[INFO] cloning repository https://github.com/narenkulk/rust-practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/narenkulk/rust-practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnarenkulk%2Frust-practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnarenkulk%2Frust-practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0c1d7c43ce33ff86f91618301849253ca197d043 [INFO] testing narenkulk/rust-practice against 1.91.0 for beta-1.92-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnarenkulk%2Frust-practice" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/narenkulk/rust-practice [INFO] finished tweaking git repo https://github.com/narenkulk/rust-practice [INFO] tweaked toml for git repo https://github.com/narenkulk/rust-practice written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/narenkulk/rust-practice on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/narenkulk/rust-practice already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded strum_macros v0.17.1 [INFO] [stderr] Downloaded strum v0.17.1 [INFO] [stderr] Downloaded serde v1.0.175 [INFO] [stderr] Downloaded serde_derive v1.0.175 [INFO] [stderr] Downloaded unicode-segmentation v1.10.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a10640c7a687f5b3f035e6bb0169c8b9fa51d8ad031e7466d48a3b02130123f8 [INFO] running `Command { std: "docker" "start" "-a" "a10640c7a687f5b3f035e6bb0169c8b9fa51d8ad031e7466d48a3b02130123f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a10640c7a687f5b3f035e6bb0169c8b9fa51d8ad031e7466d48a3b02130123f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a10640c7a687f5b3f035e6bb0169c8b9fa51d8ad031e7466d48a3b02130123f8", kill_on_drop: false }` [INFO] [stdout] a10640c7a687f5b3f035e6bb0169c8b9fa51d8ad031e7466d48a3b02130123f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 193b55b41bbbed574dfb0bf8dbfb122a476ee3a38c17480047877d653264862b [INFO] running `Command { std: "docker" "start" "-a" "193b55b41bbbed574dfb0bf8dbfb122a476ee3a38c17480047877d653264862b", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde v1.0.175 [INFO] [stderr] Compiling serde_derive v1.0.175 [INFO] [stderr] Compiling serde_json v1.0.103 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Compiling ryu v1.0.15 [INFO] [stderr] Compiling itoa v1.0.9 [INFO] [stderr] Compiling minigrep v0.1.0 (/opt/rustwide/workdir/17_minigrep) [INFO] [stderr] Compiling strum v0.17.1 [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/09_modules) [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir/19_iterators) [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> 19_iterators/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_size` is never used [INFO] [stdout] --> 19_iterators/src/lib.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling generics v0.1.0 (/opt/rustwide/workdir/13_generics) [INFO] [stderr] Compiling error_handling v0.1.0 (/opt/rustwide/workdir/12_error_handling) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/03_ownership) [INFO] [stderr] Compiling quote v1.0.31 [INFO] [stderr] Compiling slices v0.1.0 (/opt/rustwide/workdir/04_slices) [INFO] [stderr] Compiling structure v0.1.0 (/opt/rustwide/workdir/07_structure) [INFO] [stderr] Compiling str_String v0.1.0 (/opt/rustwide/workdir/06_str_string) [INFO] [stderr] Compiling vectors v0.1.0 (/opt/rustwide/workdir/10_vectors) [INFO] [stderr] Compiling practice_concepts v0.1.0 (/opt/rustwide/workdir/05_control_flow) [INFO] [stderr] Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/15_lifetimes) [INFO] [stderr] Compiling traits v0.1.0 (/opt/rustwide/workdir/14_traits) [INFO] [stderr] Compiling writing_tests v0.1.0 (/opt/rustwide/workdir/16_writing_tests) [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> 16_writing_tests/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> 16_writing_tests/src/lib.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 11 | fn can_hold(self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/20_smart_pointers) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> 20_smart_pointers/src/main.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 5 - Cons(i32, Box), [INFO] [stdout] 5 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling getrandom v0.2.10 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling stack_heap v0.1.0 (/opt/rustwide/workdir/02_stack_heap) [INFO] [stderr] Compiling closure v0.1.0 (/opt/rustwide/workdir/18_closure) [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stdout] warning: field `height` is never read [INFO] [stdout] --> 18_closure/src/main.rs:83:9 [INFO] [stdout] | [INFO] [stdout] 81 | struct Rectangle { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 82 | width: u32, [INFO] [stdout] 83 | height: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Rectangle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/01_guessing_game) [INFO] [stderr] Compiling guessing_game2 v0.1.0 (/opt/rustwide/workdir/01a_guessing_game) [INFO] [stderr] Compiling strum_macros v0.17.1 [INFO] [stderr] Compiling enum_example v0.1.0 (/opt/rustwide/workdir/08_enum_example) [INFO] [stderr] Compiling hash_map v0.1.0 (/opt/rustwide/workdir/11_hash_map) [INFO] [stdout] warning: variants `Cent` and `Dollar` are never constructed [INFO] [stdout] --> 08_enum_example/src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Coins { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 8 | Quarter(CANProvince), [INFO] [stdout] 9 | Cent, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | Dollar, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Coins` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ipv4Addr` is never constructed [INFO] [stdout] --> 08_enum_example/src/main.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct Ipv4Addr {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ipv6Addr` is never constructed [INFO] [stdout] --> 08_enum_example/src/main.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct Ipv6Addr {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IPAddr` is never used [INFO] [stdout] --> 08_enum_example/src/main.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | enum IPAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.89s [INFO] running `Command { std: "docker" "inspect" "193b55b41bbbed574dfb0bf8dbfb122a476ee3a38c17480047877d653264862b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "193b55b41bbbed574dfb0bf8dbfb122a476ee3a38c17480047877d653264862b", kill_on_drop: false }` [INFO] [stdout] 193b55b41bbbed574dfb0bf8dbfb122a476ee3a38c17480047877d653264862b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a187f7b6fdd2572279db84ed50c3955c1aea80dfca0902ae7beee4943c83aeea [INFO] running `Command { std: "docker" "start" "-a" "a187f7b6fdd2572279db84ed50c3955c1aea80dfca0902ae7beee4943c83aeea", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> 16_writing_tests/src/lib.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> 16_writing_tests/src/lib.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 11 | fn can_hold(self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Shoe` is never constructed [INFO] [stdout] --> 19_iterators/src/lib.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | struct Shoe { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `shoes_in_size` is never used [INFO] [stdout] --> 19_iterators/src/lib.rs:12:4 [INFO] [stdout] | [INFO] [stdout] 12 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling writing_tests v0.1.0 (/opt/rustwide/workdir/16_writing_tests) [INFO] [stderr] Compiling iterators v0.1.0 (/opt/rustwide/workdir/19_iterators) [INFO] [stderr] Compiling guessing_game v0.1.0 (/opt/rustwide/workdir/01_guessing_game) [INFO] [stderr] Compiling hash_map v0.1.0 (/opt/rustwide/workdir/11_hash_map) [INFO] [stderr] Compiling generics v0.1.0 (/opt/rustwide/workdir/13_generics) [INFO] [stderr] Compiling enum_example v0.1.0 (/opt/rustwide/workdir/08_enum_example) [INFO] [stderr] Compiling guessing_game2 v0.1.0 (/opt/rustwide/workdir/01a_guessing_game) [INFO] [stderr] Compiling minigrep v0.1.0 (/opt/rustwide/workdir/17_minigrep) [INFO] [stdout] warning: variants `Cent` and `Dollar` are never constructed [INFO] [stdout] --> 08_enum_example/src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 7 | enum Coins { [INFO] [stdout] | ----- variants in this enum [INFO] [stdout] 8 | Quarter(CANProvince), [INFO] [stdout] 9 | Cent, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | Dollar, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Coins` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ipv4Addr` is never constructed [INFO] [stdout] --> 08_enum_example/src/main.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct Ipv4Addr {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Ipv6Addr` is never constructed [INFO] [stdout] --> 08_enum_example/src/main.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | struct Ipv6Addr {} [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IPAddr` is never used [INFO] [stdout] --> 08_enum_example/src/main.rs:25:6 [INFO] [stdout] | [INFO] [stdout] 25 | enum IPAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/09_modules) [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> 16_writing_tests/tests/integration_tests.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 6 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `setup` is never used [INFO] [stdout] --> 16_writing_tests/tests/common/mod.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn setup() { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling stack_heap v0.1.0 (/opt/rustwide/workdir/02_stack_heap) [INFO] [stderr] Compiling vectors v0.1.0 (/opt/rustwide/workdir/10_vectors) [INFO] [stderr] Compiling practice_concepts v0.1.0 (/opt/rustwide/workdir/05_control_flow) [INFO] [stderr] Compiling str_String v0.1.0 (/opt/rustwide/workdir/06_str_string) [INFO] [stderr] Compiling closure v0.1.0 (/opt/rustwide/workdir/18_closure) [INFO] [stderr] Compiling slices v0.1.0 (/opt/rustwide/workdir/04_slices) [INFO] [stderr] Compiling ownership v0.1.0 (/opt/rustwide/workdir/03_ownership) [INFO] [stderr] Compiling structure v0.1.0 (/opt/rustwide/workdir/07_structure) [INFO] [stderr] Compiling traits v0.1.0 (/opt/rustwide/workdir/14_traits) [INFO] [stderr] Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/15_lifetimes) [INFO] [stderr] Compiling smart_pointers v0.1.0 (/opt/rustwide/workdir/20_smart_pointers) [INFO] [stderr] Compiling error_handling v0.1.0 (/opt/rustwide/workdir/12_error_handling) [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> 20_smart_pointers/src/main.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | Cons(i32, Box), [INFO] [stdout] | ---- ^^^ ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 5 - Cons(i32, Box), [INFO] [stdout] 5 + Cons((), ()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.81s [INFO] running `Command { std: "docker" "inspect" "a187f7b6fdd2572279db84ed50c3955c1aea80dfca0902ae7beee4943c83aeea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a187f7b6fdd2572279db84ed50c3955c1aea80dfca0902ae7beee4943c83aeea", kill_on_drop: false }` [INFO] [stdout] a187f7b6fdd2572279db84ed50c3955c1aea80dfca0902ae7beee4943c83aeea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 78c2951ad91797bde8638e1ccf32ac40d82f104e4929ac7e3a3af144e97ed147 [INFO] running `Command { std: "docker" "start" "-a" "78c2951ad91797bde8638e1ccf32ac40d82f104e4929ac7e3a3af144e97ed147", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] warning: struct `Shoe` is never constructed [INFO] [stderr] --> 19_iterators/src/lib.rs:7:8 [INFO] [stderr] | [INFO] [stderr] 7 | struct Shoe { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `shoes_in_size` is never used [INFO] [stderr] --> 19_iterators/src/lib.rs:12:4 [INFO] [stderr] | [INFO] [stderr] 12 | fn shoes_in_size(shoes: Vec, shoe_size: u32) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `iterators` (lib) generated 2 warnings [INFO] [stderr] warning: struct `Rectangle` is never constructed [INFO] [stderr] --> 16_writing_tests/src/lib.rs:5:8 [INFO] [stderr] | [INFO] [stderr] 5 | struct Rectangle { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: method `can_hold` is never used [INFO] [stderr] --> 16_writing_tests/src/lib.rs:11:8 [INFO] [stderr] | [INFO] [stderr] 10 | impl Rectangle { [INFO] [stderr] | -------------- method in this implementation [INFO] [stderr] 11 | fn can_hold(self, other: &Rectangle) -> bool { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `writing_tests` (lib) generated 2 warnings [INFO] [stderr] warning: variants `Cent` and `Dollar` are never constructed [INFO] [stderr] --> 08_enum_example/src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 7 | enum Coins { [INFO] [stderr] | ----- variants in this enum [INFO] [stderr] 8 | Quarter(CANProvince), [INFO] [stderr] 9 | Cent, [INFO] [stderr] | ^^^^ [INFO] [stderr] 10 | Dollar, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `Coins` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: struct `Ipv4Addr` is never constructed [INFO] [stderr] --> 08_enum_example/src/main.rs:21:8 [INFO] [stderr] | [INFO] [stderr] 21 | struct Ipv4Addr {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct `Ipv6Addr` is never constructed [INFO] [stderr] --> 08_enum_example/src/main.rs:23:8 [INFO] [stderr] | [INFO] [stderr] 23 | struct Ipv6Addr {} [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum `IPAddr` is never used [INFO] [stderr] --> 08_enum_example/src/main.rs:25:6 [INFO] [stderr] | [INFO] [stderr] 25 | enum IPAddr { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field `value` is never read [INFO] [stderr] --> 16_writing_tests/tests/integration_tests.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 5 | struct Guess { [INFO] [stderr] | ----- field in this struct [INFO] [stderr] 6 | value: i32, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `setup` is never used [INFO] [stderr] --> 16_writing_tests/tests/common/mod.rs:1:8 [INFO] [stderr] | [INFO] [stderr] 1 | pub fn setup() { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `enum_example` (bin "enum_example" test) generated 4 warnings [INFO] [stderr] warning: `writing_tests` (test "integration_tests") generated 2 warnings [INFO] [stderr] warning: fields `0` and `1` are never read [INFO] [stderr] --> 20_smart_pointers/src/main.rs:5:10 [INFO] [stderr] | [INFO] [stderr] 5 | Cons(i32, Box), [INFO] [stderr] | ---- ^^^ ^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | fields in this variant [INFO] [stderr] | [INFO] [stderr] = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stderr] | [INFO] [stderr] 5 - Cons(i32, Box), [INFO] [stderr] 5 + Cons((), ()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `smart_pointers` (bin "smart_pointers" test) generated 1 warning [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/closure-49a9c152ecd07ebf) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/enum_example-8aabc23bc203371e) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/error_handling-452233346421e5aa) [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] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/generics-b98e114b4b1f638d) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/generics-515610db2e724d93) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game-7482c9b4303499e0) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_game2-83091706c51a506b) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_new_guess_valid_value ... 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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hash_map-294290479c0e96fe) [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iterators-1fb67b4779ecbe3b) [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] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test iterators_demonstration ... ok [INFO] [stdout] test into_iter_demo ... ok [INFO] [stdout] test iterators_sum ... ok [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/iterators-a25a57c9a8a48e12) [INFO] [stdout] test matching_shoes ... ok [INFO] [stdout] test iter_mut_demo ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lifetimes-92ec344ae1a7a3a9) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minigrep-dd9930ebdac00d4b) [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrep-7c3219b61bd3d63b) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/modules-0efc15e9b3c0ae43) [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/modules-cbe69c8e8487f144) [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership-5a8c6c51fc79db75) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/practice_concepts-00198c3501b6fd1c) [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/slices-214396175661b6f7) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests::one_result ... ok [INFO] [stdout] test tests::search_case_insensitive ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 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] [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] [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] [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] [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/smart_pointers-a5866e52e90da4f6) [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] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test test_my_box ... 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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/stack_heap-f5d12cf8a8879bd1) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/str_String-38caeea181cb4caa) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/structure-8bb86b56a8f22753) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/traits-ff2969bb4076067b) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/vectors-e137f53327396c3b) [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] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/writing_tests-4ed6422e93f124da) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test tests::can_hold_rectangles ... ok [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] test tests::add_two_to_two ... ok [INFO] [stdout] test tests::result_contains_carol ... ok [INFO] [stdout] test tests::exploration ... ok [INFO] [stdout] [INFO] [stderr] Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-4494ae2e725de04b) [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test it_adds_two ... ok [INFO] [stderr] Doc-tests generics [INFO] [stdout] test guess_work_greater_than_100 - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s [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] [stderr] Doc-tests iterators [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test 19_iterators/src/lib.rs - Shoe (line 2) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.27s [INFO] [stdout] [INFO] [stderr] Doc-tests minigrep [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] [stderr] Doc-tests modules [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] [stderr] Doc-tests writing_tests [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" "78c2951ad91797bde8638e1ccf32ac40d82f104e4929ac7e3a3af144e97ed147", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78c2951ad91797bde8638e1ccf32ac40d82f104e4929ac7e3a3af144e97ed147", kill_on_drop: false }` [INFO] [stdout] 78c2951ad91797bde8638e1ccf32ac40d82f104e4929ac7e3a3af144e97ed147