[INFO] fetching crate rust-samples 0.1.0... [INFO] building rust-samples-0.1.0 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate rust-samples 0.1.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate rust-samples 0.1.0 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rust-samples 0.1.0 [INFO] finished tweaking crates.io crate rust-samples 0.1.0 [INFO] tweaked toml for crates.io crate rust-samples 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate rust-samples 0.1.0 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4f4b14be9302a4365fcdd7b26d92dd54766a7a094ffa11e0a1120208f39d2d78 [INFO] running `Command { std: "docker" "start" "-a" "4f4b14be9302a4365fcdd7b26d92dd54766a7a094ffa11e0a1120208f39d2d78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4f4b14be9302a4365fcdd7b26d92dd54766a7a094ffa11e0a1120208f39d2d78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f4b14be9302a4365fcdd7b26d92dd54766a7a094ffa11e0a1120208f39d2d78", kill_on_drop: false }` [INFO] [stdout] 4f4b14be9302a4365fcdd7b26d92dd54766a7a094ffa11e0a1120208f39d2d78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a35789282577c8d73512f9f7baccbb2e00cab26c94786766b9c5091cf508b675 [INFO] running `Command { std: "docker" "start" "-a" "a35789282577c8d73512f9f7baccbb2e00cab26c94786766b9c5091cf508b675", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.97 [INFO] [stderr] Compiling ppv-lite86 v0.2.10 [INFO] [stderr] Compiling getrandom v0.2.3 [INFO] [stderr] Compiling rand_core v0.6.3 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.4 [INFO] [stderr] Compiling rust-samples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `core::fmt` [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | use core::fmt; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Formatter` [INFO] [stdout] --> src/lib.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | use std::fmt::Formatter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:31:16 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::eq` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ptr::eq; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Pointer` [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::fmt::Pointer; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `simulated_user_specified_value` [INFO] [stdout] --> src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let simulated_user_specified_value = rand::thread_rng().gen_range(1..30); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_user_specified_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `simulated_random_number` [INFO] [stdout] --> src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let simulated_random_number = rand::thread_rng().gen_range(1..10); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_random_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | let y = vec![10, 20, 30, 40]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:162:13 [INFO] [stdout] | [INFO] [stdout] 162 | let mut v1_iter = v1.iter(); [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:179:13 [INFO] [stdout] | [INFO] [stdout] 179 | let mut v1_iter = v1.iter(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `simulated_expensive_calculation` is never used [INFO] [stdout] --> src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn simulated_expensive_calculation(intensity: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout3` is never used [INFO] [stdout] --> src/main.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn generate_workout3(intensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout` is never used [INFO] [stdout] --> src/main.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn generate_workout(intensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `closure_context` is never used [INFO] [stdout] --> src/main.rs:84:4 [INFO] [stdout] | [INFO] [stdout] 84 | fn closure_context() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s [INFO] running `Command { std: "docker" "inspect" "a35789282577c8d73512f9f7baccbb2e00cab26c94786766b9c5091cf508b675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a35789282577c8d73512f9f7baccbb2e00cab26c94786766b9c5091cf508b675", kill_on_drop: false }` [INFO] [stdout] a35789282577c8d73512f9f7baccbb2e00cab26c94786766b9c5091cf508b675 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b28422b1c047d65895441dbf0c05a890bf9c9811622197e7dfa679f1cb6a8e49 [INFO] running `Command { std: "docker" "start" "-a" "b28422b1c047d65895441dbf0c05a890bf9c9811622197e7dfa679f1cb6a8e49", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `core::fmt` [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | use core::fmt; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Formatter` [INFO] [stdout] --> src/lib.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | use std::fmt::Formatter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rust-samples v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:31:16 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `core::fmt` [INFO] [stdout] --> src/lib.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | use core::fmt; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Formatter` [INFO] [stdout] --> src/lib.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | use std::fmt::Formatter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c1` [INFO] [stdout] --> src/lib.rs:31:16 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c2` [INFO] [stdout] --> src/lib.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn mix(c1: PrimaryColor, c2: PrimaryColor) -> SecondaryColor { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_c2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::eq` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ptr::eq; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::borrow::Borrow` [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::borrow::Borrow; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Pointer` [INFO] [stdout] --> src/main.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::fmt::Pointer; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `simulated_user_specified_value` [INFO] [stdout] --> src/main.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let simulated_user_specified_value = rand::thread_rng().gen_range(1..30); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_user_specified_value` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `simulated_random_number` [INFO] [stdout] --> src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let simulated_random_number = rand::thread_rng().gen_range(1..10); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_simulated_random_number` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/main.rs:93:9 [INFO] [stdout] | [INFO] [stdout] 93 | let y = vec![10, 20, 30, 40]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:162:13 [INFO] [stdout] | [INFO] [stdout] 162 | let mut v1_iter = v1.iter(); [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] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:179:13 [INFO] [stdout] | [INFO] [stdout] 179 | let mut v1_iter = v1.iter(); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `simulated_expensive_calculation` is never used [INFO] [stdout] --> src/main.rs:27:4 [INFO] [stdout] | [INFO] [stdout] 27 | fn simulated_expensive_calculation(intensity: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout3` is never used [INFO] [stdout] --> src/main.rs:34:4 [INFO] [stdout] | [INFO] [stdout] 34 | fn generate_workout3(intensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_workout` is never used [INFO] [stdout] --> src/main.rs:47:4 [INFO] [stdout] | [INFO] [stdout] 47 | fn generate_workout(intensity: u32, random_number: u32) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `closure_context` is never used [INFO] [stdout] --> src/main.rs:84:4 [INFO] [stdout] | [INFO] [stdout] 84 | fn closure_context() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] running `Command { std: "docker" "inspect" "b28422b1c047d65895441dbf0c05a890bf9c9811622197e7dfa679f1cb6a8e49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b28422b1c047d65895441dbf0c05a890bf9c9811622197e7dfa679f1cb6a8e49", kill_on_drop: false }` [INFO] [stdout] b28422b1c047d65895441dbf0c05a890bf9c9811622197e7dfa679f1cb6a8e49