[INFO] updating cached repository https://github.com/Idolf/syscall-challenge
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ec63f361e67560791d5209106eeac6ea40df8023
[INFO] testing Idolf/syscall-challenge against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FIdolf%2Fsyscall-challenge" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Idolf/syscall-challenge on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Idolf/syscall-challenge
[INFO] finished tweaking git repo https://github.com/Idolf/syscall-challenge
[INFO] tweaked toml for git repo https://github.com/Idolf/syscall-challenge written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Idolf/syscall-challenge already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] d3cd1c9a034a5ba886e82d6878cb358bb952e1a96fd0bcecf2442fce28b3552d
[INFO] running `"docker" "start" "-a" "d3cd1c9a034a5ba886e82d6878cb358bb952e1a96fd0bcecf2442fce28b3552d"`
[INFO] [stderr]    Compiling libc v0.2.20 (https://github.com/rust-lang/libc#bce927b3)
[INFO] [stderr]    Compiling uuid v0.3.1
[INFO] [stderr]    Compiling bincode v0.6.1
[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/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `"docker" "inspect" "d3cd1c9a034a5ba886e82d6878cb358bb952e1a96fd0bcecf2442fce28b3552d"`
[INFO] running `"docker" "rm" "-f" "d3cd1c9a034a5ba886e82d6878cb358bb952e1a96fd0bcecf2442fce28b3552d"`
[INFO] [stdout] d3cd1c9a034a5ba886e82d6878cb358bb952e1a96fd0bcecf2442fce28b3552d
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 49acbf757e15903461eb67050b9a892a9de2c0f87999852e2f62cb75222acce4
[INFO] running `"docker" "start" "-a" "49acbf757e15903461eb67050b9a892a9de2c0f87999852e2f62cb75222acce4"`
[INFO] [stderr]    Compiling syscall-challenge v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "49acbf757e15903461eb67050b9a892a9de2c0f87999852e2f62cb75222acce4"`
[INFO] running `"docker" "rm" "-f" "49acbf757e15903461eb67050b9a892a9de2c0f87999852e2f62cb75222acce4"`
[INFO] [stdout] 49acbf757e15903461eb67050b9a892a9de2c0f87999852e2f62cb75222acce4
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] b1b178637b41481cbd2c051836ecd5b0fb4baed96b9719c57336a481e53c8bfd
[INFO] running `"docker" "start" "-a" "b1b178637b41481cbd2c051836ecd5b0fb4baed96b9719c57336a481e53c8bfd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syscall_challenge-d7bb56f5eeb1301c
[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" "b1b178637b41481cbd2c051836ecd5b0fb4baed96b9719c57336a481e53c8bfd"`
[INFO] running `"docker" "rm" "-f" "b1b178637b41481cbd2c051836ecd5b0fb4baed96b9719c57336a481e53c8bfd"`
[INFO] [stdout] b1b178637b41481cbd2c051836ecd5b0fb4baed96b9719c57336a481e53c8bfd