[INFO] updating cached repository https://github.com/JonathanWoollett-Light/rust_solutions [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e68912154d8428029a2f6ff4e3e863d8b47171a4 [INFO] testing JonathanWoollett-Light/rust_solutions against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Frust_solutions" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JonathanWoollett-Light/rust_solutions on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JonathanWoollett-Light/rust_solutions [INFO] finished tweaking git repo https://github.com/JonathanWoollett-Light/rust_solutions [INFO] tweaked toml for git repo https://github.com/JonathanWoollett-Light/rust_solutions written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f03e772f2b6bf3d060c5f2cf3438d382c651c65945b7d74a7c9738fba2235370 [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" "f03e772f2b6bf3d060c5f2cf3438d382c651c65945b7d74a7c9738fba2235370", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f03e772f2b6bf3d060c5f2cf3438d382c651c65945b7d74a7c9738fba2235370", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f03e772f2b6bf3d060c5f2cf3438d382c651c65945b7d74a7c9738fba2235370", kill_on_drop: false }` [INFO] [stdout] f03e772f2b6bf3d060c5f2cf3438d382c651c65945b7d74a7c9738fba2235370 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bbfc348fd6ab06eea61d6b9481250afc60d8ef57cd13009cae7151088c274777 [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" "bbfc348fd6ab06eea61d6b9481250afc60d8ef57cd13009cae7151088c274777", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.74 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling rust_solutions v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/lib.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | let (height,width) = (grid.len(),grid[0].len()); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `index` is never read [INFO] [stdout] --> src/lib.rs:23:17 [INFO] [stdout] | [INFO] [stdout] 23 | let mut index = usize::default(); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.44s [INFO] running `Command { std: "docker" "inspect" "bbfc348fd6ab06eea61d6b9481250afc60d8ef57cd13009cae7151088c274777", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbfc348fd6ab06eea61d6b9481250afc60d8ef57cd13009cae7151088c274777", kill_on_drop: false }` [INFO] [stdout] bbfc348fd6ab06eea61d6b9481250afc60d8ef57cd13009cae7151088c274777 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aadc9aad47962e9479bb48f24f0a1f234332aa723402a296ab7d332ab490e112 [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" "aadc9aad47962e9479bb48f24f0a1f234332aa723402a296ab7d332ab490e112", kill_on_drop: false }` [INFO] [stderr] Compiling rust_solutions v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/lib.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | let (height,width) = (grid.len(),grid[0].len()); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `index` is never read [INFO] [stdout] --> src/lib.rs:23:17 [INFO] [stdout] | [INFO] [stdout] 23 | let mut index = usize::default(); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `height` [INFO] [stdout] --> src/lib.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | let (height,width) = (grid.len(),grid[0].len()); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `index` is never read [INFO] [stdout] --> src/lib.rs:23:17 [INFO] [stdout] | [INFO] [stdout] 23 | let mut index = usize::default(); [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.13s [INFO] running `Command { std: "docker" "inspect" "aadc9aad47962e9479bb48f24f0a1f234332aa723402a296ab7d332ab490e112", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aadc9aad47962e9479bb48f24f0a1f234332aa723402a296ab7d332ab490e112", kill_on_drop: false }` [INFO] [stdout] aadc9aad47962e9479bb48f24f0a1f234332aa723402a296ab7d332ab490e112 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 368ea7eec20a47c6db0ab6d486a4ce0f29021ef43f5e51009ef9d6340c4aa648 [INFO] running `Command { std: "docker" "start" "-a" "368ea7eec20a47c6db0ab6d486a4ce0f29021ef43f5e51009ef9d6340c4aa648", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `height` [INFO] [stderr] --> src/lib.rs:7:14 [INFO] [stderr] | [INFO] [stderr] 7 | let (height,width) = (grid.len(),grid[0].len()); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `index` is never read [INFO] [stderr] --> src/lib.rs:23:17 [INFO] [stderr] | [INFO] [stderr] 23 | let mut index = usize::default(); [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `height` [INFO] [stderr] --> src/lib.rs:7:14 [INFO] [stderr] | [INFO] [stderr] 7 | let (height,width) = (grid.len(),grid[0].len()); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `index` is never read [INFO] [stderr] --> src/lib.rs:23:17 [INFO] [stderr] | [INFO] [stderr] 23 | let mut index = usize::default(); [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_solutions-50ea359df5a5fb85 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/tests-86ca27b9b72ffda8 [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] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test tests::min_steps_to_make_strings_anagram ... ok [INFO] [stdout] test tests::tweet_counts ... ok [INFO] [stdout] test tests::double_exists ... ok [INFO] [stdout] test tests::count_negatives ... ok [INFO] [stdout] test tests::two_sum ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests rust_solutions [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 `Command { std: "docker" "inspect" "368ea7eec20a47c6db0ab6d486a4ce0f29021ef43f5e51009ef9d6340c4aa648", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "368ea7eec20a47c6db0ab6d486a4ce0f29021ef43f5e51009ef9d6340c4aa648", kill_on_drop: false }` [INFO] [stdout] 368ea7eec20a47c6db0ab6d486a4ce0f29021ef43f5e51009ef9d6340c4aa648