[INFO] cloning repository https://github.com/LironHazan/rusty-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LironHazan/rusty-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5d4231ec3716e4229c064f306e66030e78d3bfd4 [INFO] testing LironHazan/rusty-playground against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLironHazan%2Frusty-playground" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LironHazan/rusty-playground on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-14/source/Cargo.toml [INFO] crate git repo https://github.com/LironHazan/rusty-playground already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a3fd397819b46d587108e852e56aec03d1ac71505c45018a4233db5e01a04c6f [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" "a3fd397819b46d587108e852e56aec03d1ac71505c45018a4233db5e01a04c6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3fd397819b46d587108e852e56aec03d1ac71505c45018a4233db5e01a04c6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3fd397819b46d587108e852e56aec03d1ac71505c45018a4233db5e01a04c6f", kill_on_drop: false }` [INFO] [stdout] a3fd397819b46d587108e852e56aec03d1ac71505c45018a4233db5e01a04c6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 4bd086059251f21f321b984847976bd480ad1d4d07b8d0ffc91362b1ea5e2c19 [INFO] running `Command { std: "docker" "start" "-a" "4bd086059251f21f321b984847976bd480ad1d4d07b8d0ffc91362b1ea5e2c19", kill_on_drop: false }` [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] [stdout] warning: unused import: `rand::random` [INFO] [stdout] --> src/basics.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | use rand::random; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo` [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | for foo in ll { // LinkedList implements iterator [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `biss` [INFO] [stdout] --> src/structs_and_enums.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let biss = Animal::Dog; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_biss` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chuk` [INFO] [stdout] --> src/structs_and_enums.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let chuk = Animal::Cat; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_chuk` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_ownwership_sum` [INFO] [stdout] --> src/borrows.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_ownwership_sum(v: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dog` [INFO] [stdout] --> src/structs_and_enums.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | Dog, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cat` [INFO] [stdout] --> src/structs_and_enums.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | Cat, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cow` [INFO] [stdout] --> src/structs_and_enums.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | Cow, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Other` [INFO] [stdout] --> src/structs_and_enums.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | Other(u32) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Baz` [INFO] [stdout] --> src/structs_and_enums.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum Baz { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `make_sound` [INFO] [stdout] --> src/structs_and_enums.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn make_sound() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 9.62s [INFO] running `Command { std: "docker" "inspect" "4bd086059251f21f321b984847976bd480ad1d4d07b8d0ffc91362b1ea5e2c19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4bd086059251f21f321b984847976bd480ad1d4d07b8d0ffc91362b1ea5e2c19", kill_on_drop: false }` [INFO] [stdout] 4bd086059251f21f321b984847976bd480ad1d4d07b8d0ffc91362b1ea5e2c19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fb72d57a0e4bec4c6a0de477552ba75a649aa39e5d23b0af81ab877cc5f49a28 [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" "fb72d57a0e4bec4c6a0de477552ba75a649aa39e5d23b0af81ab877cc5f49a28", kill_on_drop: false }` [INFO] [stderr] Compiling rusty-playgraound v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rand::random` [INFO] [stdout] --> src/basics.rs:35:9 [INFO] [stdout] | [INFO] [stdout] 35 | use rand::random; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `foo` [INFO] [stdout] --> src/main.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | for foo in ll { // LinkedList implements iterator [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_foo` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `biss` [INFO] [stdout] --> src/structs_and_enums.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let biss = Animal::Dog; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_biss` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `chuk` [INFO] [stdout] --> src/structs_and_enums.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let chuk = Animal::Cat; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_chuk` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_ownwership_sum` [INFO] [stdout] --> src/borrows.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn take_ownwership_sum(v: Vec) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dog` [INFO] [stdout] --> src/structs_and_enums.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | Dog, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cat` [INFO] [stdout] --> src/structs_and_enums.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | Cat, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Cow` [INFO] [stdout] --> src/structs_and_enums.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | Cow, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Other` [INFO] [stdout] --> src/structs_and_enums.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | Other(u32) [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Baz` [INFO] [stdout] --> src/structs_and_enums.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | enum Baz { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `make_sound` [INFO] [stdout] --> src/structs_and_enums.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn make_sound() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.92s [INFO] running `Command { std: "docker" "inspect" "fb72d57a0e4bec4c6a0de477552ba75a649aa39e5d23b0af81ab877cc5f49a28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb72d57a0e4bec4c6a0de477552ba75a649aa39e5d23b0af81ab877cc5f49a28", kill_on_drop: false }` [INFO] [stdout] fb72d57a0e4bec4c6a0de477552ba75a649aa39e5d23b0af81ab877cc5f49a28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8aec3c905c5fa8a2c7b405530b568eb0a98c1693b6187cc71093dbc756cbe195 [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" "8aec3c905c5fa8a2c7b405530b568eb0a98c1693b6187cc71093dbc756cbe195", kill_on_drop: false }` [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] [stdout] [INFO] [stderr] warning: unused variable: `foo` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/main.rs:23:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] 23 | for foo in ll { // LinkedList implements iterator [INFO] [stdout] [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-ef128bbe2c840994 [INFO] running `Command { std: "docker" "inspect" "8aec3c905c5fa8a2c7b405530b568eb0a98c1693b6187cc71093dbc756cbe195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aec3c905c5fa8a2c7b405530b568eb0a98c1693b6187cc71093dbc756cbe195", kill_on_drop: false }` [INFO] [stdout] 8aec3c905c5fa8a2c7b405530b568eb0a98c1693b6187cc71093dbc756cbe195