[INFO] cloning repository https://github.com/kolgotko/libmount
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kolgotko/libmount" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolgotko%2Flibmount", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolgotko%2Flibmount'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ad78eaa9206763bbde00de76e71a92e3b8144cb
[INFO] testing kolgotko/libmount against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkolgotko%2Flibmount" "/workspace/builds/worker-118/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-118/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kolgotko/libmount on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kolgotko/libmount
[INFO] finished tweaking git repo https://github.com/kolgotko/libmount
[INFO] tweaked toml for git repo https://github.com/kolgotko/libmount written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] crate git repo https://github.com/kolgotko/libmount already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ce0c3ed293934d52b30e87a7f1656fbe0660874f32cd1c520e884a93cfa6bb2
[INFO] running `Command { std: "docker" "start" "-a" "7ce0c3ed293934d52b30e87a7f1656fbe0660874f32cd1c520e884a93cfa6bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ce0c3ed293934d52b30e87a7f1656fbe0660874f32cd1c520e884a93cfa6bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ce0c3ed293934d52b30e87a7f1656fbe0660874f32cd1c520e884a93cfa6bb2", kill_on_drop: false }`
[INFO] [stdout] 7ce0c3ed293934d52b30e87a7f1656fbe0660874f32cd1c520e884a93cfa6bb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2138c7d99efa3f28f094262a0a3fd4b5633126ea9f849836195ee86450c8d2c
[INFO] running `Command { std: "docker" "start" "-a" "b2138c7d99efa3f28f094262a0a3fd4b5633126ea9f849836195ee86450c8d2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling bindgen v0.43.1
[INFO] [stderr]    Compiling clang-sys v0.26.2
[INFO] [stderr]    Compiling regex-syntax v0.6.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.5
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling cexpr v0.3.3
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling libmount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `nmount` in module `libc_mount`
[INFO] [stdout]    --> src/lib.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |         libc_mount::nmount(iovec_params.as_ptr() as *mut _, iovec_params.len() as u32, flags)
[INFO] [stdout]     |                     ^^^^^^ help: a function with a similar name exists: `mount`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/target/debug/build/libmount-eedbad570913508e/out/libc_mount.rs:3:13133
[INFO] [stdout]     |
[INFO] [stdout] 3   | ... { pub fn mount ( __special_file : * const :: std :: os :: raw :: c_char , __dir : * const :: std :: os :: raw :: c_char , __fstype : * const :: std :: os :: raw :: c_char , __rwflag : :: std :: os :: raw :: c_ulong , __data : * const :: std :: os :: raw :: c_void ) -> :: std :: os :: raw :: c_int ; } ...
[INFO] [stdout]     |       --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- similarly named function `mount` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `unmount` in module `libc_mount`
[INFO] [stdout]    --> src/lib.rs:148:21
[INFO] [stdout]     |
[INFO] [stdout] 148 |         libc_mount::unmount(dir.as_ptr(), flags)
[INFO] [stdout]     |                     ^^^^^^^ help: a function with a similar name exists: `umount`
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/target/debug/build/libmount-eedbad570913508e/out/libc_mount.rs:3:13446
[INFO] [stdout]     |
[INFO] [stdout] 3   | ...tern "C" { pub fn umount ( __special_file : * const :: std :: os :: raw :: c_char ) -> :: std :: os :: raw :: c_int ; } extern "C" { p...
[INFO] [stdout]     |               ---------------------------------------------------------------------------------------------------------- similarly named function `umount` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libmount` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b2138c7d99efa3f28f094262a0a3fd4b5633126ea9f849836195ee86450c8d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2138c7d99efa3f28f094262a0a3fd4b5633126ea9f849836195ee86450c8d2c", kill_on_drop: false }`
[INFO] [stdout] b2138c7d99efa3f28f094262a0a3fd4b5633126ea9f849836195ee86450c8d2c