[INFO] cloning repository https://github.com/sile/rust-dawg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sile/rust-dawg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Frust-dawg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Frust-dawg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5abb62747f1e9c30ff2865961b770b571422c23c
[INFO] checking sile/rust-dawg against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsile%2Frust-dawg" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sile/rust-dawg on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sile/rust-dawg
[INFO] finished tweaking git repo https://github.com/sile/rust-dawg
[INFO] tweaked toml for git repo https://github.com/sile/rust-dawg written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/sile/rust-dawg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] 590ba56010ec2d6aefeaf1a56f19ba02c835cdc6f4ce739f5cefe6ff9dcd6878
[INFO] running `Command { std: "docker" "start" "-a" "590ba56010ec2d6aefeaf1a56f19ba02c835cdc6f4ce739f5cefe6ff9dcd6878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "590ba56010ec2d6aefeaf1a56f19ba02c835cdc6f4ce739f5cefe6ff9dcd6878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590ba56010ec2d6aefeaf1a56f19ba02c835cdc6f4ce739f5cefe6ff9dcd6878", kill_on_drop: false }`
[INFO] [stdout] 590ba56010ec2d6aefeaf1a56f19ba02c835cdc6f4ce739f5cefe6ff9dcd6878
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49f0d9d43dd960b5e09dce330a625294bba58012a8402cc5c28fa9fa0f346d72
[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" "49f0d9d43dd960b5e09dce330a625294bba58012a8402cc5c28fa9fa0f346d72", kill_on_drop: false }`
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking dawg v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/binary_tree/builder.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.insert_word(&mut root, word));
[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/binary_tree/builder.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 try!(self.add_new_child(&mut child, word.next(), word));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:68:36
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut r = BufReader::new(try!(File::open(index_file_path)));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let node_count = try!(read_u32(&mut r)) / 8;
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let ext_count = try!(read_u32(&mut r)) / 4;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:74:24
[INFO] [stdout]    |
[INFO] [stdout] 74 |             nodes.push(try!(read_u64(&mut r)));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:79:23
[INFO] [stdout]    |
[INFO] [stdout] 79 |             exts.push(try!(read_u32(&mut r)));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut w = BufWriter::new(try!(File::create(index_file_path)));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         try!(write_u32(&mut w, self.nodes.len() as u32 * 8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write_u32(&mut w, self.exts.len() as u32 * 4));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |             try!(write_u64(&mut w, *n));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             try!(write_u32(&mut w, *e));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/double_array/trie.rs:101:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let size = try!(r.read(&mut buf));
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/double_array/trie.rs:108:16
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let size = try!(r.read(&mut buf));
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/binary_tree/node.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | /         (self.child.as_ref().map(|n| n.addr()) == other.child.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 28 | |          self.sibling.as_ref().map(|n| n.addr()) == other.sibling.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 29 | |          self.ch == other.ch && self.is_terminal == other.is_terminal)
[INFO] [stdout]    | |______________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 |         self.child.as_ref().map(|n| n.addr()) == other.child.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 28 |          self.sibling.as_ref().map(|n| n.addr()) == other.sibling.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 29 |          self.ch == other.ch && self.is_terminal == other.is_terminal
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/binary_tree/builder.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         try!(self.insert_word(&mut root, word));
[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/binary_tree/builder.rs:76:17
[INFO] [stdout]    |
[INFO] [stdout] 76 |                 try!(self.add_new_child(&mut child, word.next(), word));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:68:36
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut r = BufReader::new(try!(File::open(index_file_path)));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let node_count = try!(read_u32(&mut r)) / 8;
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let ext_count = try!(read_u32(&mut r)) / 4;
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:74:24
[INFO] [stdout]    |
[INFO] [stdout] 74 |             nodes.push(try!(read_u64(&mut r)));
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:79:23
[INFO] [stdout]    |
[INFO] [stdout] 79 |             exts.push(try!(read_u32(&mut r)));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:86:36
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let mut w = BufWriter::new(try!(File::create(index_file_path)));
[INFO] [stdout]    |                                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 87 |         try!(write_u32(&mut w, self.nodes.len() as u32 * 8));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         try!(write_u32(&mut w, self.exts.len() as u32 * 4));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |             try!(write_u64(&mut w, *n));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/double_array/trie.rs:93:13
[INFO] [stdout]    |
[INFO] [stdout] 93 |             try!(write_u32(&mut w, *e));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/double_array/trie.rs:101:16
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let size = try!(r.read(&mut buf));
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/double_array/trie.rs:108:16
[INFO] [stdout]     |
[INFO] [stdout] 108 |     let size = try!(r.read(&mut buf));
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/binary_tree/node.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | /         (self.child.as_ref().map(|n| n.addr()) == other.child.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 28 | |          self.sibling.as_ref().map(|n| n.addr()) == other.sibling.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 29 | |          self.ch == other.ch && self.is_terminal == other.is_terminal)
[INFO] [stdout]    | |______________________________________________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 27 |         self.child.as_ref().map(|n| n.addr()) == other.child.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 28 |          self.sibling.as_ref().map(|n| n.addr()) == other.sibling.as_ref().map(|n| n.addr()) &&
[INFO] [stdout] 29 |          self.ch == other.ch && self.is_terminal == other.is_terminal
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::slice_unchecked`: use `get_unchecked(begin..end)` instead
[INFO] [stdout]   --> src/bin/dawg_search.rs:48:36
[INFO] [stdout]    |
[INFO] [stdout] 48 |                      unsafe { line.slice_unchecked(0, prefix_len) });
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::slice_unchecked`: use `get_unchecked(begin..end)` instead
[INFO] [stdout]   --> src/bin/dawg_search.rs:48:36
[INFO] [stdout]    |
[INFO] [stdout] 48 |                      unsafe { line.slice_unchecked(0, prefix_len) });
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.84s
[INFO] running `Command { std: "docker" "inspect" "49f0d9d43dd960b5e09dce330a625294bba58012a8402cc5c28fa9fa0f346d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49f0d9d43dd960b5e09dce330a625294bba58012a8402cc5c28fa9fa0f346d72", kill_on_drop: false }`
[INFO] [stdout] 49f0d9d43dd960b5e09dce330a625294bba58012a8402cc5c28fa9fa0f346d72