[INFO] cloning repository https://github.com/foxford/janus-p2p-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/foxford/janus-p2p-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoxford%2Fjanus-p2p-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoxford%2Fjanus-p2p-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ab056c2be138b09486d37104871a0c0abb589d0
[INFO] testing foxford/janus-p2p-rs against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffoxford%2Fjanus-p2p-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/foxford/janus-p2p-rs on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/foxford/janus-p2p-rs
[INFO] finished tweaking git repo https://github.com/foxford/janus-p2p-rs
[INFO] tweaked toml for git repo https://github.com/foxford/janus-p2p-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/foxford/janus-p2p-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.6
[INFO] [stderr]   Downloaded janus-plugin-sys v0.5.0
[INFO] [stderr]   Downloaded chrono v0.4.0
[INFO] [stderr]   Downloaded glib-sys v0.4.0
[INFO] [stderr]   Downloaded janus-plugin v0.7.1
[INFO] [stderr]   Downloaded jansson-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76bd319c286dd445c9bdf4d6a84a8272d472998bc114cd624217d1317f0fc7ab
[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" "76bd319c286dd445c9bdf4d6a84a8272d472998bc114cd624217d1317f0fc7ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76bd319c286dd445c9bdf4d6a84a8272d472998bc114cd624217d1317f0fc7ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76bd319c286dd445c9bdf4d6a84a8272d472998bc114cd624217d1317f0fc7ab", kill_on_drop: false }`
[INFO] [stdout] 76bd319c286dd445c9bdf4d6a84a8272d472998bc114cd624217d1317f0fc7ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] faaaec7bd5fa9e1d973e7e5ec4d388456d1ac31f5920ff10867b699edae369c3
[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" "faaaec7bd5fa9e1d973e7e5ec4d388456d1ac31f5920ff10867b699edae369c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling jansson-sys v0.1.0
[INFO] [stderr]    Compiling serde v1.0.21
[INFO] [stderr]    Compiling lazy_static v0.2.10
[INFO] [stderr]    Compiling cstr-macro v0.1.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling glib-sys v0.4.0
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]    Compiling colored v1.6.0
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling janus-plugin-sys v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.6
[INFO] [stderr]    Compiling janus-plugin v0.7.1
[INFO] [stderr]    Compiling janus-p2p v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/messages.rs:78:42
[INFO] [stdout]    |
[INFO] [stdout] 78 | ) -> ::std::result::Result<Response, Box<error::Error>> {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:134:37
[INFO] [stdout]     |
[INFO] [stdout] 134 | type MessageResult = Result<(), Box<Error>>;
[INFO] [stdout]     |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / lazy_static! {
[INFO] [stdout] 30 | |     static ref CHANNEL: Mutex<Option<mpsc::Sender<RawMessage>>> = Mutex::new(None);
[INFO] [stdout] 31 | |     static ref SESSIONS: RwLock<Vec<Box<Arc<Session>>>> = RwLock::new(Vec::new());
[INFO] [stdout] 32 | |     #[derive(Debug)]
[INFO] [stdout] 33 | |     static ref ROOMS: RwLock<HashMap<RoomId, Box<Room>>> = RwLock::new(HashMap::new());
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / lazy_static! {
[INFO] [stdout] 30 | |     static ref CHANNEL: Mutex<Option<mpsc::Sender<RawMessage>>> = Mutex::new(None);
[INFO] [stdout] 31 | |     static ref SESSIONS: RwLock<Vec<Box<Arc<Session>>>> = RwLock::new(Vec::new());
[INFO] [stdout] 32 | |     #[derive(Debug)]
[INFO] [stdout] 33 | |     static ref ROOMS: RwLock<HashMap<RoomId, Box<Room>>> = RwLock::new(HashMap::new());
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / lazy_static! {
[INFO] [stdout] 30 | |     static ref CHANNEL: Mutex<Option<mpsc::Sender<RawMessage>>> = Mutex::new(None);
[INFO] [stdout] 31 | |     static ref SESSIONS: RwLock<Vec<Box<Arc<Session>>>> = RwLock::new(Vec::new());
[INFO] [stdout] 32 | |     #[derive(Debug)]
[INFO] [stdout] 33 | |     static ref ROOMS: RwLock<HashMap<RoomId, Box<Room>>> = RwLock::new(HashMap::new());
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / lazy_static! {
[INFO] [stdout] 30 | |     static ref CHANNEL: Mutex<Option<mpsc::Sender<RawMessage>>> = Mutex::new(None);
[INFO] [stdout] 31 | |     static ref SESSIONS: RwLock<Vec<Box<Arc<Session>>>> = RwLock::new(Vec::new());
[INFO] [stdout] 32 | |     #[derive(Debug)]
[INFO] [stdout] 33 | |     static ref ROOMS: RwLock<HashMap<RoomId, Box<Room>>> = RwLock::new(HashMap::new());
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / lazy_static! {
[INFO] [stdout] 30 | |     static ref CHANNEL: Mutex<Option<mpsc::Sender<RawMessage>>> = Mutex::new(None);
[INFO] [stdout] 31 | |     static ref SESSIONS: RwLock<Vec<Box<Arc<Session>>>> = RwLock::new(Vec::new());
[INFO] [stdout] 32 | |     #[derive(Debug)]
[INFO] [stdout] 33 | |     static ref ROOMS: RwLock<HashMap<RoomId, Box<Room>>> = RwLock::new(HashMap::new());
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/lib.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | / lazy_static! {
[INFO] [stdout] 30 | |     static ref CHANNEL: Mutex<Option<mpsc::Sender<RawMessage>>> = Mutex::new(None);
[INFO] [stdout] 31 | |     static ref SESSIONS: RwLock<Vec<Box<Arc<Session>>>> = RwLock::new(Vec::new());
[INFO] [stdout] 32 | |     #[derive(Debug)]
[INFO] [stdout] 33 | |     static ref ROOMS: RwLock<HashMap<RoomId, Box<Room>>> = RwLock::new(HashMap::new());
[INFO] [stdout] 34 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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/lib.rs:316:55
[INFO] [stdout]     |
[INFO] [stdout] 316 |                     json!({ "ok": false, "error": err.description() }),
[INFO] [stdout]     |                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]    --> src/lib.rs:335:9
[INFO] [stdout]     |
[INFO] [stdout] 335 |         &mut PLUGIN,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]     = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]     = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]    --> src/lib.rs:351:1
[INFO] [stdout]     |
[INFO] [stdout] 351 | / const PLUGIN: Plugin = build_plugin!(
[INFO] [stdout] 352 | |     PluginMetadata {
[INFO] [stdout] 353 | |         version: 1,
[INFO] [stdout] 354 | |         version_str: c_str!("0.1"),
[INFO] [stdout] ...   |
[INFO] [stdout] 371 | |     query_session
[INFO] [stdout] 372 | | );
[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-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/janus_p2p.janus_p2p.7urwljot-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/libjanus_p2p.so" "-Wl,--version-script=/tmp/rustcVdL5MW/list" "/opt/rustwide/target/debug/deps/janus_p2p.48qjfqx83891ljzk.rcgu.o" "-Wl,--gc-sections" "-shared" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libserde_json-cf654413985ba681.rlib" "/opt/rustwide/target/debug/deps/libdtoa-61840fb9d504812a.rlib" "/opt/rustwide/target/debug/deps/libitoa-77ed125fcffa28d1.rlib" "/opt/rustwide/target/debug/deps/libjanus_plugin-b2af9bacf8b792d8.rlib" "/opt/rustwide/target/debug/deps/libcolored-09fcc2487a775dbe.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-c0e7bcc90d2606f2.rlib" "/opt/rustwide/target/debug/deps/libchrono-d5e35d51ac7d1293.rlib" "/opt/rustwide/target/debug/deps/libnum-6e8d6bc75202a603.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-5d38f577ad1759b1.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-74bb962202a5fcb4.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-a67e504177d5f395.rlib" "/opt/rustwide/target/debug/deps/libtime-c704d03537f2e769.rlib" "/opt/rustwide/target/debug/deps/libserde-9a0d27e7a7f6c854.rlib" "/opt/rustwide/target/debug/deps/libjanus_plugin_sys-c549b18317275095.rlib" "/opt/rustwide/target/debug/deps/libglib_sys-f52a5fe99ad4194a.rlib" "/opt/rustwide/target/debug/deps/libbitflags-e1adf2d5a3c5eab4.rlib" "/opt/rustwide/target/debug/deps/liblibc-4e392bb6aa69724a.rlib" "/opt/rustwide/target/debug/deps/libjansson_sys-68530bd8df204454.rlib" "/opt/rustwide/target/debug/deps/libbitflags-2530cb87bbd14716.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-3532beb752f910d7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3529ece450b7f3c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-23e8f582a6744f80.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5e7e0793b29cbf78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-253e0736424ceb78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-b6fd484888124c85.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-cca4d20e4b53839c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0a7401891c2a4f50.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-efbb25e073df787e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-25965457612624bc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-09058283ea779342.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ab973dacc0513511.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b437d6640b1f764b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8cc0b2380206399c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-727cdf2b6a468113.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cf4d442d877ea2f4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-7e5b6df427ca977c.rlib" "-Wl,-Bdynamic" "-lglib-2.0" "-lutil" "-lutil" "-ljansson" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ljansson
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `janus-p2p`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "faaaec7bd5fa9e1d973e7e5ec4d388456d1ac31f5920ff10867b699edae369c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "faaaec7bd5fa9e1d973e7e5ec4d388456d1ac31f5920ff10867b699edae369c3", kill_on_drop: false }`
[INFO] [stdout] faaaec7bd5fa9e1d973e7e5ec4d388456d1ac31f5920ff10867b699edae369c3
