[INFO] fetching crate ffcnt 0.3.0...
[INFO] testing ffcnt-0.3.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate ffcnt 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ffcnt 0.3.0 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 ffcnt 0.3.0
[INFO] finished tweaking crates.io crate ffcnt 0.3.0
[INFO] tweaked toml for crates.io crate ffcnt 0.3.0 written to /workspace/builds/worker-1/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] 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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3f2ff3ba1f1eb71e679dea93ee606ab1b6a94313ff3584e86c71cafc4590756
[INFO] running `Command { std: "docker" "start" "-a" "d3f2ff3ba1f1eb71e679dea93ee606ab1b6a94313ff3584e86c71cafc4590756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f2ff3ba1f1eb71e679dea93ee606ab1b6a94313ff3584e86c71cafc4590756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f2ff3ba1f1eb71e679dea93ee606ab1b6a94313ff3584e86c71cafc4590756", kill_on_drop: false }`
[INFO] [stdout] d3f2ff3ba1f1eb71e679dea93ee606ab1b6a94313ff3584e86c71cafc4590756
[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" "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] 39084fcae125ae8729e13d41e1486eee648b2098a5215c73548f7d9e39991d33
[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" "39084fcae125ae8729e13d41e1486eee648b2098a5215c73548f7d9e39991d33", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling minilzo-sys v0.1.0
[INFO] [stderr]    Compiling mnt v0.3.1
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling minilzo v0.1.2
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling btrfs2 v1.2.2
[INFO] [stderr]    Compiling derive-error v0.0.3
[INFO] [stderr]    Compiling platter-walk v0.1.2
[INFO] [stderr]    Compiling ffcnt v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:177:56
[INFO] [stdout]     |
[INFO] [stdout] 177 |                     writeln!(std::io::stderr(),"{}", e.description()).unwrap();
[INFO] [stdout]     |                                                        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/main.rs:17:9
[INFO] [stdout]     |
[INFO] [stdout] 17  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[warn(deprecated)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:204:48
[INFO] [stdout]     |
[INFO] [stdout] 204 |             writeln!(std::io::stderr(),"{}", e.description()).unwrap();
[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/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.ffcnt.ai1qda0n-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6" "/opt/rustwide/target/debug/deps/ffcnt-510030dd8dbfaec6.2w6qfg6cjmdmjjtd.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/miniz-sys-28dee3aed53824da/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libisatty-bc9527f5a9b39a0b.rlib" "/opt/rustwide/target/debug/deps/libplatter_walk-14c1ac427e287621.rlib" "/opt/rustwide/target/debug/deps/libmnt-476ffde00db904c5.rlib" "/opt/rustwide/target/debug/deps/libbtrfs2-ce3ad72ffab0d94b.rlib" "/opt/rustwide/target/debug/deps/libuuid-5f0e5727383be13f.rlib" "/opt/rustwide/target/debug/deps/libminilzo-12f6e6d54a40528f.rlib" "/opt/rustwide/target/debug/deps/libminilzo_sys-943948a8f950a380.rlib" "/opt/rustwide/target/debug/deps/libflate2-e12dfe0c243efc18.rlib" "/opt/rustwide/target/debug/deps/libminiz_sys-c81cd85c815456c2.rlib" "/opt/rustwide/target/debug/deps/libcrc-e0ede9c0bac45539.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-4b460a565d885068.rlib" "/opt/rustwide/target/debug/deps/libnix-902088324ee2dbcf.rlib" "/opt/rustwide/target/debug/deps/libvoid-3484f9f7e819ca54.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-d2033c938d1688fd.rlib" "/opt/rustwide/target/debug/deps/libbitflags-032ea61c97bf3967.rlib" "/opt/rustwide/target/debug/deps/libclap-a033dee2b5860ad8.rlib" "/opt/rustwide/target/debug/deps/libvec_map-39e18969c02a5a20.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-ef19d23e5aed3739.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-0465a15c15895916.rlib" "/opt/rustwide/target/debug/deps/libstrsim-b4c20f59be0036a3.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e8b42ad6d332332e.rlib" "/opt/rustwide/target/debug/deps/libatty-5c7911b73c31acfc.rlib" "/opt/rustwide/target/debug/deps/liblibc-0a43f320b0d2a047.rlib" "/opt/rustwide/target/debug/deps/libansi_term-aefa377f3787504e.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f14aca24435a5414.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-48d342a8b48d1d01.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-14bc0820888c8eb3.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9cbd9e217bff06bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-31826136df98934e.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-075976a117c8fd5d.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2d5cbedfbf17a011.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0474372ff08c5319.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d437c34460d2315a.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bf76d1b643bfc9f0.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1b53aa7fddcf418.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-28585e57fac45c73.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64801769bc15ab28.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-541997b56bb98660.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cdea3c81adab3d12.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-cd9f15a39fb65cbc.rlib" "-Wl,-Bdynamic" "-llzo2" "-lz" "-llzo2" "-llzo2" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -llzo2
[INFO] [stdout]           /usr/bin/ld: cannot find -llzo2
[INFO] [stdout]           /usr/bin/ld: cannot find -llzo2
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ffcnt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "39084fcae125ae8729e13d41e1486eee648b2098a5215c73548f7d9e39991d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39084fcae125ae8729e13d41e1486eee648b2098a5215c73548f7d9e39991d33", kill_on_drop: false }`
[INFO] [stdout] 39084fcae125ae8729e13d41e1486eee648b2098a5215c73548f7d9e39991d33
