84aed76eaffc357aaddaf3e3686abe1f61195dc8316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "204cbb3b0d7511e28203c84aed76eaffc357aaddaf3e3686abe1f61195dc8316", kill_on_drop: false }`
[INFO] [stdout] 204cbb3b0d7511e28203c84aed76eaffc357aaddaf3e3686abe1f61195dc8316
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 296daf49e7ecad6621d998468672d52c09a4f4aa9a94498c8e6b575a8feefeb5
[INFO] running `Command { std: "docker" "start" "-a" "296daf49e7ecad6621d998468672d52c09a4f4aa9a94498c8e6b575a8feefeb5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling projfs-sys v0.1.0
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/projfs-sys-0.1.0/build.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | const fn target_arch() -> &'static str {
[INFO] [stdout]   |          -----------      ^^^^^^^^^^^^ expected `&str`, found `()`
[INFO] [stdout]   |          |
[INFO] [stdout]   |          implicitly returns `()` as its body has no tail or `return` expression
[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 `projfs-sys`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "296daf49e7ecad6621d998468672d52c09a4f4aa9a94498c8e6b575a8feefeb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296daf49e7ecad6621d998468672d52c09a4f4aa9a94498c8e6b575a8feefeb5", kill_on_drop: false }`
[INFO] [stdout] 296daf49e7ecad6621d998468672d52c09a4f4aa9a94498c8e6b575a8feefeb5