[INFO] updating cached repository Idolf/syscall-challenge
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Idolf/syscall-challenge
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Idolf/syscall-challenge" "work/ex/beta-1.38-1/sources/1.37.0/gh/Idolf/syscall-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Idolf/syscall-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Idolf/syscall-challenge" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Idolf/syscall-challenge"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Idolf/syscall-challenge'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec63f361e67560791d5209106eeac6ea40df8023
[INFO] sha for GitHub repo Idolf/syscall-challenge: ec63f361e67560791d5209106eeac6ea40df8023
[INFO] validating manifest of Idolf/syscall-challenge 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 Idolf/syscall-challenge 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 Idolf/syscall-challenge
[INFO] finished frobbing Idolf/syscall-challenge
[INFO] frobbed toml for Idolf/syscall-challenge written to work/ex/beta-1.38-1/sources/1.37.0/gh/Idolf/syscall-challenge/Cargo.toml
[INFO] started frobbing Idolf/syscall-challenge
[INFO] finished frobbing Idolf/syscall-challenge
[INFO] frobbed toml for Idolf/syscall-challenge written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Idolf/syscall-challenge/Cargo.toml
[INFO] crate Idolf/syscall-challenge 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 Idolf/syscall-challenge 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-5/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/Idolf/syscall-challenge:/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] ed2412ad6496e363b34737141e1e683c036bd59fe88b15589e3905adbe6eb23f
[INFO] running `"docker" "start" "-a" "ed2412ad6496e363b34737141e1e683c036bd59fe88b15589e3905adbe6eb23f"`
[INFO] [stderr]    Compiling libc v0.2.20 (https://github.com/rust-lang/libc#bce927b3)
[INFO] [stderr]    Compiling bincode v0.6.1
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling nix v0.8.0 (https://github.com/Idolf/nix.git?branch=ptrace-stuff#65f0d512)
[INFO] [stderr]    Compiling ipc-channel v0.6.0
[INFO] [stderr]    Compiling syscall-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.07s
[INFO] running `"docker" "inspect" "ed2412ad6496e363b34737141e1e683c036bd59fe88b15589e3905adbe6eb23f"`
[INFO] running `"docker" "rm" "-f" "ed2412ad6496e363b34737141e1e683c036bd59fe88b15589e3905adbe6eb23f"`
[INFO] [stdout] ed2412ad6496e363b34737141e1e683c036bd59fe88b15589e3905adbe6eb23f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/Idolf/syscall-challenge:/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] 7fa1d2b0d46f9c0623378a8db39e93575856bdc53ee57bf9ec3869200171a05f
[INFO] running `"docker" "start" "-a" "7fa1d2b0d46f9c0623378a8db39e93575856bdc53ee57bf9ec3869200171a05f"`
[INFO] [stderr]    Compiling syscall-challenge v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "7fa1d2b0d46f9c0623378a8db39e93575856bdc53ee57bf9ec3869200171a05f"`
[INFO] running `"docker" "rm" "-f" "7fa1d2b0d46f9c0623378a8db39e93575856bdc53ee57bf9ec3869200171a05f"`
[INFO] [stdout] 7fa1d2b0d46f9c0623378a8db39e93575856bdc53ee57bf9ec3869200171a05f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/Idolf/syscall-challenge:/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] 991f8e2ed3fe3006b1f31e16fba56b2646cfb18527319bbce98976a020455dfc
[INFO] running `"docker" "start" "-a" "991f8e2ed3fe3006b1f31e16fba56b2646cfb18527319bbce98976a020455dfc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/syscall_challenge-0087b58187b22e45
[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" "991f8e2ed3fe3006b1f31e16fba56b2646cfb18527319bbce98976a020455dfc"`
[INFO] running `"docker" "rm" "-f" "991f8e2ed3fe3006b1f31e16fba56b2646cfb18527319bbce98976a020455dfc"`
[INFO] [stdout] 991f8e2ed3fe3006b1f31e16fba56b2646cfb18527319bbce98976a020455dfc