[INFO] updating cached repository Gerqus/learing-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Gerqus/learing-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Gerqus/learing-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/Gerqus/learing-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Gerqus/learing-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Gerqus/learing-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Gerqus/learing-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Gerqus/learing-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 853223279cb4ab060629c5c5822c646565da319f
[INFO] sha for GitHub repo Gerqus/learing-rust: 853223279cb4ab060629c5c5822c646565da319f
[INFO] validating manifest of Gerqus/learing-rust 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 Gerqus/learing-rust 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 Gerqus/learing-rust
[INFO] finished frobbing Gerqus/learing-rust
[INFO] frobbed toml for Gerqus/learing-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/Gerqus/learing-rust/Cargo.toml
[INFO] started frobbing Gerqus/learing-rust
[INFO] finished frobbing Gerqus/learing-rust
[INFO] frobbed toml for Gerqus/learing-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Gerqus/learing-rust/Cargo.toml
[INFO] crate Gerqus/learing-rust 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Gerqus/learing-rust 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-7/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/Gerqus/learing-rust:/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] f735fc051ad8d14b182a1c5aad25313bb443828c5e9d0758808f45bdea7dab20
[INFO] running `"docker" "start" "-a" "f735fc051ad8d14b182a1c5aad25313bb443828c5e9d0758808f45bdea7dab20"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "f735fc051ad8d14b182a1c5aad25313bb443828c5e9d0758808f45bdea7dab20"`
[INFO] running `"docker" "rm" "-f" "f735fc051ad8d14b182a1c5aad25313bb443828c5e9d0758808f45bdea7dab20"`
[INFO] [stdout] f735fc051ad8d14b182a1c5aad25313bb443828c5e9d0758808f45bdea7dab20
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/Gerqus/learing-rust:/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] 57fc8a9f808cbd6ca8caed4ef9372a54dc6cd6c87b61cd8ff05d7d646bdb8c2f
[INFO] running `"docker" "start" "-a" "57fc8a9f808cbd6ca8caed4ef9372a54dc6cd6c87b61cd8ff05d7d646bdb8c2f"`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "57fc8a9f808cbd6ca8caed4ef9372a54dc6cd6c87b61cd8ff05d7d646bdb8c2f"`
[INFO] running `"docker" "rm" "-f" "57fc8a9f808cbd6ca8caed4ef9372a54dc6cd6c87b61cd8ff05d7d646bdb8c2f"`
[INFO] [stdout] 57fc8a9f808cbd6ca8caed4ef9372a54dc6cd6c87b61cd8ff05d7d646bdb8c2f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/Gerqus/learing-rust:/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] d71bc83b2b0856fb1b1b515a8fcd3051f25f95231f4cf1124b34ddfed63d5bac
[INFO] running `"docker" "start" "-a" "d71bc83b2b0856fb1b1b515a8fcd3051f25f95231f4cf1124b34ddfed63d5bac"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/learning-c8a3091e1d2783e5
[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" "d71bc83b2b0856fb1b1b515a8fcd3051f25f95231f4cf1124b34ddfed63d5bac"`
[INFO] running `"docker" "rm" "-f" "d71bc83b2b0856fb1b1b515a8fcd3051f25f95231f4cf1124b34ddfed63d5bac"`
[INFO] [stdout] d71bc83b2b0856fb1b1b515a8fcd3051f25f95231f4cf1124b34ddfed63d5bac