[INFO] fetching crate cargo-anneal 0.1.0-alpha.22...
[INFO] checking cargo-anneal-0.1.0-alpha.22 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate cargo-anneal 0.1.0-alpha.22 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cargo-anneal 0.1.0-alpha.22
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cargo-anneal 0.1.0-alpha.22
[INFO] tweaked toml for crates.io crate cargo-anneal 0.1.0-alpha.22 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-anneal 0.1.0-alpha.22 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cargo-anneal 0.1.0-alpha.22 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9eba38f492934e5c28445480e13849f5608fa76b85e21527e4e25fe943a7329f
[INFO] running `Command { std: "docker" "start" "-a" "9eba38f492934e5c28445480e13849f5608fa76b85e21527e4e25fe943a7329f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eba38f492934e5c28445480e13849f5608fa76b85e21527e4e25fe943a7329f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eba38f492934e5c28445480e13849f5608fa76b85e21527e4e25fe943a7329f", kill_on_drop: false }`
[INFO] [stdout] 9eba38f492934e5c28445480e13849f5608fa76b85e21527e4e25fe943a7329f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 541750a13d8a6ef52882fb6bc0f2324264eaf4e8542658574059e0ad1b190545
[INFO] running `Command { std: "docker" "start" "-a" "541750a13d8a6ef52882fb6bc0f2324264eaf4e8542658574059e0ad1b190545", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cargo-anneal v0.1.0-alpha.22 (/opt/rustwide/workdir)
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[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> examples/positive_usize.rs:28:29
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub unsafe fn unchecked_div(a: usize, b: usize) -> usize {
[INFO] [stdout]    |                             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> examples/positive_usize.rs:28:39
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub unsafe fn unchecked_div(a: usize, b: usize) -> usize {
[INFO] [stdout]    |                                       ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div_positive` is never used
[INFO] [stdout]   --> examples/positive_usize.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn div_positive(self_val: usize, rhs: PositiveUsize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Even` is never constructed
[INFO] [stdout]   --> examples/design_doc.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Even {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-anneal` (example "design_doc") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused imports: `cmp`, `thread`, and `time::Duration`
[INFO] [stdout]  --> tests/integration.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     cmp, fs, io,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 7 |     thread,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 8 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs2::FileExt`
[INFO] [stdout]   --> tests/integration.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use fs2::FileExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toolchain_path`
[INFO] [stdout]    --> tests/integration.rs:254:13
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let toolchain_path = get_toolchain_path();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_toolchain_path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `test_config` is never read
[INFO] [stdout]    --> tests/integration.rs:241:5
[INFO] [stdout]     |
[INFO] [stdout] 236 | struct TestContext {
[INFO] [stdout]     |        ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 241 |     test_config: TestConfig,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `tempfile::TempDir::into_path`: use TempDir::keep()
[INFO] [stdout]     --> src/setup.rs:1052:29
[INFO] [stdout]      |
[INFO] [stdout] 1052 |     let tmp_path = temp_dir.into_path();
[INFO] [stdout]      |                             ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toolchain`
[INFO] [stdout]    --> src/setup.rs:579:25
[INFO] [stdout]     |
[INFO] [stdout] 579 | fn setup_rust_toolchain(toolchain: &Toolchain, platform: Platform, tmp_root: &Path) -> Result<()> {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_toolchain`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CharonDriver` is never constructed
[INFO] [stdout]   --> src/setup.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum Tool {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 60 |     Charon,
[INFO] [stdout] 61 |     CharonDriver,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tool` has derived impls for the traits `Clone` and `Debug`, but these are 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: function `calculate_file_hash` is never used
[INFO] [stdout]    --> src/setup.rs:348:4
[INFO] [stdout]     |
[INFO] [stdout] 348 | fn calculate_file_hash(path: &Path) -> Result<[u8; 32]> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AENEAS_TOOLS` is never used
[INFO] [stdout]    --> src/setup.rs:441:7
[INFO] [stdout]     |
[INFO] [stdout] 441 | const AENEAS_TOOLS: &[Tool] = &[Tool::Aeneas, Tool::Charon, Tool::CharonDriver];
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RUST_TOOLS` is never used
[INFO] [stdout]    --> src/setup.rs:442:7
[INFO] [stdout]     |
[INFO] [stdout] 442 | const RUST_TOOLS: &[Tool] =
[INFO] [stdout]     |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_manifest_revs` is never used
[INFO] [stdout]    --> src/setup.rs:512:4
[INFO] [stdout]     |
[INFO] [stdout] 512 | fn read_manifest_revs(manifest_path: &Path) -> Result<std::collections::HashMap<String, String>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_manifest_urls` is never used
[INFO] [stdout]    --> src/setup.rs:542:4
[INFO] [stdout]     |
[INFO] [stdout] 542 | fn update_manifest_urls(manifest_path: &Path, base_path: &Path) -> Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `tempfile::TempDir::into_path`: use TempDir::keep()
[INFO] [stdout]     --> src/setup.rs:1052:29
[INFO] [stdout]      |
[INFO] [stdout] 1052 |     let tmp_path = temp_dir.into_path();
[INFO] [stdout]      |                             ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `toolchain`
[INFO] [stdout]    --> src/setup.rs:579:25
[INFO] [stdout]     |
[INFO] [stdout] 579 | fn setup_rust_toolchain(toolchain: &Toolchain, platform: Platform, tmp_root: &Path) -> Result<()> {
[INFO] [stdout]     |                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_toolchain`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `CharonDriver` is never constructed
[INFO] [stdout]   --> src/setup.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub enum Tool {
[INFO] [stdout]    |          ---- variant in this enum
[INFO] [stdout] 60 |     Charon,
[INFO] [stdout] 61 |     CharonDriver,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Tool` has derived impls for the traits `Clone` and `Debug`, but these are 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: function `calculate_file_hash` is never used
[INFO] [stdout]    --> src/setup.rs:348:4
[INFO] [stdout]     |
[INFO] [stdout] 348 | fn calculate_file_hash(path: &Path) -> Result<[u8; 32]> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AENEAS_TOOLS` is never used
[INFO] [stdout]    --> src/setup.rs:441:7
[INFO] [stdout]     |
[INFO] [stdout] 441 | const AENEAS_TOOLS: &[Tool] = &[Tool::Aeneas, Tool::Charon, Tool::CharonDriver];
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RUST_TOOLS` is never used
[INFO] [stdout]    --> src/setup.rs:442:7
[INFO] [stdout]     |
[INFO] [stdout] 442 | const RUST_TOOLS: &[Tool] =
[INFO] [stdout]     |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_manifest_revs` is never used
[INFO] [stdout]    --> src/setup.rs:512:4
[INFO] [stdout]     |
[INFO] [stdout] 512 | fn read_manifest_revs(manifest_path: &Path) -> Result<std::collections::HashMap<String, String>> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `update_manifest_urls` is never used
[INFO] [stdout]    --> src/setup.rs:542:4
[INFO] [stdout]     |
[INFO] [stdout] 542 | fn update_manifest_urls(manifest_path: &Path, base_path: &Path) -> Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "541750a13d8a6ef52882fb6bc0f2324264eaf4e8542658574059e0ad1b190545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541750a13d8a6ef52882fb6bc0f2324264eaf4e8542658574059e0ad1b190545", kill_on_drop: false }`
[INFO] [stdout] 541750a13d8a6ef52882fb6bc0f2324264eaf4e8542658574059e0ad1b190545
