[INFO] fetching crate itertools 0.10.0...
[INFO] building itertools-0.10.0 against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] extracting crate itertools 0.10.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate itertools 0.10.0 on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "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-4/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded permutohedron v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3acfa7dd8f158467553b13c4382af82d704cc0dcc1b6361b840726aeeea3cee4
[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" "3acfa7dd8f158467553b13c4382af82d704cc0dcc1b6361b840726aeeea3cee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3acfa7dd8f158467553b13c4382af82d704cc0dcc1b6361b840726aeeea3cee4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3acfa7dd8f158467553b13c4382af82d704cc0dcc1b6361b840726aeeea3cee4", kill_on_drop: false }`
[INFO] [stdout] 3acfa7dd8f158467553b13c4382af82d704cc0dcc1b6361b840726aeeea3cee4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", 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] 7309e9ab0af6caf8bfe4b764eccb6916bf34e97c6a6f5f7e71fff5638c53f8cc
[INFO] running `Command { std: "docker" "start" "-a" "7309e9ab0af6caf8bfe4b764eccb6916bf34e97c6a6f5f7e71fff5638c53f8cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.10.0 (/opt/rustwide/workdir)
[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] [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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "7309e9ab0af6caf8bfe4b764eccb6916bf34e97c6a6f5f7e71fff5638c53f8cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7309e9ab0af6caf8bfe4b764eccb6916bf34e97c6a6f5f7e71fff5638c53f8cc", kill_on_drop: false }`
[INFO] [stdout] 7309e9ab0af6caf8bfe4b764eccb6916bf34e97c6a6f5f7e71fff5638c53f8cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "test" "--frozen" "--no-run" "--message-format=json", 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] 8e7b0e989da88d141b6f922819f7125d523c8690b6e77b099d77102e8cabfb69
[INFO] running `Command { std: "docker" "start" "-a" "8e7b0e989da88d141b6f922819f7125d523c8690b6e77b099d77102e8cabfb69", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling permutohedron v0.2.4
[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] [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 num_cpus v1.13.0
[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] [stderr]    Compiling quote v1.0.8
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[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 rand_chacha v0.2.2
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling itertools v0.10.0 (/opt/rustwide/workdir)
[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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 <https://github.com/rust-lang/rust/issues/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 test [unoptimized + debuginfo] target(s) in 32.20s
[INFO] running `Command { std: "docker" "inspect" "8e7b0e989da88d141b6f922819f7125d523c8690b6e77b099d77102e8cabfb69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e7b0e989da88d141b6f922819f7125d523c8690b6e77b099d77102e8cabfb69", kill_on_drop: false }`
[INFO] [stdout] 8e7b0e989da88d141b6f922819f7125d523c8690b6e77b099d77102e8cabfb69
