[INFO] crate dinotree_sample 0.1.0 is already in cache
[INFO] extracting crate dinotree_sample 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/dinotree_sample/0.1.0
[INFO] extracting crate dinotree_sample 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dinotree_sample/0.1.0
[INFO] validating manifest of dinotree_sample-0.1.0 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 dinotree_sample-0.1.0 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 dinotree_sample-0.1.0
[INFO] finished frobbing dinotree_sample-0.1.0
[INFO] frobbed toml for dinotree_sample-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/dinotree_sample/0.1.0/Cargo.toml
[INFO] started frobbing dinotree_sample-0.1.0
[INFO] finished frobbing dinotree_sample-0.1.0
[INFO] frobbed toml for dinotree_sample-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dinotree_sample/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing dinotree_sample-0.1.0 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-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dinotree_sample/0.1.0:/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] a8f810d726ec8cd6a7326d843bce2be8169755a8105f89d7b23e2cfd53502ebb
[INFO] running `"docker" "start" "-a" "a8f810d726ec8cd6a7326d843bce2be8169755a8105f89d7b23e2cfd53502ebb"`
[INFO] [stderr]    Compiling dists v0.1.5
[INFO] [stderr]    Compiling new-ordered-float v1.0.2
[INFO] [stderr]    Compiling dinotree_sample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `core::num::<impl usize>::wrapping_add` that must be used
[INFO] [stderr]   --> src/lib.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |         self.acc.wrapping_add(bot.id);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl usize>::wrapping_add` that must be used
[INFO] [stderr]   --> src/lib.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |         bot.acc.wrapping_add(self.id);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "a8f810d726ec8cd6a7326d843bce2be8169755a8105f89d7b23e2cfd53502ebb"`
[INFO] running `"docker" "rm" "-f" "a8f810d726ec8cd6a7326d843bce2be8169755a8105f89d7b23e2cfd53502ebb"`
[INFO] [stdout] a8f810d726ec8cd6a7326d843bce2be8169755a8105f89d7b23e2cfd53502ebb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dinotree_sample/0.1.0:/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] 43205991cc82d16b5640f6d162380884acf123af28551c45aa64977616637eac
[INFO] running `"docker" "start" "-a" "43205991cc82d16b5640f6d162380884acf123af28551c45aa64977616637eac"`
[INFO] [stderr]    Compiling dinotree_sample v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `core::num::<impl usize>::wrapping_add` that must be used
[INFO] [stderr]   --> src/lib.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |         self.acc.wrapping_add(bot.id);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::num::<impl usize>::wrapping_add` that must be used
[INFO] [stderr]   --> src/lib.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |         bot.acc.wrapping_add(self.id);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "43205991cc82d16b5640f6d162380884acf123af28551c45aa64977616637eac"`
[INFO] running `"docker" "rm" "-f" "43205991cc82d16b5640f6d162380884acf123af28551c45aa64977616637eac"`
[INFO] [stdout] 43205991cc82d16b5640f6d162380884acf123af28551c45aa64977616637eac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/dinotree_sample/0.1.0:/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] ee6a30ebfce4b24906be53aa77183fbc3cf23aa8068f2a1bc5710f3c4ba45cbb
[INFO] running `"docker" "start" "-a" "ee6a30ebfce4b24906be53aa77183fbc3cf23aa8068f2a1bc5710f3c4ba45cbb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/dinotree_sample-3eb8a01ed594a439
[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] [stderr]    Doc-tests dinotree_sample
[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" "ee6a30ebfce4b24906be53aa77183fbc3cf23aa8068f2a1bc5710f3c4ba45cbb"`
[INFO] running `"docker" "rm" "-f" "ee6a30ebfce4b24906be53aa77183fbc3cf23aa8068f2a1bc5710f3c4ba45cbb"`
[INFO] [stdout] ee6a30ebfce4b24906be53aa77183fbc3cf23aa8068f2a1bc5710f3c4ba45cbb