[INFO] cloning repository https://github.com/gregorholzmann/rust-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gregorholzmann/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregorholzmann%2Frust-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregorholzmann%2Frust-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e44145369c9374ccf0e294cbae2934d301387e2 [INFO] testing gregorholzmann/rust-playground against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgregorholzmann%2Frust-playground" "/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/gregorholzmann/rust-playground on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gregorholzmann/rust-playground [INFO] finished tweaking git repo https://github.com/gregorholzmann/rust-playground [INFO] tweaked toml for git repo https://github.com/gregorholzmann/rust-playground written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/gregorholzmann/rust-playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libc v0.2.26 [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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ba3760fcfdbac660472c0a424f9e10c045c34ca69913e67564d79c25c54a680f [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" "ba3760fcfdbac660472c0a424f9e10c045c34ca69913e67564d79c25c54a680f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ba3760fcfdbac660472c0a424f9e10c045c34ca69913e67564d79c25c54a680f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba3760fcfdbac660472c0a424f9e10c045c34ca69913e67564d79c25c54a680f", kill_on_drop: false }` [INFO] [stdout] ba3760fcfdbac660472c0a424f9e10c045c34ca69913e67564d79c25c54a680f [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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5a6d5c34e98f4437ec937d7cfb8dcdf78288314bd18b1a8fa036f35f7ead1516 [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" "5a6d5c34e98f4437ec937d7cfb8dcdf78288314bd18b1a8fa036f35f7ead1516", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.26 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling rust-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | for x in 0..number_of_cards { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `num_value` is never read [INFO] [stdout] --> src/main.rs:25:21 [INFO] [stdout] | [INFO] [stdout] 25 | let mut num_value: u8 = 0; [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 does not need to be mutable [INFO] [stdout] --> src/main.rs:101:51 [INFO] [stdout] | [INFO] [stdout] 101 | fn end_game(player_hand: Hand, dealer_hand: Hand, mut deck: &mut Vec) { [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] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.31s [INFO] running `Command { std: "docker" "inspect" "5a6d5c34e98f4437ec937d7cfb8dcdf78288314bd18b1a8fa036f35f7ead1516", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a6d5c34e98f4437ec937d7cfb8dcdf78288314bd18b1a8fa036f35f7ead1516", kill_on_drop: false }` [INFO] [stdout] 5a6d5c34e98f4437ec937d7cfb8dcdf78288314bd18b1a8fa036f35f7ead1516 [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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", 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] 645ec52d8f60852efaae73a78ed736d4647e6837c1f08118c1bc5dc47a6ea763 [INFO] running `Command { std: "docker" "start" "-a" "645ec52d8f60852efaae73a78ed736d4647e6837c1f08118c1bc5dc47a6ea763", kill_on_drop: false }` [INFO] [stderr] Compiling rust-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:86:9 [INFO] [stdout] | [INFO] [stdout] 86 | for x in 0..number_of_cards { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `num_value` is never read [INFO] [stdout] --> src/main.rs:25:21 [INFO] [stdout] | [INFO] [stdout] 25 | let mut num_value: u8 = 0; [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 does not need to be mutable [INFO] [stdout] --> src/main.rs:101:51 [INFO] [stdout] | [INFO] [stdout] 101 | fn end_game(player_hand: Hand, dealer_hand: Hand, mut deck: &mut Vec) { [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] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "645ec52d8f60852efaae73a78ed736d4647e6837c1f08118c1bc5dc47a6ea763", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "645ec52d8f60852efaae73a78ed736d4647e6837c1f08118c1bc5dc47a6ea763", kill_on_drop: false }` [INFO] [stdout] 645ec52d8f60852efaae73a78ed736d4647e6837c1f08118c1bc5dc47a6ea763 [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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a1d2a1f69bfaa4bda9e8fa2098245bd1c00cbb90c899ee5feaee043010655940 [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" "a1d2a1f69bfaa4bda9e8fa2098245bd1c00cbb90c899ee5feaee043010655940", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:86:9 [INFO] [stderr] | [INFO] [stderr] 86 | for x in 0..number_of_cards { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `num_value` is never read [INFO] [stderr] --> src/main.rs:25:21 [INFO] [stderr] | [INFO] [stderr] 25 | let mut num_value: u8 = 0; [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: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:101:51 [INFO] [stderr] | [INFO] [stderr] 101 | fn end_game(player_hand: Hand, dealer_hand: Hand, mut deck: &mut Vec) { [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: `rust-playground` (bin "rust-playground" test) generated 3 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_playground-945ddc857e93af2c) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a1d2a1f69bfaa4bda9e8fa2098245bd1c00cbb90c899ee5feaee043010655940", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a1d2a1f69bfaa4bda9e8fa2098245bd1c00cbb90c899ee5feaee043010655940", kill_on_drop: false }` [INFO] [stdout] a1d2a1f69bfaa4bda9e8fa2098245bd1c00cbb90c899ee5feaee043010655940