[INFO] updating cached repository https://github.com/LironHazan/rusty-playground [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] 5d4231ec3716e4229c064f306e66030e78d3bfd4 [INFO] testing LironHazan/rusty-playground against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground" "/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/LironHazan/rusty-playground on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/LironHazan/rusty-playground [INFO] finished tweaking git repo https://github.com/LironHazan/rusty-playground [INFO] tweaked toml for git repo https://github.com/LironHazan/rusty-playground written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/LironHazan/rusty-playground already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [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=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" "+1.44.0" "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] 96aaa860da3d37c82f2142ac3f0fce241318609e2ea30d6490f855cb996f3455 [INFO] running `"docker" "start" "-a" "96aaa860da3d37c82f2142ac3f0fce241318609e2ea30d6490f855cb996f3455"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.69 [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 rusty-playgraound v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `rand::random` [INFO] [stderr] --> src/basics.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | use rand::random; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `foo` [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | for foo in ll { // LinkedList implements iterator [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `biss` [INFO] [stderr] --> src/structs_and_enums.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let biss = Animal::Dog; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_biss` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `chuk` [INFO] [stderr] --> src/structs_and_enums.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let chuk = Animal::Cat; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_chuk` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `take_ownwership_sum` [INFO] [stderr] --> src/borrows.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | fn take_ownwership_sum(v: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dog` [INFO] [stderr] --> src/structs_and_enums.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | Dog, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cat` [INFO] [stderr] --> src/structs_and_enums.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Cat, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cow` [INFO] [stderr] --> src/structs_and_enums.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | Cow, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Other` [INFO] [stderr] --> src/structs_and_enums.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | Other(u32) [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Baz` [INFO] [stderr] --> src/structs_and_enums.rs:21:6 [INFO] [stderr] | [INFO] [stderr] 21 | enum Baz { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_sound` [INFO] [stderr] --> src/structs_and_enums.rs:25:4 [INFO] [stderr] | [INFO] [stderr] 25 | fn make_sound() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.06s [INFO] running `"docker" "inspect" "96aaa860da3d37c82f2142ac3f0fce241318609e2ea30d6490f855cb996f3455"` [INFO] running `"docker" "rm" "-f" "96aaa860da3d37c82f2142ac3f0fce241318609e2ea30d6490f855cb996f3455"` [INFO] [stdout] 96aaa860da3d37c82f2142ac3f0fce241318609e2ea30d6490f855cb996f3455 [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=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" "+1.44.0" "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] fe71465c0793406b9ea05bdb62be074ab8e166413fc1ba4bd61816b4a61ea8e4 [INFO] running `"docker" "start" "-a" "fe71465c0793406b9ea05bdb62be074ab8e166413fc1ba4bd61816b4a61ea8e4"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling rusty-playgraound v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `rand::random` [INFO] [stderr] --> src/basics.rs:35:9 [INFO] [stderr] | [INFO] [stderr] 35 | use rand::random; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `foo` [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | for foo in ll { // LinkedList implements iterator [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `biss` [INFO] [stderr] --> src/structs_and_enums.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let biss = Animal::Dog; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_biss` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `chuk` [INFO] [stderr] --> src/structs_and_enums.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let chuk = Animal::Cat; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_chuk` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `take_ownwership_sum` [INFO] [stderr] --> src/borrows.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | fn take_ownwership_sum(v: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dog` [INFO] [stderr] --> src/structs_and_enums.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | Dog, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cat` [INFO] [stderr] --> src/structs_and_enums.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Cat, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cow` [INFO] [stderr] --> src/structs_and_enums.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | Cow, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Other` [INFO] [stderr] --> src/structs_and_enums.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | Other(u32) [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Baz` [INFO] [stderr] --> src/structs_and_enums.rs:21:6 [INFO] [stderr] | [INFO] [stderr] 21 | enum Baz { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_sound` [INFO] [stderr] --> src/structs_and_enums.rs:25:4 [INFO] [stderr] | [INFO] [stderr] 25 | fn make_sound() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.67s [INFO] running `"docker" "inspect" "fe71465c0793406b9ea05bdb62be074ab8e166413fc1ba4bd61816b4a61ea8e4"` [INFO] running `"docker" "rm" "-f" "fe71465c0793406b9ea05bdb62be074ab8e166413fc1ba4bd61816b4a61ea8e4"` [INFO] [stdout] fe71465c0793406b9ea05bdb62be074ab8e166413fc1ba4bd61816b4a61ea8e4 [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=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" "+1.44.0" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 35ab27eed34c15eff78d44e8dba9c394f35679cb1c708bb73ecc2b7d6a623ff1 [INFO] running `"docker" "start" "-a" "35ab27eed34c15eff78d44e8dba9c394f35679cb1c708bb73ecc2b7d6a623ff1"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unused import: `rand::random` [INFO] [stdout] [INFO] [stderr] --> src/basics.rs:35:9 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 35 | use rand::random; [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `foo` [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stderr] | [INFO] [stderr] 23 | for foo in ll { // LinkedList implements iterator [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `biss` [INFO] [stderr] --> src/structs_and_enums.rs:26:9 [INFO] [stderr] | [INFO] [stderr] 26 | let biss = Animal::Dog; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_biss` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `chuk` [INFO] [stderr] --> src/structs_and_enums.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | let chuk = Animal::Cat; [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_chuk` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `take_ownwership_sum` [INFO] [stderr] --> src/borrows.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | fn take_ownwership_sum(v: Vec) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dog` [INFO] [stderr] --> src/structs_and_enums.rs:15:5 [INFO] [stderr] | [INFO] [stderr] 15 | Dog, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cat` [INFO] [stderr] --> src/structs_and_enums.rs:16:5 [INFO] [stderr] | [INFO] [stderr] 16 | Cat, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Cow` [INFO] [stderr] --> src/structs_and_enums.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | Cow, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Other` [INFO] [stderr] --> src/structs_and_enums.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | Other(u32) [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Baz` [INFO] [stderr] --> src/structs_and_enums.rs:21:6 [INFO] [stderr] | [INFO] [stderr] 21 | enum Baz { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_sound` [INFO] [stderr] --> src/structs_and_enums.rs:25:4 [INFO] [stderr] | [INFO] [stderr] 25 | fn make_sound() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 11 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rusty_playgraound-bd9d4cdb847c9a08 [INFO] running `"docker" "inspect" "35ab27eed34c15eff78d44e8dba9c394f35679cb1c708bb73ecc2b7d6a623ff1"` [INFO] running `"docker" "rm" "-f" "35ab27eed34c15eff78d44e8dba9c394f35679cb1c708bb73ecc2b7d6a623ff1"` [INFO] [stdout] 35ab27eed34c15eff78d44e8dba9c394f35679cb1c708bb73ecc2b7d6a623ff1