[INFO] updating cached repository ostapneko/conversion-paths-poc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ostapneko/conversion-paths-poc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ostapneko/conversion-paths-poc" "work/ex/beta-1.37-6/sources/1.36.0/gh/ostapneko/conversion-paths-poc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ostapneko/conversion-paths-poc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ostapneko/conversion-paths-poc" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ostapneko/conversion-paths-poc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ostapneko/conversion-paths-poc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a113f87636bd410c8566fec54dc9ccb94c2b5ae4
[INFO] sha for GitHub repo ostapneko/conversion-paths-poc: a113f87636bd410c8566fec54dc9ccb94c2b5ae4
[INFO] validating manifest of ostapneko/conversion-paths-poc 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 ostapneko/conversion-paths-poc 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 ostapneko/conversion-paths-poc
[INFO] finished frobbing ostapneko/conversion-paths-poc
[INFO] frobbed toml for ostapneko/conversion-paths-poc written to work/ex/beta-1.37-6/sources/1.36.0/gh/ostapneko/conversion-paths-poc/Cargo.toml
[INFO] started frobbing ostapneko/conversion-paths-poc
[INFO] finished frobbing ostapneko/conversion-paths-poc
[INFO] frobbed toml for ostapneko/conversion-paths-poc written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ostapneko/conversion-paths-poc/Cargo.toml
[INFO] crate ostapneko/conversion-paths-poc 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 ostapneko/conversion-paths-poc 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ostapneko/conversion-paths-poc:/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] a4cc3b588f1ed0e68ba1895715e89360c6c553211f865a49497e82e7a854bc60
[INFO] running `"docker" "start" "-a" "a4cc3b588f1ed0e68ba1895715e89360c6c553211f865a49497e82e7a854bc60"`
[INFO] [stderr]    Compiling conversion-paths-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `alloc_system`
[INFO] [stderr]  --> src/main.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate alloc_system;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `conversion-paths-rust`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a4cc3b588f1ed0e68ba1895715e89360c6c553211f865a49497e82e7a854bc60"`
[INFO] running `"docker" "rm" "-f" "a4cc3b588f1ed0e68ba1895715e89360c6c553211f865a49497e82e7a854bc60"`
[INFO] [stdout] a4cc3b588f1ed0e68ba1895715e89360c6c553211f865a49497e82e7a854bc60