[INFO] updating cached repository JimmyCastiel/bifrost
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JimmyCastiel/bifrost
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JimmyCastiel/bifrost" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/JimmyCastiel/bifrost"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/JimmyCastiel/bifrost'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JimmyCastiel/bifrost" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JimmyCastiel/bifrost"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JimmyCastiel/bifrost'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 010d282279bbb38766812284babf83f93c124152
[INFO] sha for GitHub repo JimmyCastiel/bifrost: 010d282279bbb38766812284babf83f93c124152
[INFO] validating manifest of JimmyCastiel/bifrost on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JimmyCastiel/bifrost on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JimmyCastiel/bifrost
[INFO] finished frobbing JimmyCastiel/bifrost
[INFO] frobbed toml for JimmyCastiel/bifrost written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/JimmyCastiel/bifrost/Cargo.toml
[INFO] started frobbing JimmyCastiel/bifrost
[INFO] finished frobbing JimmyCastiel/bifrost
[INFO] frobbed toml for JimmyCastiel/bifrost written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JimmyCastiel/bifrost/Cargo.toml
[INFO] crate JimmyCastiel/bifrost already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking JimmyCastiel/bifrost against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-7/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/JimmyCastiel/bifrost:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 171538bdc48c066cbf4eb9fadd34ff4f53e48e8572ca98c6b05dbec0b68bbcd2
[INFO] running `"docker" "start" "-a" "171538bdc48c066cbf4eb9fadd34ff4f53e48e8572ca98c6b05dbec0b68bbcd2"`
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking bifrost v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:330:29
[INFO] [stderr]     |
[INFO] [stderr] 330 |                             c.shutdown(Shutdown::Both);
[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 `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:350:21
[INFO] [stderr]     |
[INFO] [stderr] 350 |                     c.shutdown(Shutdown::Both);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:428:17
[INFO] [stderr]     |
[INFO] [stderr] 428 |                 self.raw_cmd(Some(&mut c), FtpCommandType::LIST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PASV, Some(if pasv { "true".to_owned() } else { "false".to_owned() }));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PWD, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:469:17
[INFO] [stderr]     |
[INFO] [stderr] 469 |                 self.raw_cmd(Some(&mut c), FtpCommandType::SYST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:330:29
[INFO] [stderr]     |
[INFO] [stderr] 330 |                             c.shutdown(Shutdown::Both);
[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 `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:350:21
[INFO] [stderr]     |
[INFO] [stderr] 350 |                     c.shutdown(Shutdown::Both);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:428:17
[INFO] [stderr]     |
[INFO] [stderr] 428 |                 self.raw_cmd(Some(&mut c), FtpCommandType::LIST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PASV, Some(if pasv { "true".to_owned() } else { "false".to_owned() }));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PWD, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:469:17
[INFO] [stderr]     |
[INFO] [stderr] 469 |                 self.raw_cmd(Some(&mut c), FtpCommandType::SYST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IpAddr`, `Ipv4Addr`
[INFO] [stderr]  --> src/main.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::net::{IpAddr,Ipv4Addr,ToSocketAddrs};
[INFO] [stderr]   |                ^^^^^^ ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IpAddr`, `Ipv4Addr`
[INFO] [stderr]  --> src/main.rs:5:16
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::net::{IpAddr,Ipv4Addr,ToSocketAddrs};
[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/bifrost/net/std/ftp.rs:330:29
[INFO] [stderr]     |
[INFO] [stderr] 330 |                             c.shutdown(Shutdown::Both);
[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 `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:350:21
[INFO] [stderr]     |
[INFO] [stderr] 350 |                     c.shutdown(Shutdown::Both);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:428:17
[INFO] [stderr]     |
[INFO] [stderr] 428 |                 self.raw_cmd(Some(&mut c), FtpCommandType::LIST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PASV, Some(if pasv { "true".to_owned() } else { "false".to_owned() }));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PWD, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:469:17
[INFO] [stderr]     |
[INFO] [stderr] 469 |                 self.raw_cmd(Some(&mut c), FtpCommandType::SYST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:330:29
[INFO] [stderr]     |
[INFO] [stderr] 330 |                             c.shutdown(Shutdown::Both);
[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 `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:350:21
[INFO] [stderr]     |
[INFO] [stderr] 350 |                     c.shutdown(Shutdown::Both);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:428:17
[INFO] [stderr]     |
[INFO] [stderr] 428 |                 self.raw_cmd(Some(&mut c), FtpCommandType::LIST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:441:17
[INFO] [stderr]     |
[INFO] [stderr] 441 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PASV, Some(if pasv { "true".to_owned() } else { "false".to_owned() }));
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 self.raw_cmd(Some(&mut c), FtpCommandType::PWD, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bifrost/net/std/ftp.rs:469:17
[INFO] [stderr]     |
[INFO] [stderr] 469 |                 self.raw_cmd(Some(&mut c), FtpCommandType::SYST, None);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.68s
[INFO] running `"docker" "inspect" "171538bdc48c066cbf4eb9fadd34ff4f53e48e8572ca98c6b05dbec0b68bbcd2"`
[INFO] running `"docker" "rm" "-f" "171538bdc48c066cbf4eb9fadd34ff4f53e48e8572ca98c6b05dbec0b68bbcd2"`
[INFO] [stdout] 171538bdc48c066cbf4eb9fadd34ff4f53e48e8572ca98c6b05dbec0b68bbcd2