[INFO] cloning repository https://github.com/lbt05/rust-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lbt05/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbt05%2Frust-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbt05%2Frust-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a08295079cdc40ec489157aa8c87c5ef30765b43 [INFO] checking lbt05/rust-playground against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbt05%2Frust-playground" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lbt05/rust-playground on toolchain 173780a87744406b7489b28349c0176f14bb3881 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lbt05/rust-playground [INFO] finished tweaking git repo https://github.com/lbt05/rust-playground [INFO] tweaked toml for git repo https://github.com/lbt05/rust-playground written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/lbt05/rust-playground 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" "+173780a87744406b7489b28349c0176f14bb3881" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking lbt05/rust-playground against try#173780a87744406b7489b28349c0176f14bb3881 for pr-135841 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flbt05%2Frust-playground" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lbt05/rust-playground on toolchain 173780a87744406b7489b28349c0176f14bb3881 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lbt05/rust-playground [INFO] finished tweaking git repo https://github.com/lbt05/rust-playground [INFO] tweaked toml for git repo https://github.com/lbt05/rust-playground written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/lbt05/rust-playground 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" "+173780a87744406b7489b28349c0176f14bb3881" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c8da58a928bbeba5853f6d6bb53223ae28bbb0ff2e0b0cb49635cb614ce35546 [INFO] running `Command { std: "docker" "start" "-a" "c8da58a928bbeba5853f6d6bb53223ae28bbb0ff2e0b0cb49635cb614ce35546", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8da58a928bbeba5853f6d6bb53223ae28bbb0ff2e0b0cb49635cb614ce35546", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8da58a928bbeba5853f6d6bb53223ae28bbb0ff2e0b0cb49635cb614ce35546", kill_on_drop: false }` [INFO] [stdout] c8da58a928bbeba5853f6d6bb53223ae28bbb0ff2e0b0cb49635cb614ce35546 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+173780a87744406b7489b28349c0176f14bb3881" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ea432e3d57b21a86e2ce82c4c295fba6c7bca2d9f97927d803c6317347478b40 [INFO] running `Command { std: "docker" "start" "-a" "ea432e3d57b21a86e2ce82c4c295fba6c7bca2d9f97927d803c6317347478b40", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking podio v0.1.6 [INFO] [stderr] Checking miniz_oxide v0.3.6 [INFO] [stderr] Compiling bzip2-sys v0.1.7 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking flate2 v1.0.13 [INFO] [stderr] Checking bzip2 v0.3.3 [INFO] [stderr] Checking zip v0.5.4 [INFO] [stderr] Checking rust-playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `multi_thread_with_channel`, `simple_thread`, `thread_await_example`, `thread_with_arc_share`, `thread_with_arc`, `thread_with_channel`, and `thread_with_move` [INFO] [stdout] --> src/main.rs:3:44 [INFO] [stdout] | [INFO] [stdout] 3 | ...::{multi_thread_with_channel, simple_thread, thread_await_example, thread_with_arc, thread_with_arc_share, thread_with_channel, thread_with_mov... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `multi_thread_with_channel`, `simple_thread`, `thread_await_example`, `thread_with_arc_share`, `thread_with_arc`, `thread_with_channel`, and `thread_with_move` [INFO] [stdout] --> src/main.rs:3:44 [INFO] [stdout] | [INFO] [stdout] 3 | ...::{multi_thread_with_channel, simple_thread, thread_await_example, thread_with_arc, thread_with_arc_share, thread_with_channel, thread_with_mov... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/file/zip_file.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut file = File::open(file_path).unwrap(); [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/file/zip_file.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let mut file = File::open(file_path).unwrap(); [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: function `simple_thread` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn simple_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_await_example` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn thread_await_example() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_move` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn thread_with_move() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_channel` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:47:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn thread_with_channel() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multi_thread_with_channel` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 59 | pub fn multi_thread_with_channel() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_arc` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:99:8 [INFO] [stdout] | [INFO] [stdout] 99 | pub fn thread_with_arc() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_arc_share` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:120:8 [INFO] [stdout] | [INFO] [stdout] 120 | pub fn thread_with_arc_share() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `simple_thread` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 8 | pub fn simple_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculation_method` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:146:4 [INFO] [stdout] | [INFO] [stdout] 146 | fn calculation_method(key: i32, data: Arc>>, thread_tx: Sender) -> () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_await_example` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | pub fn thread_await_example() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_move` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn thread_with_move() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_channel` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:47:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn thread_with_channel() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multi_thread_with_channel` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 59 | pub fn multi_thread_with_channel() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_arc` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:99:8 [INFO] [stdout] | [INFO] [stdout] 99 | pub fn thread_with_arc() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread_with_arc_share` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:120:8 [INFO] [stdout] | [INFO] [stdout] 120 | pub fn thread_with_arc_share() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `calculation_method` is never used [INFO] [stdout] --> src/concurrency/play_concurrency.rs:146:4 [INFO] [stdout] | [INFO] [stdout] 146 | fn calculation_method(key: i32, data: Arc>>, thread_tx: Sender) -> () { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/file/zip_file.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | file.read_to_string(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 14 | let _ = file.read_to_string(&mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/file/zip_file.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | file.read_to_string(&mut buffer); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 14 | let _ = file.read_to_string(&mut buffer); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.07s [INFO] running `Command { std: "docker" "inspect" "ea432e3d57b21a86e2ce82c4c295fba6c7bca2d9f97927d803c6317347478b40", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea432e3d57b21a86e2ce82c4c295fba6c7bca2d9f97927d803c6317347478b40", kill_on_drop: false }` [INFO] [stdout] ea432e3d57b21a86e2ce82c4c295fba6c7bca2d9f97927d803c6317347478b40