[INFO] fetching crate roundabout 0.2.0...
[INFO] building roundabout-0.2.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate roundabout 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate roundabout 0.2.0
[INFO] finished tweaking crates.io crate roundabout 0.2.0
[INFO] tweaked toml for crates.io crate roundabout 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate roundabout 0.2.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate roundabout 0.2.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.9
[INFO] [stderr]   Downloaded indexmap v1.6.2
[INFO] [stderr]   Downloaded ctrlc v3.1.9
[INFO] [stderr]   Downloaded half v1.7.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.0
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded serde_cbor v0.11.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.74
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.74
[INFO] [stderr]   Downloaded plotters-backend v0.3.0
[INFO] [stderr]   Downloaded ahash v0.7.4
[INFO] [stderr]   Downloaded cast v0.2.6
[INFO] [stderr]   Downloaded criterion v0.3.4
[INFO] [stderr]   Downloaded criterion-plot v0.4.3
[INFO] [stderr]   Downloaded syn v1.0.73
[INFO] [stderr]   Downloaded plotters-svg v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.74
[INFO] [stderr]   Downloaded web-sys v0.3.51
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.74
[INFO] [stderr]   Downloaded bumpalo v3.7.0
[INFO] [stderr]   Downloaded js-sys v0.3.51
[INFO] [stderr]   Downloaded itertools v0.10.1
[INFO] [stderr]   Downloaded plotters v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa70b4758e22d15579d7ac43b5914938015715a0404dddbdc1222efc8765ea2
[INFO] running `Command { std: "docker" "start" "-a" "bfa70b4758e22d15579d7ac43b5914938015715a0404dddbdc1222efc8765ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa70b4758e22d15579d7ac43b5914938015715a0404dddbdc1222efc8765ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa70b4758e22d15579d7ac43b5914938015715a0404dddbdc1222efc8765ea2", kill_on_drop: false }`
[INFO] [stdout] bfa70b4758e22d15579d7ac43b5914938015715a0404dddbdc1222efc8765ea2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a2abca6764b71023f748bbcc27bf7be0cb8f59ebd4ca190a8c07c5e670c396d
[INFO] running `Command { std: "docker" "start" "-a" "9a2abca6764b71023f748bbcc27bf7be0cb8f59ebd4ca190a8c07c5e670c396d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling core_affinity v0.5.10
[INFO] [stderr]    Compiling roundabout v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type alias `HashSet` is never used
[INFO] [stdout]  --> src/util.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type HashSet<T> = std::collections::HashSet<T, ahash::RandomState>;
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexMap` is never used
[INFO] [stdout]  --> src/util.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type IndexMap<K, T> = indexmap::map::IndexMap<K, T, ahash::RandomState>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_fn` is never used
[INFO] [stdout]   --> src/util/triple.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Send> TripleBuffered<T> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn new_fn<F: Fn() -> T>(factory: F) -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_default` is never used
[INFO] [stdout]   --> src/util/triple.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl<T: Send + Default> TripleBuffered<T> {
[INFO] [stdout]    | ----------------------------------------- associated function in this implementation
[INFO] [stdout] 48 |     #[inline]
[INFO] [stdout] 49 |     pub fn new_default() -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_clone` is never used
[INFO] [stdout]   --> src/util/triple.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl<T: Send + Clone> TripleBuffered<T> {
[INFO] [stdout]    | --------------------------------------- associated function in this implementation
[INFO] [stdout] 55 |     #[inline]
[INFO] [stdout] 56 |     pub fn new_clone(initial: T) -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn recv(&mut self) -> MessageBusView {
[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] 178 |     pub fn recv(&mut self) -> MessageBusView<'_> {
[INFO] [stdout]     |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn try_recv(&mut self) -> Option<MessageBusView> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn try_recv(&mut self) -> Option<MessageBusView<'_>> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     unsafe fn recv_unchecked(&mut self) -> MessageBusView {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 213 |     unsafe fn recv_unchecked(&mut self) -> MessageBusView<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/message/vec.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn iter(&self) -> MessageVecIter {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn iter(&self) -> MessageVecIter<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/schedule.rs:321:17
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub fn recv(&mut self) -> anyhow::Result<MessageBusView> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub fn recv(&mut self) -> anyhow::Result<MessageBusView<'_>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/schedule.rs:333:21
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn try_recv(&mut self) -> anyhow::Result<Option<MessageBusView>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn try_recv(&mut self) -> anyhow::Result<Option<MessageBusView<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/util/triple.rs:67:20
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn advance(&self) -> MutexGuard<RawMutex, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn advance(&self) -> MutexGuard<'_, RawMutex, T> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/util/triple.rs:79:18
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self) -> MutexGuard<RawMutex, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self) -> MutexGuard<'_, RawMutex, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.16s
[INFO] running `Command { std: "docker" "inspect" "9a2abca6764b71023f748bbcc27bf7be0cb8f59ebd4ca190a8c07c5e670c396d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a2abca6764b71023f748bbcc27bf7be0cb8f59ebd4ca190a8c07c5e670c396d", kill_on_drop: false }`
[INFO] [stdout] 9a2abca6764b71023f748bbcc27bf7be0cb8f59ebd4ca190a8c07c5e670c396d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44a3b9b1349ecb972311b34dc6fbb05b9a15fa331de2ed9a18da15651637e5d7
[INFO] running `Command { std: "docker" "start" "-a" "44a3b9b1349ecb972311b34dc6fbb05b9a15fa331de2ed9a18da15651637e5d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stdout] warning: type alias `HashSet` is never used
[INFO] [stdout]  --> src/util.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type HashSet<T> = std::collections::HashSet<T, ahash::RandomState>;
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexMap` is never used
[INFO] [stdout]  --> src/util.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type IndexMap<K, T> = indexmap::map::IndexMap<K, T, ahash::RandomState>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_fn` is never used
[INFO] [stdout]   --> src/util/triple.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Send> TripleBuffered<T> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn new_fn<F: Fn() -> T>(factory: F) -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_default` is never used
[INFO] [stdout]   --> src/util/triple.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl<T: Send + Default> TripleBuffered<T> {
[INFO] [stdout]    | ----------------------------------------- associated function in this implementation
[INFO] [stdout] 48 |     #[inline]
[INFO] [stdout] 49 |     pub fn new_default() -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_clone` is never used
[INFO] [stdout]   --> src/util/triple.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl<T: Send + Clone> TripleBuffered<T> {
[INFO] [stdout]    | --------------------------------------- associated function in this implementation
[INFO] [stdout] 55 |     #[inline]
[INFO] [stdout] 56 |     pub fn new_clone(initial: T) -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn recv(&mut self) -> MessageBusView {
[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] 178 |     pub fn recv(&mut self) -> MessageBusView<'_> {
[INFO] [stdout]     |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn try_recv(&mut self) -> Option<MessageBusView> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn try_recv(&mut self) -> Option<MessageBusView<'_>> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     unsafe fn recv_unchecked(&mut self) -> MessageBusView {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 213 |     unsafe fn recv_unchecked(&mut self) -> MessageBusView<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/message/vec.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn iter(&self) -> MessageVecIter {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn iter(&self) -> MessageVecIter<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/schedule.rs:321:17
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub fn recv(&mut self) -> anyhow::Result<MessageBusView> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub fn recv(&mut self) -> anyhow::Result<MessageBusView<'_>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/schedule.rs:333:21
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn try_recv(&mut self) -> anyhow::Result<Option<MessageBusView>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn try_recv(&mut self) -> anyhow::Result<Option<MessageBusView<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/util/triple.rs:67:20
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn advance(&self) -> MutexGuard<RawMutex, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn advance(&self) -> MutexGuard<'_, RawMutex, T> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/util/triple.rs:79:18
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self) -> MutexGuard<RawMutex, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self) -> MutexGuard<'_, RawMutex, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling cast v0.2.6
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling ctrlc v3.1.9
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion v0.3.4
[INFO] [stderr]    Compiling roundabout v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> examples/ping_pong_sequential.rs:4:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct PingEvent(u64);
[INFO] [stdout]   |            --------- ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `PingEvent` 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 `0` is never read
[INFO] [stdout]  --> examples/ping_pong_sequential.rs:7:22
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct PongEvent(u64);
[INFO] [stdout]   |            --------- ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `PongEvent` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `HashSet` is never used
[INFO] [stdout]  --> src/util.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type HashSet<T> = std::collections::HashSet<T, ahash::RandomState>;
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `IndexMap` is never used
[INFO] [stdout]  --> src/util.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type IndexMap<K, T> = indexmap::map::IndexMap<K, T, ahash::RandomState>;
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_fn` is never used
[INFO] [stdout]   --> src/util/triple.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Send> TripleBuffered<T> {
[INFO] [stdout]    | ------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn new_fn<F: Fn() -> T>(factory: F) -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_default` is never used
[INFO] [stdout]   --> src/util/triple.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 47 | impl<T: Send + Default> TripleBuffered<T> {
[INFO] [stdout]    | ----------------------------------------- associated function in this implementation
[INFO] [stdout] 48 |     #[inline]
[INFO] [stdout] 49 |     pub fn new_default() -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new_clone` is never used
[INFO] [stdout]   --> src/util/triple.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 54 | impl<T: Send + Clone> TripleBuffered<T> {
[INFO] [stdout]    | --------------------------------------- associated function in this implementation
[INFO] [stdout] 55 |     #[inline]
[INFO] [stdout] 56 |     pub fn new_clone(initial: T) -> (TripleBufferedHead<T>, TripleBufferedTail<T>) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:178:17
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn recv(&mut self) -> MessageBusView {
[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] 178 |     pub fn recv(&mut self) -> MessageBusView<'_> {
[INFO] [stdout]     |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:198:21
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn try_recv(&mut self) -> Option<MessageBusView> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn try_recv(&mut self) -> Option<MessageBusView<'_>> {
[INFO] [stdout]     |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/message/bus.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     unsafe fn recv_unchecked(&mut self) -> MessageBusView {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 213 |     unsafe fn recv_unchecked(&mut self) -> MessageBusView<'_> {
[INFO] [stdout]     |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/message/vec.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn iter(&self) -> MessageVecIter {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn iter(&self) -> MessageVecIter<'_> {
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/schedule.rs:321:17
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub fn recv(&mut self) -> anyhow::Result<MessageBusView> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 321 |     pub fn recv(&mut self) -> anyhow::Result<MessageBusView<'_>> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/schedule.rs:333:21
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn try_recv(&mut self) -> anyhow::Result<Option<MessageBusView>> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 333 |     pub fn try_recv(&mut self) -> anyhow::Result<Option<MessageBusView<'_>>> {
[INFO] [stdout]     |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/util/triple.rs:67:20
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn advance(&self) -> MutexGuard<RawMutex, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn advance(&self) -> MutexGuard<'_, RawMutex, T> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/util/triple.rs:79:18
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self) -> MutexGuard<RawMutex, T> {
[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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn write(&self) -> MutexGuard<'_, RawMutex, T> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 28.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "44a3b9b1349ecb972311b34dc6fbb05b9a15fa331de2ed9a18da15651637e5d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a3b9b1349ecb972311b34dc6fbb05b9a15fa331de2ed9a18da15651637e5d7", kill_on_drop: false }`
[INFO] [stdout] 44a3b9b1349ecb972311b34dc6fbb05b9a15fa331de2ed9a18da15651637e5d7
