[INFO] updating cached repository webbrandon/mc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/webbrandon/mc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/webbrandon/mc" "work/ex/beta-1.38-1/sources/1.37.0/gh/webbrandon/mc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/webbrandon/mc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/webbrandon/mc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/webbrandon/mc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/webbrandon/mc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a77dbf321f3b5b59e84540aa6c4b746436982c3e
[INFO] sha for GitHub repo webbrandon/mc: a77dbf321f3b5b59e84540aa6c4b746436982c3e
[INFO] validating manifest of webbrandon/mc 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 webbrandon/mc 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 webbrandon/mc
[INFO] finished frobbing webbrandon/mc
[INFO] frobbed toml for webbrandon/mc written to work/ex/beta-1.38-1/sources/1.37.0/gh/webbrandon/mc/Cargo.toml
[INFO] started frobbing webbrandon/mc
[INFO] finished frobbing webbrandon/mc
[INFO] frobbed toml for webbrandon/mc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/webbrandon/mc/Cargo.toml
[INFO] crate webbrandon/mc 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 webbrandon/mc 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-2/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/webbrandon/mc:/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] c599a391ca7bda3f1db095c53f9ab5e17ad8554e106a80639f6826721d53e4d3
[INFO] running `"docker" "start" "-a" "c599a391ca7bda3f1db095c53f9ab5e17ad8554e106a80639f6826721d53e4d3"`
[INFO] [stderr]    Compiling cc v1.0.27
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling clicolors-control v0.3.1
[INFO] [stderr]    Compiling users v0.8.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling mc v0.5.7 (/opt/crater/workdir)
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling run_script v0.2.5
[INFO] [stderr]    Compiling pest_meta v2.0.3
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling parking_lot v0.7.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.26
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling curl-sys v0.4.16
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling console v0.7.1
[INFO] [stderr]    Compiling pest_generator v2.0.0
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling dialoguer v0.3.0
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling dotenv v0.13.0
[INFO] [stderr]    Compiling pest_derive v2.0.1
[INFO] [stderr]    Compiling serde_json v1.0.38
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling git2 v0.8.0
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/handler/repository/mod.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     env::set_current_dir(&git_dir).is_ok();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/handler/repository/mod.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |                     env::set_current_dir(&git_dir).is_ok();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 12s
[INFO] running `"docker" "inspect" "c599a391ca7bda3f1db095c53f9ab5e17ad8554e106a80639f6826721d53e4d3"`
[INFO] running `"docker" "rm" "-f" "c599a391ca7bda3f1db095c53f9ab5e17ad8554e106a80639f6826721d53e4d3"`
[INFO] [stdout] c599a391ca7bda3f1db095c53f9ab5e17ad8554e106a80639f6826721d53e4d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/webbrandon/mc:/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] f8a2ac416ad597048bedd04db6563c48af0c73c88fe931bb5bde2c8b720afd0c
[INFO] running `"docker" "start" "-a" "f8a2ac416ad597048bedd04db6563c48af0c73c88fe931bb5bde2c8b720afd0c"`
[INFO] [stderr]    Compiling mc v0.5.7 (/opt/crater/workdir)
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/handler/repository/mod.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     env::set_current_dir(&git_dir).is_ok();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/handler/repository/mod.rs:32:21
[INFO] [stderr]    |
[INFO] [stderr] 32 |                     env::set_current_dir(&git_dir).is_ok();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "f8a2ac416ad597048bedd04db6563c48af0c73c88fe931bb5bde2c8b720afd0c"`
[INFO] running `"docker" "rm" "-f" "f8a2ac416ad597048bedd04db6563c48af0c73c88fe931bb5bde2c8b720afd0c"`
[INFO] [stdout] f8a2ac416ad597048bedd04db6563c48af0c73c88fe931bb5bde2c8b720afd0c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/webbrandon/mc:/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] c5406b1e27e697126bb6c5c85642870f062f54e6d1e4b2422bba12179e21e5ee
[INFO] running `"docker" "start" "-a" "c5406b1e27e697126bb6c5c85642870f062f54e6d1e4b2422bba12179e21e5ee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mc-074e463b74f04e15
[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" "c5406b1e27e697126bb6c5c85642870f062f54e6d1e4b2422bba12179e21e5ee"`
[INFO] running `"docker" "rm" "-f" "c5406b1e27e697126bb6c5c85642870f062f54e6d1e4b2422bba12179e21e5ee"`
[INFO] [stdout] c5406b1e27e697126bb6c5c85642870f062f54e6d1e4b2422bba12179e21e5ee