[INFO] updating cached repository https://github.com/russ-0/miki
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1bb349e82d467533c440d98d7eff3292e98cebd6
[INFO] checking russ-0/miki against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruss-0%2Fmiki" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/russ-0/miki on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/russ-0/miki
[INFO] finished tweaking git repo https://github.com/russ-0/miki
[INFO] tweaked toml for git repo https://github.com/russ-0/miki written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/russ-0/miki already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9ba5a70f9840d56e6cc08d5b33eb23f9d0ea1271a833d8755c4c3724587ebb7
[INFO] running `"docker" "start" "-a" "e9ba5a70f9840d56e6cc08d5b33eb23f9d0ea1271a833d8755c4c3724587ebb7"`
[INFO] [stderr]     Checking priority-queue v0.7.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]  --> src/lib/chatlib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::SystemTime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Date`
[INFO] [stderr]  --> src/lib/chatlib.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | use chrono::{MIN_DATE, Date, DateTime, Utc, Duration};
[INFO] [stderr]   |                        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BinaryHeap`
[INFO] [stderr]  --> src/lib/chatlib.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, BinaryHeap};
[INFO] [stderr]   |                                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]  --> src/lib/chatlib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cell::Cell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/lib/chatlib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]   --> src/lib/chatlib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cmp::Ordering;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Add`, `Sub`
[INFO] [stderr]   --> src/lib/chatlib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::ops::{Sub, Add};
[INFO] [stderr]    |                ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]   --> src/lib/chatlib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::borrow::Borrow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::iter::Map` that must be used
[INFO] [stderr]   --> src/lib/chatlib.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 | /         messages.iter().map(|message| self.ordered.change_priority(
[INFO] [stderr] 80 | |             &message,
[INFO] [stderr] 81 | |             MIN_DATE.and_hms(0, 0, 0)
[INFO] [stderr] 82 | |         ));
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: iterators are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::iter::Map` that must be used
[INFO] [stderr]    --> src/lib/chatlib.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         messages.iter().map(|message| self.direct_send(message.clone()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::SystemTime`
[INFO] [stderr]  --> src/lib/chatlib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::SystemTime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Date`
[INFO] [stderr]  --> src/lib/chatlib.rs:4:24
[INFO] [stderr]   |
[INFO] [stderr] 4 | use chrono::{MIN_DATE, Date, DateTime, Utc, Duration};
[INFO] [stderr]   |                        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BinaryHeap`
[INFO] [stderr]  --> src/lib/chatlib.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::collections::{HashMap, BinaryHeap};
[INFO] [stderr]   |                                 ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::Cell`
[INFO] [stderr]  --> src/lib/chatlib.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cell::Cell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/lib/chatlib.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::Ordering`
[INFO] [stderr]   --> src/lib/chatlib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cmp::Ordering;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Add`, `Sub`
[INFO] [stderr]   --> src/lib/chatlib.rs:12:16
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::ops::{Sub, Add};
[INFO] [stderr]    |                ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]   --> src/lib/chatlib.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::borrow::Borrow;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::iter::Map` that must be used
[INFO] [stderr]   --> src/lib/chatlib.rs:79:9
[INFO] [stderr]    |
[INFO] [stderr] 79 | /         messages.iter().map(|message| self.ordered.change_priority(
[INFO] [stderr] 80 | |             &message,
[INFO] [stderr] 81 | |             MIN_DATE.and_hms(0, 0, 0)
[INFO] [stderr] 82 | |         ));
[INFO] [stderr]    | |___________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: iterators are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::iter::Map` that must be used
[INFO] [stderr]    --> src/lib/chatlib.rs:269:9
[INFO] [stderr]     |
[INFO] [stderr] 269 |         messages.iter().map(|message| self.direct_send(message.clone()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: iterators are lazy and do nothing unless consumed
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ready`
[INFO] [stderr]  --> src/client.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use mio::{Ready, net::TcpStream};
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/client.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             client.socket.write(line.unwrap().as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ready`
[INFO] [stderr]  --> src/client.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | use mio::{Ready, net::TcpStream};
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BorrowMut`
[INFO] [stderr]  --> src/server.rs:4:19
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::borrow::{BorrowMut, Borrow};
[INFO] [stderr]   |                   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/client.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |             client.socket.write(line.unwrap().as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:29:29
[INFO] [stderr]    |
[INFO] [stderr] 29 |                         let mut connection = match server.accept_connection() {
[INFO] [stderr]    |                             ----^^^^^^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:37:33
[INFO] [stderr]    |
[INFO] [stderr] 37 | ...                   let mut connection = connection.borrow();
[INFO] [stderr]    |                           ----^^^^^^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: borrow of moved value: `connection`
[INFO] [stderr]   --> src/server.rs:37:50
[INFO] [stderr]    |
[INFO] [stderr] 29 |                         let mut connection = match server.accept_connection() {
[INFO] [stderr]    |                             -------------- move occurs because `connection` has type `chatlib::Connection`, which does not implement the `Copy` trait
[INFO] [stderr] ...
[INFO] [stderr] 34 |                         server.update(connection);
[INFO] [stderr]    |                                       ---------- value moved here
[INFO] [stderr] ...
[INFO] [stderr] 37 |                             let mut connection = connection.borrow();
[INFO] [stderr]    |                                                  ^^^^^^^^^^ value borrowed here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `*connection` as mutable, as it is behind a `&` reference
[INFO] [stderr]   --> src/server.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 37 | ...                   let mut connection = connection.borrow();
[INFO] [stderr]    |                           -------------- help: consider changing this to be a mutable reference: `&mut chatlib::Connection`
[INFO] [stderr] 38 | ...                   connection.server_send(messages);
[INFO] [stderr]    |                       ^^^^^^^^^^ `connection` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0382, E0596.
[INFO] [stderr] For more information about an error, try `rustc --explain E0382`.
[INFO] [stderr] error: could not compile `server`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused import: `BorrowMut`
[INFO] [stderr]  --> src/server.rs:4:19
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::borrow::{BorrowMut, Borrow};
[INFO] [stderr]   |                   ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:29:29
[INFO] [stderr]    |
[INFO] [stderr] 29 |                         let mut connection = match server.accept_connection() {
[INFO] [stderr]    |                             ----^^^^^^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/server.rs:37:33
[INFO] [stderr]    |
[INFO] [stderr] 37 | ...                   let mut connection = connection.borrow();
[INFO] [stderr]    |                           ----^^^^^^^^^^
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error[E0382]: borrow of moved value: `connection`
[INFO] [stderr]   --> src/server.rs:37:50
[INFO] [stderr]    |
[INFO] [stderr] 29 |                         let mut connection = match server.accept_connection() {
[INFO] [stderr]    |                             -------------- move occurs because `connection` has type `chatlib::Connection`, which does not implement the `Copy` trait
[INFO] [stderr] ...
[INFO] [stderr] 34 |                         server.update(connection);
[INFO] [stderr]    |                                       ---------- value moved here
[INFO] [stderr] ...
[INFO] [stderr] 37 |                             let mut connection = connection.borrow();
[INFO] [stderr]    |                                                  ^^^^^^^^^^ value borrowed here after move
[INFO] [stderr] 
[INFO] [stderr] error[E0596]: cannot borrow `*connection` as mutable, as it is behind a `&` reference
[INFO] [stderr]   --> src/server.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 37 | ...                   let mut connection = connection.borrow();
[INFO] [stderr]    |                           -------------- help: consider changing this to be a mutable reference: `&mut chatlib::Connection`
[INFO] [stderr] 38 | ...                   connection.server_send(messages);
[INFO] [stderr]    |                       ^^^^^^^^^^ `connection` is a `&` reference, so the data it refers to cannot be borrowed as mutable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0382, E0596.
[INFO] [stderr] For more information about an error, try `rustc --explain E0382`.
[INFO] [stderr] error: could not compile `server`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e9ba5a70f9840d56e6cc08d5b33eb23f9d0ea1271a833d8755c4c3724587ebb7"`
[INFO] running `"docker" "rm" "-f" "e9ba5a70f9840d56e6cc08d5b33eb23f9d0ea1271a833d8755c4c3724587ebb7"`
[INFO] [stdout] e9ba5a70f9840d56e6cc08d5b33eb23f9d0ea1271a833d8755c4c3724587ebb7
