[INFO] cloning repository https://github.com/hyunmui/rust_trait [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hyunmui/rust_trait" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyunmui%2Frust_trait", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyunmui%2Frust_trait'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5c6faa06e10a2bca0983873e17bb8fca2020345c [INFO] building hyunmui/rust_trait against try#dd06aa59b9c8562b8b5652c638defc5836c326d0 for pr-137044-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyunmui%2Frust_trait" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hyunmui/rust_trait on toolchain dd06aa59b9c8562b8b5652c638defc5836c326d0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dd06aa59b9c8562b8b5652c638defc5836c326d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hyunmui/rust_trait [INFO] finished tweaking git repo https://github.com/hyunmui/rust_trait [INFO] tweaked toml for git repo https://github.com/hyunmui/rust_trait written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hyunmui/rust_trait 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" "+dd06aa59b9c8562b8b5652c638defc5836c326d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+dd06aa59b9c8562b8b5652c638defc5836c326d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2e879c89e78ddac6837601398d26e5b2737c3632192035e886676510de3f931e [INFO] running `Command { std: "docker" "start" "-a" "2e879c89e78ddac6837601398d26e5b2737c3632192035e886676510de3f931e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e879c89e78ddac6837601398d26e5b2737c3632192035e886676510de3f931e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e879c89e78ddac6837601398d26e5b2737c3632192035e886676510de3f931e", kill_on_drop: false }` [INFO] [stdout] 2e879c89e78ddac6837601398d26e5b2737c3632192035e886676510de3f931e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+dd06aa59b9c8562b8b5652c638defc5836c326d0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e6a6d04602a48ccdfbf291701c0fe37459f4736cce1304828a4114b54ed0106a [INFO] running `Command { std: "docker" "start" "-a" "e6a6d04602a48ccdfbf291701c0fe37459f4736cce1304828a4114b54ed0106a", kill_on_drop: false }` [INFO] [stderr] Compiling rust_trait v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `format` [INFO] [stdout] --> src/lib.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{format, Display}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item1` [INFO] [stdout] --> src/lib.rs:41:28 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn notify2(item1: T, item2: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item2` [INFO] [stdout] --> src/lib.rs:41:38 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn notify2(item1: T, item2: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/lib.rs:45:18 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn notify3_1(item: impl Summary + Display) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/lib.rs:49:40 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn notify3_2(item: T) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `return_summarizable` is never used [INFO] [stdout] --> src/lib.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn return_summarizable() -> impl Summary { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> src/lib.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | struct Pair { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 69 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 70 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> src/lib.rs:80:8 [INFO] [stdout] | [INFO] [stdout] 79 | impl Pair { [INFO] [stdout] | ------------------------------------- method in this implementation [INFO] [stdout] 80 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] running `Command { std: "docker" "inspect" "e6a6d04602a48ccdfbf291701c0fe37459f4736cce1304828a4114b54ed0106a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6a6d04602a48ccdfbf291701c0fe37459f4736cce1304828a4114b54ed0106a", kill_on_drop: false }` [INFO] [stdout] e6a6d04602a48ccdfbf291701c0fe37459f4736cce1304828a4114b54ed0106a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+dd06aa59b9c8562b8b5652c638defc5836c326d0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d187818acf4cd8fa7f2d47f13eb0dcc5f98a9542dd54f67bfdaa5526e4415cac [INFO] running `Command { std: "docker" "start" "-a" "d187818acf4cd8fa7f2d47f13eb0dcc5f98a9542dd54f67bfdaa5526e4415cac", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `format` [INFO] [stdout] --> src/lib.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{format, Display}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item1` [INFO] [stdout] --> src/lib.rs:41:28 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn notify2(item1: T, item2: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item2` [INFO] [stdout] --> src/lib.rs:41:38 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn notify2(item1: T, item2: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/lib.rs:45:18 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn notify3_1(item: impl Summary + Display) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rust_trait v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/lib.rs:49:40 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn notify3_2(item: T) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `return_summarizable` is never used [INFO] [stdout] --> src/lib.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn return_summarizable() -> impl Summary { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> src/lib.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | struct Pair { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 69 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 70 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> src/lib.rs:80:8 [INFO] [stdout] | [INFO] [stdout] 79 | impl Pair { [INFO] [stdout] | ------------------------------------- method in this implementation [INFO] [stdout] 80 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `format` [INFO] [stdout] --> src/lib.rs:1:16 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fmt::{format, Display}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item1` [INFO] [stdout] --> src/lib.rs:41:28 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn notify2(item1: T, item2: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item2` [INFO] [stdout] --> src/lib.rs:41:38 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn notify2(item1: T, item2: T) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/lib.rs:45:18 [INFO] [stdout] | [INFO] [stdout] 45 | pub fn notify3_1(item: impl Summary + Display) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item` [INFO] [stdout] --> src/lib.rs:49:40 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn notify3_2(item: T) { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `return_summarizable` is never used [INFO] [stdout] --> src/lib.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn return_summarizable() -> impl Summary { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> src/lib.rs:64:8 [INFO] [stdout] | [INFO] [stdout] 64 | struct Pair { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/lib.rs:70:8 [INFO] [stdout] | [INFO] [stdout] 69 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 70 | fn new(x: T, y: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> src/lib.rs:80:8 [INFO] [stdout] | [INFO] [stdout] 79 | impl Pair { [INFO] [stdout] | ------------------------------------- method in this implementation [INFO] [stdout] 80 | fn cmp_display(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "d187818acf4cd8fa7f2d47f13eb0dcc5f98a9542dd54f67bfdaa5526e4415cac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d187818acf4cd8fa7f2d47f13eb0dcc5f98a9542dd54f67bfdaa5526e4415cac", kill_on_drop: false }` [INFO] [stdout] d187818acf4cd8fa7f2d47f13eb0dcc5f98a9542dd54f67bfdaa5526e4415cac