[INFO] fetching crate rustfbp 0.3.34...
[INFO] testing rustfbp-0.3.34 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate rustfbp 0.3.34 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate rustfbp 0.3.34
[INFO] finished tweaking crates.io crate rustfbp 0.3.34
[INFO] tweaked toml for crates.io crate rustfbp 0.3.34 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustfbp 0.3.34 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding capnp v0.8.17 (available: v0.21.1)
[INFO] [stderr]       Adding libloading v0.4.3 (available: v0.8.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded capnp v0.8.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e008ae371cffe423de3a43e0cb59d9894fc7ce17c7ae8c562e67a9aa9da9b246
[INFO] running `Command { std: "docker" "start" "-a" "e008ae371cffe423de3a43e0cb59d9894fc7ce17c7ae8c562e67a9aa9da9b246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e008ae371cffe423de3a43e0cb59d9894fc7ce17c7ae8c562e67a9aa9da9b246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e008ae371cffe423de3a43e0cb59d9894fc7ce17c7ae8c562e67a9aa9da9b246", kill_on_drop: false }`
[INFO] [stdout] e008ae371cffe423de3a43e0cb59d9894fc7ce17c7ae8c562e67a9aa9da9b246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1dc4490c98a1566e3b66baddbe656d5e41495835f98f85690cd092cf031d9a6d
[INFO] running `Command { std: "docker" "start" "-a" "1dc4490c98a1566e3b66baddbe656d5e41495835f98f85690cd092cf031d9a6d", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling capnp v0.8.17
[INFO] [stderr]    Compiling rustfbp v0.3.34 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `alloc_system`
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | extern crate alloc_system;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:191:21
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let s_acc = try!(senders.get("accumulator").ok_or(result::Error::PortNotFound(name.clone(), "accumulator".into()))).clone();
[INFO] [stdout]     |                     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:269:24
[INFO] [stdout]     |
[INFO] [stdout] 269 |         let response = try!(r.recv());
[INFO] [stdout]     |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:272:33
[INFO] [stdout]     |
[INFO] [stdout] 272 |                 Ok((boxed_comp, try!(self.agents.remove(&name).ok_or(result::Error::AgentNotFound(name.into())))))
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:305:22
[INFO] [stdout]     |
[INFO] [stdout] 305 |         let sender = try!(self.get_sender(comp_in, port_in));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:338:22
[INFO] [stdout]     |
[INFO] [stdout] 338 |         let sender = try!(self.get_sender(comp_in, port_in));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:371:22
[INFO] [stdout]     |
[INFO] [stdout] 371 |         let sender = try!(self.get_array_sender(comp_in, port_in, element_in));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:406:22
[INFO] [stdout]     |
[INFO] [stdout] 406 |         let sender = try!(self.get_array_sender(comp_in, port_in, element_in));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |         try!(self.agents.get_mut(&comp_name).ok_or(result::Error::AgentNotFound(comp_name.clone()))
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:828:17
[INFO] [stdout]     |
[INFO] [stdout] 828 |                 try!(Self::edit_one_comp(&mut box_comp, msg));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/scheduler.rs:871:13
[INFO] [stdout]     |
[INFO] [stdout] 871 |             try!(Self::edit_one_comp(&mut c, msg));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/scheduler.rs:955:27
[INFO] [stdout]     |
[INFO] [stdout] 955 |             let new_comp: extern fn(usize, Sender<CompMsg>) -> Result<(Box<Agent + Send>, HashMap<String, MsgSender>)> = unsafe {
[INFO] [stdout]     |                           ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/scheduler.rs:959:26
[INFO] [stdout]     |
[INFO] [stdout] 959 |             let get_in : extern fn(&str) -> Result<String> = unsafe {
[INFO] [stdout]     |                          ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/scheduler.rs:963:28
[INFO] [stdout]     |
[INFO] [stdout] 963 |             let get_in_a : extern fn(&str) -> Result<String> = unsafe {
[INFO] [stdout]     |                            ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/scheduler.rs:967:27
[INFO] [stdout]     |
[INFO] [stdout] 967 |             let get_out : extern fn(&str) -> Result<String> = unsafe {
[INFO] [stdout]     |                           ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/scheduler.rs:971:29
[INFO] [stdout]     |
[INFO] [stdout] 971 |             let get_out_a : extern fn(&str) -> Result<String> = unsafe {
[INFO] [stdout]     |                             ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ports.rs:57:19
[INFO] [stdout]    |
[INFO] [stdout] 57 |         let msg = try!(capnp::serialize::read_message(&mut &self.vec[..], capnp::message::ReaderOptions::new()));
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ports.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Ok(try!(self.reader.as_ref().unwrap().get_root()))
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ports.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         try!(msg.set_root(reader));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ports.rs:94:22
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let reader = try!(capnp::serialize::read_message(&mut &self.vec[..], capnp::message::ReaderOptions::new()));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ports.rs:96:25
[INFO] [stdout]    |
[INFO] [stdout] 96 |         let reader: U = try!(self.reader.as_ref().unwrap().get_root());
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |         Ok(try!(self.builder.as_mut().unwrap().get_root()))
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:120:13
[INFO] [stdout]     |
[INFO] [stdout] 120 |             try!(capnp::serialize::write_message(&mut self.vec, b))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         try!(msg.before_send());
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         try!(self.sender.send(msg));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |             try!(self.sched.send(CompMsg::Inc(self.dest)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:208:19
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let msg = try!(self.recv.recv());
[INFO] [stdout]     |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:210:13
[INFO] [stdout]     |
[INFO] [stdout] 210 |             try!(self.sched.send(CompMsg::Dec(self.id)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/ports.rs:218:13
[INFO] [stdout]     |
[INFO] [stdout] 218 |             try!(self.sched.send(CompMsg::Dec(self.id)));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `alloc_system`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc_system)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scheduler.rs:35:26
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub type BoxedComp = Box<Agent + Send>;
[INFO] [stdout]    |                          ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub type BoxedComp = Box<dyn Agent + Send>;
[INFO] [stdout]    |                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scheduler.rs:920:66
[INFO] [stdout]     |
[INFO] [stdout] 920 |     create: extern "C" fn(usize, Sender<CompMsg>) -> Result<(Box<Agent + Send>, HashMap<String, MsgSender>)>,
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 920 |     create: extern "C" fn(usize, Sender<CompMsg>) -> Result<(Box<dyn Agent + Send>, HashMap<String, MsgSender>)>,
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/result.rs:87:32
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn cause(&self) -> Option<&dyn error::Error> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scheduler.rs:951:98
[INFO] [stdout]     |
[INFO] [stdout] 951 |     pub fn create_comp(&mut self, path: &str, id: usize, sender: Sender<CompMsg>) -> Result<(Box<Agent + Send>, HashMap<String, MsgSender...
[INFO] [stdout]     |                                                                                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 951 |     pub fn create_comp(&mut self, path: &str, id: usize, sender: Sender<CompMsg>) -> Result<(Box<dyn Agent + Send>, HashMap<String, MsgSender>)> {
[INFO] [stdout]     |                                                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/scheduler.rs:955:76
[INFO] [stdout]     |
[INFO] [stdout] 955 |             let new_comp: extern fn(usize, Sender<CompMsg>) -> Result<(Box<Agent + Send>, HashMap<String, MsgSender>)> = unsafe {
[INFO] [stdout]     |                                                                            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 955 |             let new_comp: extern fn(usize, Sender<CompMsg>) -> Result<(Box<dyn Agent + Send>, HashMap<String, MsgSender>)> = unsafe {
[INFO] [stdout]     |                                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/result.rs:67:42
[INFO] [stdout]    |
[INFO] [stdout] 67 |             Error::Capnp(ref err) => err.description(),
[INFO] [stdout]    |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/result.rs:68:45
[INFO] [stdout]    |
[INFO] [stdout] 68 |             Error::CapnpNIS(ref err) => err.description(),
[INFO] [stdout]    |                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/result.rs:69:39
[INFO] [stdout]    |
[INFO] [stdout] 69 |             Error::IO(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/result.rs:70:45
[INFO] [stdout]    |
[INFO] [stdout] 70 |             Error::FromUtf8(ref err) => err.description(),
[INFO] [stdout]    |                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/result.rs:71:41
[INFO] [stdout]    |
[INFO] [stdout] 71 |             Error::Mpsc(ref err) => err.description(),
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/result.rs:72:48
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Error::MpscTryRecv(ref err) => err.description(),
[INFO] [stdout]    |                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:475:32
[INFO] [stdout]     |
[INFO] [stdout] 475 |                     .and_then(|mut port| {
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:470:24
[INFO] [stdout]     |
[INFO] [stdout] 470 |             .and_then(|mut comp| {
[INFO] [stdout]     |                        ----^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:790:17
[INFO] [stdout]     |
[INFO] [stdout] 790 |             let mut o_comp = self.agents.get_mut(&id).expect("SchedState remove : agent doesn't exist");
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:806:17
[INFO] [stdout]     |
[INFO] [stdout] 806 |             let mut comp = self.agents.get_mut(&id).expect("SchedState start : agent not found");
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:826:17
[INFO] [stdout]     |
[INFO] [stdout] 826 |             let mut comp = self.agents.get_mut(&id).expect("SchedState RunEnd : agent doesn't exist");
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:853:13
[INFO] [stdout]     |
[INFO] [stdout] 853 |         let mut o_comp = self.agents.get_mut(&id).expect("SchedSate run : agent doesn't exist");
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |         let mut comp = self.agents.get_mut(&id).expect("SchedState edit_agent : agent doesn't exist");
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/scheduler.rs:878:22
[INFO] [stdout]     |
[INFO] [stdout] 878 |     fn edit_one_comp(mut c: &mut BoxedComp, msg: EditCmp) -> Result<()> {
[INFO] [stdout]     |                      ----^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustfbp` (lib) due to 2 previous errors; 47 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1dc4490c98a1566e3b66baddbe656d5e41495835f98f85690cd092cf031d9a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dc4490c98a1566e3b66baddbe656d5e41495835f98f85690cd092cf031d9a6d", kill_on_drop: false }`
[INFO] [stdout] 1dc4490c98a1566e3b66baddbe656d5e41495835f98f85690cd092cf031d9a6d