[INFO] fetching crate ffcnt 0.3.0...
[INFO] testing ffcnt-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate ffcnt 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ffcnt 0.3.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.3.1
[INFO] [stderr]   Downloaded derive-error v0.0.3
[INFO] [stderr]   Downloaded minilzo-sys v0.1.0
[INFO] [stderr]   Downloaded platter-walk v0.1.2
[INFO] [stderr]   Downloaded btrfs2 v1.2.2
[INFO] [stderr]   Downloaded minilzo v0.1.2
[INFO] [stderr]   Downloaded mnt v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f89e456242a37069bc5c01baf61d9fb51e51ac5b5a68ab8cc9176ab16890bade
[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" "f89e456242a37069bc5c01baf61d9fb51e51ac5b5a68ab8cc9176ab16890bade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f89e456242a37069bc5c01baf61d9fb51e51ac5b5a68ab8cc9176ab16890bade", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89e456242a37069bc5c01baf61d9fb51e51ac5b5a68ab8cc9176ab16890bade", kill_on_drop: false }`
[INFO] [stdout] f89e456242a37069bc5c01baf61d9fb51e51ac5b5a68ab8cc9176ab16890bade
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5b8960b94d3274219ede2cac9ed183729cc12791b6ece63f1d7033170c53244
[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" "e5b8960b94d3274219ede2cac9ed183729cc12791b6ece63f1d7033170c53244", kill_on_drop: false }`
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling minilzo-sys v0.1.0
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling mnt v0.3.1
[INFO] [stderr]    Compiling minilzo v0.1.2
[INFO] [stderr]    Compiling derive-error v0.0.3
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling btrfs2 v1.2.2
[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/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.ffcnt.dmt2p2f9-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4" "/opt/rustwide/target/debug/deps/ffcnt-84c944aa69f492d4.2csz0olzbsye0toz.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-afed702fff7fb987/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libisatty-ad88cdd4af8104ca.rlib" "/opt/rustwide/target/debug/deps/libplatter_walk-106e7d1a59bd037e.rlib" "/opt/rustwide/target/debug/deps/libmnt-e0fb7fd1e1921d63.rlib" "/opt/rustwide/target/debug/deps/libbtrfs2-f87c604f9a2eba3f.rlib" "/opt/rustwide/target/debug/deps/libuuid-d9cbc04cacd858a1.rlib" "/opt/rustwide/target/debug/deps/libminilzo-693c70aa6c8c1fb0.rlib" "/opt/rustwide/target/debug/deps/libminilzo_sys-5b9160c7bf12c936.rlib" "/opt/rustwide/target/debug/deps/libflate2-9c2c35f2008018bb.rlib" "/opt/rustwide/target/debug/deps/libminiz_sys-feed7745cde1b705.rlib" "/opt/rustwide/target/debug/deps/libcrc-699ee3a7682dc9ac.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-721ddb5cf32cc140.rlib" "/opt/rustwide/target/debug/deps/libnix-a40e7e29d14e395e.rlib" "/opt/rustwide/target/debug/deps/libvoid-2252400e8925513f.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-3bb9a546b52233f2.rlib" "/opt/rustwide/target/debug/deps/libbitflags-5491842f1301905a.rlib" "/opt/rustwide/target/debug/deps/libclap-367b81fb88f94f5e.rlib" "/opt/rustwide/target/debug/deps/libvec_map-9c64949c2f867b0b.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-24249d84d50da6cf.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-906fa989c4fba052.rlib" "/opt/rustwide/target/debug/deps/libstrsim-794cc78f848fe7af.rlib" "/opt/rustwide/target/debug/deps/libbitflags-8a5476fab5bb3232.rlib" "/opt/rustwide/target/debug/deps/libatty-30358fd40d7b1720.rlib" "/opt/rustwide/target/debug/deps/liblibc-77d6541a42757d2c.rlib" "/opt/rustwide/target/debug/deps/libansi_term-4b9c56ff58f1d4f8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-llzo2" "-lz" "-llzo2" "-llzo2" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[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" "e5b8960b94d3274219ede2cac9ed183729cc12791b6ece63f1d7033170c53244", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b8960b94d3274219ede2cac9ed183729cc12791b6ece63f1d7033170c53244", kill_on_drop: false }`
[INFO] [stdout] e5b8960b94d3274219ede2cac9ed183729cc12791b6ece63f1d7033170c53244