[INFO] updating cached repository gabriel-letarte/rust-exercises
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gabriel-letarte/rust-exercises
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gabriel-letarte/rust-exercises" "work/ex/beta-1.38-1/sources/1.37.0/gh/gabriel-letarte/rust-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gabriel-letarte/rust-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gabriel-letarte/rust-exercises" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gabriel-letarte/rust-exercises"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gabriel-letarte/rust-exercises'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f503559130ecbbae9b75cacd2e5880f339b2208
[INFO] sha for GitHub repo gabriel-letarte/rust-exercises: 4f503559130ecbbae9b75cacd2e5880f339b2208
[INFO] validating manifest of gabriel-letarte/rust-exercises 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 gabriel-letarte/rust-exercises 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 gabriel-letarte/rust-exercises
[INFO] finished frobbing gabriel-letarte/rust-exercises
[INFO] frobbed toml for gabriel-letarte/rust-exercises written to work/ex/beta-1.38-1/sources/1.37.0/gh/gabriel-letarte/rust-exercises/Cargo.toml
[INFO] started frobbing gabriel-letarte/rust-exercises
[INFO] finished frobbing gabriel-letarte/rust-exercises
[INFO] frobbed toml for gabriel-letarte/rust-exercises written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gabriel-letarte/rust-exercises/Cargo.toml
[INFO] crate gabriel-letarte/rust-exercises 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 gabriel-letarte/rust-exercises 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-3/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/gabriel-letarte/rust-exercises:/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] 2801fd097a4dd25a3ac1be62b39b0b6e1b6e4c6c942173667fb72899419d62c4
[INFO] running `"docker" "start" "-a" "2801fd097a4dd25a3ac1be62b39b0b6e1b6e4c6c942173667fb72899419d62c4"`
[INFO] [stderr]    Compiling rust-exercises v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "2801fd097a4dd25a3ac1be62b39b0b6e1b6e4c6c942173667fb72899419d62c4"`
[INFO] running `"docker" "rm" "-f" "2801fd097a4dd25a3ac1be62b39b0b6e1b6e4c6c942173667fb72899419d62c4"`
[INFO] [stdout] 2801fd097a4dd25a3ac1be62b39b0b6e1b6e4c6c942173667fb72899419d62c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/gabriel-letarte/rust-exercises:/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] 785ecb21de382722750b1d3379ba3ef45a3d25a4ccf56a3aed0e17a16a4fba03
[INFO] running `"docker" "start" "-a" "785ecb21de382722750b1d3379ba3ef45a3d25a4ccf56a3aed0e17a16a4fba03"`
[INFO] [stderr]    Compiling rust-exercises v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "785ecb21de382722750b1d3379ba3ef45a3d25a4ccf56a3aed0e17a16a4fba03"`
[INFO] running `"docker" "rm" "-f" "785ecb21de382722750b1d3379ba3ef45a3d25a4ccf56a3aed0e17a16a4fba03"`
[INFO] [stdout] 785ecb21de382722750b1d3379ba3ef45a3d25a4ccf56a3aed0e17a16a4fba03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/gabriel-letarte/rust-exercises:/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] 9a4eed52f33653f2335bc80445e2029fa2ad85908a54388ffb24ed8ffa7d8127
[INFO] running `"docker" "start" "-a" "9a4eed52f33653f2335bc80445e2029fa2ad85908a54388ffb24ed8ffa7d8127"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/exercises-52ad76342de7a707
[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" "9a4eed52f33653f2335bc80445e2029fa2ad85908a54388ffb24ed8ffa7d8127"`
[INFO] running `"docker" "rm" "-f" "9a4eed52f33653f2335bc80445e2029fa2ad85908a54388ffb24ed8ffa7d8127"`
[INFO] [stdout] 9a4eed52f33653f2335bc80445e2029fa2ad85908a54388ffb24ed8ffa7d8127