[INFO] updating cached repository https://github.com/bfulk13/rust-basics
[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] f2c1adacd5f08b4ea8c7bac727ddfc3f10d3903a
[INFO] testing bfulk13/rust-basics against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbfulk13%2Frust-basics" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bfulk13/rust-basics 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/bfulk13/rust-basics
[INFO] finished tweaking git repo https://github.com/bfulk13/rust-basics
[INFO] tweaked toml for git repo https://github.com/bfulk13/rust-basics written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/bfulk13/rust-basics 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] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] a170d490e0d1e3574b00820a2bd5e4aabd71fe38b33533b8f033977bc6bcc8dc
[INFO] running `"docker" "start" "-a" "a170d490e0d1e3574b00820a2bd5e4aabd71fe38b33533b8f033977bc6bcc8dc"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling Sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: crate `Sandbox` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `sandbox`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "a170d490e0d1e3574b00820a2bd5e4aabd71fe38b33533b8f033977bc6bcc8dc"`
[INFO] running `"docker" "rm" "-f" "a170d490e0d1e3574b00820a2bd5e4aabd71fe38b33533b8f033977bc6bcc8dc"`
[INFO] [stdout] a170d490e0d1e3574b00820a2bd5e4aabd71fe38b33533b8f033977bc6bcc8dc
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] ea025976d9ee4b31c1c3dfc0041ec0797c6bf3e01887db4a19ba79df2a878cfe
[INFO] running `"docker" "start" "-a" "ea025976d9ee4b31c1c3dfc0041ec0797c6bf3e01887db4a19ba79df2a878cfe"`
[INFO] [stderr]    Compiling Sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: crate `Sandbox` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `sandbox`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "ea025976d9ee4b31c1c3dfc0041ec0797c6bf3e01887db4a19ba79df2a878cfe"`
[INFO] running `"docker" "rm" "-f" "ea025976d9ee4b31c1c3dfc0041ec0797c6bf3e01887db4a19ba79df2a878cfe"`
[INFO] [stdout] ea025976d9ee4b31c1c3dfc0041ec0797c6bf3e01887db4a19ba79df2a878cfe
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/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] 4b900ce1fd9ce6d04eea2310bb170a7fa6dc793d2e7412e70b731b3903786cc2
[INFO] running `"docker" "start" "-a" "4b900ce1fd9ce6d04eea2310bb170a7fa6dc793d2e7412e70b731b3903786cc2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/Sandbox-c44bd7df8a3c90c9
[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" "4b900ce1fd9ce6d04eea2310bb170a7fa6dc793d2e7412e70b731b3903786cc2"`
[INFO] running `"docker" "rm" "-f" "4b900ce1fd9ce6d04eea2310bb170a7fa6dc793d2e7412e70b731b3903786cc2"`
[INFO] [stdout] 4b900ce1fd9ce6d04eea2310bb170a7fa6dc793d2e7412e70b731b3903786cc2