[INFO] updating cached repository trevorkirpaul/rust_learning
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/trevorkirpaul/rust_learning
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/trevorkirpaul/rust_learning" "work/ex/beta-1.38-1/sources/1.37.0/gh/trevorkirpaul/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/trevorkirpaul/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/trevorkirpaul/rust_learning" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/trevorkirpaul/rust_learning"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/trevorkirpaul/rust_learning'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3fc61cd5e23b2dab9ec312239ce24d95cb8e898e
[INFO] sha for GitHub repo trevorkirpaul/rust_learning: 3fc61cd5e23b2dab9ec312239ce24d95cb8e898e
[INFO] validating manifest of trevorkirpaul/rust_learning 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 trevorkirpaul/rust_learning 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 trevorkirpaul/rust_learning
[INFO] finished frobbing trevorkirpaul/rust_learning
[INFO] frobbed toml for trevorkirpaul/rust_learning written to work/ex/beta-1.38-1/sources/1.37.0/gh/trevorkirpaul/rust_learning/Cargo.toml
[INFO] started frobbing trevorkirpaul/rust_learning
[INFO] finished frobbing trevorkirpaul/rust_learning
[INFO] frobbed toml for trevorkirpaul/rust_learning written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/trevorkirpaul/rust_learning/Cargo.toml
[INFO] crate trevorkirpaul/rust_learning 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 trevorkirpaul/rust_learning 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/trevorkirpaul/rust_learning:/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] 280f4c87c8854e2f72c506458b2135f66dbf69117cc98eef6fff75386aa57e8c
[INFO] running `"docker" "start" "-a" "280f4c87c8854e2f72c506458b2135f66dbf69117cc98eef6fff75386aa57e8c"`
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "280f4c87c8854e2f72c506458b2135f66dbf69117cc98eef6fff75386aa57e8c"`
[INFO] running `"docker" "rm" "-f" "280f4c87c8854e2f72c506458b2135f66dbf69117cc98eef6fff75386aa57e8c"`
[INFO] [stdout] 280f4c87c8854e2f72c506458b2135f66dbf69117cc98eef6fff75386aa57e8c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/trevorkirpaul/rust_learning:/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] 11698f9560249c9ceda8a5f9e5b55f0d9d54ab04670043cbadaa6ef392edc4f6
[INFO] running `"docker" "start" "-a" "11698f9560249c9ceda8a5f9e5b55f0d9d54ab04670043cbadaa6ef392edc4f6"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "11698f9560249c9ceda8a5f9e5b55f0d9d54ab04670043cbadaa6ef392edc4f6"`
[INFO] running `"docker" "rm" "-f" "11698f9560249c9ceda8a5f9e5b55f0d9d54ab04670043cbadaa6ef392edc4f6"`
[INFO] [stdout] 11698f9560249c9ceda8a5f9e5b55f0d9d54ab04670043cbadaa6ef392edc4f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/trevorkirpaul/rust_learning:/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] bdbc08ba86264c573ce41ec9fcda22a384f688a79536ac272075e859f2116493
[INFO] running `"docker" "start" "-a" "bdbc08ba86264c573ce41ec9fcda22a384f688a79536ac272075e859f2116493"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-e41ddfde67f329c8
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "bdbc08ba86264c573ce41ec9fcda22a384f688a79536ac272075e859f2116493"`
[INFO] running `"docker" "rm" "-f" "bdbc08ba86264c573ce41ec9fcda22a384f688a79536ac272075e859f2116493"`
[INFO] [stdout] bdbc08ba86264c573ce41ec9fcda22a384f688a79536ac272075e859f2116493