[INFO] crate tract 0.3.3 is already in cache
[INFO] extracting crate tract 0.3.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/tract/0.3.3
[INFO] extracting crate tract 0.3.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tract/0.3.3
[INFO] validating manifest of tract-0.3.3 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 tract-0.3.3 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 tract-0.3.3
[INFO] finished frobbing tract-0.3.3
[INFO] frobbed toml for tract-0.3.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tract/0.3.3/Cargo.toml
[INFO] started frobbing tract-0.3.3
[INFO] finished frobbing tract-0.3.3
[INFO] frobbed toml for tract-0.3.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tract/0.3.3/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] [stderr]     Blocking waiting for file lock on package cache
[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] testing tract-0.3.3 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tract/0.3.3:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 4d1377c282e2e6e426ffaac1bba82e219123150cbc658bbbebb63be2f2107e12
[INFO] running `"docker" "start" "-a" "4d1377c282e2e6e426ffaac1bba82e219123150cbc658bbbebb63be2f2107e12"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling unsafe_unwrap v0.1.0
[INFO] [stderr]    Compiling box_drawing v0.1.2
[INFO] [stderr]    Compiling tract-linalg v0.3.3
[INFO] [stderr]    Compiling terminal_size v0.1.8
[INFO] [stderr]    Compiling pbr v1.0.1
[INFO] [stderr]    Compiling bstr v0.2.6
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling prettytable-rs v0.8.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling derive-new v0.5.7
[INFO] [stderr]    Compiling no-panic v0.1.10
[INFO] [stderr]    Compiling custom_debug_derive v0.1.7
[INFO] [stderr]    Compiling tract-core v0.3.3
[INFO] [stderr]    Compiling tract-tensorflow v0.3.3
[INFO] [stderr]    Compiling tract-onnx v0.3.3
[INFO] [stderr]    Compiling tract v0.3.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/errors.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  |   /// Configures error handling for this crate.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     types {
[INFO] [stderr] 9  | |         CliError, CliErrorKind, CliResultExt, CliResult;
[INFO] [stderr] 10 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]    --> src/tensor.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |     use rand;
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:16:1
[INFO] [stderr]     |
[INFO] [stderr] 16  | extern crate rand;
[INFO] [stderr]     | ------------------ the item `rand` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 43s
[INFO] running `"docker" "inspect" "4d1377c282e2e6e426ffaac1bba82e219123150cbc658bbbebb63be2f2107e12"`
[INFO] running `"docker" "rm" "-f" "4d1377c282e2e6e426ffaac1bba82e219123150cbc658bbbebb63be2f2107e12"`
[INFO] [stdout] 4d1377c282e2e6e426ffaac1bba82e219123150cbc658bbbebb63be2f2107e12
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tract/0.3.3:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4f5c2108b9c476af1cd31952ec254b53c60b817646de890f178024436d052f49
[INFO] running `"docker" "start" "-a" "4f5c2108b9c476af1cd31952ec254b53c60b817646de890f178024436d052f49"`
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling tract v0.3.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/errors.rs:6:1
[INFO] [stderr]    |
[INFO] [stderr] 6  |   /// Configures error handling for this crate.
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 7  | / error_chain! {
[INFO] [stderr] 8  | |     types {
[INFO] [stderr] 9  | |         CliError, CliErrorKind, CliResultExt, CliResult;
[INFO] [stderr] 10 | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]    --> src/tensor.rs:138:9
[INFO] [stderr]     |
[INFO] [stderr] 138 |     use rand;
[INFO] [stderr]     |         ^^^^
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/main.rs:16:1
[INFO] [stderr]     |
[INFO] [stderr] 16  | extern crate rand;
[INFO] [stderr]     | ------------------ the item `rand` is already imported here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.79s
[INFO] running `"docker" "inspect" "4f5c2108b9c476af1cd31952ec254b53c60b817646de890f178024436d052f49"`
[INFO] running `"docker" "rm" "-f" "4f5c2108b9c476af1cd31952ec254b53c60b817646de890f178024436d052f49"`
[INFO] [stdout] 4f5c2108b9c476af1cd31952ec254b53c60b817646de890f178024436d052f49
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tract/0.3.3:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 9c6c3e478e119aa942a25470c60136e59f5f69e153f241502f1d2dbd861aa70a
[INFO] running `"docker" "start" "-a" "9c6c3e478e119aa942a25470c60136e59f5f69e153f241502f1d2dbd861aa70a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tract-3288deda49658e37
[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" "9c6c3e478e119aa942a25470c60136e59f5f69e153f241502f1d2dbd861aa70a"`
[INFO] running `"docker" "rm" "-f" "9c6c3e478e119aa942a25470c60136e59f5f69e153f241502f1d2dbd861aa70a"`
[INFO] [stdout] 9c6c3e478e119aa942a25470c60136e59f5f69e153f241502f1d2dbd861aa70a