[INFO] fetching crate itertools 0.10.0... [INFO] checking itertools-0.10.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920 [INFO] extracting crate itertools 0.10.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate itertools 0.10.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate itertools 0.10.0 [INFO] finished tweaking crates.io crate itertools 0.10.0 [INFO] tweaked toml for crates.io crate itertools 0.10.0 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate crates.io crate itertools 0.10.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 73c23ec79e94b32d0c8c43dcbe06b34bc1975fe0dc43b35a96aa02d8218929ae [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "73c23ec79e94b32d0c8c43dcbe06b34bc1975fe0dc43b35a96aa02d8218929ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "73c23ec79e94b32d0c8c43dcbe06b34bc1975fe0dc43b35a96aa02d8218929ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73c23ec79e94b32d0c8c43dcbe06b34bc1975fe0dc43b35a96aa02d8218929ae", kill_on_drop: false }` [INFO] [stdout] 73c23ec79e94b32d0c8c43dcbe06b34bc1975fe0dc43b35a96aa02d8218929ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ecdaeb96d1e1a3e5cd42184f383cc5ffee3f050d5b7a6a2b657185a709dfea4d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ecdaeb96d1e1a3e5cd42184f383cc5ffee3f050d5b7a6a2b657185a709dfea4d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling syn v1.0.55 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Compiling paste v1.0.4 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking itertools v0.10.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Compiling quote v1.0.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolons [INFO] [stdout] --> src/tuple_impl.rs:320:19 [INFO] [stdout] | [INFO] [stdout] 320 | }}; [INFO] [stdout] | ^ help: remove these semicolons [INFO] [stdout] ... [INFO] [stdout] 327 | impl_tuple_collect!(dummy, a, b, c, d, e, f, g, h, i, j, k, l,); [INFO] [stdout] | ---------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking bstr v0.2.14 [INFO] [stderr] Checking serde_json v1.0.60 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking csv v1.1.5 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rayon-core v1.9.0 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Checking criterion v0.3.3 [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> benches/fold_specialization.rs:35:42 [INFO] [stdout] | [INFO] [stdout] 35 | for &x in arr.iter().intersperse(&0) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/fold_specialization.rs:5:27 [INFO] [stdout] | [INFO] [stdout] 5 | let mut iter = (1..2).intersperse(0); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/fold_specialization.rs:8:27 [INFO] [stdout] | [INFO] [stdout] 8 | let mut iter = (1..3).intersperse(0); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/fold_specialization.rs:11:27 [INFO] [stdout] | [INFO] [stdout] 11 | let mut iter = (1..4).intersperse(0); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> benches/fold_specialization.rs:49:32 [INFO] [stdout] | [INFO] [stdout] 49 | arr.iter().intersperse(&0).fold(0, |acc, x| acc + x) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> benches/fold_specialization.rs:60:46 [INFO] [stdout] | [INFO] [stdout] 60 | Unspecialized(arr.iter().intersperse(&0)).fold(0, |acc, x| acc + x) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/test_std.rs:93:53 [INFO] [stdout] | [INFO] [stdout] 93 | let v: Vec<&str> = xs.iter().map(|x| x.clone()).intersperse(", ").collect(); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/test_std.rs:98:45 [INFO] [stdout] | [INFO] [stdout] 98 | let mut it = ys[..0].iter().map(|x| *x).intersperse(1); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/quick.rs:642:29 [INFO] [stdout] | [INFO] [stdout] 642 | correct_size_hint(a.intersperse(x)) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: an associated function with this name may be added to the standard library in the future [INFO] [stdout] --> tests/quick.rs:647:38 [INFO] [stdout] | [INFO] [stdout] 647 | for elt in a.iter().cloned().intersperse(x) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 31.20s [INFO] running `Command { std: "docker" "inspect" "ecdaeb96d1e1a3e5cd42184f383cc5ffee3f050d5b7a6a2b657185a709dfea4d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecdaeb96d1e1a3e5cd42184f383cc5ffee3f050d5b7a6a2b657185a709dfea4d", kill_on_drop: false }` [INFO] [stdout] ecdaeb96d1e1a3e5cd42184f383cc5ffee3f050d5b7a6a2b657185a709dfea4d