[INFO] updating cached repository seb-odessa/callbacks
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/seb-odessa/callbacks
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/seb-odessa/callbacks" "work/ex/beta-1.38-1/sources/1.37.0/gh/seb-odessa/callbacks"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/seb-odessa/callbacks'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/seb-odessa/callbacks" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/seb-odessa/callbacks"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/seb-odessa/callbacks'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e016a3ada62ae4bf05b17a64233d3411111477c7
[INFO] sha for GitHub repo seb-odessa/callbacks: e016a3ada62ae4bf05b17a64233d3411111477c7
[INFO] validating manifest of seb-odessa/callbacks 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 seb-odessa/callbacks 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 seb-odessa/callbacks
[INFO] finished frobbing seb-odessa/callbacks
[INFO] frobbed toml for seb-odessa/callbacks written to work/ex/beta-1.38-1/sources/1.37.0/gh/seb-odessa/callbacks/Cargo.toml
[INFO] started frobbing seb-odessa/callbacks
[INFO] finished frobbing seb-odessa/callbacks
[INFO] frobbed toml for seb-odessa/callbacks written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/seb-odessa/callbacks/Cargo.toml
[INFO] crate seb-odessa/callbacks 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 seb-odessa/callbacks 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-0/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/seb-odessa/callbacks:/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] 23efe543ae90028919c10214e1ef0c35f2bfe0d337a78df3c957b503a7ebc19a
[INFO] running `"docker" "start" "-a" "23efe543ae90028919c10214e1ef0c35f2bfe0d337a78df3c957b503a7ebc19a"`
[INFO] [stderr]    Compiling callbacks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 |     callbacks : Vec<Box<FnMut(i32)>>,
[INFO] [stderr]   |                         ^^^^^^^^^^ help: use `dyn`: `dyn FnMut(i32)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn register(&mut self, callback : Box<FnMut(i32)>) {
[INFO] [stderr]   |                                               ^^^^^^^^^^ help: use `dyn`: `dyn FnMut(i32)`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "23efe543ae90028919c10214e1ef0c35f2bfe0d337a78df3c957b503a7ebc19a"`
[INFO] running `"docker" "rm" "-f" "23efe543ae90028919c10214e1ef0c35f2bfe0d337a78df3c957b503a7ebc19a"`
[INFO] [stdout] 23efe543ae90028919c10214e1ef0c35f2bfe0d337a78df3c957b503a7ebc19a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/seb-odessa/callbacks:/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] e1057ea0e2c3da7edda5aa66eccc6c450926a31ee88dfdde05412f7012ea6195
[INFO] running `"docker" "start" "-a" "e1057ea0e2c3da7edda5aa66eccc6c450926a31ee88dfdde05412f7012ea6195"`
[INFO] [stderr]    Compiling callbacks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 |     callbacks : Vec<Box<FnMut(i32)>>,
[INFO] [stderr]   |                         ^^^^^^^^^^ help: use `dyn`: `dyn FnMut(i32)`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn register(&mut self, callback : Box<FnMut(i32)>) {
[INFO] [stderr]   |                                               ^^^^^^^^^^ help: use `dyn`: `dyn FnMut(i32)`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `"docker" "inspect" "e1057ea0e2c3da7edda5aa66eccc6c450926a31ee88dfdde05412f7012ea6195"`
[INFO] running `"docker" "rm" "-f" "e1057ea0e2c3da7edda5aa66eccc6c450926a31ee88dfdde05412f7012ea6195"`
[INFO] [stdout] e1057ea0e2c3da7edda5aa66eccc6c450926a31ee88dfdde05412f7012ea6195
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/seb-odessa/callbacks:/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] 356cbbc958a0b52c9fc52604e5f2123b4d53183d1737bcea4a78dfd4bbe42039
[INFO] running `"docker" "start" "-a" "356cbbc958a0b52c9fc52604e5f2123b4d53183d1737bcea4a78dfd4bbe42039"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/callbacks-769db531d415ed6f
[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" "356cbbc958a0b52c9fc52604e5f2123b4d53183d1737bcea4a78dfd4bbe42039"`
[INFO] running `"docker" "rm" "-f" "356cbbc958a0b52c9fc52604e5f2123b4d53183d1737bcea4a78dfd4bbe42039"`
[INFO] [stdout] 356cbbc958a0b52c9fc52604e5f2123b4d53183d1737bcea4a78dfd4bbe42039