[INFO] updating cached repository luciusmagn/stackbomb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/luciusmagn/stackbomb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/luciusmagn/stackbomb" "work/ex/beta-1.37-6/sources/1.36.0/gh/luciusmagn/stackbomb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/luciusmagn/stackbomb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/luciusmagn/stackbomb" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/luciusmagn/stackbomb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/luciusmagn/stackbomb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a065793f5e8e8abe2458856630bcabc433f3b651
[INFO] sha for GitHub repo luciusmagn/stackbomb: a065793f5e8e8abe2458856630bcabc433f3b651
[INFO] validating manifest of luciusmagn/stackbomb 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 luciusmagn/stackbomb 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 luciusmagn/stackbomb
[INFO] finished frobbing luciusmagn/stackbomb
[INFO] frobbed toml for luciusmagn/stackbomb written to work/ex/beta-1.37-6/sources/1.36.0/gh/luciusmagn/stackbomb/Cargo.toml
[INFO] started frobbing luciusmagn/stackbomb
[INFO] finished frobbing luciusmagn/stackbomb
[INFO] frobbed toml for luciusmagn/stackbomb written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/luciusmagn/stackbomb/Cargo.toml
[INFO] crate luciusmagn/stackbomb 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] testing luciusmagn/stackbomb 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-5/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/luciusmagn/stackbomb:/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] 65af69c0bfb3014d5a0e490b9ba59cc4537ec6d44bf48f33e7d035b7a5c145db
[INFO] running `"docker" "start" "-a" "65af69c0bfb3014d5a0e490b9ba59cc4537ec6d44bf48f33e7d035b7a5c145db"`
[INFO] [stderr]    Compiling stackbomb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn f(n: i32)
[INFO] [stderr]   | ^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 9 |     f(n+1);
[INFO] [stderr]   |     ------ recursive call site
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unconditional_recursion)] on by default
[INFO] [stderr]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "65af69c0bfb3014d5a0e490b9ba59cc4537ec6d44bf48f33e7d035b7a5c145db"`
[INFO] running `"docker" "rm" "-f" "65af69c0bfb3014d5a0e490b9ba59cc4537ec6d44bf48f33e7d035b7a5c145db"`
[INFO] [stdout] 65af69c0bfb3014d5a0e490b9ba59cc4537ec6d44bf48f33e7d035b7a5c145db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/luciusmagn/stackbomb:/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] 44607b180d4244197162db3180add0245e2d1302bd75b14d07b436b9967c3ac9
[INFO] running `"docker" "start" "-a" "44607b180d4244197162db3180add0245e2d1302bd75b14d07b436b9967c3ac9"`
[INFO] [stderr]    Compiling stackbomb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn f(n: i32)
[INFO] [stderr]   | ^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 9 |     f(n+1);
[INFO] [stderr]   |     ------ recursive call site
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unconditional_recursion)] on by default
[INFO] [stderr]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `"docker" "inspect" "44607b180d4244197162db3180add0245e2d1302bd75b14d07b436b9967c3ac9"`
[INFO] running `"docker" "rm" "-f" "44607b180d4244197162db3180add0245e2d1302bd75b14d07b436b9967c3ac9"`
[INFO] [stdout] 44607b180d4244197162db3180add0245e2d1302bd75b14d07b436b9967c3ac9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/luciusmagn/stackbomb:/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] 4312912c78e200c80e7ee338bfa4c40c0e7a4ff40c82aa544385000433f9a4f9
[INFO] running `"docker" "start" "-a" "4312912c78e200c80e7ee338bfa4c40c0e7a4ff40c82aa544385000433f9a4f9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/stackbomb-92aa2f835d54668c
[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" "4312912c78e200c80e7ee338bfa4c40c0e7a4ff40c82aa544385000433f9a4f9"`
[INFO] running `"docker" "rm" "-f" "4312912c78e200c80e7ee338bfa4c40c0e7a4ff40c82aa544385000433f9a4f9"`
[INFO] [stdout] 4312912c78e200c80e7ee338bfa4c40c0e7a4ff40c82aa544385000433f9a4f9