[INFO] fetching crate hmmm 0.2.0...
[INFO] checking hmmm-0.2.0 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] extracting crate hmmm 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate hmmm 0.2.0
[INFO] finished tweaking crates.io crate hmmm 0.2.0
[INFO] tweaked toml for crates.io crate hmmm 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate hmmm 0.2.0 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding counter v0.5.7 (available: v0.7.1)
[INFO] [stderr]       Adding itertools v0.9.0 (available: v0.15.0)
[INFO] [stderr]       Adding ndarray v0.13.1 (available: v0.17.2)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "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 spectral v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b
[INFO] running `Command { std: "docker" "start" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]     Checking cfg-if v1.0.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling zerocopy v0.8.53
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]    Compiling serde_json v1.0.150
[INFO] [stderr]     Checking itoa v1.0.18
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking counter v0.5.7
[INFO] [stderr]     Checking num-iter v0.1.46
[INFO] [stderr]     Checking num v0.1.43
[INFO] [stderr]     Checking spectral v0.6.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking hmmm v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `ArrayFloat` is never used
[INFO] [stdout]    --> src/lib.rs:672:15
[INFO] [stdout]     |
[INFO] [stdout] 672 |     pub trait ArrayFloat<T: Float> {
[INFO] [stdout]     |               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Array1Num` is never used
[INFO] [stdout]    --> src/lib.rs:696:15
[INFO] [stdout]     |
[INFO] [stdout] 696 |     pub trait Array1Num<T>
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:158:70
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn sampler<'a, R: Rng + ?Sized>(&'a self, rng: &'a mut R) -> HMMSampleIter<R> {
[INFO] [stdout]     |                                          --             --           ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                          |              |
[INFO] [stdout]     |                                          |              the lifetime is named here
[INFO] [stdout]     |                                          the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn sampler<'a, R: Rng + ?Sized>(&'a self, rng: &'a mut R) -> HMMSampleIter<'a, R> {
[INFO] [stdout]     |                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:193:22
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn filter<I>(&self, ys: I) -> HMMFilterIter<I::IntoIter>
[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] 193 |     pub fn filter<I>(&self, ys: I) -> HMMFilterIter<'_, I::IntoIter>
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:750:17
[INFO] [stdout]     |
[INFO] [stdout] 750 |                 format!("Sum of {} must be positive", label)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 750 -                 format!("Sum of {} must be positive", label)
[INFO] [stdout] 750 +                 "Sum of {} must be positive", label
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Array1Num` is never used
[INFO] [stdout]    --> src/lib.rs:696:15
[INFO] [stdout]     |
[INFO] [stdout] 696 |     pub trait Array1Num<T>
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:158:70
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn sampler<'a, R: Rng + ?Sized>(&'a self, rng: &'a mut R) -> HMMSampleIter<R> {
[INFO] [stdout]     |                                          --             --           ^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                          |              |
[INFO] [stdout]     |                                          |              the lifetime is named here
[INFO] [stdout]     |                                          the lifetime is named 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: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 158 |     pub fn sampler<'a, R: Rng + ?Sized>(&'a self, rng: &'a mut R) -> HMMSampleIter<'a, R> {
[INFO] [stdout]     |                                                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:193:22
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn filter<I>(&self, ys: I) -> HMMFilterIter<I::IntoIter>
[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] 193 |     pub fn filter<I>(&self, ys: I) -> HMMFilterIter<'_, I::IntoIter>
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:750:17
[INFO] [stdout]     |
[INFO] [stdout] 750 |                 format!("Sum of {} must be positive", label)
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 750 -                 format!("Sum of {} must be positive", label)
[INFO] [stdout] 750 +                 "Sum of {} must be positive", label
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 10.18s
[INFO] running `Command { std: "docker" "inspect" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b", kill_on_drop: false }`
[INFO] [stdout] de5c1f87c53d7043eb8571469d2215356457bd337190191410cf9ebab8ce0e0b
