[INFO] updating cached repository Geal/pgo-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Geal/pgo-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Geal/pgo-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/Geal/pgo-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Geal/pgo-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Geal/pgo-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Geal/pgo-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Geal/pgo-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a4ad565469fcf9260ab581e631224796d5778994
[INFO] sha for GitHub repo Geal/pgo-rust: a4ad565469fcf9260ab581e631224796d5778994
[INFO] validating manifest of Geal/pgo-rust on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Geal/pgo-rust on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Geal/pgo-rust
[INFO] finished frobbing Geal/pgo-rust
[INFO] frobbed toml for Geal/pgo-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/Geal/pgo-rust/Cargo.toml
[INFO] started frobbing Geal/pgo-rust
[INFO] finished frobbing Geal/pgo-rust
[INFO] frobbed toml for Geal/pgo-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Geal/pgo-rust/Cargo.toml
[INFO] crate Geal/pgo-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Geal/pgo-rust against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Geal/pgo-rust:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 1a62b3add4d9db6ff93d8e23b946ac5bc8ab75b4ac75a922fa2645aac80bb8fb
[INFO] running `"docker" "start" "-a" "1a62b3add4d9db6ff93d8e23b946ac5bc8ab75b4ac75a922fa2645aac80bb8fb"`
[INFO] [stderr]    Compiling pgo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/main.rs:189:14
[INFO] [stderr]     |
[INFO] [stderr] 189 |     for _ in (0..n) {
[INFO] [stderr]     |              ^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:150:12
[INFO] [stderr]     |
[INFO] [stderr] 150 | fn advance(mut bodies: &mut [Planet; N_BODIES], dt: f64,
[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 0.84s
[INFO] running `"docker" "inspect" "1a62b3add4d9db6ff93d8e23b946ac5bc8ab75b4ac75a922fa2645aac80bb8fb"`
[INFO] running `"docker" "rm" "-f" "1a62b3add4d9db6ff93d8e23b946ac5bc8ab75b4ac75a922fa2645aac80bb8fb"`
[INFO] [stdout] 1a62b3add4d9db6ff93d8e23b946ac5bc8ab75b4ac75a922fa2645aac80bb8fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Geal/pgo-rust:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b4f1fe619837b67ccc99e26983fc1c8aa670ab12a53af7e442172e48bd44e2c4
[INFO] running `"docker" "start" "-a" "b4f1fe619837b67ccc99e26983fc1c8aa670ab12a53af7e442172e48bd44e2c4"`
[INFO] [stderr]    Compiling pgo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/main.rs:189:14
[INFO] [stderr]     |
[INFO] [stderr] 189 |     for _ in (0..n) {
[INFO] [stderr]     |              ^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:150:12
[INFO] [stderr]     |
[INFO] [stderr] 150 | fn advance(mut bodies: &mut [Planet; N_BODIES], dt: f64,
[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 0.65s
[INFO] running `"docker" "inspect" "b4f1fe619837b67ccc99e26983fc1c8aa670ab12a53af7e442172e48bd44e2c4"`
[INFO] running `"docker" "rm" "-f" "b4f1fe619837b67ccc99e26983fc1c8aa670ab12a53af7e442172e48bd44e2c4"`
[INFO] [stdout] b4f1fe619837b67ccc99e26983fc1c8aa670ab12a53af7e442172e48bd44e2c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Geal/pgo-rust:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 9cbc46f89b71f8b809673d228598fb163ca7e328e7a2e3b01f33778b2a7fe873
[INFO] running `"docker" "start" "-a" "9cbc46f89b71f8b809673d228598fb163ca7e328e7a2e3b01f33778b2a7fe873"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pgo-ccb349a3aed1e275
[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" "9cbc46f89b71f8b809673d228598fb163ca7e328e7a2e3b01f33778b2a7fe873"`
[INFO] running `"docker" "rm" "-f" "9cbc46f89b71f8b809673d228598fb163ca7e328e7a2e3b01f33778b2a7fe873"`
[INFO] [stdout] 9cbc46f89b71f8b809673d228598fb163ca7e328e7a2e3b01f33778b2a7fe873