[INFO] cloning 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" "clone" "--bare" "https://github.com/foobert/rust-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoobert%2Frust-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoobert%2Frust-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b0c839b2916e4da1fc61735c89e6747dd3eca92
[INFO] testing foobert/rust-test against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoobert%2Frust-test" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/foobert/rust-test on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-36/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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fb7201732d30aca7fd59fc5380c4b4eb9bbfc72a7a0fa906520a7d8baa46073
[INFO] running `Command { std: "docker" "start" "-a" "5fb7201732d30aca7fd59fc5380c4b4eb9bbfc72a7a0fa906520a7d8baa46073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fb7201732d30aca7fd59fc5380c4b4eb9bbfc72a7a0fa906520a7d8baa46073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fb7201732d30aca7fd59fc5380c4b4eb9bbfc72a7a0fa906520a7d8baa46073", kill_on_drop: false }`
[INFO] [stdout] 5fb7201732d30aca7fd59fc5380c4b4eb9bbfc72a7a0fa906520a7d8baa46073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] beb1d4a293e04a2e6d29df9b9396c3183557d8a083fe2c8f59d454ef7a91ea91
[INFO] running `Command { std: "docker" "start" "-a" "beb1d4a293e04a2e6d29df9b9396c3183557d8a083fe2c8f59d454ef7a91ea91", 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] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/main.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let id: *const libc::c_char = CString::new(id).unwrap().as_ptr();
[INFO] [stdout]    |                                       ------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(temporary_cstring_as_ptr)]` on by default
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/main.rs:56:69
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let host: *const libc::c_char = CString::new(host).unwrap().as_ptr();
[INFO] [stdout]    |                                         --------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                         |
[INFO] [stdout]    |                                         this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: getting the inner pointer of a temporary `CString`
[INFO] [stdout]   --> src/main.rs:64:71
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let topic: *const libc::c_char = CString::new(topic).unwrap().as_ptr();
[INFO] [stdout]    |                                          ---------------------------- ^^^^^^ this pointer will be invalid
[INFO] [stdout]    |                                          |
[INFO] [stdout]    |                                          this `CString` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout]    |
[INFO] [stdout]    = note: pointers do not have a lifetime; when calling `as_ptr` the `CString` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]    = help: for more information, see https://doc.rust-lang.org/reference/destructors.html
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.begw.2s3ryolk-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1.3qcpegc6fp9b69ob.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmosquitto" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblibc-3187b50b5b107f02.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2420485b9e5ef5e1.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-785e3cb61c4b1960.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-087191a88bdaa22d.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9981842c02975178.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-6fb405869b015fde.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d05c5c3c56004b7b.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-42d74d2097528b38.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-fb36534c113d2209.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b56b9042c12b6535.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-491902d6cb3e76df.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-61834e0981b8c367.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f78aa99d613a55bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-53ee54cd7fed2c57.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-544ecdbd6cda3c58.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-379cc252b6943a79.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8063eea38dcc5e62.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5b228734afae15ee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d6c7a399d95d173f.rlib" "-Wl,-Bdynamic" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/begw-fb0b03ac0213e3a1" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[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; 6 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" "beb1d4a293e04a2e6d29df9b9396c3183557d8a083fe2c8f59d454ef7a91ea91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb1d4a293e04a2e6d29df9b9396c3183557d8a083fe2c8f59d454ef7a91ea91", kill_on_drop: false }`
[INFO] [stdout] beb1d4a293e04a2e6d29df9b9396c3183557d8a083fe2c8f59d454ef7a91ea91
