[INFO] fetching crate flep 0.2.0...
[INFO] testing flep-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate flep 0.2.0 into /workspace/builds/worker-116/source
[INFO] validating manifest of crates.io crate flep 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flep 0.2.0
[INFO] finished tweaking crates.io crate flep 0.2.0
[INFO] tweaked toml for crates.io crate flep 0.2.0 written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.5.1
[INFO] [stderr]   Downloaded flep_protocol v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acf66ba2cd586451efe581168c3a6a6c483144aac246e281316f9fe843784021
[INFO] running `Command { std: "docker" "start" "-a" "acf66ba2cd586451efe581168c3a6a6c483144aac246e281316f9fe843784021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acf66ba2cd586451efe581168c3a6a6c483144aac246e281316f9fe843784021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acf66ba2cd586451efe581168c3a6a6c483144aac246e281316f9fe843784021", kill_on_drop: false }`
[INFO] [stdout] acf66ba2cd586451efe581168c3a6a6c483144aac246e281316f9fe843784021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7b3d47e04a71e0a94df32678bcc620d7ae9ac446acf443b83cea6ca9f358d46
[INFO] running `Command { std: "docker" "start" "-a" "b7b3d47e04a71e0a94df32678bcc620d7ae9ac446acf443b83cea6ca9f358d46", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling rfc1700 v0.1.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling itertools v0.6.5
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling flep_protocol v0.2.0
[INFO] [stderr]    Compiling flep v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/server.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn file_system(&self) -> &FileSystem;
[INFO] [stdout]    |                               ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/server.rs:16:43
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn file_system_mut(&mut self) -> &mut FileSystem;
[INFO] [stdout]    |                                           ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client.rs:32:41
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   server: &mut Server,
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/user.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/pass.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/server/client/state/handle/list.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |               server: &mut Server)
[INFO] [stdout]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/server/client/state/handle/retr.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |               server: &mut Server)
[INFO] [stdout]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/mkd.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/mod.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |                server: &mut Server) -> Result<Action, Error> {
[INFO] [stdout]    |                             ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/mod.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |                       server: &mut Server)
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/mod.rs:45:34
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     server: &mut Server,
[INFO] [stdout]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client_io.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     server: &mut Server,
[INFO] [stdout]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client_io.rs:35:39
[INFO] [stdout]    |
[INFO] [stdout] 35 |                          server: &mut Server)
[INFO] [stdout]    |                                       ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     types {
[INFO] [stdout] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stdout] 6  | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     types {
[INFO] [stdout] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stdout] 6  | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server/run.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         let mut client_data = client.get_mut();
[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: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.89s
[INFO] running `Command { std: "docker" "inspect" "b7b3d47e04a71e0a94df32678bcc620d7ae9ac446acf443b83cea6ca9f358d46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b3d47e04a71e0a94df32678bcc620d7ae9ac446acf443b83cea6ca9f358d46", kill_on_drop: false }`
[INFO] [stdout] b7b3d47e04a71e0a94df32678bcc620d7ae9ac446acf443b83cea6ca9f358d46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8246b26355c8f72c6d20e6a0ebd958116744eee5f3233bb46c5b49a651323eff
[INFO] running `Command { std: "docker" "start" "-a" "8246b26355c8f72c6d20e6a0ebd958116744eee5f3233bb46c5b49a651323eff", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/server.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn file_system(&self) -> &FileSystem;
[INFO] [stdout]    |                               ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/server.rs:16:43
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn file_system_mut(&mut self) -> &mut FileSystem;
[INFO] [stdout]    |                                           ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client.rs:32:41
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   server: &mut Server,
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/user.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/pass.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/server/client/state/handle/list.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |               server: &mut Server)
[INFO] [stdout]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/server/client/state/handle/retr.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |               server: &mut Server)
[INFO] [stdout]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/mkd.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/mod.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |                server: &mut Server) -> Result<Action, Error> {
[INFO] [stdout]    |                             ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/mod.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |                       server: &mut Server)
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/mod.rs:45:34
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     server: &mut Server,
[INFO] [stdout]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client_io.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     server: &mut Server,
[INFO] [stdout]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client_io.rs:35:39
[INFO] [stdout]    |
[INFO] [stdout] 35 |                          server: &mut Server)
[INFO] [stdout]    |                                       ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     types {
[INFO] [stdout] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stdout] 6  | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling flep v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     types {
[INFO] [stdout] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stdout] 6  | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server/run.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         let mut client_data = client.get_mut();
[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: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/basic_server.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn file_system(&self) -> &flep::fs::FileSystem {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn flep::fs::FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/basic_server.rs:19:43
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn file_system_mut(&mut self) -> &mut flep::fs::FileSystem {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn flep::fs::FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/server.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn file_system(&self) -> &FileSystem;
[INFO] [stdout]    |                               ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/server.rs:16:43
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn file_system_mut(&mut self) -> &mut FileSystem;
[INFO] [stdout]    |                                           ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client.rs:32:41
[INFO] [stdout]    |
[INFO] [stdout] 32 | ...                   server: &mut Server,
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/user.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/pass.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/server/client/state/handle/list.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 |               server: &mut Server)
[INFO] [stdout]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/server/client/state/handle/retr.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 |               server: &mut Server)
[INFO] [stdout]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/mkd.rs:10:28
[INFO] [stdout]    |
[INFO] [stdout] 10 |               server: &mut Server)
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/handle/mod.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |                server: &mut Server) -> Result<Action, Error> {
[INFO] [stdout]    |                             ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/mod.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |                       server: &mut Server)
[INFO] [stdout]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/state/mod.rs:45:34
[INFO] [stdout]    |
[INFO] [stdout] 45 |                     server: &mut Server,
[INFO] [stdout]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client_io.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 |                     server: &mut Server,
[INFO] [stdout]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server/client/client_io.rs:35:39
[INFO] [stdout]    |
[INFO] [stdout] 35 |                          server: &mut Server)
[INFO] [stdout]    |                                       ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     types {
[INFO] [stdout] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stdout] 6  | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> src/errors.rs:3:1
[INFO] [stdout]    |
[INFO] [stdout] 3  | / error_chain! {
[INFO] [stdout] 4  | |     types {
[INFO] [stdout] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stdout] 6  | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | |     }
[INFO] [stdout] 15 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server/run.rs:106:29
[INFO] [stdout]     |
[INFO] [stdout] 106 |                         let mut client_data = client.get_mut();
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.26s
[INFO] running `Command { std: "docker" "inspect" "8246b26355c8f72c6d20e6a0ebd958116744eee5f3233bb46c5b49a651323eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8246b26355c8f72c6d20e6a0ebd958116744eee5f3233bb46c5b49a651323eff", kill_on_drop: false }`
[INFO] [stdout] 8246b26355c8f72c6d20e6a0ebd958116744eee5f3233bb46c5b49a651323eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f6ba1523aea6e269da5f49ab4f10ed35a84253f3993e5940402593613eb23d00
[INFO] running `Command { std: "docker" "start" "-a" "f6ba1523aea6e269da5f49ab4f10ed35a84253f3993e5940402593613eb23d00", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/server.rs:15:31
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn file_system(&self) -> &FileSystem;
[INFO] [stderr]    |                               ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/server.rs:16:43
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn file_system_mut(&mut self) -> &mut FileSystem;
[INFO] [stderr]    |                                           ^^^^^^^^^^ help: use `dyn`: `dyn FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/client.rs:32:41
[INFO] [stderr]    |
[INFO] [stderr] 32 | ...                   server: &mut Server,
[INFO] [stderr]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/state/handle/user.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |               server: &mut Server)
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/state/handle/pass.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |               server: &mut Server)
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/server/client/state/handle/list.rs:8:28
[INFO] [stderr]   |
[INFO] [stderr] 8 |               server: &mut Server)
[INFO] [stderr]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/server/client/state/handle/retr.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 |               server: &mut Server)
[INFO] [stderr]   |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/state/handle/mkd.rs:10:28
[INFO] [stderr]    |
[INFO] [stderr] 10 |               server: &mut Server)
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/state/handle/mod.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |                server: &mut Server) -> Result<Action, Error> {
[INFO] [stderr]    |                             ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/state/mod.rs:38:36
[INFO] [stderr]    |
[INFO] [stderr] 38 |                       server: &mut Server)
[INFO] [stderr]    |                                    ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/state/mod.rs:45:34
[INFO] [stderr]    |
[INFO] [stderr] 45 |                     server: &mut Server,
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/client_io.rs:20:34
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     server: &mut Server,
[INFO] [stderr]    |                                  ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/server/client/client_io.rs:35:39
[INFO] [stderr]    |
[INFO] [stderr] 35 |                          server: &mut Server)
[INFO] [stderr]    |                                       ^^^^^^ help: use `dyn`: `dyn Server`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/errors.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain! {
[INFO] [stderr] 4  | |     types {
[INFO] [stderr] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stderr] 6  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:3:1
[INFO] [stderr]    |
[INFO] [stderr] 3  | / error_chain! {
[INFO] [stderr] 4  | |     types {
[INFO] [stderr] 5  | |         Error, ErrorKind, ResultExt;
[INFO] [stderr] 6  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 14 | |     }
[INFO] [stderr] 15 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/server/run.rs:106:29
[INFO] [stderr]     |
[INFO] [stderr] 106 |                         let mut client_data = client.get_mut();
[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: `flep` (lib) generated 16 warnings
[INFO] [stderr] warning: `flep` (lib test) generated 16 warnings (16 duplicates)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/basic_server.rs:15:31
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn file_system(&self) -> &flep::fs::FileSystem {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn flep::fs::FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> examples/basic_server.rs:19:43
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn file_system_mut(&mut self) -> &mut flep::fs::FileSystem {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn flep::fs::FileSystem`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `flep` (example "basic_server") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flep-727a9b14c25edea5)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test fs::memory::test::find_node::correctly_finds_empty_string_as_root ... ok
[INFO] [stdout] test fs::memory::test::create_dir::correctly_creates_a_top_level_dir ... ok
[INFO] [stdout] test fs::memory::test::find_node::correctly_finds_empty_root ... ok
[INFO] [stdout] test fs::memory::test::find_node::correctly_finds_nested_file ... ok
[INFO] [stdout] test fs::memory::test::find_node::correctly_finds_top_level_directory ... ok
[INFO] [stdout] test fs::memory::test::find_node::correctly_finds_top_level_file ... ok
[INFO] [stdout] test fs::memory::test::read_file::correctly_reads_a_top_level_file ... ok
[INFO] [stdout] test fs::memory::test::write_file::correctly_creates_a_top_level_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flep
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f6ba1523aea6e269da5f49ab4f10ed35a84253f3993e5940402593613eb23d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ba1523aea6e269da5f49ab4f10ed35a84253f3993e5940402593613eb23d00", kill_on_drop: false }`
[INFO] [stdout] f6ba1523aea6e269da5f49ab4f10ed35a84253f3993e5940402593613eb23d00