[INFO] fetching crate tacho 0.4.2...
[INFO] checking tacho-0.4.2 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate tacho 0.4.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tacho 0.4.2
[INFO] finished tweaking crates.io crate tacho 0.4.2
[INFO] tweaked toml for crates.io crate tacho 0.4.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tacho 0.4.2 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 86 packages to latest compatible versions
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.32)
[INFO] [stderr]       Adding hdrsample v3.0.0 (available: v6.0.4)
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.29)
[INFO] [stderr]       Adding ordermap v0.2.13 (available: v1.2.0)
[INFO] [stderr]       Adding pretty_env_logger v0.1.1 (available: v0.5.0)
[INFO] [stderr]       Adding tokio-timer v0.1.2 (available: v0.2.13)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e03c16fc23f643e7c5adadfedff128e9c5cdf9c31953e65f1d1ec7768c3e3d8a
[INFO] running `Command { std: "docker" "start" "-a" "e03c16fc23f643e7c5adadfedff128e9c5cdf9c31953e65f1d1ec7768c3e3d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e03c16fc23f643e7c5adadfedff128e9c5cdf9c31953e65f1d1ec7768c3e3d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e03c16fc23f643e7c5adadfedff128e9c5cdf9c31953e65f1d1ec7768c3e3d8a", kill_on_drop: false }`
[INFO] [stdout] e03c16fc23f643e7c5adadfedff128e9c5cdf9c31953e65f1d1ec7768c3e3d8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d04e7f9395f8b4e27bd799c71df199e2c073c1bdedc7025d072911806fe15d8d
[INFO] running `Command { std: "docker" "start" "-a" "d04e7f9395f8b4e27bd799c71df199e2c073c1bdedc7025d072911806fe15d8d", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking ordermap v0.2.13
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking pretty_env_logger v0.1.1
[INFO] [stderr]     Checking num v0.1.43
[INFO] [stderr]     Checking hdrsample v3.0.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tokio-timer v0.1.2
[INFO] [stderr]     Checking tacho v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:386:33
[INFO] [stdout]     |
[INFO] [stdout] 386 | pub struct Timed<F: Future>(Box<Future<Item = F::Item, Error = F::Error>>);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 386 | pub struct Timed<F: Future>(Box<dyn Future<Item = F::Item, Error = F::Error>>);
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/timing.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Timing {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl dyn Timing {
[INFO] [stdout]   |      +++
[INFO] [stdout] help: you might have intended to implement this trait for a given type
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Timing for /* Type */ {
[INFO] [stdout]   |             ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:369:22
[INFO] [stdout]     |
[INFO] [stdout] 369 |             let t0 = Timing::start();
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 369 |             let t0 = <dyn Timing>::start();
[INFO] [stdout]     |                      ++++       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bounds` is never read
[INFO] [stdout]    --> src/lib.rs:324:5
[INFO] [stdout]     |
[INFO] [stdout] 322 | pub struct Stat {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 323 |     histo: Weak<Mutex<HistogramWithSum>>,
[INFO] [stdout] 324 |     bounds: Option<(u64, u64)>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Stat` has a derived impl for the trait `Clone`, 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]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stdout] warning: use of deprecated type alias `futures::future::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]   --> examples/multithread.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 | use futures::{BoxFuture, Future, Stream};
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::future::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]   --> examples/multithread.rs:65:75
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn reporter<D>(interval: Duration, done: D, reporter: tacho::Reporter) -> BoxFuture<(), ()>
[INFO] [stdout]    |                                                                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `futures::future::BoxFuture`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]   --> examples/simple.rs:33:46
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn do_work(metrics: tacho::Scope) -> future::BoxFuture<(), ()> {
[INFO] [stdout]    |                                              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/multithread.rs:44:26
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let t0 = Timing::start();
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 let t0 = <dyn Timing>::start();
[INFO] [stdout]    |                          ++++       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let start = Timing::start();
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let start = <dyn Timing>::start();
[INFO] [stdout]    |                     ++++       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:386:33
[INFO] [stdout]     |
[INFO] [stdout] 386 | pub struct Timed<F: Future>(Box<Future<Item = F::Item, Error = F::Error>>);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 386 | pub struct Timed<F: Future>(Box<dyn Future<Item = F::Item, Error = F::Error>>);
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]   --> examples/multithread.rs:80:55
[INFO] [stdout]    |
[INFO] [stdout] 80 |     periodic.select(done).map(|_| {}).map_err(|_| {}).boxed()
[INFO] [stdout]    |                                                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `futures::Future::boxed`: removed without replacement, recommended to use a local extension trait or function if needed, more details in https://github.com/rust-lang-nursery/futures-rs/issues/228
[INFO] [stdout]   --> examples/simple.rs:52:22
[INFO] [stdout]    |
[INFO] [stdout] 52 |     work.map(|_| {}).boxed()
[INFO] [stdout]    |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/timing.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Timing {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl dyn Timing {
[INFO] [stdout]   |      +++
[INFO] [stdout] help: you might have intended to implement this trait for a given type
[INFO] [stdout]   |
[INFO] [stdout] 8 | impl Timing for /* Type */ {
[INFO] [stdout]   |             ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:369:22
[INFO] [stdout]     |
[INFO] [stdout] 369 |             let t0 = Timing::start();
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 369 |             let t0 = <dyn Timing>::start();
[INFO] [stdout]     |                      ++++       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bounds` is never read
[INFO] [stdout]    --> src/lib.rs:324:5
[INFO] [stdout]     |
[INFO] [stdout] 322 | pub struct Stat {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] 323 |     histo: Weak<Mutex<HistogramWithSum>>,
[INFO] [stdout] 324 |     bounds: Option<(u64, u64)>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Stat` has a derived impl for the trait `Clone`, 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 9.51s
[INFO] running `Command { std: "docker" "inspect" "d04e7f9395f8b4e27bd799c71df199e2c073c1bdedc7025d072911806fe15d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04e7f9395f8b4e27bd799c71df199e2c073c1bdedc7025d072911806fe15d8d", kill_on_drop: false }`
[INFO] [stdout] d04e7f9395f8b4e27bd799c71df199e2c073c1bdedc7025d072911806fe15d8d
