[INFO] fetching crate victorem 0.8.2...
[INFO] checking victorem-0.8.2 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate victorem 0.8.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate victorem 0.8.2 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd32ff0237f57cb60dfee6e92d8956a22a1534aad64c1753b226cebaca3efcb2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bd32ff0237f57cb60dfee6e92d8956a22a1534aad64c1753b226cebaca3efcb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd32ff0237f57cb60dfee6e92d8956a22a1534aad64c1753b226cebaca3efcb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd32ff0237f57cb60dfee6e92d8956a22a1534aad64c1753b226cebaca3efcb2", kill_on_drop: false }`
[INFO] [stdout] bd32ff0237f57cb60dfee6e92d8956a22a1534aad64c1753b226cebaca3efcb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd30bf114462a9f95503cca6fde5f85de4980c36d76d558df657bc7c77999846
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cd30bf114462a9f95503cca6fde5f85de4980c36d76d558df657bc7c77999846", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking victorem v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/business_logic_layer/key.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn is_valid(&self, value: &IWithKey) -> bool {
[INFO] [stdout]    |                                    ^^^^^^^^ help: use `dyn`: `dyn IWithKey`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/business_logic_layer/key.rs:59:36
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn is_valid(&self, value: &IWithKey) -> bool {
[INFO] [stdout]    |                                    ^^^^^^^^ help: use `dyn`: `dyn IWithKey`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command2`
[INFO] [stdout]    --> src/business_logic_layer/mod.rs:184:13
[INFO] [stdout]     |
[INFO] [stdout] 184 |         let command2 = client.send(vec![2]);
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/business_logic_layer/mod.rs:204:14
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let (b, commands) = client.recv(state1).unwrap();
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command2`
[INFO] [stdout]    --> src/business_logic_layer/mod.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let command2 = client.send(vec![2]);
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r1`
[INFO] [stdout]    --> src/business_logic_layer/mod.rs:221:13
[INFO] [stdout]     |
[INFO] [stdout] 221 |         let r1 = server.recv(command1);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_r1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/test.rs:184:53
[INFO] [stdout]     |
[INFO] [stdout] 184 |     fn execute(&mut self, data: T) -> Result<T, Box<Error>>;
[INFO] [stdout]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/test.rs:186:49
[INFO] [stdout]     |
[INFO] [stdout] 186 |     fn run(&mut self, data: T) -> Result<T, Box<Error>> {
[INFO] [stdout]     |                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/test.rs:218:22
[INFO] [stdout]     |
[INFO] [stdout] 218 |     next: Option<Box<Middleware<i32>>>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Middleware<i32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/test.rs:222:57
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn execute(&mut self, data: i32) -> Result<i32, Box<Error>> {
[INFO] [stdout]     |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/test.rs:226:43
[INFO] [stdout]     |
[INFO] [stdout] 226 |     fn next(&mut self) -> &mut Option<Box<Middleware<i32>>> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Middleware<i32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `compose`
[INFO] [stdout]    --> tests/test.rs:195:4
[INFO] [stdout]     |
[INFO] [stdout] 195 | fn compose<T: From<U>, U>(
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `curry`
[INFO] [stdout]    --> tests/test.rs:202:4
[INFO] [stdout]     |
[INFO] [stdout] 202 | fn curry<T, U, Z>(x: T, f: impl FnOnce(T, U) -> Z) -> impl FnOnce(U) -> Z {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]    --> tests/test.rs:206:4
[INFO] [stdout]     |
[INFO] [stdout] 206 | fn add(x: i32, y: i32) -> i32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_static`
[INFO] [stdout]    --> tests/test.rs:210:4
[INFO] [stdout]     |
[INFO] [stdout] 210 | fn add_static(mut x: i32) -> impl FnMut(i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> tests/test.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     client.send(vec![1u8]);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> tests/test.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     client.send(vec![1u8]);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> tests/test.rs:103:5
[INFO] [stdout]     |
[INFO] [stdout] 103 |     client.send(vec![1u8]);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `Command { std: "docker" "inspect" "cd30bf114462a9f95503cca6fde5f85de4980c36d76d558df657bc7c77999846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd30bf114462a9f95503cca6fde5f85de4980c36d76d558df657bc7c77999846", kill_on_drop: false }`
[INFO] [stdout] cd30bf114462a9f95503cca6fde5f85de4980c36d76d558df657bc7c77999846
