[INFO] updating cached repository errorport/rustbeat [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/errorport/rustbeat [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/errorport/rustbeat" "work/ex/beta-1.38-1/sources/1.37.0/gh/errorport/rustbeat"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/errorport/rustbeat'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/errorport/rustbeat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/errorport/rustbeat"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/errorport/rustbeat'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] df6a90a0a152ae7a5a66c994f15794631328a7a6 [INFO] sha for GitHub repo errorport/rustbeat: df6a90a0a152ae7a5a66c994f15794631328a7a6 [INFO] validating manifest of errorport/rustbeat 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 errorport/rustbeat 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 errorport/rustbeat [INFO] finished frobbing errorport/rustbeat [INFO] frobbed toml for errorport/rustbeat written to work/ex/beta-1.38-1/sources/1.37.0/gh/errorport/rustbeat/Cargo.toml [INFO] started frobbing errorport/rustbeat [INFO] finished frobbing errorport/rustbeat [INFO] frobbed toml for errorport/rustbeat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/errorport/rustbeat/Cargo.toml [INFO] crate errorport/rustbeat already has a lockfile, it will not be regenerated [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] testing errorport/rustbeat 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-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/errorport/rustbeat:/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] 859e70c5973a334ceb9790f2278f28b468798e5524b8208a16588b1901fed90f [INFO] running `"docker" "start" "-a" "859e70c5973a334ceb9790f2278f28b468798e5524b8208a16588b1901fed90f"` [INFO] [stderr] Compiling deep_unknown v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:18:6 [INFO] [stderr] | [INFO] [stderr] 18 | t+=(increment[increment_index] as i64); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rng` [INFO] [stderr] --> src/main.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | let mut rng = thread_rng(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_rng` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/main.rs:32:10 [INFO] [stderr] | [INFO] [stderr] 32 | let mut s: i64 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/main.rs:38:10 [INFO] [stderr] | [INFO] [stderr] 38 | let mut s: i64 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/main.rs:44:10 [INFO] [stderr] | [INFO] [stderr] 44 | let mut s: i64 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | let mut rng = thread_rng(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `"docker" "inspect" "859e70c5973a334ceb9790f2278f28b468798e5524b8208a16588b1901fed90f"` [INFO] running `"docker" "rm" "-f" "859e70c5973a334ceb9790f2278f28b468798e5524b8208a16588b1901fed90f"` [INFO] [stdout] 859e70c5973a334ceb9790f2278f28b468798e5524b8208a16588b1901fed90f [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/errorport/rustbeat:/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] bb0e299bcb31321c09c4d6eb04e663e7b4696258e8ae33f7dd5e041d9e2b14d4 [INFO] running `"docker" "start" "-a" "bb0e299bcb31321c09c4d6eb04e663e7b4696258e8ae33f7dd5e041d9e2b14d4"` [INFO] [stderr] Compiling deep_unknown v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/main.rs:18:6 [INFO] [stderr] | [INFO] [stderr] 18 | t+=(increment[increment_index] as i64); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rng` [INFO] [stderr] --> src/main.rs:6:10 [INFO] [stderr] | [INFO] [stderr] 6 | let mut rng = thread_rng(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_rng` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/main.rs:32:10 [INFO] [stderr] | [INFO] [stderr] 32 | let mut s: i64 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/main.rs:38:10 [INFO] [stderr] | [INFO] [stderr] 38 | let mut s: i64 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `s` is never read [INFO] [stderr] --> src/main.rs:44:10 [INFO] [stderr] | [INFO] [stderr] 44 | let mut s: i64 = 0; [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | let mut rng = thread_rng(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `"docker" "inspect" "bb0e299bcb31321c09c4d6eb04e663e7b4696258e8ae33f7dd5e041d9e2b14d4"` [INFO] running `"docker" "rm" "-f" "bb0e299bcb31321c09c4d6eb04e663e7b4696258e8ae33f7dd5e041d9e2b14d4"` [INFO] [stdout] bb0e299bcb31321c09c4d6eb04e663e7b4696258e8ae33f7dd5e041d9e2b14d4 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/errorport/rustbeat:/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"` [INFO] [stdout] e78ca7715551de74474639b4eb89989aebb51fb608f2bbd131aadd8e3f098115 [INFO] running `"docker" "start" "-a" "e78ca7715551de74474639b4eb89989aebb51fb608f2bbd131aadd8e3f098115"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/deep_unknown-159d8053744da144 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "e78ca7715551de74474639b4eb89989aebb51fb608f2bbd131aadd8e3f098115"` [INFO] running `"docker" "rm" "-f" "e78ca7715551de74474639b4eb89989aebb51fb608f2bbd131aadd8e3f098115"` [INFO] [stdout] e78ca7715551de74474639b4eb89989aebb51fb608f2bbd131aadd8e3f098115