[INFO] cloning repository https://github.com/Cancain/rust_arena [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cancain/rust_arena" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCancain%2Frust_arena", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCancain%2Frust_arena'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 139f1603368b07ced0078101143c2aafa2854a6a [INFO] checking Cancain/rust_arena against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCancain%2Frust_arena" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Cancain/rust_arena on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Cancain/rust_arena [INFO] finished tweaking git repo https://github.com/Cancain/rust_arena [INFO] tweaked toml for git repo https://github.com/Cancain/rust_arena written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/Cancain/rust_arena already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c68206b2e4dff8d969a72034d6c47f1cb3a2a2502425539330b7f1750810d17c [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" "c68206b2e4dff8d969a72034d6c47f1cb3a2a2502425539330b7f1750810d17c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c68206b2e4dff8d969a72034d6c47f1cb3a2a2502425539330b7f1750810d17c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c68206b2e4dff8d969a72034d6c47f1cb3a2a2502425539330b7f1750810d17c", kill_on_drop: false }` [INFO] [stdout] c68206b2e4dff8d969a72034d6c47f1cb3a2a2502425539330b7f1750810d17c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e2097d47a360d5d4a52fbc3ba7e46466500b0f035d88fa931feaf1f5d81a011f [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" "e2097d47a360d5d4a52fbc3ba7e46466500b0f035d88fa931feaf1f5d81a011f", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Compiling rand_chacha v0.2.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking rust_arena v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `game_on` is never read [INFO] [stdout] --> src/characters.rs:34:29 [INFO] [stdout] | [INFO] [stdout] 34 | "e" | "exit" => game_on = false, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `game_on` is assigned to, but never used [INFO] [stdout] --> src/characters.rs:20:35 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn start_new_player_character(game_on: bool) -> Character { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_game_on` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut game_on = true; [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] error[E0384]: cannot assign to immutable argument `game_on` [INFO] [stdout] --> src/characters.rs:34:29 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn start_new_player_character(game_on: bool) -> Character { [INFO] [stdout] | ------- help: make this binding mutable: `mut game_on` [INFO] [stdout] ... [INFO] [stdout] 34 | "e" | "exit" => game_on = false, [INFO] [stdout] | ^^^^^^^^^^^^^^^ cannot assign to immutable argument [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `game_on` is never read [INFO] [stdout] --> src/characters.rs:34:29 [INFO] [stdout] | [INFO] [stdout] 34 | "e" | "exit" => game_on = false, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `game_on` is assigned to, but never used [INFO] [stdout] --> src/characters.rs:20:35 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn start_new_player_character(game_on: bool) -> Character { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] = note: consider using `_game_on` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0384`. [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let mut game_on = true; [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] [stderr] error: could not compile `rust_arena` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0384]: cannot assign to immutable argument `game_on` [INFO] [stdout] --> src/characters.rs:34:29 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn start_new_player_character(game_on: bool) -> Character { [INFO] [stdout] | ------- help: make this binding mutable: `mut game_on` [INFO] [stdout] ... [INFO] [stdout] 34 | "e" | "exit" => game_on = false, [INFO] [stdout] | ^^^^^^^^^^^^^^^ cannot assign to immutable argument [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0384`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "e2097d47a360d5d4a52fbc3ba7e46466500b0f035d88fa931feaf1f5d81a011f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2097d47a360d5d4a52fbc3ba7e46466500b0f035d88fa931feaf1f5d81a011f", kill_on_drop: false }` [INFO] [stdout] e2097d47a360d5d4a52fbc3ba7e46466500b0f035d88fa931feaf1f5d81a011f