[INFO] updating cached repository richardanaya/callback
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/richardanaya/callback
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/richardanaya/callback" "work/ex/beta-1.37-6/sources/1.36.0/gh/richardanaya/callback"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/richardanaya/callback'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/richardanaya/callback" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/richardanaya/callback"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/richardanaya/callback'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 085e2137422f20f7d401c1f0a9835a451fad2dbc
[INFO] sha for GitHub repo richardanaya/callback: 085e2137422f20f7d401c1f0a9835a451fad2dbc
[INFO] validating manifest of richardanaya/callback on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of richardanaya/callback on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing richardanaya/callback
[INFO] finished frobbing richardanaya/callback
[INFO] frobbed toml for richardanaya/callback written to work/ex/beta-1.37-6/sources/1.36.0/gh/richardanaya/callback/Cargo.toml
[INFO] started frobbing richardanaya/callback
[INFO] finished frobbing richardanaya/callback
[INFO] frobbed toml for richardanaya/callback written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/richardanaya/callback/Cargo.toml
[INFO] crate richardanaya/callback already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing richardanaya/callback against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/richardanaya/callback:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b991b326d1f52d8efdd6dd16da50dd4a2f98e30cd12755c483da9fe48e3bd23b
[INFO] running `"docker" "start" "-a" "b991b326d1f52d8efdd6dd16da50dd4a2f98e30cd12755c483da9fe48e3bd23b"`
[INFO] [stderr]    Compiling callback v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "b991b326d1f52d8efdd6dd16da50dd4a2f98e30cd12755c483da9fe48e3bd23b"`
[INFO] running `"docker" "rm" "-f" "b991b326d1f52d8efdd6dd16da50dd4a2f98e30cd12755c483da9fe48e3bd23b"`
[INFO] [stdout] b991b326d1f52d8efdd6dd16da50dd4a2f98e30cd12755c483da9fe48e3bd23b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/richardanaya/callback:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 53f6103bb3cd39e0ad8883705aab8edc9f0c5a2cb06724597c8525dece04e8d1
[INFO] running `"docker" "start" "-a" "53f6103bb3cd39e0ad8883705aab8edc9f0c5a2cb06724597c8525dece04e8d1"`
[INFO] [stderr]    Compiling callback v0.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "53f6103bb3cd39e0ad8883705aab8edc9f0c5a2cb06724597c8525dece04e8d1"`
[INFO] running `"docker" "rm" "-f" "53f6103bb3cd39e0ad8883705aab8edc9f0c5a2cb06724597c8525dece04e8d1"`
[INFO] [stdout] 53f6103bb3cd39e0ad8883705aab8edc9f0c5a2cb06724597c8525dece04e8d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/richardanaya/callback:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 51014c93ac4697ab168f840194a99bb44cadc5877b9c4ef67b8afa9ec41bba9d
[INFO] running `"docker" "start" "-a" "51014c93ac4697ab168f840194a99bb44cadc5877b9c4ef67b8afa9ec41bba9d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/callback-e6c2e697178b0063
[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] [stderr]    Doc-tests callback
[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" "51014c93ac4697ab168f840194a99bb44cadc5877b9c4ef67b8afa9ec41bba9d"`
[INFO] running `"docker" "rm" "-f" "51014c93ac4697ab168f840194a99bb44cadc5877b9c4ef67b8afa9ec41bba9d"`
[INFO] [stdout] 51014c93ac4697ab168f840194a99bb44cadc5877b9c4ef67b8afa9ec41bba9d