[INFO] fetching crate wifiscanner 0.3.6...
[INFO] checking wifiscanner-0.3.6 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate wifiscanner 0.3.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wifiscanner 0.3.6 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate wifiscanner 0.3.6
[INFO] finished tweaking crates.io crate wifiscanner 0.3.6
[INFO] tweaked toml for crates.io crate wifiscanner 0.3.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] d61de64fc3e107ae587868b8c05e9b2ed887c9466a4ee7fa7deecd9fb5a872a4
[INFO] running `"docker" "start" "-a" "d61de64fc3e107ae587868b8c05e9b2ed887c9466a4ee7fa7deecd9fb5a872a4"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking wifiscanner v0.3.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let output = try!(Command::new("iwlist")
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:143:22
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let cell_regex = try!(Regex::new(r"Cell [0-9]{2,} - Address:")
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         try!(Regex::new(r"([0-9a-zA-Z]{1}[0-9a-zA-Z]{1}[:]{1}){5}[0-9a-zA-Z]{1}[0-9a-zA-Z]{1}")
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:159:46
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let mac_matches = mac_regex.captures(try!(lines.next().ok_or(Error::NoValue)));
[INFO] [stderr]     |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:30
[INFO] [stderr]     |
[INFO] [stderr] 190 |                     let re = try!(Regex::new(r"Signal level=(\d+)/100")
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:192:37
[INFO] [stderr]     |
[INFO] [stderr] 192 |                     let value_raw = try!(try!(re.captures(line).ok_or(Error::FailedToParse))
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:192:42
[INFO] [stderr]     |
[INFO] [stderr] 192 |                     let value_raw = try!(try!(re.captures(line).ok_or(Error::FailedToParse))
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:195:33
[INFO] [stderr]     |
[INFO] [stderr] 195 |                     let value = try!(value_raw.parse::<i32>().map_err(|_| Error::FailedToParse));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:94:18
[INFO] [stderr]    |
[INFO] [stderr] 94 |     let output = try!(Command::new("iwlist")
[INFO] [stderr]    |                  ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:143:22
[INFO] [stderr]     |
[INFO] [stderr] 143 |     let cell_regex = try!(Regex::new(r"Cell [0-9]{2,} - Address:")
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         try!(Regex::new(r"([0-9a-zA-Z]{1}[0-9a-zA-Z]{1}[:]{1}){5}[0-9a-zA-Z]{1}[0-9a-zA-Z]{1}")
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:159:46
[INFO] [stderr]     |
[INFO] [stderr] 159 |         let mac_matches = mac_regex.captures(try!(lines.next().ok_or(Error::NoValue)));
[INFO] [stderr]     |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:30
[INFO] [stderr]     |
[INFO] [stderr] 190 |                     let re = try!(Regex::new(r"Signal level=(\d+)/100")
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:192:37
[INFO] [stderr]     |
[INFO] [stderr] 192 |                     let value_raw = try!(try!(re.captures(line).ok_or(Error::FailedToParse))
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:192:42
[INFO] [stderr]     |
[INFO] [stderr] 192 |                     let value_raw = try!(try!(re.captures(line).ok_or(Error::FailedToParse))
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:195:33
[INFO] [stderr]     |
[INFO] [stderr] 195 |                     let value = try!(value_raw.parse::<i32>().map_err(|_| Error::FailedToParse));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/lib.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |     let result = file.read_to_string(&mut filestr).unwrap();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/lib.rs:303:9
[INFO] [stderr]     |
[INFO] [stderr] 303 |     let result = file.read_to_string(&mut filestr).unwrap();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/lib.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |     let result = file.read_to_string(&mut filestr).unwrap();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `wifiscanner` is imported redundantly
[INFO] [stderr]  --> examples/scan.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate wifiscanner;
[INFO] [stderr]   | ------------------------- the item `wifiscanner` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 4 |     use wifiscanner;
[INFO] [stderr]   |         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "d61de64fc3e107ae587868b8c05e9b2ed887c9466a4ee7fa7deecd9fb5a872a4"`
[INFO] running `"docker" "rm" "-f" "d61de64fc3e107ae587868b8c05e9b2ed887c9466a4ee7fa7deecd9fb5a872a4"`
[INFO] [stdout] d61de64fc3e107ae587868b8c05e9b2ed887c9466a4ee7fa7deecd9fb5a872a4