[INFO] crate takuzu 0.6.0 is already in cache
[INFO] checking takuzu-0.6.0 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate takuzu 0.6.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate takuzu 0.6.0 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate takuzu 0.6.0
[INFO] finished tweaking crates.io crate takuzu 0.6.0
[INFO] tweaked toml for crates.io crate takuzu 0.6.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e8d3fd562944155dc6dea5c7057e72b96a7995180a7f0e2f182f07c46dd7368
[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" "0e8d3fd562944155dc6dea5c7057e72b96a7995180a7f0e2f182f07c46dd7368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e8d3fd562944155dc6dea5c7057e72b96a7995180a7f0e2f182f07c46dd7368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8d3fd562944155dc6dea5c7057e72b96a7995180a7f0e2f182f07c46dd7368", kill_on_drop: false }`
[INFO] [stdout] 0e8d3fd562944155dc6dea5c7057e72b96a7995180a7f0e2f182f07c46dd7368
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8c2678a11f0554f5dd74c1d49fec3066c72d5627261690418920d6a726b1e5b
[INFO] running `Command { std: "docker" "start" "-a" "a8c2678a11f0554f5dd74c1d49fec3066c72d5627261690418920d6a726b1e5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking takuzu v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grid/error.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn 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/grid/error.rs:78:32
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/source/error.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/grid/error.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn 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/grid/error.rs:78:32
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/source/error.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/grid/error.rs:28:61
[INFO] [stdout]    |
[INFO] [stdout] 28 |             BadSize(ref err)    => write!(f, "{}: {}", self.description(), err),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/grid/error.rs:29:53
[INFO] [stdout]    |
[INFO] [stdout] 29 |             UnexpectedCharacter => f.write_str(self.description()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/grid/error.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Illegal => f.write_str(self.description()),
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grid/error.rs:100:47
[INFO] [stdout]     |
[INFO] [stdout] 100 |             EmptyGrid     => f.write_str(self.description()),
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grid/error.rs:101:61
[INFO] [stdout]     |
[INFO] [stdout] 101 |             NotASquare(n) => write!(f, "{} (line {})", self.description(), n),
[INFO] [stdout]     |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grid/error.rs:102:47
[INFO] [stdout]     |
[INFO] [stdout] 102 |             OddNumberSize => f.write_str(self.description()),
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/source/error.rs:25:58
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Io(ref err)      => write!(f, "{}: {}", self.description(), err),
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/source/error.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Parsing(ref err) => write!(f, "{}: {}", self.description(), err),
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/grid/error.rs:28:61
[INFO] [stdout]    |
[INFO] [stdout] 28 |             BadSize(ref err)    => write!(f, "{}: {}", self.description(), err),
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/grid/error.rs:29:53
[INFO] [stdout]    |
[INFO] [stdout] 29 |             UnexpectedCharacter => f.write_str(self.description()),
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/grid/error.rs:66:41
[INFO] [stdout]    |
[INFO] [stdout] 66 |             Illegal => f.write_str(self.description()),
[INFO] [stdout]    |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grid/error.rs:100:47
[INFO] [stdout]     |
[INFO] [stdout] 100 |             EmptyGrid     => f.write_str(self.description()),
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grid/error.rs:101:61
[INFO] [stdout]     |
[INFO] [stdout] 101 |             NotASquare(n) => write!(f, "{} (line {})", self.description(), n),
[INFO] [stdout]     |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/grid/error.rs:102:47
[INFO] [stdout]     |
[INFO] [stdout] 102 |             OddNumberSize => f.write_str(self.description()),
[INFO] [stdout]     |                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/source/error.rs:25:58
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Io(ref err)      => write!(f, "{}: {}", self.description(), err),
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/source/error.rs:26:58
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Parsing(ref err) => write!(f, "{}: {}", self.description(), err),
[INFO] [stdout]    |                                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "a8c2678a11f0554f5dd74c1d49fec3066c72d5627261690418920d6a726b1e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8c2678a11f0554f5dd74c1d49fec3066c72d5627261690418920d6a726b1e5b", kill_on_drop: false }`
[INFO] [stdout] a8c2678a11f0554f5dd74c1d49fec3066c72d5627261690418920d6a726b1e5b