[INFO] fetching crate broker-tokio 0.2.16...
[INFO] checking broker-tokio-0.2.16 against master#b0696a5160711c068cb1f01b7437db7990d15750 for pr-121848
[INFO] extracting crate broker-tokio 0.2.16 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate broker-tokio 0.2.16 on toolchain b0696a5160711c068cb1f01b7437db7990d15750
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate broker-tokio 0.2.16
[INFO] finished tweaking crates.io crate broker-tokio 0.2.16
[INFO] tweaked toml for crates.io crate broker-tokio 0.2.16 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio-named-pipes v0.1.7
[INFO] [stderr]   Downloaded generator v0.6.25
[INFO] [stderr]   Downloaded scoped-tls v0.1.2
[INFO] [stderr]   Downloaded rusty-fork v0.2.2
[INFO] [stderr]   Downloaded tokio-macros v0.2.6
[INFO] [stderr]   Downloaded proptest v0.9.6
[INFO] [stderr]   Downloaded loom v0.2.15
[INFO] [stderr]   Downloaded tokio-test v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] caf5a95107f817a7418795c27ac6d77740aff818f624e20b70b23967e8b658f6
[INFO] running `Command { std: "docker" "start" "-a" "caf5a95107f817a7418795c27ac6d77740aff818f624e20b70b23967e8b658f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "caf5a95107f817a7418795c27ac6d77740aff818f624e20b70b23967e8b658f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caf5a95107f817a7418795c27ac6d77740aff818f624e20b70b23967e8b658f6", kill_on_drop: false }`
[INFO] [stdout] caf5a95107f817a7418795c27ac6d77740aff818f624e20b70b23967e8b658f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b0696a5160711c068cb1f01b7437db7990d15750" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f52840542b5b3bb6c6be2721a570db0093b8484eeb7f4be4e5c52f69949481ee
[INFO] running `Command { std: "docker" "start" "-a" "f52840542b5b3bb6c6be2721a570db0093b8484eeb7f4be4e5c52f69949481ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking broker-tokio v0.2.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/loom/std/mod.rs:49:44
[INFO] [stdout]    |
[INFO] [stdout] 49 |         pub(crate) use std::sync::atomic::{spin_loop_hint, AtomicBool};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]   --> src/park/mod.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) trait Park {
[INFO] [stdout]    |                  ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn park_timeout(&mut self, duration: Duration) -> Result<(), Self::Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]    --> src/park/thread.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 78  | impl Inner {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn park_timeout(&self, dur: Duration) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocking_pool` is never read
[INFO] [stdout]    --> src/runtime/mod.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub struct Runtime {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 277 |     blocking_pool: BlockingPool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Runtime` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `spawner`, `io_handle`, `time_handle`, `clock`, and `blocking_spawner` are never read
[INFO] [stdout]   --> src/runtime/handle.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Handle {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 13 |     pub(super) spawner: Spawner,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub(super) io_handle: io::Handle,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub(super) time_handle: time::Handle,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub(super) clock: time::Clock,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub(super) blocking_spawner: blocking::Spawner,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Handle` 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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generator v0.6.25
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking loom v0.2.15
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/loom/std/mod.rs:49:44
[INFO] [stdout]    |
[INFO] [stdout] 49 |         pub(crate) use std::sync::atomic::{spin_loop_hint, AtomicBool};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]   --> src/park/mod.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) trait Park {
[INFO] [stdout]    |                  ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn park_timeout(&mut self, duration: Duration) -> Result<(), Self::Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]    --> src/park/thread.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 78  | impl Inner {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn park_timeout(&self, dur: Duration) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocking_pool` is never read
[INFO] [stdout]    --> src/runtime/mod.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub struct Runtime {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 277 |     blocking_pool: BlockingPool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Runtime` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `spawner`, `io_handle`, `time_handle`, `clock`, and `blocking_spawner` are never read
[INFO] [stdout]   --> src/runtime/handle.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Handle {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 13 |     pub(super) spawner: Spawner,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub(super) io_handle: io::Handle,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub(super) time_handle: time::Handle,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub(super) clock: time::Clock,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub(super) blocking_spawner: blocking::Spawner,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Handle` 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: function `backoff` is never used
[INFO] [stdout]  --> src/tests/backoff.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn backoff(n: usize) -> impl Future<Output = ()> {
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `backoff_clone` is never used
[INFO] [stdout]   --> src/tests/backoff.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) fn backoff_clone(n: usize) -> impl Future<Output = ()> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DidDrop` is never constructed
[INFO] [stdout]   --> src/tests/track_drop.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) struct DidDrop(Arc<AtomicBool>, Arc<AtomicBool>);
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DidDrop` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `track_drop` is never used
[INFO] [stdout]   --> src/tests/track_drop.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn track_drop<T: Future>(
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_ref` is never used
[INFO] [stdout]   --> src/tests/track_drop.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T> TrackDrop<T> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 29 |     pub(crate) fn get_ref(&self) -> &T {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `did_drop_future` and `did_drop_output` are never used
[INFO] [stdout]   --> src/tests/track_drop.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl DidDrop {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 50 |     pub(crate) fn did_drop_future(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub(crate) fn did_drop_output(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.19s
[INFO] running `Command { std: "docker" "inspect" "f52840542b5b3bb6c6be2721a570db0093b8484eeb7f4be4e5c52f69949481ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52840542b5b3bb6c6be2721a570db0093b8484eeb7f4be4e5c52f69949481ee", kill_on_drop: false }`
[INFO] [stdout] f52840542b5b3bb6c6be2721a570db0093b8484eeb7f4be4e5c52f69949481ee
[INFO] checking broker-tokio-0.2.16 against try#bfe97fcae016881ad333f0ff8cea2cadb9cf136c for pr-121848
[INFO] extracting crate broker-tokio 0.2.16 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate broker-tokio 0.2.16 on toolchain bfe97fcae016881ad333f0ff8cea2cadb9cf136c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate broker-tokio 0.2.16
[INFO] finished tweaking crates.io crate broker-tokio 0.2.16
[INFO] tweaked toml for crates.io crate broker-tokio 0.2.16 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42f82ad1f2656f325658a8b1ddf7c6fa9089d461477073aa157c95c58325dfd3
[INFO] running `Command { std: "docker" "start" "-a" "42f82ad1f2656f325658a8b1ddf7c6fa9089d461477073aa157c95c58325dfd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42f82ad1f2656f325658a8b1ddf7c6fa9089d461477073aa157c95c58325dfd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f82ad1f2656f325658a8b1ddf7c6fa9089d461477073aa157c95c58325dfd3", kill_on_drop: false }`
[INFO] [stdout] 42f82ad1f2656f325658a8b1ddf7c6fa9089d461477073aa157c95c58325dfd3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+bfe97fcae016881ad333f0ff8cea2cadb9cf136c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf9632d33f26fe9092246e74aefb3e34003a02b6bcf7f82d664451e3b0910105
[INFO] running `Command { std: "docker" "start" "-a" "cf9632d33f26fe9092246e74aefb3e34003a02b6bcf7f82d664451e3b0910105", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking broker-tokio v0.2.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/loom/std/mod.rs:49:44
[INFO] [stdout]    |
[INFO] [stdout] 49 |         pub(crate) use std::sync::atomic::{spin_loop_hint, AtomicBool};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]   --> src/park/mod.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) trait Park {
[INFO] [stdout]    |                  ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn park_timeout(&mut self, duration: Duration) -> Result<(), Self::Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]    --> src/park/thread.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 78  | impl Inner {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn park_timeout(&self, dur: Duration) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocking_pool` is never read
[INFO] [stdout]    --> src/runtime/mod.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub struct Runtime {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 277 |     blocking_pool: BlockingPool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Runtime` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `spawner`, `io_handle`, `time_handle`, `clock`, and `blocking_spawner` are never read
[INFO] [stdout]   --> src/runtime/handle.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Handle {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 13 |     pub(super) spawner: Spawner,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub(super) io_handle: io::Handle,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub(super) time_handle: time::Handle,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub(super) clock: time::Clock,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub(super) blocking_spawner: blocking::Spawner,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Handle` 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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generator v0.6.25
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking serde_json v1.0.114
[INFO] [stderr]     Checking loom v0.2.15
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been removed: use `rustdoc::broken_intra_doc_links` instead
[INFO] [stdout]   --> src/lib.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![deny(intra_doc_link_resolution_failure)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]   --> src/loom/std/mod.rs:49:44
[INFO] [stdout]    |
[INFO] [stdout] 49 |         pub(crate) use std::sync::atomic::{spin_loop_hint, AtomicBool};
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]   --> src/park/mod.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub(crate) trait Park {
[INFO] [stdout]    |                  ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn park_timeout(&mut self, duration: Duration) -> Result<(), Self::Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `park_timeout` is never used
[INFO] [stdout]    --> src/park/thread.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 78  | impl Inner {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn park_timeout(&self, dur: Duration) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `blocking_pool` is never read
[INFO] [stdout]    --> src/runtime/mod.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub struct Runtime {
[INFO] [stdout]     |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 277 |     blocking_pool: BlockingPool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Runtime` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `spawner`, `io_handle`, `time_handle`, `clock`, and `blocking_spawner` are never read
[INFO] [stdout]   --> src/runtime/handle.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Handle {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 13 |     pub(super) spawner: Spawner,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub(super) io_handle: io::Handle,
[INFO] [stdout]    |                ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub(super) time_handle: time::Handle,
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub(super) clock: time::Clock,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub(super) blocking_spawner: blocking::Spawner,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Handle` 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: function `backoff` is never used
[INFO] [stdout]  --> src/tests/backoff.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub(crate) fn backoff(n: usize) -> impl Future<Output = ()> {
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `backoff_clone` is never used
[INFO] [stdout]   --> src/tests/backoff.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) fn backoff_clone(n: usize) -> impl Future<Output = ()> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DidDrop` is never constructed
[INFO] [stdout]   --> src/tests/track_drop.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) struct DidDrop(Arc<AtomicBool>, Arc<AtomicBool>);
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DidDrop` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `track_drop` is never used
[INFO] [stdout]   --> src/tests/track_drop.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) fn track_drop<T: Future>(
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_ref` is never used
[INFO] [stdout]   --> src/tests/track_drop.rs:29:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl<T> TrackDrop<T> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 29 |     pub(crate) fn get_ref(&self) -> &T {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `did_drop_future` and `did_drop_output` are never used
[INFO] [stdout]   --> src/tests/track_drop.rs:50:19
[INFO] [stdout]    |
[INFO] [stdout] 49 | impl DidDrop {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 50 |     pub(crate) fn did_drop_future(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub(crate) fn did_drop_output(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "cf9632d33f26fe9092246e74aefb3e34003a02b6bcf7f82d664451e3b0910105", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf9632d33f26fe9092246e74aefb3e34003a02b6bcf7f82d664451e3b0910105", kill_on_drop: false }`
[INFO] [stdout] cf9632d33f26fe9092246e74aefb3e34003a02b6bcf7f82d664451e3b0910105
