[INFO] fetching crate sorter 0.4.0...
[INFO] checking sorter-0.4.0 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate sorter 0.4.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sorter 0.4.0 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sorter 0.4.0
[INFO] finished tweaking crates.io crate sorter 0.4.0
[INFO] tweaked toml for crates.io crate sorter 0.4.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a97d6e4559e8c0b79d6184fc537850e320bc3250dc0a82909b8b81f4459b0bd4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "a97d6e4559e8c0b79d6184fc537850e320bc3250dc0a82909b8b81f4459b0bd4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sorter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]  --> tests/sorter.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | use rand::{Rng, thread_rng};
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]  --> benches/sort-bench.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand::{Rng, thread_rng};
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `gen_iter` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> tests/sorter.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 |     make_test_vec = thread_rng().gen_iter::<i32>().take(1000).collect::<Vec<i32>>();
[INFO] [stderr]    |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `gen_iter` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> tests/sorter.rs:25:34
[INFO] [stderr]    |
[INFO] [stderr] 25 |     make_test_vec = thread_rng().gen_iter::<i32>().take(555).collect::<Vec<i32>>();
[INFO] [stderr]    |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `sorter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `gen_iter` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> benches/sort-bench.rs:21:34
[INFO] [stderr]    |
[INFO] [stderr] 21 |     make_test_vec = thread_rng().gen_iter::<i32>().take(1000).collect::<Vec<i32>>();
[INFO] [stderr]    |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `gen_iter` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> benches/sort-bench.rs:23:34
[INFO] [stderr]    |
[INFO] [stderr] 23 |     make_test_vec = thread_rng().gen_iter::<i32>().take(555).collect::<Vec<i32>>();
[INFO] [stderr]    |                                  ^^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `sorter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a97d6e4559e8c0b79d6184fc537850e320bc3250dc0a82909b8b81f4459b0bd4"`
[INFO] running `"docker" "rm" "-f" "a97d6e4559e8c0b79d6184fc537850e320bc3250dc0a82909b8b81f4459b0bd4"`
[INFO] [stdout] a97d6e4559e8c0b79d6184fc537850e320bc3250dc0a82909b8b81f4459b0bd4