[INFO] cloning repository https://github.com/AnthonyDest/Rust-Flamegraph-Profiler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AnthonyDest/Rust-Flamegraph-Profiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyDest%2FRust-Flamegraph-Profiler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyDest%2FRust-Flamegraph-Profiler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 53ff2b3ae951d7a8f5bbd7528a05d933e2dd5de4 [INFO] building AnthonyDest/Rust-Flamegraph-Profiler against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnthonyDest%2FRust-Flamegraph-Profiler" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/AnthonyDest/Rust-Flamegraph-Profiler 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 git repo https://github.com/AnthonyDest/Rust-Flamegraph-Profiler [INFO] finished tweaking git repo https://github.com/AnthonyDest/Rust-Flamegraph-Profiler [INFO] tweaked toml for git repo https://github.com/AnthonyDest/Rust-Flamegraph-Profiler written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/AnthonyDest/Rust-Flamegraph-Profiler 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-channel v0.4.3 [INFO] [stderr] Downloaded sha2 v0.9.1 [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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dd1a1f737e1928cc8338c349395b2512bfe23a97601ca24593b57529adf34565 [INFO] running `Command { std: "docker" "start" "-a" "dd1a1f737e1928cc8338c349395b2512bfe23a97601ca24593b57529adf34565", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dd1a1f737e1928cc8338c349395b2512bfe23a97601ca24593b57529adf34565", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd1a1f737e1928cc8338c349395b2512bfe23a97601ca24593b57529adf34565", kill_on_drop: false }` [INFO] [stdout] dd1a1f737e1928cc8338c349395b2512bfe23a97601ca24593b57529adf34565 [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=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] baaa75e9ee9815717ce500ceb3520ce277c58e95d68d21fc409b8f062c6e15a8 [INFO] running `Command { std: "docker" "start" "-a" "baaa75e9ee9815717ce500ceb3520ce277c58e95d68d21fc409b8f062c6e15a8", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling cpuid-bool v0.1.2 [INFO] [stderr] Compiling hex v0.4.2 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.5 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling crossbeam-channel v0.4.3 [INFO] [stderr] Compiling crossbeam-queue v0.2.3 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling crossbeam v0.7.3 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling sha2 v0.9.1 [INFO] [stderr] Compiling lab4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/idea.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/idea.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/package.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/package.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/student.rs:1:63 [INFO] [stdout] | [INFO] [stdout] 1 | use super::{checksum::Checksum, idea::Idea, package::Package, Event}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/student.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | use crossbeam::channel::{Receiver, Sender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `stdout` [INFO] [stdout] --> src/student.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `skipped_idea`, and `idea_queue` are never read [INFO] [stdout] --> src/student.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Student { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 10 | skipped_idea: bool, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | idea_queue: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/main.rs:6:92 [INFO] [stdout] | [INFO] [stdout] 6 | checksum::Checksum, idea::IdeaGenerator, package::PackageDownloader, student::Student, Event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.49s [INFO] running `Command { std: "docker" "inspect" "baaa75e9ee9815717ce500ceb3520ce277c58e95d68d21fc409b8f062c6e15a8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "baaa75e9ee9815717ce500ceb3520ce277c58e95d68d21fc409b8f062c6e15a8", kill_on_drop: false }` [INFO] [stdout] baaa75e9ee9815717ce500ceb3520ce277c58e95d68d21fc409b8f062c6e15a8 [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=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] 3a6628d9a5cdcff9d60316cf5b363907df3869b1b710cdffe76547ff4d26444e [INFO] running `Command { std: "docker" "start" "-a" "3a6628d9a5cdcff9d60316cf5b363907df3869b1b710cdffe76547ff4d26444e", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/idea.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/idea.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/package.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/package.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/student.rs:1:63 [INFO] [stdout] | [INFO] [stdout] 1 | use super::{checksum::Checksum, idea::Idea, package::Package, Event}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/student.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | use crossbeam::channel::{Receiver, Sender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `stdout` [INFO] [stdout] --> src/student.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `skipped_idea`, and `idea_queue` are never read [INFO] [stdout] --> src/student.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Student { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 10 | skipped_idea: bool, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | idea_queue: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling lab4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/main.rs:6:92 [INFO] [stdout] | [INFO] [stdout] 6 | checksum::Checksum, idea::IdeaGenerator, package::PackageDownloader, student::Student, Event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/idea.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/idea.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/package.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/package.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/student.rs:1:63 [INFO] [stdout] | [INFO] [stdout] 1 | use super::{checksum::Checksum, idea::Idea, package::Package, Event}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/student.rs:2:36 [INFO] [stdout] | [INFO] [stdout] 2 | use crossbeam::channel::{Receiver, Sender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Write` and `stdout` [INFO] [stdout] --> src/student.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 3 | use std::io::{stdout, Write}; [INFO] [stdout] | ^^^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `skipped_idea`, and `idea_queue` are never read [INFO] [stdout] --> src/student.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Student { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 7 | id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 10 | skipped_idea: bool, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 14 | idea_queue: Vec, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] running `Command { std: "docker" "inspect" "3a6628d9a5cdcff9d60316cf5b363907df3869b1b710cdffe76547ff4d26444e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a6628d9a5cdcff9d60316cf5b363907df3869b1b710cdffe76547ff4d26444e", kill_on_drop: false }` [INFO] [stdout] 3a6628d9a5cdcff9d60316cf5b363907df3869b1b710cdffe76547ff4d26444e