[INFO] updating cached repository https://github.com/royalmustard/battletest [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] [stderr] From https://github.com/royalmustard/battletest [INFO] [stderr] b4548cf..7e0047b master -> master [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7e0047bc924518fb7e502fe2dcbc4133231dc482 [INFO] checking royalmustard/battletest against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froyalmustard%2Fbattletest" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/royalmustard/battletest on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c [INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/royalmustard/battletest [INFO] finished tweaking git repo https://github.com/royalmustard/battletest [INFO] tweaked toml for git repo https://github.com/royalmustard/battletest written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/royalmustard/battletest already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] ca08176518f105adeb7b936ab17b1df54242bcaa691011cf52b3a3c5e6ab046e [INFO] running `"docker" "start" "-a" "ca08176518f105adeb7b936ab17b1df54242bcaa691011cf52b3a3c5e6ab046e"` [INFO] [stderr] Checking regex v0.2.11 [INFO] [stderr] Checking d20 v0.1.0 [INFO] [stderr] Checking battletest v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/monsterlib.rs:239:9 [INFO] [stderr] | [INFO] [stderr] 239 | for i in 0..nthreads [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/monsterlib.rs:232:28 [INFO] [stderr] | [INFO] [stderr] 232 | pub fn fight_multithreaded(mut t1: Vec, mut t2: Vec, iterations: u32, nthreads: usize) [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/monsterlib.rs:232:50 [INFO] [stderr] | [INFO] [stderr] 232 | pub fn fight_multithreaded(mut t1: Vec, mut t2: Vec, iterations: u32, nthreads: usize) [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/monsterlib.rs:241:13 [INFO] [stderr] | [INFO] [stderr] 241 | let mut pb = mb.create_bar((iterations/nthreads as u32) as u64); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/monsterlib.rs:239:9 [INFO] [stderr] | [INFO] [stderr] 239 | for i in 0..nthreads [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/monsterlib.rs:245:13 [INFO] [stderr] | [INFO] [stderr] 245 | sender_n.send(arena_n.fight(pb)); [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: variable does not need to be mutable [INFO] [stderr] --> src/monsterlib.rs:232:28 [INFO] [stderr] | [INFO] [stderr] 232 | pub fn fight_multithreaded(mut t1: Vec, mut t2: Vec, iterations: u32, nthreads: usize) [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/monsterlib.rs:232:50 [INFO] [stderr] | [INFO] [stderr] 232 | pub fn fight_multithreaded(mut t1: Vec, mut t2: Vec, iterations: u32, nthreads: usize) [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/monsterlib.rs:241:13 [INFO] [stderr] | [INFO] [stderr] 241 | let mut pb = mb.create_bar((iterations/nthreads as u32) as u64); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/monsterlib.rs:245:13 [INFO] [stderr] | [INFO] [stderr] 245 | sender_n.send(arena_n.fight(pb)); [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] Finished dev [unoptimized + debuginfo] target(s) in 5.84s [INFO] running `"docker" "inspect" "ca08176518f105adeb7b936ab17b1df54242bcaa691011cf52b3a3c5e6ab046e"` [INFO] running `"docker" "rm" "-f" "ca08176518f105adeb7b936ab17b1df54242bcaa691011cf52b3a3c5e6ab046e"` [INFO] [stdout] ca08176518f105adeb7b936ab17b1df54242bcaa691011cf52b3a3c5e6ab046e