[INFO] cloning repository https://github.com/flamingoodev/rust-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flamingoodev/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflamingoodev%2Frust-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflamingoodev%2Frust-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1fdf244c822de1dc9748f53aaaf866fb7d42954c [INFO] checking flamingoodev/rust-learn against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflamingoodev%2Frust-learn" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/flamingoodev/rust-learn on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/flamingoodev/rust-learn [INFO] finished tweaking git repo https://github.com/flamingoodev/rust-learn [INFO] tweaked toml for git repo https://github.com/flamingoodev/rust-learn written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/flamingoodev/rust-learn already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1b8aaf85b2297b142eb74e2db36e72c0909b984f31262652c9bc791eb21c9f41 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1b8aaf85b2297b142eb74e2db36e72c0909b984f31262652c9bc791eb21c9f41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1b8aaf85b2297b142eb74e2db36e72c0909b984f31262652c9bc791eb21c9f41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b8aaf85b2297b142eb74e2db36e72c0909b984f31262652c9bc791eb21c9f41", kill_on_drop: false }` [INFO] [stdout] 1b8aaf85b2297b142eb74e2db36e72c0909b984f31262652c9bc791eb21c9f41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4e45404a9f46ab6c9cd15efdd2f0a32afefd5c73aae275999b3e7da8ddb6aa6c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "4e45404a9f46ab6c9cd15efdd2f0a32afefd5c73aae275999b3e7da8ddb6aa6c", kill_on_drop: false }` [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rust-learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::routes::role::pub_print_role` [INFO] [stdout] --> src/routes/user.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::routes::role::pub_print_role; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::TryRecvError` [INFO] [stdout] --> src/syntax/t_channel.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::sync::mpsc::TryRecvError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::sleep` [INFO] [stdout] --> src/syntax/t_channel.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::syntax::t_iter::t_iter` [INFO] [stdout] --> src/tests/t_tests.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::syntax::t_iter::t_iter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/syntax/t_channel.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::routes::role::pub_print_role` [INFO] [stdout] --> src/routes/user.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::routes::role::pub_print_role; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc::TryRecvError` [INFO] [stdout] --> src/syntax/t_channel.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::sync::mpsc::TryRecvError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread::sleep` [INFO] [stdout] --> src/syntax/t_channel.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thread::sleep; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pri_print_role` [INFO] [stdout] --> src/routes/role.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn pri_print_role() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pri_print_user` [INFO] [stdout] --> src/routes/user.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn pri_print_user() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/syntax/t_channel.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | sender.send(i); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `add` that must be used [INFO] [stdout] --> src/syntax/t_string.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | str3.add("!"); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/syntax/t_channel.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 26 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Error` [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::io::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Error` [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | use std::io::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pri_print_role` [INFO] [stdout] --> src/routes/role.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn pri_print_role() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `pri_print_user` [INFO] [stdout] --> src/routes/user.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn pri_print_user() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/syntax/t_channel.rs:40:13 [INFO] [stdout] | [INFO] [stdout] 40 | sender.send(i); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `add` that must be used [INFO] [stdout] --> src/syntax/t_string.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 37 | str3.add("!"); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.17s [INFO] running `Command { std: "docker" "inspect" "4e45404a9f46ab6c9cd15efdd2f0a32afefd5c73aae275999b3e7da8ddb6aa6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e45404a9f46ab6c9cd15efdd2f0a32afefd5c73aae275999b3e7da8ddb6aa6c", kill_on_drop: false }` [INFO] [stdout] 4e45404a9f46ab6c9cd15efdd2f0a32afefd5c73aae275999b3e7da8ddb6aa6c