[INFO] updating cached repository v4run/rust_crash_course
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/v4run/rust_crash_course
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/v4run/rust_crash_course" "work/ex/beta-1.37-6/sources/1.36.0/gh/v4run/rust_crash_course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/v4run/rust_crash_course'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/v4run/rust_crash_course" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/v4run/rust_crash_course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/v4run/rust_crash_course'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c57135ab75114647f9b0c13391e0ac579cd2f7b
[INFO] sha for GitHub repo v4run/rust_crash_course: 8c57135ab75114647f9b0c13391e0ac579cd2f7b
[INFO] validating manifest of v4run/rust_crash_course 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 v4run/rust_crash_course 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 v4run/rust_crash_course
[INFO] finished frobbing v4run/rust_crash_course
[INFO] frobbed toml for v4run/rust_crash_course written to work/ex/beta-1.37-6/sources/1.36.0/gh/v4run/rust_crash_course/Cargo.toml
[INFO] started frobbing v4run/rust_crash_course
[INFO] finished frobbing v4run/rust_crash_course
[INFO] frobbed toml for v4run/rust_crash_course written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/v4run/rust_crash_course/Cargo.toml
[INFO] crate v4run/rust_crash_course 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing v4run/rust_crash_course 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-2/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/v4run/rust_crash_course:/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] 231e0ef91bfa55275cffcdeaf9098c6925a5f378119a28ff7010c94db6476f35
[INFO] running `"docker" "start" "-a" "231e0ef91bfa55275cffcdeaf9098c6925a5f378119a28ff7010c94db6476f35"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "231e0ef91bfa55275cffcdeaf9098c6925a5f378119a28ff7010c94db6476f35"`
[INFO] running `"docker" "rm" "-f" "231e0ef91bfa55275cffcdeaf9098c6925a5f378119a28ff7010c94db6476f35"`
[INFO] [stdout] 231e0ef91bfa55275cffcdeaf9098c6925a5f378119a28ff7010c94db6476f35
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/v4run/rust_crash_course:/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] 71faabffcb42a31c015f00a65c2261de5d3c125857cc650f2b08bb87c07b6ad1
[INFO] running `"docker" "start" "-a" "71faabffcb42a31c015f00a65c2261de5d3c125857cc650f2b08bb87c07b6ad1"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "71faabffcb42a31c015f00a65c2261de5d3c125857cc650f2b08bb87c07b6ad1"`
[INFO] running `"docker" "rm" "-f" "71faabffcb42a31c015f00a65c2261de5d3c125857cc650f2b08bb87c07b6ad1"`
[INFO] [stdout] 71faabffcb42a31c015f00a65c2261de5d3c125857cc650f2b08bb87c07b6ad1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/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/v4run/rust_crash_course:/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] 6fbd2c3eb76495c92702d3ce7db1b657be3b838d0ef1a6ae282e5ffbe778a11f
[INFO] running `"docker" "start" "-a" "6fbd2c3eb76495c92702d3ce7db1b657be3b838d0ef1a6ae282e5ffbe778a11f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_crash_course-3ddc9e2e7523da83
[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" "6fbd2c3eb76495c92702d3ce7db1b657be3b838d0ef1a6ae282e5ffbe778a11f"`
[INFO] running `"docker" "rm" "-f" "6fbd2c3eb76495c92702d3ce7db1b657be3b838d0ef1a6ae282e5ffbe778a11f"`
[INFO] [stdout] 6fbd2c3eb76495c92702d3ce7db1b657be3b838d0ef1a6ae282e5ffbe778a11f