[INFO] cloning repository https://github.com/colin353/cbs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/colin353/cbs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin353%2Fcbs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin353%2Fcbs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec12da8f80b4ced632100470436898fe835888f5
[INFO] checking colin353/cbs against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcolin353%2Fcbs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/colin353/cbs on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/colin353/cbs
[INFO] finished tweaking git repo https://github.com/colin353/cbs
[INFO] tweaked toml for git repo https://github.com/colin353/cbs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/colin353/cbs 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 69bf16ff718acb02ec9b60ca27abb0c3f36c20f3ad421861ad4a5d239a6b5731
[INFO] running `Command { std: "docker" "start" "-a" "69bf16ff718acb02ec9b60ca27abb0c3f36c20f3ad421861ad4a5d239a6b5731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69bf16ff718acb02ec9b60ca27abb0c3f36c20f3ad421861ad4a5d239a6b5731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69bf16ff718acb02ec9b60ca27abb0c3f36c20f3ad421861ad4a5d239a6b5731", kill_on_drop: false }`
[INFO] [stdout] 69bf16ff718acb02ec9b60ca27abb0c3f36c20f3ad421861ad4a5d239a6b5731
[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" "-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b123e674dfcc18b3fb061372dc6ce3e970421d7a646402b579a206c5fd83516
[INFO] running `Command { std: "docker" "start" "-a" "7b123e674dfcc18b3fb061372dc6ce3e970421d7a646402b579a206c5fd83516", kill_on_drop: false }`
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[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/actions.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl BuildActions {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] 55 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/cargo.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl CargoResolver {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `calculate_hash`, `with_target`, `with_task`, and `scratch_dir` are never used
[INFO] [stdout]   --> src/context.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Context {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 8  |     pub fn new<T: IntoIterator<Item = (BuildConfigKey, String)>>(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn calculate_hash(&mut self) -> u64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     pub fn with_target(&self, target: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     pub fn with_task(&self, task: &Task) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn scratch_dir(&self) -> std::path::PathBuf {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start_time` and `hash` are never read
[INFO] [stdout]   --> src/core.rs:8:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Context {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 8  |     pub start_time: std::time::Instant,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub hash: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Context` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `TargetEnv` and `TargetOS` are never constructed
[INFO] [stdout]   --> src/core.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum BuildConfigKey {
[INFO] [stdout]    |          -------------- variants in this enum
[INFO] [stdout] 21 |     TargetFamily = 1,
[INFO] [stdout] 22 |     TargetEnv,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 23 |     TargetOS,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BuildConfigKey` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `dependencies`, `result`, `available`, and `dependencies_ready` are never read
[INFO] [stdout]   --> src/core.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct Task {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 31 |     pub id: usize,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 32 |     pub dependencies: Vec<usize>,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub result: Option<BuildResult>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 36 |     pub available: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 37 |     pub dependencies_ready: usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `merged` is never used
[INFO] [stdout]   --> src/core.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 62 | impl BuildResult {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 70 |     pub fn merged<'a, I: Iterator<Item = &'a Self>>(results: I) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `build_plugin` and `hash` are never read
[INFO] [stdout]   --> src/core.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 89 |     pub dependencies: Vec<String>,
[INFO] [stdout] 90 |     pub build_plugin: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub hash: u64,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dependencies` and `calculate_hash` are never used
[INFO] [stdout]    --> src/core.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 103 | impl Config {
[INFO] [stdout]     | ----------- methods in this implementation
[INFO] [stdout] 104 |     pub fn dependencies(&self) -> Vec<&str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 112 |     pub fn calculate_hash(&mut self, context_hash: u64, deps_hash: u64) -> u64 {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Resolving`, `Blocked`, `Building`, and `Done` are never constructed
[INFO] [stdout]    --> src/core.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | pub enum TaskStatus {
[INFO] [stdout]     |          ---------- variants in this enum
[INFO] [stdout] 157 |     Resolving,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 158 |     Blocked,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 159 |     Building,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 160 |     Done,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TaskStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `failure_stage`, and `status` are never used
[INFO] [stdout]    --> src/core.rs:164:12
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl Task {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 164 |     pub fn new(id: usize, target: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 176 |     pub fn failure_stage(&self) -> TaskStatus {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 183 |     pub fn status(&self) -> TaskStatus {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `can_resolve` and `resolve` are never used
[INFO] [stdout]    --> src/core.rs:205:8
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub trait ResolverPlugin: std::fmt::Debug {
[INFO] [stdout]     |           -------------- methods in this trait
[INFO] [stdout] 205 |     fn can_resolve(&self, target: &str) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 206 |     fn resolve(&self, context: Context, target: &str) -> std::io::Result<Config>;
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `build` is never used
[INFO] [stdout]    --> src/core.rs:210:8
[INFO] [stdout]     |
[INFO] [stdout] 209 | pub trait BuildPlugin: std::fmt::Debug {
[INFO] [stdout]     |           ----------- method in this trait
[INFO] [stdout] 210 |     fn build(
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new` and `with_configs` are never used
[INFO] [stdout]    --> src/core.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl FakeResolver {
[INFO] [stdout]     | ----------------- associated functions in this implementation
[INFO] [stdout] 238 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 244 |     pub fn with_configs(configs: Vec<(&str, std::io::Result<Config>)>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Executor` is never constructed
[INFO] [stdout]  --> src/exec.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Executor {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Executor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskGraph` is never constructed
[INFO] [stdout]   --> src/exec.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct TaskGraph {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TaskGraph` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/exec.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Executor {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 25  |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38  |     pub fn with_config<T: IntoIterator<Item = (BuildConfigKey, String)>>(config: T) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 50  |     pub fn add_task<T: Into<String>>(&self, target: T, rdep: Option<usize>) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62  |     pub fn next_task(&self) -> Option<Task> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 79  |     pub fn run(&self, roots: &[usize]) -> BuildResult {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 118 |     pub fn resolve(&self, task: Task) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     pub fn build(&self, mut task: Task) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 246 |     pub fn mark_task_failure(&self, id: usize, result: BuildResult) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 271 |     pub fn print_all_logs(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub fn mark_build_success(&self, id: usize, result: BuildResult, hash: u64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_task`, `mark_task_failure`, and `mark_build_success` are never used
[INFO] [stdout]    --> src/exec.rs:289:12
[INFO] [stdout]     |
[INFO] [stdout] 288 | impl TaskGraph {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] 289 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 297 |     pub fn add_task<T: Into<String>>(&mut self, target: T, rdep: Option<usize>) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 319 |     pub fn mark_task_failure(&mut self, id: usize, root_cause: usize, result: BuildResult) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 334 |     pub fn mark_build_success(&mut self, id: usize, result: BuildResult, hash: u64) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_plugin` is never used
[INFO] [stdout]    --> src/exec.rs:346:4
[INFO] [stdout]     |
[INFO] [stdout] 346 | fn load_plugin(path: &std::path::Path) -> Arc<dyn BuildPlugin> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `scratch_dir` is never used
[INFO] [stdout]   --> src/context.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Context {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn scratch_dir(&self) -> std::path::PathBuf {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_time` is never read
[INFO] [stdout]  --> src/core.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Context {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 8 |     pub start_time: std::time::Instant,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Context` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/core.rs:238:12
[INFO] [stdout]     |
[INFO] [stdout] 237 | impl FakeResolver {
[INFO] [stdout]     | ----------------- associated function in this implementation
[INFO] [stdout] 238 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `print_all_logs` is never used
[INFO] [stdout]    --> src/exec.rs:271:12
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Executor {
[INFO] [stdout]     | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 271 |     pub fn print_all_logs(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.84s
[INFO] running `Command { std: "docker" "inspect" "7b123e674dfcc18b3fb061372dc6ce3e970421d7a646402b579a206c5fd83516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b123e674dfcc18b3fb061372dc6ce3e970421d7a646402b579a206c5fd83516", kill_on_drop: false }`
[INFO] [stdout] 7b123e674dfcc18b3fb061372dc6ce3e970421d7a646402b579a206c5fd83516
