[INFO] cloning repository https://github.com/jdmichaud/integ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jdmichaud/integ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Finteg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Finteg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9aeac2b833f6eb157defb4f3342dc8135af3d64d
[INFO] checking jdmichaud/integ against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjdmichaud%2Finteg" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jdmichaud/integ
[INFO] finished tweaking git repo https://github.com/jdmichaud/integ
[INFO] tweaked toml for git repo https://github.com/jdmichaud/integ written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jdmichaud/integ on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jdmichaud/integ 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.8.17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d45243a40733d57cbb9e332d5d91989711a7a58399a0c8d537cd8a00ab37fd
[INFO] running `Command { std: "docker" "start" "-a" "39d45243a40733d57cbb9e332d5d91989711a7a58399a0c8d537cd8a00ab37fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d45243a40733d57cbb9e332d5d91989711a7a58399a0c8d537cd8a00ab37fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d45243a40733d57cbb9e332d5d91989711a7a58399a0c8d537cd8a00ab37fd", kill_on_drop: false }`
[INFO] [stdout] 39d45243a40733d57cbb9e332d5d91989711a7a58399a0c8d537cd8a00ab37fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45f1ff9c9dd4b8e08f7f05d78a207af78bf9a8bdc3fafe4a179cc35fd305f46f
[INFO] running `Command { std: "docker" "start" "-a" "45f1ff9c9dd4b8e08f7f05d78a207af78bf9a8bdc3fafe4a179cc35fd305f46f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking integ v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `asynchronous` is never used
[INFO] [stdout]   --> examples/git.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn asynchronous() {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Package` is never constructed
[INFO] [stdout]  --> examples/json.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct Package<'a> {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_package` is never used
[INFO] [stdout]   --> examples/json.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn load_package(pjson: &str) -> Package {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> examples/json.rs:12:24
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn load_package(pjson: &str) -> Package {
[INFO] [stdout]    |                        ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn load_package(pjson: &str) -> Package<'_> {
[INFO] [stdout]    |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `all` is never used
[INFO] [stdout]  --> examples/arr-to-res.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn all<T, E>(results: Vec<Result<T, E>>) -> Result<Vec<T>, E> {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Observer` is never constructed
[INFO] [stdout]  --> examples/observable.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Observer<T, E> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `error` is never read
[INFO] [stdout]   --> examples/observable.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct FullObserver<T, E> {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     error: Box<dyn Fn(E)>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `subscribe_observer` is never used
[INFO] [stdout]   --> examples/observable.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | impl<T, E> Observable<T, E> {
[INFO] [stdout]    | --------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn subscribe_observer(&self, observer: Observer<T, E>) -> Subscription {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Repo` is never constructed
[INFO] [stdout]  --> examples/yaml.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Repo {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]   --> examples/yaml.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Config {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_config` is never used
[INFO] [stdout]   --> examples/yaml.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn load_config(config_yaml: &str) -> Config {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Config {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |     workers: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `package` is never read
[INFO] [stdout]    --> src/main.rs:356:5
[INFO] [stdout]     |
[INFO] [stdout] 354 | struct Project<'a> {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 355 |     name: String,
[INFO] [stdout] 356 |     package: &'a Package,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Project` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:459:45
[INFO] [stdout]     |
[INFO] [stdout] 459 |         .filter(|line| PathBuf::from(line[1].clone()).exists())
[INFO] [stdout]     |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `workers` is never read
[INFO] [stdout]   --> src/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | struct Config {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 53 |     workers: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.20s
[INFO] [stdout] warning: field `package` is never read
[INFO] [stdout]    --> src/main.rs:356:5
[INFO] [stdout]     |
[INFO] [stdout] 354 | struct Project<'a> {
[INFO] [stdout]     |        ------- field in this struct
[INFO] [stdout] 355 |     name: String,
[INFO] [stdout] 356 |     package: &'a Package,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Project` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:459:45
[INFO] [stdout]     |
[INFO] [stdout] 459 |         .filter(|line| PathBuf::from(line[1].clone()).exists())
[INFO] [stdout]     |                                             ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45f1ff9c9dd4b8e08f7f05d78a207af78bf9a8bdc3fafe4a179cc35fd305f46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f1ff9c9dd4b8e08f7f05d78a207af78bf9a8bdc3fafe4a179cc35fd305f46f", kill_on_drop: false }`
[INFO] [stdout] 45f1ff9c9dd4b8e08f7f05d78a207af78bf9a8bdc3fafe4a179cc35fd305f46f
