[INFO] fetching crate fatr 0.2.0...
[INFO] testing fatr-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate fatr 0.2.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate fatr 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fatr 0.2.0
[INFO] finished tweaking crates.io crate fatr 0.2.0
[INFO] tweaked toml for crates.io crate fatr 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68896141d2a28ad82f71fd6ffd855ac6e32402e7aab548edf15c8587d219607d
[INFO] running `Command { std: "docker" "start" "-a" "68896141d2a28ad82f71fd6ffd855ac6e32402e7aab548edf15c8587d219607d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68896141d2a28ad82f71fd6ffd855ac6e32402e7aab548edf15c8587d219607d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68896141d2a28ad82f71fd6ffd855ac6e32402e7aab548edf15c8587d219607d", kill_on_drop: false }`
[INFO] [stdout] 68896141d2a28ad82f71fd6ffd855ac6e32402e7aab548edf15c8587d219607d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 085453903c850e2516318891794943736ba90e8680583d8e74df76d95fa48c18
[INFO] running `Command { std: "docker" "start" "-a" "085453903c850e2516318891794943736ba90e8680583d8e74df76d95fa48c18", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling fatr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/commands/add.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     expect_args!(args, 2);
[INFO] [stdout]    |     --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/commands/add.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |         return Err(errorf!("file {} already exists", file_name));
[INFO] [stdout]    |                    -------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/commands/add.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(image.write_data_sector(entry_index, &chunk));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |         ));
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/commands/detail.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     expect_args!(args, 2);
[INFO] [stdout]   |     --------------------- in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |         ));
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/commands/list.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     expect_args!(args, 1);
[INFO] [stdout]   |     --------------------- in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         try!(file.read_exact(&mut image.boot_sector));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         try!(file.read_exact(&mut image.fat_1));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         try!(file.read_exact(&mut image.fat_2));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         try!(file.read_exact(&mut image.root_dir));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         try!(file.read_exact(&mut image.data_area));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         try!(file.write_all(&self.boot_sector));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         try!(file.write_all(&self.fat_1));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         try!(file.write_all(&self.fat_2));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         try!(file.write_all(&self.root_dir));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         try!(file.write_all(&self.data_area));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/fat/image.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             try!(entry.set_filename(filename));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utils.rs:6:11
[INFO] [stdout]     |
[INFO] [stdout] 6   |         ));
[INFO] [stdout]     |           ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fat/image.rs:182:24
[INFO] [stdout]     |
[INFO] [stdout] 182 |             return Err(errorf!("sector {} too high to write to", sector));
[INFO] [stdout]     |                        ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fat/root_entry.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Err(errorf!("bad filename: \"{}\"", filename));
[INFO] [stdout]    |                        ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |         error(errorf!("command \"{}\" not recognized", command));
[INFO] [stdout]    |               ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (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/main.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn error(err: Box<error::Error>) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 - fn error(err: Box<error::Error>) {
[INFO] [stdout] 42 + fn error(err: Box<dyn error::Error>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands/mod.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 - type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[INFO] [stdout] 11 + type Command = fn (&[String]) -> Result<(), Box<dyn error::Error>>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands/add.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 -     -> Result<(), Box<error::Error>>
[INFO] [stdout] 10 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/commands/detail.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     -> Result<(), Box<error::Error>>
[INFO] [stdout] 6 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/commands/list.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     -> Result<(), Box<error::Error>>
[INFO] [stdout] 6 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/image.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 48 |         -> Result<Image, Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 -         -> Result<Image, Box<error::Error>>
[INFO] [stdout] 48 +         -> Result<Image, Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/image.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |         -> Result<RootEntry, Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 -         -> Result<RootEntry, Box<error::Error>>
[INFO] [stdout] 94 +         -> Result<RootEntry, Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:113:41
[INFO] [stdout]     |
[INFO] [stdout] 113 |         -> Result<(RootEntry, u16), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 -         -> Result<(RootEntry, u16), Box<error::Error>>
[INFO] [stdout] 113 +         -> Result<(RootEntry, u16), Box<dyn error::Error>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |         -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 127 -         -> Result<(), Box<error::Error>>
[INFO] [stdout] 127 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |         -> Box<Iterator<Item=(usize, u16)> + 'a>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 140 -         -> Box<Iterator<Item=(usize, u16)> + 'a>
[INFO] [stdout] 140 +         -> Box<dyn Iterator<Item=(usize, u16)> + 'a>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |         -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 178 -         -> Result<(), Box<error::Error>>
[INFO] [stdout] 178 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/root_entry.rs:40:50
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[INFO] [stdout] 40 +     pub fn filename(&self) -> Result<String, Box<dyn error::Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/root_entry.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 |         -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 -         -> Result<(), Box<error::Error>>
[INFO] [stdout] 56 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fat/image.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let mut target_slice = &mut self.data_area[
[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] [stdout] warning: field is never read: `reserved`
[INFO] [stdout]   --> src/fat/root_entry.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     reserved: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `RootEntry` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/fat/root_entry.rs:5:10
[INFO] [stdout]    |
[INFO] [stdout] 5  | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "085453903c850e2516318891794943736ba90e8680583d8e74df76d95fa48c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "085453903c850e2516318891794943736ba90e8680583d8e74df76d95fa48c18", kill_on_drop: false }`
[INFO] [stdout] 085453903c850e2516318891794943736ba90e8680583d8e74df76d95fa48c18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec197007cae25bafa957a983293850946e0f3737622c2887f4438bed7d096f90
[INFO] running `Command { std: "docker" "start" "-a" "ec197007cae25bafa957a983293850946e0f3737622c2887f4438bed7d096f90", kill_on_drop: false }`
[INFO] [stderr]    Compiling fatr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/commands/add.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     expect_args!(args, 2);
[INFO] [stdout]    |     --------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/commands/add.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |         return Err(errorf!("file {} already exists", file_name));
[INFO] [stdout]    |                    -------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/commands/add.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         try!(image.write_data_sector(entry_index, &chunk));
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |         ));
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/commands/detail.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     expect_args!(args, 2);
[INFO] [stdout]   |     --------------------- in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 |         ));
[INFO] [stdout]   |           ^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/commands/list.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     expect_args!(args, 1);
[INFO] [stdout]   |     --------------------- in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         try!(file.read_exact(&mut image.boot_sector));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         try!(file.read_exact(&mut image.fat_1));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         try!(file.read_exact(&mut image.fat_2));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         try!(file.read_exact(&mut image.root_dir));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         try!(file.read_exact(&mut image.data_area));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         try!(file.write_all(&self.boot_sector));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         try!(file.write_all(&self.fat_1));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         try!(file.write_all(&self.fat_2));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         try!(file.write_all(&self.root_dir));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/fat/image.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         try!(file.write_all(&self.data_area));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/fat/image.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             try!(entry.set_filename(filename));
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/utils.rs:6:11
[INFO] [stdout]     |
[INFO] [stdout] 6   |         ));
[INFO] [stdout]     |           ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/fat/image.rs:182:24
[INFO] [stdout]     |
[INFO] [stdout] 182 |             return Err(errorf!("sector {} too high to write to", sector));
[INFO] [stdout]     |                        ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/fat/root_entry.rs:60:24
[INFO] [stdout]    |
[INFO] [stdout] 60 |             return Err(errorf!("bad filename: \"{}\"", filename));
[INFO] [stdout]    |                        ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> src/utils.rs:6:11
[INFO] [stdout]    |
[INFO] [stdout] 6  |         ));
[INFO] [stdout]    |           ^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/main.rs:28:15
[INFO] [stdout]    |
[INFO] [stdout] 28 |         error(errorf!("command \"{}\" not recognized", command));
[INFO] [stdout]    |               ------------------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `errorf` (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/main.rs:42:19
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn error(err: Box<error::Error>) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 - fn error(err: Box<error::Error>) {
[INFO] [stdout] 42 + fn error(err: Box<dyn error::Error>) {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands/mod.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 11 - type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[INFO] [stdout] 11 + type Command = fn (&[String]) -> Result<(), Box<dyn error::Error>>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/commands/add.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 |     -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 10 -     -> Result<(), Box<error::Error>>
[INFO] [stdout] 10 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/commands/detail.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     -> Result<(), Box<error::Error>>
[INFO] [stdout] 6 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/commands/list.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 6 -     -> Result<(), Box<error::Error>>
[INFO] [stdout] 6 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/image.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 48 |         -> Result<Image, Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 -         -> Result<Image, Box<error::Error>>
[INFO] [stdout] 48 +         -> Result<Image, Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/image.rs:94:34
[INFO] [stdout]    |
[INFO] [stdout] 94 |         -> Result<RootEntry, Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 94 -         -> Result<RootEntry, Box<error::Error>>
[INFO] [stdout] 94 +         -> Result<RootEntry, Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:113:41
[INFO] [stdout]     |
[INFO] [stdout] 113 |         -> Result<(RootEntry, u16), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 -         -> Result<(RootEntry, u16), Box<error::Error>>
[INFO] [stdout] 113 +         -> Result<(RootEntry, u16), Box<dyn error::Error>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:127:27
[INFO] [stdout]     |
[INFO] [stdout] 127 |         -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 127 -         -> Result<(), Box<error::Error>>
[INFO] [stdout] 127 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:140:16
[INFO] [stdout]     |
[INFO] [stdout] 140 |         -> Box<Iterator<Item=(usize, u16)> + 'a>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 140 -         -> Box<Iterator<Item=(usize, u16)> + 'a>
[INFO] [stdout] 140 +         -> Box<dyn Iterator<Item=(usize, u16)> + 'a>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/fat/image.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |         -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 178 -         -> Result<(), Box<error::Error>>
[INFO] [stdout] 178 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/root_entry.rs:40:50
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 40 -     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[INFO] [stdout] 40 +     pub fn filename(&self) -> Result<String, Box<dyn error::Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/fat/root_entry.rs:56:27
[INFO] [stdout]    |
[INFO] [stdout] 56 |         -> Result<(), Box<error::Error>>
[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: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 56 -         -> Result<(), Box<error::Error>>
[INFO] [stdout] 56 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fat/image.rs:185:13
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let mut target_slice = &mut self.data_area[
[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] [stdout] warning: field is never read: `reserved`
[INFO] [stdout]   --> src/fat/root_entry.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     reserved: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `RootEntry` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/fat/root_entry.rs:5:10
[INFO] [stdout]    |
[INFO] [stdout] 5  | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 34 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "ec197007cae25bafa957a983293850946e0f3737622c2887f4438bed7d096f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec197007cae25bafa957a983293850946e0f3737622c2887f4438bed7d096f90", kill_on_drop: false }`
[INFO] [stdout] ec197007cae25bafa957a983293850946e0f3737622c2887f4438bed7d096f90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 376dfc8d002dcb40234ffc260d317e6646f5442bd985fc1ec3405c6918f1c4d5
[INFO] running `Command { std: "docker" "start" "-a" "376dfc8d002dcb40234ffc260d317e6646f5442bd985fc1ec3405c6918f1c4d5", kill_on_drop: false }`
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]   --> src/utils.rs:6:11
[INFO] [stderr]    |
[INFO] [stderr] 6  |         ));
[INFO] [stderr]    |           ^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/commands/add.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     expect_args!(args, 2);
[INFO] [stderr]    |     --------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]   --> src/utils.rs:6:11
[INFO] [stderr]    |
[INFO] [stderr] 6  |         ));
[INFO] [stderr]    |           ^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/commands/add.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |         return Err(errorf!("file {} already exists", file_name));
[INFO] [stderr]    |                    -------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/commands/add.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |         try!(image.write_data_sector(entry_index, &chunk));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]  --> src/utils.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 |         ));
[INFO] [stderr]   |           ^
[INFO] [stderr]   |
[INFO] [stderr]  ::: src/commands/detail.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     expect_args!(args, 2);
[INFO] [stderr]   |     --------------------- in this macro invocation
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]   = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]  --> src/utils.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 |         ));
[INFO] [stderr]   |           ^
[INFO] [stderr]   |
[INFO] [stderr]  ::: src/commands/list.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     expect_args!(args, 1);
[INFO] [stderr]   |     --------------------- in this macro invocation
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]   = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:53:9
[INFO] [stderr]    |
[INFO] [stderr] 53 |         try!(file.read_exact(&mut image.boot_sector));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |         try!(file.read_exact(&mut image.fat_1));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         try!(file.read_exact(&mut image.fat_2));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         try!(file.read_exact(&mut image.root_dir));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:57:9
[INFO] [stderr]    |
[INFO] [stderr] 57 |         try!(file.read_exact(&mut image.data_area));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:67:9
[INFO] [stderr]    |
[INFO] [stderr] 67 |         try!(file.write_all(&self.boot_sector));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:68:9
[INFO] [stderr]    |
[INFO] [stderr] 68 |         try!(file.write_all(&self.fat_1));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |         try!(file.write_all(&self.fat_2));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 |         try!(file.write_all(&self.root_dir));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/fat/image.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         try!(file.write_all(&self.data_area));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/fat/image.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             try!(entry.set_filename(filename));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]    --> src/utils.rs:6:11
[INFO] [stderr]     |
[INFO] [stderr] 6   |         ));
[INFO] [stderr]     |           ^
[INFO] [stderr]     |
[INFO] [stderr]    ::: src/fat/image.rs:182:24
[INFO] [stderr]     |
[INFO] [stderr] 182 |             return Err(errorf!("sector {} too high to write to", sector));
[INFO] [stderr]     |                        ------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]     = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]   --> src/utils.rs:6:11
[INFO] [stderr]    |
[INFO] [stderr] 6  |         ));
[INFO] [stderr]    |           ^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/fat/root_entry.rs:60:24
[INFO] [stderr]    |
[INFO] [stderr] 60 |             return Err(errorf!("bad filename: \"{}\"", filename));
[INFO] [stderr]    |                        ----------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trailing semicolon in macro used in expression position
[INFO] [stderr]   --> src/utils.rs:6:11
[INFO] [stderr]    |
[INFO] [stderr] 6  |         ));
[INFO] [stderr]    |           ^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/main.rs:28:15
[INFO] [stderr]    |
[INFO] [stderr] 28 |         error(errorf!("command \"{}\" not recognized", command));
[INFO] [stderr]    |               ------------------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stderr]    = note: this warning originates in the macro `errorf` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:42:19
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn error(err: Box<error::Error>) {
[INFO] [stderr]    |                   ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 42 - fn error(err: Box<error::Error>) {
[INFO] [stderr] 42 + fn error(err: Box<dyn error::Error>) {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands/mod.rs:11:49
[INFO] [stderr]    |
[INFO] [stderr] 11 | type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[INFO] [stderr]    |                                                 ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 11 - type Command = fn (&[String]) -> Result<(), Box<error::Error>>;
[INFO] [stderr] 11 + type Command = fn (&[String]) -> Result<(), Box<dyn error::Error>>;
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/commands/add.rs:10:23
[INFO] [stderr]    |
[INFO] [stderr] 10 |     -> Result<(), Box<error::Error>>
[INFO] [stderr]    |                       ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 10 -     -> Result<(), Box<error::Error>>
[INFO] [stderr] 10 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/commands/detail.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 |     -> Result<(), Box<error::Error>>
[INFO] [stderr]   |                       ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 6 -     -> Result<(), Box<error::Error>>
[INFO] [stderr] 6 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/commands/list.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 |     -> Result<(), Box<error::Error>>
[INFO] [stderr]   |                       ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 6 -     -> Result<(), Box<error::Error>>
[INFO] [stderr] 6 +     -> Result<(), Box<dyn error::Error>>
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fat/image.rs:48:30
[INFO] [stderr]    |
[INFO] [stderr] 48 |         -> Result<Image, Box<error::Error>>
[INFO] [stderr]    |                              ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 48 -         -> Result<Image, Box<error::Error>>
[INFO] [stderr] 48 +         -> Result<Image, Box<dyn error::Error>>
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fat/image.rs:94:34
[INFO] [stderr]    |
[INFO] [stderr] 94 |         -> Result<RootEntry, Box<error::Error>>
[INFO] [stderr]    |                                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 94 -         -> Result<RootEntry, Box<error::Error>>
[INFO] [stderr] 94 +         -> Result<RootEntry, Box<dyn error::Error>>
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fat/image.rs:113:41
[INFO] [stderr]     |
[INFO] [stderr] 113 |         -> Result<(RootEntry, u16), Box<error::Error>>
[INFO] [stderr]     |                                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 113 -         -> Result<(RootEntry, u16), Box<error::Error>>
[INFO] [stderr] 113 +         -> Result<(RootEntry, u16), Box<dyn error::Error>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fat/image.rs:127:27
[INFO] [stderr]     |
[INFO] [stderr] 127 |         -> Result<(), Box<error::Error>>
[INFO] [stderr]     |                           ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 127 -         -> Result<(), Box<error::Error>>
[INFO] [stderr] 127 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fat/image.rs:140:16
[INFO] [stderr]     |
[INFO] [stderr] 140 |         -> Box<Iterator<Item=(usize, u16)> + 'a>
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 140 -         -> Box<Iterator<Item=(usize, u16)> + 'a>
[INFO] [stderr] 140 +         -> Box<dyn Iterator<Item=(usize, u16)> + 'a>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fat/image.rs:178:27
[INFO] [stderr]     |
[INFO] [stderr] 178 |         -> Result<(), Box<error::Error>>
[INFO] [stderr]     |                           ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 178 -         -> Result<(), Box<error::Error>>
[INFO] [stderr] 178 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fat/root_entry.rs:40:50
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 40 -     pub fn filename(&self) -> Result<String, Box<error::Error>> {
[INFO] [stderr] 40 +     pub fn filename(&self) -> Result<String, Box<dyn error::Error>> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/fat/root_entry.rs:56:27
[INFO] [stderr]    |
[INFO] [stderr] 56 |         -> Result<(), Box<error::Error>>
[INFO] [stderr]    |                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 56 -         -> Result<(), Box<error::Error>>
[INFO] [stderr] 56 +         -> Result<(), Box<dyn error::Error>>
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/fat/image.rs:185:13
[INFO] [stderr]     |
[INFO] [stderr] 185 |         let mut target_slice = &mut self.data_area[
[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: field is never read: `reserved`
[INFO] [stderr]   --> src/fat/root_entry.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     reserved: u16,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `RootEntry` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/fat/root_entry.rs:5:10
[INFO] [stderr]    |
[INFO] [stderr] 5  | #[derive(Clone)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `fatr` (bin "fatr" test) generated 34 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fatr-f26ecff0ea67cc26)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test fat::image::test_root_entry_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "376dfc8d002dcb40234ffc260d317e6646f5442bd985fc1ec3405c6918f1c4d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "376dfc8d002dcb40234ffc260d317e6646f5442bd985fc1ec3405c6918f1c4d5", kill_on_drop: false }`
[INFO] [stdout] 376dfc8d002dcb40234ffc260d317e6646f5442bd985fc1ec3405c6918f1c4d5