[INFO] updating cached repository Dacode45/letters
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dacode45/letters
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dacode45/letters" "work/ex/beta-1.38-1/sources/1.37.0/gh/Dacode45/letters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Dacode45/letters'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dacode45/letters" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dacode45/letters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dacode45/letters'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6036a0ce9141d235a357cb14e0cbbe5f5cf1f60c
[INFO] sha for GitHub repo Dacode45/letters: 6036a0ce9141d235a357cb14e0cbbe5f5cf1f60c
[INFO] validating manifest of Dacode45/letters 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 Dacode45/letters 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 Dacode45/letters
[INFO] finished frobbing Dacode45/letters
[INFO] frobbed toml for Dacode45/letters written to work/ex/beta-1.38-1/sources/1.37.0/gh/Dacode45/letters/Cargo.toml
[INFO] started frobbing Dacode45/letters
[INFO] finished frobbing Dacode45/letters
[INFO] frobbed toml for Dacode45/letters written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Dacode45/letters/Cargo.toml
[INFO] crate Dacode45/letters 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 Dacode45/letters 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dacode45/letters:/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] de8c14a3c7ccabbac741cdbaaff949e8a16c5569549a7cd3a4ce6ac818cd2e6b
[INFO] running `"docker" "start" "-a" "de8c14a3c7ccabbac741cdbaaff949e8a16c5569549a7cd3a4ce6ac818cd2e6b"`
[INFO] [stderr]    Compiling letters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "de8c14a3c7ccabbac741cdbaaff949e8a16c5569549a7cd3a4ce6ac818cd2e6b"`
[INFO] running `"docker" "rm" "-f" "de8c14a3c7ccabbac741cdbaaff949e8a16c5569549a7cd3a4ce6ac818cd2e6b"`
[INFO] [stdout] de8c14a3c7ccabbac741cdbaaff949e8a16c5569549a7cd3a4ce6ac818cd2e6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dacode45/letters:/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] 2e58ae0d71ce1b619783f0c618b5aa603a56e19c11fd67b9ff0f353e1b8c2dd3
[INFO] running `"docker" "start" "-a" "2e58ae0d71ce1b619783f0c618b5aa603a56e19c11fd67b9ff0f353e1b8c2dd3"`
[INFO] [stderr]    Compiling letters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "2e58ae0d71ce1b619783f0c618b5aa603a56e19c11fd67b9ff0f353e1b8c2dd3"`
[INFO] running `"docker" "rm" "-f" "2e58ae0d71ce1b619783f0c618b5aa603a56e19c11fd67b9ff0f353e1b8c2dd3"`
[INFO] [stdout] 2e58ae0d71ce1b619783f0c618b5aa603a56e19c11fd67b9ff0f353e1b8c2dd3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Dacode45/letters:/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] 4cb3b1f80da0aff37739963963a9543146aa1c8547a4005c68c928847e3f99d7
[INFO] running `"docker" "start" "-a" "4cb3b1f80da0aff37739963963a9543146aa1c8547a4005c68c928847e3f99d7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/letters-78e0df3d8ebfbf34
[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" "4cb3b1f80da0aff37739963963a9543146aa1c8547a4005c68c928847e3f99d7"`
[INFO] running `"docker" "rm" "-f" "4cb3b1f80da0aff37739963963a9543146aa1c8547a4005c68c928847e3f99d7"`
[INFO] [stdout] 4cb3b1f80da0aff37739963963a9543146aa1c8547a4005c68c928847e3f99d7