[INFO] fetching crate loaded_dice 0.2.1...
[INFO] building loaded_dice-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate loaded_dice 0.2.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate loaded_dice 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate loaded_dice 0.2.1
[INFO] finished tweaking crates.io crate loaded_dice 0.2.1
[INFO] tweaked toml for crates.io crate loaded_dice 0.2.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate loaded_dice 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b541f6b2b23897222cf4d728144201695cc244f31ab7eed9e81206d81c09d1d5
[INFO] running `"docker" "start" "-a" "b541f6b2b23897222cf4d728144201695cc244f31ab7eed9e81206d81c09d1d5"`
[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]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling loaded_dice v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]  --> src/example.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..iter) {
[INFO] [stderr]   |              ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]  --> src/example.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |                        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/example.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..iter) {
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.47s
[INFO] running `"docker" "inspect" "b541f6b2b23897222cf4d728144201695cc244f31ab7eed9e81206d81c09d1d5"`
[INFO] running `"docker" "rm" "-f" "b541f6b2b23897222cf4d728144201695cc244f31ab7eed9e81206d81c09d1d5"`
[INFO] [stdout] b541f6b2b23897222cf4d728144201695cc244f31ab7eed9e81206d81c09d1d5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 439454093fc7c408d6d0ac2fcc92a8270fef8d0705b23712dea780e3db1e4d49
[INFO] running `"docker" "start" "-a" "439454093fc7c408d6d0ac2fcc92a8270fef8d0705b23712dea780e3db1e4d49"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling loaded_dice v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/lib.rs:78:18
[INFO] [stderr]    |
[INFO] [stderr] 78 |         for i in (0..iter) {
[INFO] [stderr]    |                  ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]  --> src/example.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..iter) {
[INFO] [stderr]   |              ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]  --> src/example.rs:5:24
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |                        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/example.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..iter) {
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         for i in (0..iter) {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `"docker" "inspect" "439454093fc7c408d6d0ac2fcc92a8270fef8d0705b23712dea780e3db1e4d49"`
[INFO] running `"docker" "rm" "-f" "439454093fc7c408d6d0ac2fcc92a8270fef8d0705b23712dea780e3db1e4d49"`
[INFO] [stdout] 439454093fc7c408d6d0ac2fcc92a8270fef8d0705b23712dea780e3db1e4d49