[INFO] updating cached repository iThinkyouknow/tensor-git
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/iThinkyouknow/tensor-git
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/iThinkyouknow/tensor-git" "work/ex/beta-1.38-1/sources/1.37.0/gh/iThinkyouknow/tensor-git"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/iThinkyouknow/tensor-git'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iThinkyouknow/tensor-git" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iThinkyouknow/tensor-git"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iThinkyouknow/tensor-git'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8cbcce808e874c72a15f13ce8c8dc4071baa8285
[INFO] sha for GitHub repo iThinkyouknow/tensor-git: 8cbcce808e874c72a15f13ce8c8dc4071baa8285
[INFO] validating manifest of iThinkyouknow/tensor-git 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 iThinkyouknow/tensor-git 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 iThinkyouknow/tensor-git
[INFO] finished frobbing iThinkyouknow/tensor-git
[INFO] frobbed toml for iThinkyouknow/tensor-git written to work/ex/beta-1.38-1/sources/1.37.0/gh/iThinkyouknow/tensor-git/Cargo.toml
[INFO] started frobbing iThinkyouknow/tensor-git
[INFO] finished frobbing iThinkyouknow/tensor-git
[INFO] frobbed toml for iThinkyouknow/tensor-git written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iThinkyouknow/tensor-git/Cargo.toml
[INFO] crate iThinkyouknow/tensor-git 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 iThinkyouknow/tensor-git 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-6/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/iThinkyouknow/tensor-git:/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] e5b1102deb408076a7b7aac6bca673f0f778f08330c186640c83a5295d9cf216
[INFO] running `"docker" "start" "-a" "e5b1102deb408076a7b7aac6bca673f0f778f08330c186640c83a5295d9cf216"`
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling regex v1.1.7
[INFO] [stderr]    Compiling tensor-git v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/file.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         Ok(current_dir)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCommit`
[INFO] [stderr]  --> src/error.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     InvalidCommit,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Tree`
[INFO] [stderr]  --> src/types.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum Tree {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/index.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/index.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |             writeln!(&mut index, "{} {}", hash, path);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.14s
[INFO] running `"docker" "inspect" "e5b1102deb408076a7b7aac6bca673f0f778f08330c186640c83a5295d9cf216"`
[INFO] running `"docker" "rm" "-f" "e5b1102deb408076a7b7aac6bca673f0f778f08330c186640c83a5295d9cf216"`
[INFO] [stdout] e5b1102deb408076a7b7aac6bca673f0f778f08330c186640c83a5295d9cf216
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/iThinkyouknow/tensor-git:/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] 04235ea19f55bd9396294080827eaf33ce445a20208a538abb848b6e189d131c
[INFO] running `"docker" "start" "-a" "04235ea19f55bd9396294080827eaf33ce445a20208a538abb848b6e189d131c"`
[INFO] [stderr]    Compiling tensor-git v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/file.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         Ok(current_dir)
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidCommit`
[INFO] [stderr]  --> src/error.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     InvalidCommit,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Tree`
[INFO] [stderr]  --> src/types.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub enum Tree {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print`
[INFO] [stderr]   --> src/index.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     pub fn print(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/index.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |             writeln!(&mut index, "{} {}", hash, path);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `"docker" "inspect" "04235ea19f55bd9396294080827eaf33ce445a20208a538abb848b6e189d131c"`
[INFO] running `"docker" "rm" "-f" "04235ea19f55bd9396294080827eaf33ce445a20208a538abb848b6e189d131c"`
[INFO] [stdout] 04235ea19f55bd9396294080827eaf33ce445a20208a538abb848b6e189d131c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/iThinkyouknow/tensor-git:/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] 389e42933fd3cda404acd548a10b936544cbf9f07f24d4aab8ca963b66f6a55e
[INFO] running `"docker" "start" "-a" "389e42933fd3cda404acd548a10b936544cbf9f07f24d4aab8ca963b66f6a55e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tensor_git-5271f2e933d156ca
[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" "389e42933fd3cda404acd548a10b936544cbf9f07f24d4aab8ca963b66f6a55e"`
[INFO] running `"docker" "rm" "-f" "389e42933fd3cda404acd548a10b936544cbf9f07f24d4aab8ca963b66f6a55e"`
[INFO] [stdout] 389e42933fd3cda404acd548a10b936544cbf9f07f24d4aab8ca963b66f6a55e