[INFO] cloning repository https://github.com/vlad-onis/tower_practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vlad-onis/tower_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlad-onis%2Ftower_practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlad-onis%2Ftower_practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9cfcd5971c540b621e053b98e0be56a6967d6a99 [INFO] checking vlad-onis/tower_practice against try#c6f1a85c8f06c93ddc6200caf413929a2e7e7dd6 for pr-145463 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvlad-onis%2Ftower_practice" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/vlad-onis/tower_practice [INFO] finished tweaking git repo https://github.com/vlad-onis/tower_practice [INFO] tweaked toml for git repo https://github.com/vlad-onis/tower_practice written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/vlad-onis/tower_practice on toolchain c6f1a85c8f06c93ddc6200caf413929a2e7e7dd6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c6f1a85c8f06c93ddc6200caf413929a2e7e7dd6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/vlad-onis/tower_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" "+c6f1a85c8f06c93ddc6200caf413929a2e7e7dd6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c6f1a85c8f06c93ddc6200caf413929a2e7e7dd6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 044994288e9c7261a2079e58460d309e6cb1f3ab18c6b4df3b451a0f515e34c6 [INFO] running `Command { std: "docker" "start" "-a" "044994288e9c7261a2079e58460d309e6cb1f3ab18c6b4df3b451a0f515e34c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "044994288e9c7261a2079e58460d309e6cb1f3ab18c6b4df3b451a0f515e34c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "044994288e9c7261a2079e58460d309e6cb1f3ab18c6b4df3b451a0f515e34c6", kill_on_drop: false }` [INFO] [stdout] 044994288e9c7261a2079e58460d309e6cb1f3ab18c6b4df3b451a0f515e34c6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c6f1a85c8f06c93ddc6200caf413929a2e7e7dd6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5dd9bd194e4fceb483cc12d72e5865c7f509a0de1a04238ad6ca2f7c3583c1a0 [INFO] running `Command { std: "docker" "start" "-a" "5dd9bd194e4fceb483cc12d72e5865c7f509a0de1a04238ad6ca2f7c3583c1a0", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking tower-service v0.3.2 [INFO] [stderr] Checking tower-layer v0.3.2 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Compiling syn v2.0.70 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking hdrhistogram v7.5.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.3.0 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Checking tokio v1.38.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking tokio-util v0.7.10 [INFO] [stderr] Checking tower v0.4.13 [INFO] [stderr] Checking tower_practice v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `fmt::Display` [INFO] [stdout] --> src/alternating_service.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | fmt::Display, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fmt::Display` [INFO] [stdout] --> src/alternating_service.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | fmt::Display, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::task` [INFO] [stdout] --> src/alternating_service.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | use std::task; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `req` [INFO] [stdout] --> src/alternating_service.rs:39:24 [INFO] [stdout] | [INFO] [stdout] 39 | fn call(&mut self, req: AlternatingRequest) -> Self::Future { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_req` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AlternatingRequest` is never constructed [INFO] [stdout] --> src/alternating_service.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct AlternatingRequest; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AlternatingResponse` is never constructed [INFO] [stdout] --> src/alternating_service.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct AlternatingResponse; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `AlternatingService` is never constructed [INFO] [stdout] --> src/alternating_service.rs:17:12 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct AlternatingService { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EchoRequest` is never constructed [INFO] [stdout] --> src/echo_service.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct EchoRequest(String); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EchoResponse` is never constructed [INFO] [stdout] --> src/echo_service.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct EchoResponse(String); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `EchoService` is never constructed [INFO] [stdout] --> src/echo_service.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub struct EchoService; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `req` [INFO] [stdout] --> src/alternating_service.rs:39:24 [INFO] [stdout] | [INFO] [stdout] 39 | fn call(&mut self, req: AlternatingRequest) -> Self::Future { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_req` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/echo_service.rs:122:13 [INFO] [stdout] | [INFO] [stdout] 122 | let mut service = EchoService; [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.11s [INFO] running `Command { std: "docker" "inspect" "5dd9bd194e4fceb483cc12d72e5865c7f509a0de1a04238ad6ca2f7c3583c1a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5dd9bd194e4fceb483cc12d72e5865c7f509a0de1a04238ad6ca2f7c3583c1a0", kill_on_drop: false }` [INFO] [stdout] 5dd9bd194e4fceb483cc12d72e5865c7f509a0de1a04238ad6ca2f7c3583c1a0