[INFO] cloning repository https://github.com/hsmtkk/super-duper-octo-potato [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hsmtkk/super-duper-octo-potato" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsuper-duper-octo-potato", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsuper-duper-octo-potato'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 17904abdce22b9cdbeb4c401e2bf1cfad5399173 [INFO] testing hsmtkk/super-duper-octo-potato against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhsmtkk%2Fsuper-duper-octo-potato" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hsmtkk/super-duper-octo-potato on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hsmtkk/super-duper-octo-potato [INFO] finished tweaking git repo https://github.com/hsmtkk/super-duper-octo-potato [INFO] tweaked toml for git repo https://github.com/hsmtkk/super-duper-octo-potato written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/hsmtkk/super-duper-octo-potato already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 52536101bdbf0770a0124a0a10dd8a243f286321763f17e7abbc957a10cc87bc [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" "52536101bdbf0770a0124a0a10dd8a243f286321763f17e7abbc957a10cc87bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "52536101bdbf0770a0124a0a10dd8a243f286321763f17e7abbc957a10cc87bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52536101bdbf0770a0124a0a10dd8a243f286321763f17e7abbc957a10cc87bc", kill_on_drop: false }` [INFO] [stdout] 52536101bdbf0770a0124a0a10dd8a243f286321763f17e7abbc957a10cc87bc [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--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] dfffcf3bff4637ce0bc8dceb80ce080289d99779b02bc580a9cc33e5424bf895 [INFO] running `Command { std: "docker" "start" "-a" "dfffcf3bff4637ce0bc8dceb80ce080289d99779b02bc580a9cc33e5424bf895", kill_on_drop: false }` [INFO] [stderr] Compiling fibonacci v0.1.0 (/opt/rustwide/workdir/fibonacci) [INFO] [stderr] Compiling average v0.1.0 (/opt/rustwide/workdir/average) [INFO] [stderr] Compiling calc_total v0.1.0 (/opt/rustwide/workdir/calc_total) [INFO] [stderr] Compiling fizzbuzz v0.1.0 (/opt/rustwide/workdir/fizzbuzz) [INFO] [stderr] Compiling kuku v0.1.0 (/opt/rustwide/workdir/kuku) [INFO] [stderr] Compiling char_count v0.1.0 (/opt/rustwide/workdir/char_count) [INFO] [stdout] warning: function is never used: `new` [INFO] [stdout] --> fibonacci/src/fibonacci.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn new() -> impl Calculator { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> fibonacci/src/fibonacci.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | fn new() -> CalculatorImpl { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `average` [INFO] [stdout] --> average/src/average.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn average(scores: Vec) -> i64 { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `new` [INFO] [stdout] --> calc_total/src/calc_total.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn new() -> impl Calculator { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> calc_total/src/calc_total.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | fn new() -> CalculatorImpl { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `result` as mutable because it is also borrowed as immutable [INFO] [stdout] --> char_count/src/char_count.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 10 | if let Some(count) = result.get(&key) { [INFO] [stdout] | ------ immutable borrow occurs here [INFO] [stdout] 11 | result.insert(key, count + 1); [INFO] [stdout] | ^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `count_char` [INFO] [stdout] --> char_count/src/char_count.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn count_char(text:&str) -> HashMap{ [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.95s [INFO] running `Command { std: "docker" "inspect" "dfffcf3bff4637ce0bc8dceb80ce080289d99779b02bc580a9cc33e5424bf895", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfffcf3bff4637ce0bc8dceb80ce080289d99779b02bc580a9cc33e5424bf895", kill_on_drop: false }` [INFO] [stdout] dfffcf3bff4637ce0bc8dceb80ce080289d99779b02bc580a9cc33e5424bf895 [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b440bb35dcdf6276225bfcc3466a740cb9ee2a8bfb5260f42570d782c67fa423 [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" "b440bb35dcdf6276225bfcc3466a740cb9ee2a8bfb5260f42570d782c67fa423", kill_on_drop: false }` [INFO] [stderr] Compiling fizzbuzz v0.1.0 (/opt/rustwide/workdir/fizzbuzz) [INFO] [stderr] Compiling kuku v0.1.0 (/opt/rustwide/workdir/kuku) [INFO] [stderr] Compiling fibonacci v0.1.0 (/opt/rustwide/workdir/fibonacci) [INFO] [stderr] Compiling char_count v0.1.0 (/opt/rustwide/workdir/char_count) [INFO] [stderr] Compiling calc_total v0.1.0 (/opt/rustwide/workdir/calc_total) [INFO] [stderr] Compiling average v0.1.0 (/opt/rustwide/workdir/average) [INFO] [stdout] warning: cannot borrow `result` as mutable because it is also borrowed as immutable [INFO] [stdout] --> char_count/src/char_count.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 10 | if let Some(count) = result.get(&key) { [INFO] [stdout] | ------ immutable borrow occurs here [INFO] [stdout] 11 | result.insert(key, count + 1); [INFO] [stdout] | ^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.85s [INFO] running `Command { std: "docker" "inspect" "b440bb35dcdf6276225bfcc3466a740cb9ee2a8bfb5260f42570d782c67fa423", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b440bb35dcdf6276225bfcc3466a740cb9ee2a8bfb5260f42570d782c67fa423", kill_on_drop: false }` [INFO] [stdout] b440bb35dcdf6276225bfcc3466a740cb9ee2a8bfb5260f42570d782c67fa423 [INFO] running `Command { std: "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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7f878241cad054f3c7954007e354d07b1ba75eb012f6dcb23076077a66fd3728 [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" "7f878241cad054f3c7954007e354d07b1ba75eb012f6dcb23076077a66fd3728", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: cannot borrow `result` as mutable because it is also borrowed as immutable [INFO] [stdout] running 1 test [INFO] [stderr] --> char_count/src/char_count.rs:11:13 [INFO] [stdout] test average::tests::test_average ... ok [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 10 | if let Some(count) = result.get(&key) { [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ------ immutable borrow occurs here [INFO] [stdout] [INFO] [stderr] 11 | result.insert(key, count + 1); [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: `char_count` (bin "char_count" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/average-4b9b01b8dd2c5075) [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/calc_total-4ee2fdd93b4679a8) [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/char_count-7b73b7dd7b243923) [INFO] [stdout] running 1 test [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/fibonacci-1d5a814ef47b88dd) [INFO] [stdout] test calc_total::tests::test_calculate ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test char_count::tests::test_count_char ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/fizzbuzz-a776a228e4b329a9) [INFO] [stdout] test fibonacci::tests::test_fibonacci ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/kuku-6fe9d25206ba4371) [INFO] [stdout] test fizzbuzz::tests::test_fizzbuzz ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [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" "7f878241cad054f3c7954007e354d07b1ba75eb012f6dcb23076077a66fd3728", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f878241cad054f3c7954007e354d07b1ba75eb012f6dcb23076077a66fd3728", kill_on_drop: false }` [INFO] [stdout] 7f878241cad054f3c7954007e354d07b1ba75eb012f6dcb23076077a66fd3728