[INFO] crate loaded_dice 0.1.1 is already in cache
[INFO] extracting crate loaded_dice 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/loaded_dice/0.1.1
[INFO] extracting crate loaded_dice 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/loaded_dice/0.1.1
[INFO] validating manifest of loaded_dice-0.1.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of loaded_dice-0.1.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing loaded_dice-0.1.1
[INFO] finished frobbing loaded_dice-0.1.1
[INFO] frobbed toml for loaded_dice-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/loaded_dice/0.1.1/Cargo.toml
[INFO] started frobbing loaded_dice-0.1.1
[INFO] finished frobbing loaded_dice-0.1.1
[INFO] frobbed toml for loaded_dice-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/loaded_dice/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building loaded_dice-0.1.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/loaded_dice/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3aa64360a1014f75044b69083d513412bdcba70f4dadc4ac76603c68a7ea89b4
[INFO] running `"docker" "start" "-a" "3aa64360a1014f75044b69083d513412bdcba70f4dadc4ac76603c68a7ea89b4"`
[INFO] [stderr]    Compiling loaded_dice v0.1.1 (/opt/crater/workdir)
[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: unnecessary parentheses around `for` head 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 variable: `i`
[INFO] [stderr]  --> src/example.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..iter) {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "3aa64360a1014f75044b69083d513412bdcba70f4dadc4ac76603c68a7ea89b4"`
[INFO] running `"docker" "rm" "-f" "3aa64360a1014f75044b69083d513412bdcba70f4dadc4ac76603c68a7ea89b4"`
[INFO] [stdout] 3aa64360a1014f75044b69083d513412bdcba70f4dadc4ac76603c68a7ea89b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/loaded_dice/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 41e4cb439190d6d62598ce647b7228871d1a7953c4ca42eb46d802e573fc93d3
[INFO] running `"docker" "start" "-a" "41e4cb439190d6d62598ce647b7228871d1a7953c4ca42eb46d802e573fc93d3"`
[INFO] [stderr]    Compiling loaded_dice v0.1.1 (/opt/crater/workdir)
[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: unnecessary parentheses around `for` head 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 variable: `i`
[INFO] [stderr]  --> src/example.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..iter) {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head 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: unused variable: `i`
[INFO] [stderr]   --> src/lib.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |         for i in (0..iter) {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "41e4cb439190d6d62598ce647b7228871d1a7953c4ca42eb46d802e573fc93d3"`
[INFO] running `"docker" "rm" "-f" "41e4cb439190d6d62598ce647b7228871d1a7953c4ca42eb46d802e573fc93d3"`
[INFO] [stdout] 41e4cb439190d6d62598ce647b7228871d1a7953c4ca42eb46d802e573fc93d3