[INFO] crate victorem 0.8.2 is already in cache
[INFO] checking victorem-0.8.2 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate victorem 0.8.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate victorem 0.8.2 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate victorem 0.8.2
[INFO] finished tweaking crates.io crate victorem 0.8.2
[INFO] tweaked toml for crates.io crate victorem 0.8.2 written to /workspace/builds/worker-0/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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db1d9597c6707838ffb9bed2b348aca8bbf9d1b22a4dedf8dc07f2fc3151c7b6
[INFO] running `"docker" "start" "-a" "db1d9597c6707838ffb9bed2b348aca8bbf9d1b22a4dedf8dc07f2fc3151c7b6"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking victorem v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/business_logic_layer/key.rs:59:36
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn is_valid(&self, value: &IWithKey) -> bool {
[INFO] [stderr]    |                                    ^^^^^^^^ help: use `dyn`: `dyn IWithKey`
[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/business_logic_layer/key.rs:59:36
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn is_valid(&self, value: &IWithKey) -> bool {
[INFO] [stderr]    |                                    ^^^^^^^^ help: use `dyn`: `dyn IWithKey`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command2`
[INFO] [stderr]    --> src/business_logic_layer/mod.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let command2 = client.send(vec![2]);
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command2`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/business_logic_layer/mod.rs:204:14
[INFO] [stderr]     |
[INFO] [stderr] 204 |         let (b, commands) = client.recv(state1).unwrap();
[INFO] [stderr]     |              ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `command2`
[INFO] [stderr]    --> src/business_logic_layer/mod.rs:220:13
[INFO] [stderr]     |
[INFO] [stderr] 220 |         let command2 = client.send(vec![2]);
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r1`
[INFO] [stderr]    --> src/business_logic_layer/mod.rs:221:13
[INFO] [stderr]     |
[INFO] [stderr] 221 |         let r1 = server.recv(command1);
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/test.rs:184:53
[INFO] [stderr]     |
[INFO] [stderr] 184 |     fn execute(&mut self, data: T) -> Result<T, Box<Error>>;
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[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]    --> tests/test.rs:186:49
[INFO] [stderr]     |
[INFO] [stderr] 186 |     fn run(&mut self, data: T) -> Result<T, Box<Error>> {
[INFO] [stderr]     |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/test.rs:218:22
[INFO] [stderr]     |
[INFO] [stderr] 218 |     next: Option<Box<Middleware<i32>>>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Middleware<i32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/test.rs:222:57
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn execute(&mut self, data: i32) -> Result<i32, Box<Error>> {
[INFO] [stderr]     |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/test.rs:226:43
[INFO] [stderr]     |
[INFO] [stderr] 226 |     fn next(&mut self) -> &mut Option<Box<Middleware<i32>>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Middleware<i32>`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `compose`
[INFO] [stderr]    --> tests/test.rs:195:4
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn compose<T: From<U>, U>(
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `curry`
[INFO] [stderr]    --> tests/test.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn curry<T, U, Z>(x: T, f: impl FnOnce(T, U) -> Z) -> impl FnOnce(U) -> Z {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add`
[INFO] [stderr]    --> tests/test.rs:206:4
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn add(x: i32, y: i32) -> i32 {
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `add_static`
[INFO] [stderr]    --> tests/test.rs:210:4
[INFO] [stderr]     |
[INFO] [stderr] 210 | fn add_static(mut x: i32) -> impl FnMut(i32) -> i32 {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> tests/test.rs:101:5
[INFO] [stderr]     |
[INFO] [stderr] 101 |     client.send(vec![1u8]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> tests/test.rs:102:5
[INFO] [stderr]     |
[INFO] [stderr] 102 |     client.send(vec![1u8]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> tests/test.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     client.send(vec![1u8]);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 12 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.99s
[INFO] running `"docker" "inspect" "db1d9597c6707838ffb9bed2b348aca8bbf9d1b22a4dedf8dc07f2fc3151c7b6"`
[INFO] running `"docker" "rm" "-f" "db1d9597c6707838ffb9bed2b348aca8bbf9d1b22a4dedf8dc07f2fc3151c7b6"`
[INFO] [stdout] db1d9597c6707838ffb9bed2b348aca8bbf9d1b22a4dedf8dc07f2fc3151c7b6