[INFO] cloning repository https://github.com/nro2/modexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nro2/modexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnro2%2Fmodexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnro2%2Fmodexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46e5db408c47021e3c4bb7f4272e3d4d4b7b8855
[INFO] testing nro2/modexp against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnro2%2Fmodexp" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nro2/modexp on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nro2/modexp
[INFO] finished tweaking git repo https://github.com/nro2/modexp
[INFO] tweaked toml for git repo https://github.com/nro2/modexp written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/nro2/modexp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9783197b8fd59eabb297adb1c7b282d821047bff726db3dfe818fa8ebdbfe53
[INFO] running `Command { std: "docker" "start" "-a" "e9783197b8fd59eabb297adb1c7b282d821047bff726db3dfe818fa8ebdbfe53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9783197b8fd59eabb297adb1c7b282d821047bff726db3dfe818fa8ebdbfe53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9783197b8fd59eabb297adb1c7b282d821047bff726db3dfe818fa8ebdbfe53", kill_on_drop: false }`
[INFO] [stdout] e9783197b8fd59eabb297adb1c7b282d821047bff726db3dfe818fa8ebdbfe53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 818102c4839ed8581e645d6a651c41ab0bed431179b500104cdb12c6141a8f3b
[INFO] running `Command { std: "docker" "start" "-a" "818102c4839ed8581e645d6a651c41ab0bed431179b500104cdb12c6141a8f3b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hw1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "818102c4839ed8581e645d6a651c41ab0bed431179b500104cdb12c6141a8f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818102c4839ed8581e645d6a651c41ab0bed431179b500104cdb12c6141a8f3b", kill_on_drop: false }`
[INFO] [stdout] 818102c4839ed8581e645d6a651c41ab0bed431179b500104cdb12c6141a8f3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f580e65da531581e7533201750bf7c25a8ec1b76e04e887fc922aa343df1aa40
[INFO] running `Command { std: "docker" "start" "-a" "f580e65da531581e7533201750bf7c25a8ec1b76e04e887fc922aa343df1aa40", kill_on_drop: false }`
[INFO] [stderr]    Compiling hw1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "f580e65da531581e7533201750bf7c25a8ec1b76e04e887fc922aa343df1aa40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f580e65da531581e7533201750bf7c25a8ec1b76e04e887fc922aa343df1aa40", kill_on_drop: false }`
[INFO] [stdout] f580e65da531581e7533201750bf7c25a8ec1b76e04e887fc922aa343df1aa40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 213fae0a20916c2bb2f83f3bdb3d3dff3c932616f24d8fda2c2356ae7c3cf399
[INFO] running `Command { std: "docker" "start" "-a" "213fae0a20916c2bb2f83f3bdb3d3dff3c932616f24d8fda2c2356ae7c3cf399", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hw1-2f2db6ff59e67a32)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_modexp ... ok
[INFO] [stdout] test test_x_zero ... ok
[INFO] [stdout] test test_y_zero ... ok
[INFO] [stdout] test large_input - should panic ... ok
[INFO] [stdout] test mod_by_zero - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "213fae0a20916c2bb2f83f3bdb3d3dff3c932616f24d8fda2c2356ae7c3cf399", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "213fae0a20916c2bb2f83f3bdb3d3dff3c932616f24d8fda2c2356ae7c3cf399", kill_on_drop: false }`
[INFO] [stdout] 213fae0a20916c2bb2f83f3bdb3d3dff3c932616f24d8fda2c2356ae7c3cf399