[INFO] crate flep 0.2.0 is already in cache
[INFO] checking flep-0.2.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate flep 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate flep 0.2.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 80bb86ba6f65523a5d11a659f30fb262f2acc1ad2c288c5ff5637a11e766d5bd
[INFO] running `"docker" "start" "-a" "80bb86ba6f65523a5d11a659f30fb262f2acc1ad2c288c5ff5637a11e766d5bd"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking rfc1700 v0.1.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking flep_protocol v0.2.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]     Checking flep v0.2.0 (/opt/rustwide/workdir)
[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] 
[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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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] 
[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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: use of deprecated item '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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::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 a macro (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: 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: 16 warnings emitted
[INFO] [stderr] 
[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] 
[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: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.56s
[INFO] running `"docker" "inspect" "80bb86ba6f65523a5d11a659f30fb262f2acc1ad2c288c5ff5637a11e766d5bd"`
[INFO] running `"docker" "rm" "-f" "80bb86ba6f65523a5d11a659f30fb262f2acc1ad2c288c5ff5637a11e766d5bd"`
[INFO] [stdout] 80bb86ba6f65523a5d11a659f30fb262f2acc1ad2c288c5ff5637a11e766d5bd