[INFO] fetching crate libmount 0.1.15...
[INFO] building libmount-0.1.15 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate libmount 0.1.15 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate libmount 0.1.15 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate libmount 0.1.15 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dae0426d8f90330e5c16c25610325eea47b53537b22ab97d1df98e81afa8ead
[INFO] running `Command { std: "docker" "start" "-a" "7dae0426d8f90330e5c16c25610325eea47b53537b22ab97d1df98e81afa8ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dae0426d8f90330e5c16c25610325eea47b53537b22ab97d1df98e81afa8ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dae0426d8f90330e5c16c25610325eea47b53537b22ab97d1df98e81afa8ead", kill_on_drop: false }`
[INFO] [stdout] 7dae0426d8f90330e5c16c25610325eea47b53537b22ab97d1df98e81afa8ead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93d6176f07d4a8646081a95f7ffc9a5e62890bc840f2b64d802be7ff0abd01d3
[INFO] running `Command { std: "docker" "start" "-a" "93d6176f07d4a8646081a95f7ffc9a5e62890bc840f2b64d802be7ff0abd01d3", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling libmount v0.1.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bind.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(Remount::new(OsStr::from_bytes(self.target.as_bytes()))
[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/bind.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |             try!(write!(fmt, "recursive "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |             try!(write!(fmt, "{}bind", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             try!(write!(fmt, "{}ro", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             try!(write!(fmt, "{}nodev", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             try!(write!(fmt, "{}noexec", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             try!(write!(fmt, "{}nosuid", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             try!(write!(fmt, "{}noatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             try!(write!(fmt, "{}nodiratime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:219:13
[INFO] [stdout]     |
[INFO] [stdout] 219 |             try!(write!(fmt, "{}relatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |             try!(write!(fmt, "{}strictatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |             try!(write!(fmt, "{}dirsync", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             try!(write!(fmt, "{}sync", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |             try!(write!(fmt, "{}mand", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             try!(write!(fmt, "{} ", self.flags));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     try!(mountinfo_file.read_to_end(&mut mountinfo_content)
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:263:25
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let mut mpath = try!(current_dir());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:269:30
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let mut mountinfo_file = try!(File::open(mountinfo_path)
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:175:27
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let (mount_id, row) = try!(parse_int(row));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:176:28
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let (parent_id, row) = try!(parse_int(row));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:177:31
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let (major, minor, row) = try!(parse_major_minor(row));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let (root, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:179:30
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let (mount_point, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:180:32
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let (mount_options, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let (optional_fields, row) = try!(parse_optional(row));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let (fstype, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:183:31
[INFO] [stdout]     |
[INFO] [stdout] 183 |     let (mount_source, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:184:30
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let (super_options, _) = try!(parse_os_str(row));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:238:25
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:245:25
[INFO] [stdout]     |
[INFO] [stdout] 245 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let v = try!(std::str::from_utf8(field).map_err(|e| {
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:250:13
[INFO] [stdout]     |
[INFO] [stdout] 250 |     let v = try!(c_ulong::from_str_radix(v, 10).map_err(|e| {
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:259:31
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let (major_field, data) = try!(parse_field(data, b":"));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:260:31
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let (minor_field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:261:22
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let (major, _) = try!(parse_int(major_field));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (minor, _) = try!(parse_int(minor_field));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:269:25
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let (field, tail) = try!(parse_field(data, b"- "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / quick_error! {
[INFO] [stdout] 50 | |     #[derive(Debug)]
[INFO] [stdout] 51 | |     enum MountError {
[INFO] [stdout] 52 | |         Io(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / quick_error! {
[INFO] [stdout] 50 | |     #[derive(Debug)]
[INFO] [stdout] 51 | |     enum MountError {
[INFO] [stdout] 52 | |         Io(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:78:36
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stdout]    |                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct OSError(MountError, Box<dyn Explainable>);
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct Error(Box<dyn Explainable>, io::Error, String);
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:81:53
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn from_remount(err: RemountError, explain: Box<dyn Explainable>) -> OSError {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:85:47
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn from_nix(err: nix::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn from_nix(err: nix::Error, explain: Box<dyn Explainable>) -> OSError {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |         self.0.description()
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |        self.1.description()
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/remount.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mountinfo.rs:51:32
[INFO] [stdout]    |
[INFO] [stdout] 51 |             self.row_num, self.description(), self.row)
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tmpfs.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut options = self.format_options();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "93d6176f07d4a8646081a95f7ffc9a5e62890bc840f2b64d802be7ff0abd01d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d6176f07d4a8646081a95f7ffc9a5e62890bc840f2b64d802be7ff0abd01d3", kill_on_drop: false }`
[INFO] [stdout] 93d6176f07d4a8646081a95f7ffc9a5e62890bc840f2b64d802be7ff0abd01d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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 -Dtail-expr-drop-order" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2128885e80f3adb1b256c431737212742c226811f0158946e87aa1a7c8b21501
[INFO] running `Command { std: "docker" "start" "-a" "2128885e80f3adb1b256c431737212742c226811f0158946e87aa1a7c8b21501", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bind.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(Remount::new(OsStr::from_bytes(self.target.as_bytes()))
[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/bind.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |             try!(write!(fmt, "recursive "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |             try!(write!(fmt, "{}bind", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             try!(write!(fmt, "{}ro", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             try!(write!(fmt, "{}nodev", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             try!(write!(fmt, "{}noexec", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             try!(write!(fmt, "{}nosuid", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             try!(write!(fmt, "{}noatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             try!(write!(fmt, "{}nodiratime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:219:13
[INFO] [stdout]     |
[INFO] [stdout] 219 |             try!(write!(fmt, "{}relatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |             try!(write!(fmt, "{}strictatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |             try!(write!(fmt, "{}dirsync", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             try!(write!(fmt, "{}sync", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |             try!(write!(fmt, "{}mand", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             try!(write!(fmt, "{} ", self.flags));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     try!(mountinfo_file.read_to_end(&mut mountinfo_content)
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:263:25
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let mut mpath = try!(current_dir());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:269:30
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let mut mountinfo_file = try!(File::open(mountinfo_path)
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:175:27
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let (mount_id, row) = try!(parse_int(row));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:176:28
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let (parent_id, row) = try!(parse_int(row));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:177:31
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let (major, minor, row) = try!(parse_major_minor(row));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let (root, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:179:30
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let (mount_point, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:180:32
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let (mount_options, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let (optional_fields, row) = try!(parse_optional(row));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let (fstype, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:183:31
[INFO] [stdout]     |
[INFO] [stdout] 183 |     let (mount_source, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:184:30
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let (super_options, _) = try!(parse_os_str(row));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:238:25
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:245:25
[INFO] [stdout]     |
[INFO] [stdout] 245 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let v = try!(std::str::from_utf8(field).map_err(|e| {
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:250:13
[INFO] [stdout]     |
[INFO] [stdout] 250 |     let v = try!(c_ulong::from_str_radix(v, 10).map_err(|e| {
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:259:31
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let (major_field, data) = try!(parse_field(data, b":"));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:260:31
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let (minor_field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:261:22
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let (major, _) = try!(parse_int(major_field));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (minor, _) = try!(parse_int(minor_field));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:269:25
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let (field, tail) = try!(parse_field(data, b"- "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / quick_error! {
[INFO] [stdout] 50 | |     #[derive(Debug)]
[INFO] [stdout] 51 | |     enum MountError {
[INFO] [stdout] 52 | |         Io(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / quick_error! {
[INFO] [stdout] 50 | |     #[derive(Debug)]
[INFO] [stdout] 51 | |     enum MountError {
[INFO] [stdout] 52 | |         Io(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:78:36
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stdout]    |                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct OSError(MountError, Box<dyn Explainable>);
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct Error(Box<dyn Explainable>, io::Error, String);
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:81:53
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn from_remount(err: RemountError, explain: Box<dyn Explainable>) -> OSError {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:85:47
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn from_nix(err: nix::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn from_nix(err: nix::Error, explain: Box<dyn Explainable>) -> OSError {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |         self.0.description()
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |        self.1.description()
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/remount.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mountinfo.rs:51:32
[INFO] [stdout]    |
[INFO] [stdout] 51 |             self.row_num, self.description(), self.row)
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tmpfs.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut options = self.format_options();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling libmount v0.1.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/bind.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             try!(Remount::new(OsStr::from_bytes(self.target.as_bytes()))
[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/bind.rs:92:13
[INFO] [stdout]    |
[INFO] [stdout] 92 |             try!(write!(fmt, "recursive "));
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |             try!(write!(fmt, "{}bind", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             try!(write!(fmt, "{}ro", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:199:13
[INFO] [stdout]     |
[INFO] [stdout] 199 |             try!(write!(fmt, "{}nodev", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |             try!(write!(fmt, "{}noexec", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |             try!(write!(fmt, "{}nosuid", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:211:13
[INFO] [stdout]     |
[INFO] [stdout] 211 |             try!(write!(fmt, "{}noatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             try!(write!(fmt, "{}nodiratime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:219:13
[INFO] [stdout]     |
[INFO] [stdout] 219 |             try!(write!(fmt, "{}relatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |             try!(write!(fmt, "{}strictatime", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |             try!(write!(fmt, "{}dirsync", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:231:13
[INFO] [stdout]     |
[INFO] [stdout] 231 |             try!(write!(fmt, "{}sync", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:235:13
[INFO] [stdout]     |
[INFO] [stdout] 235 |             try!(write!(fmt, "{}mand", prefix));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 |             try!(write!(fmt, "{} ", self.flags));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:272:5
[INFO] [stdout]     |
[INFO] [stdout] 272 |     try!(mountinfo_file.read_to_end(&mut mountinfo_content)
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:263:25
[INFO] [stdout]     |
[INFO] [stdout] 263 |         let mut mpath = try!(current_dir());
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/remount.rs:269:30
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let mut mountinfo_file = try!(File::open(mountinfo_path)
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:175:27
[INFO] [stdout]     |
[INFO] [stdout] 175 |     let (mount_id, row) = try!(parse_int(row));
[INFO] [stdout]     |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:176:28
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let (parent_id, row) = try!(parse_int(row));
[INFO] [stdout]     |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:177:31
[INFO] [stdout]     |
[INFO] [stdout] 177 |     let (major, minor, row) = try!(parse_major_minor(row));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |     let (root, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:179:30
[INFO] [stdout]     |
[INFO] [stdout] 179 |     let (mount_point, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:180:32
[INFO] [stdout]     |
[INFO] [stdout] 180 |     let (mount_options, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |     let (optional_fields, row) = try!(parse_optional(row));
[INFO] [stdout]     |                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:182:25
[INFO] [stdout]     |
[INFO] [stdout] 182 |     let (fstype, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:183:31
[INFO] [stdout]     |
[INFO] [stdout] 183 |     let (mount_source, row) = try!(parse_os_str(row));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:184:30
[INFO] [stdout]     |
[INFO] [stdout] 184 |     let (super_options, _) = try!(parse_os_str(row));
[INFO] [stdout]     |                              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:238:25
[INFO] [stdout]     |
[INFO] [stdout] 238 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:245:25
[INFO] [stdout]     |
[INFO] [stdout] 245 |     let (field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:246:13
[INFO] [stdout]     |
[INFO] [stdout] 246 |     let v = try!(std::str::from_utf8(field).map_err(|e| {
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:250:13
[INFO] [stdout]     |
[INFO] [stdout] 250 |     let v = try!(c_ulong::from_str_radix(v, 10).map_err(|e| {
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:259:31
[INFO] [stdout]     |
[INFO] [stdout] 259 |     let (major_field, data) = try!(parse_field(data, b":"));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:260:31
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let (minor_field, tail) = try!(parse_field(data, b" "));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:261:22
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let (major, _) = try!(parse_int(major_field));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:262:22
[INFO] [stdout]     |
[INFO] [stdout] 262 |     let (minor, _) = try!(parse_int(minor_field));
[INFO] [stdout]     |                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/mountinfo.rs:269:25
[INFO] [stdout]     |
[INFO] [stdout] 269 |     let (field, tail) = try!(parse_field(data, b"- "));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / quick_error! {
[INFO] [stdout] 50 | |     #[derive(Debug)]
[INFO] [stdout] 51 | |     enum MountError {
[INFO] [stdout] 52 | |         Io(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/lib.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | / quick_error! {
[INFO] [stdout] 50 | |     #[derive(Debug)]
[INFO] [stdout] 51 | |     enum MountError {
[INFO] [stdout] 52 | |         Io(err: io::Error) {
[INFO] [stdout] ...  |
[INFO] [stdout] 61 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `quick_error` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:78:36
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stdout]    |                                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub struct OSError(MountError, Box<dyn Explainable>);
[INFO] [stdout]    |                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:101:22
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stdout]     |                      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 101 | pub struct Error(Box<dyn Explainable>, io::Error, String);
[INFO] [stdout]     |                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:81:53
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn from_remount(err: RemountError, explain: Box<dyn Explainable>) -> OSError {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:85:47
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn from_nix(err: nix::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stdout]    |                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn from_nix(err: nix::Error, explain: Box<dyn Explainable>) -> OSError {
[INFO] [stdout]    |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:35:32
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/error.rs:50:32
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stdout]    |                                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn cause(&self) -> Option<&dyn StdError> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 |         self.0.description()
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:54:15
[INFO] [stdout]    |
[INFO] [stdout] 54 |        self.1.description()
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/remount.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |             description(err.description())
[INFO] [stdout]    |                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/mountinfo.rs:51:32
[INFO] [stdout]    |
[INFO] [stdout] 51 |             self.row_num, self.description(), self.row)
[INFO] [stdout]    |                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tmpfs.rs:116:13
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let mut options = self.format_options();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `Command { std: "docker" "inspect" "2128885e80f3adb1b256c431737212742c226811f0158946e87aa1a7c8b21501", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2128885e80f3adb1b256c431737212742c226811f0158946e87aa1a7c8b21501", kill_on_drop: false }`
[INFO] [stdout] 2128885e80f3adb1b256c431737212742c226811f0158946e87aa1a7c8b21501