[INFO] crate riker 0.3.2 is already in cache
[INFO] checking riker-0.3.2 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate riker 0.3.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate riker 0.3.2 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate riker 0.3.2
[INFO] finished tweaking crates.io crate riker 0.3.2
[INFO] tweaked toml for crates.io crate riker 0.3.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3a9157062a8a9519769c49a1695f10504ed6a9f0884cfae1c323666c96da3c0e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3a9157062a8a9519769c49a1695f10504ed6a9f0884cfae1c323666c96da3c0e"`
[INFO] [stderr]     Checking riker v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/actor/selection.rs:101:58
[INFO] [stderr]     |
[INFO] [stderr] 101 |                     let child = anchor.children().filter({ |c| c.name() == name }).last();
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/actor/selection.rs:159:58
[INFO] [stderr]     |
[INFO] [stderr] 159 |                     let child = anchor.children().filter({ |c| c.name() == name }).last();
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/actor/selection.rs:101:58
[INFO] [stderr]     |
[INFO] [stderr] 101 |                     let child = anchor.children().filter({ |c| c.name() == name }).last();
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/actor/selection.rs:159:58
[INFO] [stderr]     |
[INFO] [stderr] 159 |                     let child = anchor.children().filter({ |c| c.name() == name }).last();
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:26:60
[INFO] [stderr]    |
[INFO] [stderr] 26 |         f.write_str(&format!("\"{}\". {}", self.name, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:32:60
[INFO] [stderr]    |
[INFO] [stderr] 32 |         f.write_str(&format!("\"{}\". {}", self.name, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:57:60
[INFO] [stderr]    |
[INFO] [stderr] 57 |         f.write_str(&format!("\"{}\". {}", self.path, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:63:60
[INFO] [stderr]    |
[INFO] [stderr] 63 |         f.write_str(&format!("\"{}\". {}", self.path, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:56:26
[INFO] [stderr]    |
[INFO] [stderr] 56 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:62:26
[INFO] [stderr]    |
[INFO] [stderr] 62 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:85:26
[INFO] [stderr]    |
[INFO] [stderr] 85 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:91:26
[INFO] [stderr]    |
[INFO] [stderr] 91 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:119:55
[INFO] [stderr]     |
[INFO] [stderr] 119 |             CreateError::Panicked => f.write_str(self.description()),
[INFO] [stderr]     |                                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:120:53
[INFO] [stderr]     |
[INFO] [stderr] 120 |             CreateError::System => f.write_str(self.description()),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:122:54
[INFO] [stderr]     |
[INFO] [stderr] 122 |                 f.write_str(&format!("{} ({})", self.description(), name))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:125:54
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 f.write_str(&format!("{} ({})", self.description(), path))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:133:26
[INFO] [stderr]     |
[INFO] [stderr] 133 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:154:26
[INFO] [stderr]     |
[INFO] [stderr] 154 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:160:26
[INFO] [stderr]     |
[INFO] [stderr] 160 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:26:60
[INFO] [stderr]    |
[INFO] [stderr] 26 |         f.write_str(&format!("\"{}\". {}", self.name, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:32:60
[INFO] [stderr]    |
[INFO] [stderr] 32 |         f.write_str(&format!("\"{}\". {}", self.name, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:57:60
[INFO] [stderr]    |
[INFO] [stderr] 57 |         f.write_str(&format!("\"{}\". {}", self.path, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/validate.rs:63:60
[INFO] [stderr]    |
[INFO] [stderr] 63 |         f.write_str(&format!("\"{}\". {}", self.path, self.description()))
[INFO] [stderr]    |                                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:56:26
[INFO] [stderr]    |
[INFO] [stderr] 56 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:62:26
[INFO] [stderr]    |
[INFO] [stderr] 62 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:85:26
[INFO] [stderr]    |
[INFO] [stderr] 85 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/actor/mod.rs:91:26
[INFO] [stderr]    |
[INFO] [stderr] 91 |         f.write_str(self.description())
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:119:55
[INFO] [stderr]     |
[INFO] [stderr] 119 |             CreateError::Panicked => f.write_str(self.description()),
[INFO] [stderr]     |                                                       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:120:53
[INFO] [stderr]     |
[INFO] [stderr] 120 |             CreateError::System => f.write_str(self.description()),
[INFO] [stderr]     |                                                     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:122:54
[INFO] [stderr]     |
[INFO] [stderr] 122 |                 f.write_str(&format!("{} ({})", self.description(), name))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:125:54
[INFO] [stderr]     |
[INFO] [stderr] 125 |                 f.write_str(&format!("{} ({})", self.description(), path))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:133:26
[INFO] [stderr]     |
[INFO] [stderr] 133 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:154:26
[INFO] [stderr]     |
[INFO] [stderr] 154 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/actor/mod.rs:160:26
[INFO] [stderr]     |
[INFO] [stderr] 160 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/system/mod.rs:136:54
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 f.write_str(&format!("{} ({})", self.description(), m))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/system/mod.rs:139:54
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 f.write_str(&format!("{} ({})", self.description(), name))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/system/mod.rs:147:26
[INFO] [stderr]     |
[INFO] [stderr] 147 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/system/mod.rs:136:54
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 f.write_str(&format!("{} ({})", self.description(), m))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/system/mod.rs:139:54
[INFO] [stderr]     |
[INFO] [stderr] 139 |                 f.write_str(&format!("{} ({})", self.description(), name))
[INFO] [stderr]     |                                                      ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/system/mod.rs:147:26
[INFO] [stderr]     |
[INFO] [stderr] 147 |         f.write_str(self.description())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 20 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.27s
[INFO] running `"docker" "inspect" "3a9157062a8a9519769c49a1695f10504ed6a9f0884cfae1c323666c96da3c0e"`
[INFO] running `"docker" "rm" "-f" "3a9157062a8a9519769c49a1695f10504ed6a9f0884cfae1c323666c96da3c0e"`
[INFO] [stdout] 3a9157062a8a9519769c49a1695f10504ed6a9f0884cfae1c323666c96da3c0e