[INFO] fetching crate itertools 0.10.1... [INFO] checking itertools-0.10.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141 [INFO] extracting crate itertools 0.10.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate itertools 0.10.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate itertools 0.10.1 [INFO] finished tweaking crates.io crate itertools 0.10.1 [INFO] tweaked toml for crates.io crate itertools 0.10.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate crates.io crate itertools 0.10.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded itoa v0.4.7 [INFO] [stderr] Downloaded serde_derive v1.0.126 [INFO] [stderr] Downloaded bstr v0.2.16 [INFO] [stderr] Downloaded serde v1.0.126 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.74 [INFO] [stderr] Downloaded serde_cbor v0.11.1 [INFO] [stderr] Downloaded memchr v2.4.0 [INFO] [stderr] Downloaded wasm-bindgen v0.2.74 [INFO] [stderr] Downloaded serde_json v1.0.64 [INFO] [stderr] Downloaded criterion-plot v0.4.3 [INFO] [stderr] Downloaded itertools v0.10.0 [INFO] [stderr] Downloaded cast v0.2.6 [INFO] [stderr] Downloaded proc-macro2 v1.0.27 [INFO] [stderr] Downloaded criterion v0.3.4 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.74 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.74 [INFO] [stderr] Downloaded plotters-svg v0.3.0 [INFO] [stderr] Downloaded js-sys v0.3.51 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.74 [INFO] [stderr] Downloaded web-sys v0.3.51 [INFO] [stderr] Downloaded syn v1.0.72 [INFO] [stderr] Downloaded libc v0.2.96 [INFO] [stderr] Downloaded half v1.7.1 [INFO] [stderr] Downloaded crossbeam-deque v0.8.0 [INFO] [stderr] Downloaded quickcheck v0.9.2 [INFO] [stderr] Downloaded plotters-backend v0.3.0 [INFO] [stderr] Downloaded permutohedron v0.2.4 [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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 42d1a2eb7e7afca014548697aa50ea2f10c8363b3c6929c30b69555763e36579 [INFO] running `Command { std: "docker" "start" "-a" "42d1a2eb7e7afca014548697aa50ea2f10c8363b3c6929c30b69555763e36579", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42d1a2eb7e7afca014548697aa50ea2f10c8363b3c6929c30b69555763e36579", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42d1a2eb7e7afca014548697aa50ea2f10c8363b3c6929c30b69555763e36579", kill_on_drop: false }` [INFO] [stdout] 42d1a2eb7e7afca014548697aa50ea2f10c8363b3c6929c30b69555763e36579 [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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fa2849ae389e373c222521be8cb96e134023b670e484d6326904988b08ccb623 [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" "fa2849ae389e373c222521be8cb96e134023b670e484d6326904988b08ccb623", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.96 [INFO] [stderr] Checking cfg-if v1.0.0 [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 memchr v2.4.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking itertools v0.10.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stdout] warning: unused attribute `inline` [INFO] [stdout] --> src/flatten_ok.rs:141:5 [INFO] [stdout] | [INFO] [stdout] 141 | #[inline] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] note: the built-in attribute `inline` will be ignored, since it's applied to the macro invocation `clone_fields` [INFO] [stdout] --> src/flatten_ok.rs:142:5 [INFO] [stdout] | [INFO] [stdout] 142 | clone_fields!(iter, inner_front, inner_back); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused attribute `inline` [INFO] [stdout] --> src/rciter_impl.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | #[inline] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the built-in attribute `inline` will be ignored, since it's applied to the macro invocation `clone_fields` [INFO] [stdout] --> src/rciter_impl.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | clone_fields!(rciter); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling semver-parser v0.10.2 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling semver v0.11.0 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Compiling rustc_version v0.3.3 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Compiling cast v0.2.6 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.4 [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: 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] --> tests/test_std.rs:119:53 [INFO] [stdout] | [INFO] [stdout] 119 | 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:124:45 [INFO] [stdout] | [INFO] [stdout] 124 | 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: 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] --> 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: 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: 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 44.65s [INFO] running `Command { std: "docker" "inspect" "fa2849ae389e373c222521be8cb96e134023b670e484d6326904988b08ccb623", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa2849ae389e373c222521be8cb96e134023b670e484d6326904988b08ccb623", kill_on_drop: false }` [INFO] [stdout] fa2849ae389e373c222521be8cb96e134023b670e484d6326904988b08ccb623