[INFO] fetching crate libmount 0.1.15...
[INFO] checking libmount-0.1.15 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate libmount 0.1.15 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate libmount 0.1.15 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libmount 0.1.15
[INFO] finished tweaking crates.io crate libmount 0.1.15
[INFO] tweaked toml for crates.io crate libmount 0.1.15 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate libmount 0.1.15 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 09aa3068e1ef7550a0e8cf05c31cc0dd159c69b846e80c9f2ca67b03636150b3
[INFO] running `"docker" "start" "-a" "09aa3068e1ef7550a0e8cf05c31cc0dd159c69b846e80c9f2ca67b03636150b3"`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking libmount v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bind.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             try!(Remount::new(OsStr::from_bytes(self.target.as_bytes()))
[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/bind.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |             try!(write!(fmt, "recursive "));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |             try!(write!(fmt, "{}bind", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |             try!(write!(fmt, "{}ro", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |             try!(write!(fmt, "{}nodev", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:203:13
[INFO] [stderr]     |
[INFO] [stderr] 203 |             try!(write!(fmt, "{}noexec", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             try!(write!(fmt, "{}nosuid", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             try!(write!(fmt, "{}noatime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |             try!(write!(fmt, "{}nodiratime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:219:13
[INFO] [stderr]     |
[INFO] [stderr] 219 |             try!(write!(fmt, "{}relatime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:223:13
[INFO] [stderr]     |
[INFO] [stderr] 223 |             try!(write!(fmt, "{}strictatime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:227:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |             try!(write!(fmt, "{}dirsync", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |             try!(write!(fmt, "{}sync", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:235:13
[INFO] [stderr]     |
[INFO] [stderr] 235 |             try!(write!(fmt, "{}mand", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(write!(fmt, "{} ", self.flags));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:263:25
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut mpath = try!(current_dir());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:269:30
[INFO] [stderr]     |
[INFO] [stderr] 269 |     let mut mountinfo_file = try!(File::open(mountinfo_path)
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     try!(mountinfo_file.read_to_end(&mut mountinfo_content)
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:175:27
[INFO] [stderr]     |
[INFO] [stderr] 175 |     let (mount_id, row) = try!(parse_int(row));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:176:28
[INFO] [stderr]     |
[INFO] [stderr] 176 |     let (parent_id, row) = try!(parse_int(row));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:177:31
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let (major, minor, row) = try!(parse_major_minor(row));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:178:23
[INFO] [stderr]     |
[INFO] [stderr] 178 |     let (root, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:179:30
[INFO] [stderr]     |
[INFO] [stderr] 179 |     let (mount_point, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |     let (mount_options, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:181:34
[INFO] [stderr]     |
[INFO] [stderr] 181 |     let (optional_fields, row) = try!(parse_optional(row));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:182:25
[INFO] [stderr]     |
[INFO] [stderr] 182 |     let (fstype, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:183:31
[INFO] [stderr]     |
[INFO] [stderr] 183 |     let (mount_source, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:184:30
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let (super_options, _) = try!(parse_os_str(row));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:238:25
[INFO] [stderr]     |
[INFO] [stderr] 238 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:245:25
[INFO] [stderr]     |
[INFO] [stderr] 245 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:246:13
[INFO] [stderr]     |
[INFO] [stderr] 246 |     let v = try!(std::str::from_utf8(field).map_err(|e| {
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |     let v = try!(c_ulong::from_str_radix(v, 10).map_err(|e| {
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:259:31
[INFO] [stderr]     |
[INFO] [stderr] 259 |     let (major_field, data) = try!(parse_field(data, b":"));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:260:31
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let (minor_field, tail) = try!(parse_field(data, b" "));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:261:22
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let (major, _) = try!(parse_int(major_field));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:262:22
[INFO] [stderr]     |
[INFO] [stderr] 262 |     let (minor, _) = try!(parse_int(minor_field));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:269:25
[INFO] [stderr]     |
[INFO] [stderr] 269 |     let (field, tail) = try!(parse_field(data, b"- "));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:53
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:85:47
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn from_nix(err: nix::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                               ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stderr]     |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/bind.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             try!(Remount::new(OsStr::from_bytes(self.target.as_bytes()))
[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/bind.rs:92:13
[INFO] [stderr]    |
[INFO] [stderr] 92 |             try!(write!(fmt, "recursive "));
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |             try!(write!(fmt, "{}bind", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |             try!(write!(fmt, "{}ro", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:199:13
[INFO] [stderr]     |
[INFO] [stderr] 199 |             try!(write!(fmt, "{}nodev", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:203:13
[INFO] [stderr]     |
[INFO] [stderr] 203 |             try!(write!(fmt, "{}noexec", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:207:13
[INFO] [stderr]     |
[INFO] [stderr] 207 |             try!(write!(fmt, "{}nosuid", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:211:13
[INFO] [stderr]     |
[INFO] [stderr] 211 |             try!(write!(fmt, "{}noatime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |             try!(write!(fmt, "{}nodiratime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:219:13
[INFO] [stderr]     |
[INFO] [stderr] 219 |             try!(write!(fmt, "{}relatime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:223:13
[INFO] [stderr]     |
[INFO] [stderr] 223 |             try!(write!(fmt, "{}strictatime", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:227:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |             try!(write!(fmt, "{}dirsync", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |             try!(write!(fmt, "{}sync", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:235:13
[INFO] [stderr]     |
[INFO] [stderr] 235 |             try!(write!(fmt, "{}mand", prefix));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:244:13
[INFO] [stderr]     |
[INFO] [stderr] 244 |             try!(write!(fmt, "{} ", self.flags));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:263:25
[INFO] [stderr]     |
[INFO] [stderr] 263 |         let mut mpath = try!(current_dir());
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:269:30
[INFO] [stderr]     |
[INFO] [stderr] 269 |     let mut mountinfo_file = try!(File::open(mountinfo_path)
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/remount.rs:272:5
[INFO] [stderr]     |
[INFO] [stderr] 272 |     try!(mountinfo_file.read_to_end(&mut mountinfo_content)
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:175:27
[INFO] [stderr]     |
[INFO] [stderr] 175 |     let (mount_id, row) = try!(parse_int(row));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:176:28
[INFO] [stderr]     |
[INFO] [stderr] 176 |     let (parent_id, row) = try!(parse_int(row));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:177:31
[INFO] [stderr]     |
[INFO] [stderr] 177 |     let (major, minor, row) = try!(parse_major_minor(row));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:178:23
[INFO] [stderr]     |
[INFO] [stderr] 178 |     let (root, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:179:30
[INFO] [stderr]     |
[INFO] [stderr] 179 |     let (mount_point, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |     let (mount_options, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:181:34
[INFO] [stderr]     |
[INFO] [stderr] 181 |     let (optional_fields, row) = try!(parse_optional(row));
[INFO] [stderr]     |                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:182:25
[INFO] [stderr]     |
[INFO] [stderr] 182 |     let (fstype, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:183:31
[INFO] [stderr]     |
[INFO] [stderr] 183 |     let (mount_source, row) = try!(parse_os_str(row));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:184:30
[INFO] [stderr]     |
[INFO] [stderr] 184 |     let (super_options, _) = try!(parse_os_str(row));
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:238:25
[INFO] [stderr]     |
[INFO] [stderr] 238 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:245:25
[INFO] [stderr]     |
[INFO] [stderr] 245 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:246:13
[INFO] [stderr]     |
[INFO] [stderr] 246 |     let v = try!(std::str::from_utf8(field).map_err(|e| {
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:250:13
[INFO] [stderr]     |
[INFO] [stderr] 250 |     let v = try!(c_ulong::from_str_radix(v, 10).map_err(|e| {
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:259:31
[INFO] [stderr]     |
[INFO] [stderr] 259 |     let (major_field, data) = try!(parse_field(data, b":"));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:260:31
[INFO] [stderr]     |
[INFO] [stderr] 260 |     let (minor_field, tail) = try!(parse_field(data, b" "));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:261:22
[INFO] [stderr]     |
[INFO] [stderr] 261 |     let (major, _) = try!(parse_int(major_field));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:262:22
[INFO] [stderr]     |
[INFO] [stderr] 262 |     let (minor, _) = try!(parse_int(minor_field));
[INFO] [stderr]     |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/mountinfo.rs:269:25
[INFO] [stderr]     |
[INFO] [stderr] 269 |     let (field, tail) = try!(parse_field(data, b"- "));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:53
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:85:47
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn from_nix(err: nix::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                               ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:101:22
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stderr]     |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / quick_error! {
[INFO] [stderr] 50 | |     #[derive(Debug)]
[INFO] [stderr] 51 | |     enum MountError {
[INFO] [stderr] 52 | |         Io(err: io::Error) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |     }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / quick_error! {
[INFO] [stderr] 50 | |     #[derive(Debug)]
[INFO] [stderr] 51 | |     enum MountError {
[INFO] [stderr] 52 | |         Io(err: io::Error) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |     }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / quick_error! {
[INFO] [stderr] 50 | |     #[derive(Debug)]
[INFO] [stderr] 51 | |     enum MountError {
[INFO] [stderr] 52 | |         Io(err: io::Error) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |     }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/lib.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | / quick_error! {
[INFO] [stderr] 50 | |     #[derive(Debug)]
[INFO] [stderr] 51 | |     enum MountError {
[INFO] [stderr] 52 | |         Io(err: io::Error) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |     }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |         self.0.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/error.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |        self.1.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/error.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 |         self.0.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/error.rs:54:15
[INFO] [stderr]    |
[INFO] [stderr] 54 |        self.1.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/mountinfo.rs:51:32
[INFO] [stderr]    |
[INFO] [stderr] 51 |             self.row_num, self.description(), self.row)
[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/remount.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |             description(err.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/mountinfo.rs:51:32
[INFO] [stderr]    |
[INFO] [stderr] 51 |             self.row_num, self.description(), self.row)
[INFO] [stderr]    |                                ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tmpfs.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let mut options = self.format_options();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 50 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/remount.rs:76:29
[INFO] [stderr]    |
[INFO] [stderr] 76 |             description(err.description())
[INFO] [stderr]    |                             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tmpfs.rs:116:13
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let mut options = self.format_options();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 50 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.42s
[INFO] running `"docker" "inspect" "09aa3068e1ef7550a0e8cf05c31cc0dd159c69b846e80c9f2ca67b03636150b3"`
[INFO] running `"docker" "rm" "-f" "09aa3068e1ef7550a0e8cf05c31cc0dd159c69b846e80c9f2ca67b03636150b3"`
[INFO] [stdout] 09aa3068e1ef7550a0e8cf05c31cc0dd159c69b846e80c9f2ca67b03636150b3