[INFO] updating cached repository l1h3r/butter
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/l1h3r/butter
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/l1h3r/butter" "work/ex/beta-1.37-6/sources/1.36.0/gh/l1h3r/butter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/l1h3r/butter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/l1h3r/butter" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/l1h3r/butter"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/l1h3r/butter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 964ae9639fa50c4591dcf04f10cd0034db72db9e
[INFO] sha for GitHub repo l1h3r/butter: 964ae9639fa50c4591dcf04f10cd0034db72db9e
[INFO] validating manifest of l1h3r/butter 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 l1h3r/butter 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 l1h3r/butter
[INFO] removed 0 missing examples
[INFO] finished frobbing l1h3r/butter
[INFO] frobbed toml for l1h3r/butter written to work/ex/beta-1.37-6/sources/1.36.0/gh/l1h3r/butter/Cargo.toml
[INFO] started frobbing l1h3r/butter
[INFO] removed 0 missing examples
[INFO] finished frobbing l1h3r/butter
[INFO] frobbed toml for l1h3r/butter written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/l1h3r/butter/Cargo.toml
[INFO] crate l1h3r/butter 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 l1h3r/butter 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/l1h3r/butter:/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] 7cb56783dd027d918dfac07b4e4b9bb6ce9baf52894c470dcba296a57d0ad0f0
[INFO] running `"docker" "start" "-a" "7cb56783dd027d918dfac07b4e4b9bb6ce9baf52894c470dcba296a57d0ad0f0"`
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling syn v0.15.25
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.8
[INFO] [stderr]    Compiling tokio-threadpool v0.1.10
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling tokio v0.1.14
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling hyper v0.12.20
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling reqwest v0.9.8
[INFO] [stderr]    Compiling crow v0.1.0 (https://github.com/l1h3r/crow?rev=5e7890bc5a752be9c59cf1aa058d14d3b11c1e5d#5e7890bc)
[INFO] [stderr]    Compiling butter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.81s
[INFO] running `"docker" "inspect" "7cb56783dd027d918dfac07b4e4b9bb6ce9baf52894c470dcba296a57d0ad0f0"`
[INFO] running `"docker" "rm" "-f" "7cb56783dd027d918dfac07b4e4b9bb6ce9baf52894c470dcba296a57d0ad0f0"`
[INFO] [stdout] 7cb56783dd027d918dfac07b4e4b9bb6ce9baf52894c470dcba296a57d0ad0f0
[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/l1h3r/butter:/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] a39ce1d8d808465abe0bba5d8cc409f3df4ed34cc06ef759e9935c050ef3e135
[INFO] running `"docker" "start" "-a" "a39ce1d8d808465abe0bba5d8cc409f3df4ed34cc06ef759e9935c050ef3e135"`
[INFO] [stderr]    Compiling butter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `butter`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --edition=2018 --crate-name butter src/lib.rs --color never --emit=dep-info,metadata,link -C debuginfo=2 --test -C metadata=900bb3534af4d946 -C extra-filename=-900bb3534af4d946 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern base64=/opt/crater/target/debug/deps/libbase64-7d9ae4ef3ba680cf.rlib --extern byteorder=/opt/crater/target/debug/deps/libbyteorder-93baff524b6b07af.rlib --extern crow=/opt/crater/target/debug/deps/libcrow-26431e4fbc615bbf.rlib --extern failure=/opt/crater/target/debug/deps/libfailure-5001b724a0a88d1e.rlib --extern lazy_static=/opt/crater/target/debug/deps/liblazy_static-ab49020bde3ad45f.rlib --extern openssl=/opt/crater/target/debug/deps/libopenssl-e573b9364e80295c.rlib --extern regex=/opt/crater/target/debug/deps/libregex-bbbbcb52a9d90da2.rlib --extern reqwest=/opt/crater/target/debug/deps/libreqwest-0d83a96cb4e049ea.rlib --extern ring=/opt/crater/target/debug/deps/libring-0ec7980fcab4b42a.rlib --extern serde=/opt/crater/target/debug/deps/libserde-4103ba27848e697c.rlib --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-cf9b70593671a4e3.so --extern serde_json=/opt/crater/target/debug/deps/libserde_json-dc62096b32c33808.rlib --cap-lints=warn -L native=/opt/crater/target/debug/build/backtrace-sys-ef3bcfcd6063c961/out -L native=/opt/crater/target/debug/build/ring-6bab890d046d829e/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "a39ce1d8d808465abe0bba5d8cc409f3df4ed34cc06ef759e9935c050ef3e135"`
[INFO] running `"docker" "rm" "-f" "a39ce1d8d808465abe0bba5d8cc409f3df4ed34cc06ef759e9935c050ef3e135"`
[INFO] [stdout] a39ce1d8d808465abe0bba5d8cc409f3df4ed34cc06ef759e9935c050ef3e135