[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-1.38-1/sources/1.37.0/gh/v4run/rust_crash_course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/v4run/rust_crash_course'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/v4run/rust_crash_course" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/v4run/rust_crash_course"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of v4run/rust_crash_course 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 v4run/rust_crash_course
[INFO] finished frobbing v4run/rust_crash_course
[INFO] frobbed toml for v4run/rust_crash_course written to work/ex/beta-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "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 v4run/rust_crash_course against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 787f234c4cfdc8f325ea763628ecbcce504586b86644af31b8de8f345c485517
[INFO] running `"docker" "start" "-a" "787f234c4cfdc8f325ea763628ecbcce504586b86644af31b8de8f345c485517"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "787f234c4cfdc8f325ea763628ecbcce504586b86644af31b8de8f345c485517"`
[INFO] running `"docker" "rm" "-f" "787f234c4cfdc8f325ea763628ecbcce504586b86644af31b8de8f345c485517"`
[INFO] [stdout] 787f234c4cfdc8f325ea763628ecbcce504586b86644af31b8de8f345c485517
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] bcbed5c1180e4fe2f001071958b4bbd6e5e0cb1701a80ca041fe19801aa88faa
[INFO] running `"docker" "start" "-a" "bcbed5c1180e4fe2f001071958b4bbd6e5e0cb1701a80ca041fe19801aa88faa"`
[INFO] [stderr]    Compiling rust_crash_course v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "bcbed5c1180e4fe2f001071958b4bbd6e5e0cb1701a80ca041fe19801aa88faa"`
[INFO] running `"docker" "rm" "-f" "bcbed5c1180e4fe2f001071958b4bbd6e5e0cb1701a80ca041fe19801aa88faa"`
[INFO] [stdout] bcbed5c1180e4fe2f001071958b4bbd6e5e0cb1701a80ca041fe19801aa88faa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] b0a0155eedafc7bcf996cd05b59d7b279cdf7faf6c605fac8dabdd7198824d80
[INFO] running `"docker" "start" "-a" "b0a0155eedafc7bcf996cd05b59d7b279cdf7faf6c605fac8dabdd7198824d80"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_crash_course-d253095f445e526d
[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" "b0a0155eedafc7bcf996cd05b59d7b279cdf7faf6c605fac8dabdd7198824d80"`
[INFO] running `"docker" "rm" "-f" "b0a0155eedafc7bcf996cd05b59d7b279cdf7faf6c605fac8dabdd7198824d80"`
[INFO] [stdout] b0a0155eedafc7bcf996cd05b59d7b279cdf7faf6c605fac8dabdd7198824d80