[INFO] updating cached repository https://github.com/foobert/rust-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b0c839b2916e4da1fc61735c89e6747dd3eca92
[INFO] testing foobert/rust-test against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoobert%2Frust-test" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/foobert/rust-test 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 git repo https://github.com/foobert/rust-test
[INFO] finished tweaking git repo https://github.com/foobert/rust-test
[INFO] tweaked toml for git repo https://github.com/foobert/rust-test written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/foobert/rust-test already has a lockfile, it will not be regenerated
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] af2fab6de8d8bcbe3659e76f1fcbcae71f7bf5225995527c4fbe8e52af82f30b
[INFO] running `Command { std: "docker" "start" "-a" "af2fab6de8d8bcbe3659e76f1fcbcae71f7bf5225995527c4fbe8e52af82f30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af2fab6de8d8bcbe3659e76f1fcbcae71f7bf5225995527c4fbe8e52af82f30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af2fab6de8d8bcbe3659e76f1fcbcae71f7bf5225995527c4fbe8e52af82f30b", kill_on_drop: false }`
[INFO] [stdout] af2fab6de8d8bcbe3659e76f1fcbcae71f7bf5225995527c4fbe8e52af82f30b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e8af29958ee75e8c57fd41211dd631f3bc6995e1be2ab66d9cb7c13af6c67dac
[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" "e8af29958ee75e8c57fd41211dd631f3bc6995e1be2ab66d9cb7c13af6c67dac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling begw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mosq`
[INFO] [stdout]   --> src/main.rs:30:22
[INFO] [stdout]    |
[INFO] [stdout] 30 | extern fn on_message(mosq: *const Mosquitto, obj: *const libc::c_void, message: *mut MosquittoMessage) {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_mosq`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/main.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 | extern fn on_message(mosq: *const Mosquitto, obj: *const libc::c_void, message: *mut MosquittoMessage) {
[INFO] [stdout]    |                                              ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:34:13
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut t = m.topic;
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[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/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.begw.d3xcu2pc-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1" "/opt/rustwide/target/debug/deps/begw-c11ded25df65f6e1.1fvv7njlb2i2ikce.rcgu.o" "-Wl,--gc-sections" "-pie" "-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" "-lmosquitto" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblibc-664f85faa29f23af.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8bb11f807a7b6b4c.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-ca8087507780d964.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-259c92b387c1c166.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-16e0a2fbbb8e14b3.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-8a1651b8e23d2aaf.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-23bdd98b0574083e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-855a92055ec33e2e.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-24c70dd44fbacdfb.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-b326273841bae587.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ac3c1f0e16507051.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5729542b65954aa.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-09bd1119ab1cad7d.rlib" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9a787681bfbeaf61.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.45.2-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-5a0398ee67f74664.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lmosquitto
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `begw`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e8af29958ee75e8c57fd41211dd631f3bc6995e1be2ab66d9cb7c13af6c67dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8af29958ee75e8c57fd41211dd631f3bc6995e1be2ab66d9cb7c13af6c67dac", kill_on_drop: false }`
[INFO] [stdout] e8af29958ee75e8c57fd41211dd631f3bc6995e1be2ab66d9cb7c13af6c67dac