[INFO] fetching crate tinyset 0.4.4...
[INFO] checking tinyset-0.4.4 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate tinyset 0.4.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tinyset 0.4.4 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tinyset 0.4.4
[INFO] finished tweaking crates.io crate tinyset 0.4.4
[INFO] tweaked toml for crates.io crate tinyset 0.4.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded heapsize v0.4.2
[INFO] [stderr]   Downloaded rand_xorshift v0.2.0
[INFO] [stderr]   Downloaded bytemuck v1.7.0
[INFO] [stderr]   Downloaded easybench v1.1.0
[INFO] [stderr]   Downloaded retain_mut v0.1.3
[INFO] [stderr]   Downloaded id-set v0.2.2
[INFO] [stderr]   Downloaded roaring v0.6.7
[INFO] [stderr]   Downloaded proptest v0.10.1
[INFO] [stderr]   Downloaded stats_alloc v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba281ece19b9dea42908fa069e26da392ae3c01cec5d667e723ca3d9fee4b037
[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" "ba281ece19b9dea42908fa069e26da392ae3c01cec5d667e723ca3d9fee4b037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba281ece19b9dea42908fa069e26da392ae3c01cec5d667e723ca3d9fee4b037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba281ece19b9dea42908fa069e26da392ae3c01cec5d667e723ca3d9fee4b037", kill_on_drop: false }`
[INFO] [stdout] ba281ece19b9dea42908fa069e26da392ae3c01cec5d667e723ca3d9fee4b037
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b67456b76b0bce7ff928b0916433655449ef9fc3799718147db06ab57a1f6441
[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" "b67456b76b0bce7ff928b0916433655449ef9fc3799718147db06ab57a1f6441", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]     Checking bytemuck v1.7.0
[INFO] [stderr]     Checking id-set v0.2.2
[INFO] [stderr]     Checking easybench v1.1.0
[INFO] [stderr]     Checking stats_alloc v0.1.8
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking roaring v0.6.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking tinyset v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/setu32b.rs:1154:40
[INFO] [stdout]      |
[INFO] [stdout] 1154 |             Inserted::NoRoom => panic!(msg),
[INFO] [stdout]      |                                        ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1154 |             Inserted::NoRoom => panic!("{}", msg),
[INFO] [stdout]      |                                        ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1154 |             Inserted::NoRoom => std::panic::panic_any(msg),
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `easybench::bench_power_scaling`
[INFO] [stdout]  --> benches/bench.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use easybench::{bench_gen_env, bench_power_scaling};
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^ no `bench_power_scaling` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tinyset`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/setu32b.rs:138:30
[INFO] [stdout]     |
[INFO] [stdout] 138 |     for v in [0,1,1,2,29,30].into_iter().cloned() {
[INFO] [stdout]     |                              ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 138 |     for v in [0,1,1,2,29,30].iter().cloned() {
[INFO] [stdout]     |                              ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 138 |     for v in IntoIterator::into_iter([0,1,1,2,29,30]).cloned() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^               ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/setu32b.rs:144:28
[INFO] [stdout]     |
[INFO] [stdout] 144 |     for v in [0,30,2,29,1].into_iter().cloned() {
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 144 |     for v in [0,30,2,29,1].iter().cloned() {
[INFO] [stdout]     |                            ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 144 |     for v in IntoIterator::into_iter([0,30,2,29,1]).cloned() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/setu32b.rs:154:28
[INFO] [stdout]     |
[INFO] [stdout] 154 |     for v in [49,40,30,21].into_iter().cloned() {
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 154 |     for v in [49,40,30,21].iter().cloned() {
[INFO] [stdout]     |                            ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 154 |     for v in IntoIterator::into_iter([49,40,30,21]).cloned() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]    --> src/setu32b.rs:159:28
[INFO] [stdout]     |
[INFO] [stdout] 159 |     for v in [49,40,30,21].into_iter().cloned() {
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 159 |     for v in [49,40,30,21].iter().cloned() {
[INFO] [stdout]     |                            ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 159 |     for v in IntoIterator::into_iter([49,40,30,21]).cloned() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^             ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/setu32b.rs:1154:40
[INFO] [stdout]      |
[INFO] [stdout] 1154 |             Inserted::NoRoom => panic!(msg),
[INFO] [stdout]      |                                        ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]      |
[INFO] [stdout] 1154 |             Inserted::NoRoom => panic!("{}", msg),
[INFO] [stdout]      |                                        ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]      |
[INFO] [stdout] 1154 |             Inserted::NoRoom => std::panic::panic_any(msg),
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b67456b76b0bce7ff928b0916433655449ef9fc3799718147db06ab57a1f6441", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67456b76b0bce7ff928b0916433655449ef9fc3799718147db06ab57a1f6441", kill_on_drop: false }`
[INFO] [stdout] b67456b76b0bce7ff928b0916433655449ef9fc3799718147db06ab57a1f6441