[INFO] cloning repository https://github.com/shiitake05/Udemy-Rust-Lesson [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shiitake05/Udemy-Rust-Lesson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiitake05%2FUdemy-Rust-Lesson", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiitake05%2FUdemy-Rust-Lesson'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3f0dea7d35cd40679c5d244b5b42a8d105ed71ab [INFO] checking shiitake05/Udemy-Rust-Lesson against try#e90f1ff63e694965281f833819a486da29772bdf for pr-146167 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiitake05%2FUdemy-Rust-Lesson" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/shiitake05/Udemy-Rust-Lesson [INFO] finished tweaking git repo https://github.com/shiitake05/Udemy-Rust-Lesson [INFO] tweaked toml for git repo https://github.com/shiitake05/Udemy-Rust-Lesson written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/shiitake05/Udemy-Rust-Lesson on toolchain e90f1ff63e694965281f833819a486da29772bdf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/shiitake05/Udemy-Rust-Lesson 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" "+e90f1ff63e694965281f833819a486da29772bdf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating git repository `https://github.com/shiitake05/lib-demo` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking shiitake05/Udemy-Rust-Lesson against try#e90f1ff63e694965281f833819a486da29772bdf for pr-146167 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiitake05%2FUdemy-Rust-Lesson" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/shiitake05/Udemy-Rust-Lesson [INFO] finished tweaking git repo https://github.com/shiitake05/Udemy-Rust-Lesson [INFO] tweaked toml for git repo https://github.com/shiitake05/Udemy-Rust-Lesson written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/shiitake05/Udemy-Rust-Lesson on toolchain e90f1ff63e694965281f833819a486da29772bdf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/shiitake05/Udemy-Rust-Lesson 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" "+e90f1ff63e694965281f833819a486da29772bdf" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ca7ae52c72fb0dbb8f4b78d9556b9b72ff005b11c598eed01dc19364840dee70 [INFO] running `Command { std: "docker" "start" "-a" "ca7ae52c72fb0dbb8f4b78d9556b9b72ff005b11c598eed01dc19364840dee70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ca7ae52c72fb0dbb8f4b78d9556b9b72ff005b11c598eed01dc19364840dee70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca7ae52c72fb0dbb8f4b78d9556b9b72ff005b11c598eed01dc19364840dee70", kill_on_drop: false }` [INFO] [stdout] ca7ae52c72fb0dbb8f4b78d9556b9b72ff005b11c598eed01dc19364840dee70 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+e90f1ff63e694965281f833819a486da29772bdf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e25018aac4ca389ccf8035d9b6908941157f30850579587568d01ae60564c289 [INFO] running `Command { std: "docker" "start" "-a" "e25018aac4ca389ccf8035d9b6908941157f30850579587568d01ae60564c289", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Compiling syn v2.0.79 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking lib_demo v0.1.0 (https://github.com/shiitake05/lib-demo#15ba4f63) [INFO] [stderr] Checking rust-lesson v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `x` is assigned to, but never used [INFO] [stdout] --> src/debug.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | let mut x = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_x` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | x = 2; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | x = 3; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `y` is assigned to, but never used [INFO] [stdout] --> src/debug.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | let mut y = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_y` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `y` is never read [INFO] [stdout] --> src/debug.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | y = 2; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `y` is never read [INFO] [stdout] --> src/debug.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | y = 3; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | x = 4; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | x = 5; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `x` is assigned to, but never used [INFO] [stdout] --> src/debug.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | let mut x = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_x` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | x = 2; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | x = 3; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `y` is assigned to, but never used [INFO] [stdout] --> src/debug.rs:6:17 [INFO] [stdout] | [INFO] [stdout] 6 | let mut y = 1; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_y` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `y` is never read [INFO] [stdout] --> src/debug.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | y = 2; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `y` is never read [INFO] [stdout] --> src/debug.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | y = 3; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | x = 4; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `x` is never read [INFO] [stdout] --> src/debug.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | x = 5; [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.09s [INFO] running `Command { std: "docker" "inspect" "e25018aac4ca389ccf8035d9b6908941157f30850579587568d01ae60564c289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e25018aac4ca389ccf8035d9b6908941157f30850579587568d01ae60564c289", kill_on_drop: false }` [INFO] [stdout] e25018aac4ca389ccf8035d9b6908941157f30850579587568d01ae60564c289