[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 beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] a92b8cfd737a6d2e2308901b018c055ebf83648633b9ad6353a1cbcdef123dfd
[INFO] running `"docker" "start" "-a" "a92b8cfd737a6d2e2308901b018c055ebf83648633b9ad6353a1cbcdef123dfd"`
[INFO] [stderr]    Compiling callback v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:3:51
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub static mut CALLBACKS: Option<HashMap<i32, Box<Fn(i32)>>> = None;
[INFO] [stderr]   |                                                   ^^^^^^^ help: use `dyn`: `dyn Fn(i32)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "a92b8cfd737a6d2e2308901b018c055ebf83648633b9ad6353a1cbcdef123dfd"`
[INFO] running `"docker" "rm" "-f" "a92b8cfd737a6d2e2308901b018c055ebf83648633b9ad6353a1cbcdef123dfd"`
[INFO] [stdout] a92b8cfd737a6d2e2308901b018c055ebf83648633b9ad6353a1cbcdef123dfd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7bca84ee1015a4f21442e029de51e28ecde895ab713a02b1a7d3fd8c75865643
[INFO] running `"docker" "start" "-a" "7bca84ee1015a4f21442e029de51e28ecde895ab713a02b1a7d3fd8c75865643"`
[INFO] [stderr]    Compiling callback v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:3:51
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub static mut CALLBACKS: Option<HashMap<i32, Box<Fn(i32)>>> = None;
[INFO] [stderr]   |                                                   ^^^^^^^ help: use `dyn`: `dyn Fn(i32)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "7bca84ee1015a4f21442e029de51e28ecde895ab713a02b1a7d3fd8c75865643"`
[INFO] running `"docker" "rm" "-f" "7bca84ee1015a4f21442e029de51e28ecde895ab713a02b1a7d3fd8c75865643"`
[INFO] [stdout] 7bca84ee1015a4f21442e029de51e28ecde895ab713a02b1a7d3fd8c75865643
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] ddd7977fbbfb53e4081cefc45a25427d56c82a0897bf71d639971cebd6cd4da8
[INFO] running `"docker" "start" "-a" "ddd7977fbbfb53e4081cefc45a25427d56c82a0897bf71d639971cebd6cd4da8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/callback-1a2a4ba903091b4d
[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" "ddd7977fbbfb53e4081cefc45a25427d56c82a0897bf71d639971cebd6cd4da8"`
[INFO] running `"docker" "rm" "-f" "ddd7977fbbfb53e4081cefc45a25427d56c82a0897bf71d639971cebd6cd4da8"`
[INFO] [stdout] ddd7977fbbfb53e4081cefc45a25427d56c82a0897bf71d639971cebd6cd4da8