[INFO] fetching crate rust-mpfr 0.1.7...
[INFO] testing rust-mpfr-0.1.7 against 1.47.0 for beta-1.48-1
[INFO] extracting crate rust-mpfr 0.1.7 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rust-mpfr 0.1.7 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-mpfr 0.1.7
[INFO] finished tweaking crates.io crate rust-mpfr 0.1.7
[INFO] tweaked toml for crates.io crate rust-mpfr 0.1.7 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 832b76a08a5575264722fc7bce8b6bfbebe01f1562e1fd1d4919d7f5c4071be2
[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" "832b76a08a5575264722fc7bce8b6bfbebe01f1562e1fd1d4919d7f5c4071be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "832b76a08a5575264722fc7bce8b6bfbebe01f1562e1fd1d4919d7f5c4071be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "832b76a08a5575264722fc7bce8b6bfbebe01f1562e1fd1d4919d7f5c4071be2", kill_on_drop: false }`
[INFO] [stdout] 832b76a08a5575264722fc7bce8b6bfbebe01f1562e1fd1d4919d7f5c4071be2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fffb0288a864388e862138b1a85aafe8f1deba80afc7020366a10a19e820dca
[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" "0fffb0288a864388e862138b1a85aafe8f1deba80afc7020366a10a19e820dca", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-gmp v0.3.2
[INFO] [stderr]    Compiling rust-mpfr v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]     --> src/mpfr.rs:1224:17
[INFO] [stdout]      |
[INFO] [stdout] 1224 |         let s = try!(d.read_str());
[INFO] [stdout]      |                 ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]   --> src/mpfr.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::mem::uninitialized;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpfr.rs:169:28
[INFO] [stdout]     |
[INFO] [stdout] 169 |             let mut mpfr = uninitialized();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/mpfr.rs:177:28
[INFO] [stdout]     |
[INFO] [stdout] 177 |             let mut mpfr = uninitialized();
[INFO] [stdout]     |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.95roiueq-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/librust_mpfr.so" "-Wl,--version-script=/tmp/rustcYXD5eu/list" "/opt/rustwide/target/debug/deps/rust_mpfr.4a1rh199gthkwwdy.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.3ohftr2j8g6m08iv.rcgu.o" "-shared" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmpfr" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/librustc_serialize-b94f9e5a325066ba.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libgmp-34df96a3f4919cea.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/liblibc-0a43f320b0d2a047.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libstd-f14aca24435a5414.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libpanic_unwind-48d342a8b48d1d01.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libminiz_oxide-14bc0820888c8eb3.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libadler-9cbd9e217bff06bc.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libobject-31826136df98934e.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libaddr2line-075976a117c8fd5d.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libgimli-2d5cbedfbf17a011.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/librustc_demangle-0474372ff08c5319.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libhashbrown-d437c34460d2315a.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libunwind-bf76d1b643bfc9f0.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libcfg_if-a1b53aa7fddcf418.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/liblibc-28585e57fac45c73.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/liballoc-64801769bc15ab28.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/librustc_std_workspace_core-541997b56bb98660.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcYXD5eu/libcore-cdea3c81adab3d12.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustcYXD5eu/libcompiler_builtins-cd9f15a39fb65cbc.rlib" "-Wl,-Bdynamic" "-lgmp" "-lgmp" "-lgmp" "-lgmp" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lmpfr
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-mpfr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "0fffb0288a864388e862138b1a85aafe8f1deba80afc7020366a10a19e820dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fffb0288a864388e862138b1a85aafe8f1deba80afc7020366a10a19e820dca", kill_on_drop: false }`
[INFO] [stdout] 0fffb0288a864388e862138b1a85aafe8f1deba80afc7020366a10a19e820dca
