[INFO] fetching crate hornet 0.1.0...
[INFO] testing hornet-0.1.0 against try#61cd42370816fd135c0f3b9debf2f5dfcf194594 for pr-98839
[INFO] extracting crate hornet 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hornet 0.1.0 on toolchain 61cd42370816fd135c0f3b9debf2f5dfcf194594
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hornet 0.1.0
[INFO] finished tweaking crates.io crate hornet 0.1.0
[INFO] tweaked toml for crates.io crate hornet 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b571fab34cd3dd0d84b174b4368a5563435552ad97b92ffeb582c350219c2d24
[INFO] running `Command { std: "docker" "start" "-a" "b571fab34cd3dd0d84b174b4368a5563435552ad97b92ffeb582c350219c2d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b571fab34cd3dd0d84b174b4368a5563435552ad97b92ffeb582c350219c2d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b571fab34cd3dd0d84b174b4368a5563435552ad97b92ffeb582c350219c2d24", kill_on_drop: false }`
[INFO] [stdout] b571fab34cd3dd0d84b174b4368a5563435552ad97b92ffeb582c350219c2d24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fa789b10a0942ff411d335d92159317ec75e0e7461a4361b2e6fae9463b343e
[INFO] running `Command { std: "docker" "start" "-a" "7fa789b10a0942ff411d335d92159317ec75e0e7461a4361b2e6fae9463b343e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-util v0.1.9
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling memmap v0.5.2
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling hdrsample v4.0.0
[INFO] [stderr]    Compiling hornet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]   --> src/client/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use nix;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:9:14
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[cfg(unix)] extern crate nix;
[INFO] [stdout]    |              ----------------- the item `nix` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/client/mod.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     lazy_static! {
[INFO] [stdout] 93 | |         static ref RE: Regex =
[INFO] [stdout] 94 | |             Regex::new("(?-u)^(PCP_[[:alnum:]_]+)=([^\"\'].*[^\"\'])\n$")
[INFO] [stdout] 95 | |                 .unwrap();
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/client/metric/mod.rs:539:1
[INFO] [stdout]     |
[INFO] [stdout] 539 | / lazy_static! {
[INFO] [stdout] 540 | |     static ref SCRATCH_VIEW: MmapViewSync = {
[INFO] [stdout] 541 | |         Mmap::anonymous(STRING_BLOCK_LEN as usize, Protection::ReadWrite).unwrap()
[INFO] [stdout] 542 | |             .into_view_sync()
[INFO] [stdout] 543 | |     };
[INFO] [stdout] 544 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client/mod.rs:226:46
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 -     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stdout] 226 +     pub fn export(&self, metrics: &mut [&mut dyn MMVWriter]) -> io::Result<()> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.39s
[INFO] running `Command { std: "docker" "inspect" "7fa789b10a0942ff411d335d92159317ec75e0e7461a4361b2e6fae9463b343e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa789b10a0942ff411d335d92159317ec75e0e7461a4361b2e6fae9463b343e", kill_on_drop: false }`
[INFO] [stdout] 7fa789b10a0942ff411d335d92159317ec75e0e7461a4361b2e6fae9463b343e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 784ab08197fde9f2fa72e811f87cad86415c9fdc0b2f9d50b02a5625e623073e
[INFO] running `Command { std: "docker" "start" "-a" "784ab08197fde9f2fa72e811f87cad86415c9fdc0b2f9d50b02a5625e623073e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]   --> src/client/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use nix;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:9:14
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[cfg(unix)] extern crate nix;
[INFO] [stdout]    |              ----------------- the item `nix` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/client/mod.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     lazy_static! {
[INFO] [stdout] 93 | |         static ref RE: Regex =
[INFO] [stdout] 94 | |             Regex::new("(?-u)^(PCP_[[:alnum:]_]+)=([^\"\'].*[^\"\'])\n$")
[INFO] [stdout] 95 | |                 .unwrap();
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/client/metric/mod.rs:539:1
[INFO] [stdout]     |
[INFO] [stdout] 539 | / lazy_static! {
[INFO] [stdout] 540 | |     static ref SCRATCH_VIEW: MmapViewSync = {
[INFO] [stdout] 541 | |         Mmap::anonymous(STRING_BLOCK_LEN as usize, Protection::ReadWrite).unwrap()
[INFO] [stdout] 542 | |             .into_view_sync()
[INFO] [stdout] 543 | |     };
[INFO] [stdout] 544 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client/mod.rs:226:46
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 -     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stdout] 226 +     pub fn export(&self, metrics: &mut [&mut dyn MMVWriter]) -> io::Result<()> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hornet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]   --> src/client/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use nix;
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:9:14
[INFO] [stdout]    |
[INFO] [stdout] 9  | #[cfg(unix)] extern crate nix;
[INFO] [stdout]    |              ----------------- the item `nix` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/client/mod.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / bitflags! {
[INFO] [stdout] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stdout] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stdout] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |     }
[INFO] [stdout] 158 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/client/mod.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     lazy_static! {
[INFO] [stdout] 93 | |         static ref RE: Regex =
[INFO] [stdout] 94 | |             Regex::new("(?-u)^(PCP_[[:alnum:]_]+)=([^\"\'].*[^\"\'])\n$")
[INFO] [stdout] 95 | |                 .unwrap();
[INFO] [stdout] 96 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/client/metric/mod.rs:539:1
[INFO] [stdout]     |
[INFO] [stdout] 539 | / lazy_static! {
[INFO] [stdout] 540 | |     static ref SCRATCH_VIEW: MmapViewSync = {
[INFO] [stdout] 541 | |         Mmap::anonymous(STRING_BLOCK_LEN as usize, Protection::ReadWrite).unwrap()
[INFO] [stdout] 542 | |             .into_view_sync()
[INFO] [stdout] 543 | |     };
[INFO] [stdout] 544 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/client/mod.rs:226:46
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 226 -     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stdout] 226 +     pub fn export(&self, metrics: &mut [&mut dyn MMVWriter]) -> io::Result<()> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/client/metric/mod.rs:1355:39
[INFO] [stdout]      |
[INFO] [stdout] 1355 |         let mut mmv_writers: Vec<&mut MMVWriter> = metrics.iter_mut()
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1355 -         let mut mmv_writers: Vec<&mut MMVWriter> = metrics.iter_mut()
[INFO] [stdout] 1355 +         let mut mmv_writers: Vec<&mut dyn MMVWriter> = metrics.iter_mut()
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/client/metric/mod.rs:1356:32
[INFO] [stdout]      |
[INFO] [stdout] 1356 |             .map(|m| m as &mut MMVWriter)
[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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1356 -             .map(|m| m as &mut MMVWriter)
[INFO] [stdout] 1356 +             .map(|m| m as &mut dyn MMVWriter)
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "784ab08197fde9f2fa72e811f87cad86415c9fdc0b2f9d50b02a5625e623073e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "784ab08197fde9f2fa72e811f87cad86415c9fdc0b2f9d50b02a5625e623073e", kill_on_drop: false }`
[INFO] [stdout] 784ab08197fde9f2fa72e811f87cad86415c9fdc0b2f9d50b02a5625e623073e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+61cd42370816fd135c0f3b9debf2f5dfcf194594" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3728f1ccab46a3b88c31bb67fa8aa506f9e40f61ce5669f59f96886303208958
[INFO] running `Command { std: "docker" "start" "-a" "3728f1ccab46a3b88c31bb67fa8aa506f9e40f61ce5669f59f96886303208958", kill_on_drop: false }`
[INFO] [stderr] warning: the item `nix` is imported redundantly
[INFO] [stderr]   --> src/client/mod.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     use nix;
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]   ::: src/lib.rs:9:14
[INFO] [stderr]    |
[INFO] [stderr] 9  | #[cfg(unix)] extern crate nix;
[INFO] [stderr]    |              ----------------- the item `nix` is already imported here
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/client/mod.rs:148:1
[INFO] [stderr]     |
[INFO] [stderr] 148 | / bitflags! {
[INFO] [stderr] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stderr] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stderr] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stderr] ...   |
[INFO] [stderr] 157 | |     }
[INFO] [stderr] 158 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/client/mod.rs:148:1
[INFO] [stderr]     |
[INFO] [stderr] 148 | / bitflags! {
[INFO] [stderr] 149 | |     /// Flags used to modify how a client exports metrics
[INFO] [stderr] 150 | |     pub struct MMVFlags: u32 {
[INFO] [stderr] 151 | |         /// Metric names aren't prefixed with MMV filename
[INFO] [stderr] ...   |
[INFO] [stderr] 157 | |     }
[INFO] [stderr] 158 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__impl_bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> src/client/mod.rs:92:5
[INFO] [stderr]    |
[INFO] [stderr] 92 | /     lazy_static! {
[INFO] [stderr] 93 | |         static ref RE: Regex =
[INFO] [stderr] 94 | |             Regex::new("(?-u)^(PCP_[[:alnum:]_]+)=([^\"\'].*[^\"\'])\n$")
[INFO] [stderr] 95 | |                 .unwrap();
[INFO] [stderr] 96 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> src/client/metric/mod.rs:539:1
[INFO] [stderr]     |
[INFO] [stderr] 539 | / lazy_static! {
[INFO] [stderr] 540 | |     static ref SCRATCH_VIEW: MmapViewSync = {
[INFO] [stderr] 541 | |         Mmap::anonymous(STRING_BLOCK_LEN as usize, Protection::ReadWrite).unwrap()
[INFO] [stderr] 542 | |             .into_view_sync()
[INFO] [stderr] 543 | |     };
[INFO] [stderr] 544 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/mod.rs:226:46
[INFO] [stderr]     |
[INFO] [stderr] 226 |     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stderr]     |                                              ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 226 -     pub fn export(&self, metrics: &mut [&mut MMVWriter]) -> io::Result<()> {
[INFO] [stderr] 226 +     pub fn export(&self, metrics: &mut [&mut dyn MMVWriter]) -> io::Result<()> {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/client/metric/mod.rs:1355:39
[INFO] [stderr]      |
[INFO] [stderr] 1355 |         let mut mmv_writers: Vec<&mut MMVWriter> = metrics.iter_mut()
[INFO] [stderr]      |                                       ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1355 -         let mut mmv_writers: Vec<&mut MMVWriter> = metrics.iter_mut()
[INFO] [stderr] 1355 +         let mut mmv_writers: Vec<&mut dyn MMVWriter> = metrics.iter_mut()
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> src/client/metric/mod.rs:1356:32
[INFO] [stderr]      |
[INFO] [stderr] 1356 |             .map(|m| m as &mut MMVWriter)
[INFO] [stderr]      |                                ^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]      |
[INFO] [stderr] 1356 -             .map(|m| m as &mut MMVWriter)
[INFO] [stderr] 1356 +             .map(|m| m as &mut dyn MMVWriter)
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] warning: `hornet` (lib) generated 7 warnings (1 duplicate)
[INFO] [stderr] warning: `hornet` (lib test) generated 9 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hornet-0251a354843ef82c)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test client::metric::counter::test ... ok
[INFO] [stdout] test client::metric::gauge::test ... ok
[INFO] [stdout] test client::metric::gaugevector::test ... ok
[INFO] [stdout] test client::metric::countvector::test ... ok
[INFO] [stdout] test client::metric::test_instance_metrics ... ok
[INFO] [stdout] test client::metric::test_invalid_strings ... ok
[INFO] [stdout] test client::metric::test_units ... ok
[INFO] [stdout] test client::metric::test_mmv2_string_blocks ... ok
[INFO] [stdout] test client::metric::test_mmv2_string_check ... ok
[INFO] [stdout] test client::test_init_pcp_conf ... ok
[INFO] [stdout] test client::test_mmv_dir ... ok
[INFO] [stdout] test client::metric::test_simple_metrics ... ok
[INFO] [stdout] test client::test_mmv_header ... ok
[INFO] [stdout] test client::metric::test_random_numeric_metrics ... ok
[INFO] [stdout] test client::metric::countvector::test_multiple_initvals ... ok
[INFO] [stdout] test client::metric::histogram::test ... ok
[INFO] [stdout] test client::metric::timer::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/mmvdump.rs (/opt/rustwide/target/debug/deps/mmvdump-5127051490338069)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/mmvfmt.rs (/opt/rustwide/target/debug/deps/mmvfmt-781ad017ae928109)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_mmvfmt ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hornet
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3728f1ccab46a3b88c31bb67fa8aa506f9e40f61ce5669f59f96886303208958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3728f1ccab46a3b88c31bb67fa8aa506f9e40f61ce5669f59f96886303208958", kill_on_drop: false }`
[INFO] [stdout] 3728f1ccab46a3b88c31bb67fa8aa506f9e40f61ce5669f59f96886303208958