[INFO] cloning repository https://github.com/BlaiseBaptist/monster_battle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BlaiseBaptist/monster_battle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlaiseBaptist%2Fmonster_battle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlaiseBaptist%2Fmonster_battle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 886d3025144ef07e4094285a12eba66fcc9b9926
[INFO] checking BlaiseBaptist/monster_battle against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlaiseBaptist%2Fmonster_battle" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BlaiseBaptist/monster_battle on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BlaiseBaptist/monster_battle
[INFO] finished tweaking git repo https://github.com/BlaiseBaptist/monster_battle
[INFO] tweaked toml for git repo https://github.com/BlaiseBaptist/monster_battle written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/BlaiseBaptist/monster_battle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b0b28dc2d2d7e66d183049d2d498fb13e5363a52bdc797165024edff9d42ccb
[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" "5b0b28dc2d2d7e66d183049d2d498fb13e5363a52bdc797165024edff9d42ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0b28dc2d2d7e66d183049d2d498fb13e5363a52bdc797165024edff9d42ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0b28dc2d2d7e66d183049d2d498fb13e5363a52bdc797165024edff9d42ccb", kill_on_drop: false }`
[INFO] [stdout] 5b0b28dc2d2d7e66d183049d2d498fb13e5363a52bdc797165024edff9d42ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c237cdaae1f0aed8d4d8a0ae589afda747fd9387594032e722a87b60f8581b2c
[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" "c237cdaae1f0aed8d4d8a0ae589afda747fd9387594032e722a87b60f8581b2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking pad v0.1.5
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking monster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn attack(&self, other: &mut Monster, round: i32) {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn Monster`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     monsters: Vec<Box<Monster>>,
[INFO] [stdout]    |                       ^^^^^^^ help: use `dyn`: `dyn Monster`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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.rs:111:34
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn attack(&self, other: &mut Monster, round: i32) {
[INFO] [stdout]     |                                  ^^^^^^^ help: use `dyn`: `dyn Monster`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: unnecessary parentheses around type
[INFO] [stdout]    --> src/server.rs:231:16
[INFO] [stdout]     |
[INFO] [stdout] 231 | fn set_up() -> (Team) {
[INFO] [stdout]     |                ^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/server.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 238 |     (team)
[INFO] [stdout]     |     ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/server.rs:20:34
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn attack(&self, other: &mut Monster, round: i32) {
[INFO] [stdout]    |                                  ^^^^^^^ help: use `dyn`: `dyn Monster`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     monsters: Vec<Box<Monster>>,
[INFO] [stdout]    |                       ^^^^^^^ help: use `dyn`: `dyn Monster`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) 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.rs:111:34
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn attack(&self, other: &mut Monster, round: i32) {
[INFO] [stdout]     |                                  ^^^^^^^ help: use `dyn`: `dyn Monster`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) 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: unnecessary parentheses around type
[INFO] [stdout]    --> src/server.rs:231:16
[INFO] [stdout]     |
[INFO] [stdout] 231 | fn set_up() -> (Team) {
[INFO] [stdout]     |                ^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/server.rs:238:5
[INFO] [stdout]     |
[INFO] [stdout] 238 |     (team)
[INFO] [stdout]     |     ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stars`
[INFO] [stdout]   --> src/server.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     stars: i32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `money`
[INFO] [stdout]   --> src/server.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     money: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/server.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `level`
[INFO] [stdout]   --> src/server.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     level: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/server.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     id: u128,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `star_check`
[INFO] [stdout]   --> src/server.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn star_check(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `stars`
[INFO] [stdout]   --> src/server.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     stars: i32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `money`
[INFO] [stdout]   --> src/server.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     money: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> src/server.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `level`
[INFO] [stdout]   --> src/server.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     level: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> src/server.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 |     id: u128,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `star_check`
[INFO] [stdout]   --> src/server.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 |     fn star_check(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.44s
[INFO] running `Command { std: "docker" "inspect" "c237cdaae1f0aed8d4d8a0ae589afda747fd9387594032e722a87b60f8581b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c237cdaae1f0aed8d4d8a0ae589afda747fd9387594032e722a87b60f8581b2c", kill_on_drop: false }`
[INFO] [stdout] c237cdaae1f0aed8d4d8a0ae589afda747fd9387594032e722a87b60f8581b2c