[INFO] cloning repository https://github.com/sassman/edu-tdd-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sassman/edu-tdd-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassman%2Fedu-tdd-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassman%2Fedu-tdd-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9bb52521fd80bbc1da33faa43282b2ef1b08f98
[INFO] testing sassman/edu-tdd-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsassman%2Fedu-tdd-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sassman/edu-tdd-rust on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sassman/edu-tdd-rust
[INFO] finished tweaking git repo https://github.com/sassman/edu-tdd-rust
[INFO] tweaked toml for git repo https://github.com/sassman/edu-tdd-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sassman/edu-tdd-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30d0e70d42a2785a4e53b2d297cff6e2a55ddd7cdb8439ba95367789b19c559a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "30d0e70d42a2785a4e53b2d297cff6e2a55ddd7cdb8439ba95367789b19c559a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30d0e70d42a2785a4e53b2d297cff6e2a55ddd7cdb8439ba95367789b19c559a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30d0e70d42a2785a4e53b2d297cff6e2a55ddd7cdb8439ba95367789b19c559a", kill_on_drop: false }`
[INFO] [stdout] 30d0e70d42a2785a4e53b2d297cff6e2a55ddd7cdb8439ba95367789b19c559a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b812bf061d95ed5f4d370e302c9cc28a5fa6d2f055aa10cf8c65603e1a058e6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b812bf061d95ed5f4d370e302c9cc28a5fa6d2f055aa10cf8c65603e1a058e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling dev_challenge_47 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "8b812bf061d95ed5f4d370e302c9cc28a5fa6d2f055aa10cf8c65603e1a058e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b812bf061d95ed5f4d370e302c9cc28a5fa6d2f055aa10cf8c65603e1a058e6", kill_on_drop: false }`
[INFO] [stdout] 8b812bf061d95ed5f4d370e302c9cc28a5fa6d2f055aa10cf8c65603e1a058e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ccc6d906550eec27b06a92ba25f6c926d9078021f82aeb50d348c4de8e6ebb14
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ccc6d906550eec27b06a92ba25f6c926d9078021f82aeb50d348c4de8e6ebb14", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling speculate v0.1.2
[INFO] [stderr]    Compiling dev_challenge_47 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 19.89s
[INFO] running `Command { std: "docker" "inspect" "ccc6d906550eec27b06a92ba25f6c926d9078021f82aeb50d348c4de8e6ebb14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccc6d906550eec27b06a92ba25f6c926d9078021f82aeb50d348c4de8e6ebb14", kill_on_drop: false }`
[INFO] [stdout] ccc6d906550eec27b06a92ba25f6c926d9078021f82aeb50d348c4de8e6ebb14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d5c7ce565606d6f714e899520c21c589e137109f30ba6c3a0f8ceb80308a0b9c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d5c7ce565606d6f714e899520c21c589e137109f30ba6c3a0f8ceb80308a0b9c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dev_challenge_47-0bb8bad1af7da404
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/alphabet_position_spec-d20bcaa9189ae4de
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/alphabet_position_test-d781e1282453598b
[INFO] [stdout] test speculate_0::alphabet_position::test_should_replace_a_with_1 ... ok
[INFO] [stdout] test speculate_0::alphabet_position::test_should_ignore_non_characters ... ok
[INFO] [stdout] test speculate_0::alphabet_position::test_should_replace_A_with_1 ... ok
[INFO] [stdout] test speculate_0::alphabet_position::test_should_replace_the_full_test_sentence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test it_should_replace_the_sentence ... ok
[INFO] [stdout] test it_should_replace_the_capital_a_with_1 ... ok
[INFO] [stdout] test it_should_replace_the_a_with_1 ... ok
[INFO] [stderr]    Doc-tests dev_challenge_47
[INFO] [stdout] test it_should_ignore_non_characters ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "d5c7ce565606d6f714e899520c21c589e137109f30ba6c3a0f8ceb80308a0b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c7ce565606d6f714e899520c21c589e137109f30ba6c3a0f8ceb80308a0b9c", kill_on_drop: false }`
[INFO] [stdout] d5c7ce565606d6f714e899520c21c589e137109f30ba6c3a0f8ceb80308a0b9c