[INFO] updating cached repository https://github.com/erewok/milos-mazes-rs [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] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 91bd949e941f0bad4028af6f764f083bf36af106 [INFO] testing erewok/milos-mazes-rs against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ferewok%2Fmilos-mazes-rs" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/erewok/milos-mazes-rs on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/erewok/milos-mazes-rs [INFO] finished tweaking git repo https://github.com/erewok/milos-mazes-rs [INFO] tweaked toml for git repo https://github.com/erewok/milos-mazes-rs written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/erewok/milos-mazes-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d706a33bfbb037c2bf826bb68761d4175093b8d4aca46138287b027c7daf0882 [INFO] running `"docker" "start" "-a" "d706a33bfbb037c2bf826bb68761d4175093b8d4aca46138287b027c7daf0882"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling sw-composite v0.7.6 [INFO] [stderr] Compiling typed-arena v2.0.1 [INFO] [stderr] Compiling servo-fontconfig-sys v4.0.9 [INFO] [stderr] Compiling deflate v0.7.20 [INFO] [stderr] Compiling euclid v0.20.7 [INFO] [stderr] Compiling png v0.15.3 [INFO] [stderr] Compiling cmake v0.1.42 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling servo-freetype-sys v4.0.5 [INFO] [stderr] Compiling expat-sys v2.1.6 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling lyon_geom v0.14.1 [INFO] [stderr] Compiling lyon_geom v0.15.0 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling freetype v0.4.1 [INFO] [stderr] Compiling servo-fontconfig v0.4.0 [INFO] [stderr] Compiling lyon_path v0.14.0 [INFO] [stderr] Compiling font-kit v0.5.0 [INFO] [stderr] Compiling raqote v0.7.13 [INFO] [stderr] Compiling milos-mazes v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: cannot borrow `cll` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/algorithms.rs:66:21 [INFO] [stderr] | [INFO] [stderr] 65 | let east_cell = cll.east.as_ref().expect("should be some"); [INFO] [stderr] | -------- immutable borrow occurs here [INFO] [stderr] 66 | cll.link((east_cell.row, east_cell.column)); [INFO] [stderr] | ^^^ ------------- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `size` [INFO] [stderr] --> src/grid.rs:111:12 [INFO] [stderr] | [INFO] [stderr] 111 | pub fn size(&self) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `random_cell` [INFO] [stderr] --> src/grid.rs:115:12 [INFO] [stderr] | [INFO] [stderr] 115 | pub fn random_cell(&self) -> &cell::Cell { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 21.58s [INFO] running `"docker" "inspect" "d706a33bfbb037c2bf826bb68761d4175093b8d4aca46138287b027c7daf0882"` [INFO] running `"docker" "rm" "-f" "d706a33bfbb037c2bf826bb68761d4175093b8d4aca46138287b027c7daf0882"` [INFO] [stdout] d706a33bfbb037c2bf826bb68761d4175093b8d4aca46138287b027c7daf0882 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 306206f735958c1e0a2855107120d9f9bee162a01d56ffb6356c743a9036f526 [INFO] running `"docker" "start" "-a" "306206f735958c1e0a2855107120d9f9bee162a01d56ffb6356c743a9036f526"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling milos-mazes v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: cannot borrow `cll` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/algorithms.rs:66:21 [INFO] [stderr] | [INFO] [stderr] 65 | let east_cell = cll.east.as_ref().expect("should be some"); [INFO] [stderr] | -------- immutable borrow occurs here [INFO] [stderr] 66 | cll.link((east_cell.row, east_cell.column)); [INFO] [stderr] | ^^^ ------------- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `size` [INFO] [stderr] --> src/grid.rs:111:12 [INFO] [stderr] | [INFO] [stderr] 111 | pub fn size(&self) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `random_cell` [INFO] [stderr] --> src/grid.rs:115:12 [INFO] [stderr] | [INFO] [stderr] 115 | pub fn random_cell(&self) -> &cell::Cell { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.85s [INFO] running `"docker" "inspect" "306206f735958c1e0a2855107120d9f9bee162a01d56ffb6356c743a9036f526"` [INFO] running `"docker" "rm" "-f" "306206f735958c1e0a2855107120d9f9bee162a01d56ffb6356c743a9036f526"` [INFO] [stdout] 306206f735958c1e0a2855107120d9f9bee162a01d56ffb6356c743a9036f526 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stdout] 9c44b21071e8da35daa8b513b85115604506221e3263ee28b154575af6d00e23 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "9c44b21071e8da35daa8b513b85115604506221e3263ee28b154575af6d00e23"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: cannot borrow `cll` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/algorithms.rs:66:21 [INFO] [stderr] | [INFO] [stderr] 65 | let east_cell = cll.east.as_ref().expect("should be some"); [INFO] [stderr] | -------- immutable borrow occurs here [INFO] [stderr] 66 | cll.link((east_cell.row, east_cell.column)); [INFO] [stderr] | ^^^ ------------- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `size` [INFO] [stderr] --> src/grid.rs:111:12 [INFO] [stderr] | [INFO] [stderr] 111 | pub fn size(&self) -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `random_cell` [INFO] [stderr] --> src/grid.rs:115:12 [INFO] [stderr] | [INFO] [stderr] 115 | pub fn random_cell(&self) -> &cell::Cell { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/milos_mazes-7e0a7052d8867bf5 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "9c44b21071e8da35daa8b513b85115604506221e3263ee28b154575af6d00e23"` [INFO] running `"docker" "rm" "-f" "9c44b21071e8da35daa8b513b85115604506221e3263ee28b154575af6d00e23"` [INFO] [stdout] 9c44b21071e8da35daa8b513b85115604506221e3263ee28b154575af6d00e23