[INFO] crate rust-mpfr 0.1.7 is already in cache
[INFO] testing rust-mpfr-0.1.7 against 1.45.2 for beta-1.46-1
[INFO] extracting crate rust-mpfr 0.1.7 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rust-mpfr 0.1.7 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d86de018d3f7e9886a6c2149189ac75c5402798fa0d3e30534cdbcb2c29ed3d
[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" "0d86de018d3f7e9886a6c2149189ac75c5402798fa0d3e30534cdbcb2c29ed3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d86de018d3f7e9886a6c2149189ac75c5402798fa0d3e30534cdbcb2c29ed3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d86de018d3f7e9886a6c2149189ac75c5402798fa0d3e30534cdbcb2c29ed3d", kill_on_drop: false }`
[INFO] [stdout] 0d86de018d3f7e9886a6c2149189ac75c5402798fa0d3e30534cdbcb2c29ed3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91a16acd023e40c1c200c835e4bf154080d09ffc4f3003abc0854c701e9f2ef5
[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" "91a16acd023e40c1c200c835e4bf154080d09ffc4f3003abc0854c701e9f2ef5", 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 item '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 item '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 item '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 item '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" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.rust_mpfr.dqhef6ic-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/librust_mpfr.so" "-Wl,--version-script=/tmp/rustc2sPQa2/list" "/opt/rustwide/target/debug/deps/rust_mpfr.vev6nvbwpnoeprd.rcgu.o" "/opt/rustwide/target/debug/deps/rust_mpfr.u9066w8ojz7z6xy.rcgu.o" "-shared" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmpfr" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/librustc_serialize-f61ed616208b2c25.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libgmp-4c5fabdb33834072.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/liblibc-809b3ff95751964d.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libstd-8bb11f807a7b6b4c.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libpanic_unwind-ca8087507780d964.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libhashbrown-259c92b387c1c166.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/librustc_std_workspace_alloc-16e0a2fbbb8e14b3.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libbacktrace-8a1651b8e23d2aaf.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libbacktrace_sys-23bdd98b0574083e.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/librustc_demangle-855a92055ec33e2e.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libunwind-24c70dd44fbacdfb.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libcfg_if-b326273841bae587.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/liblibc-ac3c1f0e16507051.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/liballoc-a5729542b65954aa.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/librustc_std_workspace_core-09bd1119ab1cad7d.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustc2sPQa2/libcore-9a787681bfbeaf61.rlib" "-Wl,--no-whole-archive" "-Wl,--end-group" "/tmp/rustc2sPQa2/libcompiler_builtins-5a0398ee67f74664.rlib" "-Wl,-Bdynamic" "-lgmp" "-lgmp" "-lgmp" "-lgmp" "-lutil" "-ldl" "-lutil" "-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" "91a16acd023e40c1c200c835e4bf154080d09ffc4f3003abc0854c701e9f2ef5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a16acd023e40c1c200c835e4bf154080d09ffc4f3003abc0854c701e9f2ef5", kill_on_drop: false }`
[INFO] [stdout] 91a16acd023e40c1c200c835e4bf154080d09ffc4f3003abc0854c701e9f2ef5