[INFO] fetching crate butter 0.1.2-alpha1...
[INFO] testing butter-0.1.2-alpha1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate butter 0.1.2-alpha1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate butter 0.1.2-alpha1
[INFO] finished tweaking crates.io crate butter 0.1.2-alpha1
[INFO] tweaked toml for crates.io crate butter 0.1.2-alpha1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate butter 0.1.2-alpha1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 008e479f548a3d833baf356a1af29e4a165130e64dc61b2195718674a36217f3
[INFO] running `Command { std: "docker" "start" "-a" "008e479f548a3d833baf356a1af29e4a165130e64dc61b2195718674a36217f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "008e479f548a3d833baf356a1af29e4a165130e64dc61b2195718674a36217f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008e479f548a3d833baf356a1af29e4a165130e64dc61b2195718674a36217f3", kill_on_drop: false }`
[INFO] [stdout] 008e479f548a3d833baf356a1af29e4a165130e64dc61b2195718674a36217f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c247ee50019df76129b40be7888e3635a2f921b548f675f27b34d077cfd6a58
[INFO] running `Command { std: "docker" "start" "-a" "2c247ee50019df76129b40be7888e3635a2f921b548f675f27b34d077cfd6a58", kill_on_drop: false }`
[INFO] [stderr]    Compiling butter v0.1.2-alpha1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "2c247ee50019df76129b40be7888e3635a2f921b548f675f27b34d077cfd6a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c247ee50019df76129b40be7888e3635a2f921b548f675f27b34d077cfd6a58", kill_on_drop: false }`
[INFO] [stdout] 2c247ee50019df76129b40be7888e3635a2f921b548f675f27b34d077cfd6a58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 964c745af8669020df7343c7a9bfffcfbaf78060df3634af328a6b568dfbd0c1
[INFO] running `Command { std: "docker" "start" "-a" "964c745af8669020df7343c7a9bfffcfbaf78060df3634af328a6b568dfbd0c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling butter v0.1.2-alpha1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "964c745af8669020df7343c7a9bfffcfbaf78060df3634af328a6b568dfbd0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964c745af8669020df7343c7a9bfffcfbaf78060df3634af328a6b568dfbd0c1", kill_on_drop: false }`
[INFO] [stdout] 964c745af8669020df7343c7a9bfffcfbaf78060df3634af328a6b568dfbd0c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8ba25865436b150f7eb3bef2ef6698aabb35d6950dc0713a2c5114f8b7fbf5fb
[INFO] running `Command { std: "docker" "start" "-a" "8ba25865436b150f7eb3bef2ef6698aabb35d6950dc0713a2c5114f8b7fbf5fb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/butter-cd93e4a77a1b1d87)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_reverse ... ok
[INFO] [stdout] test tests::test_word_count ... ok
[INFO] [stdout] test tests::test_is_palindrome ... ok
[INFO] [stdout] test tests::test_to_title_case ... ok
[INFO] [stderr]    Doc-tests butter
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ba25865436b150f7eb3bef2ef6698aabb35d6950dc0713a2c5114f8b7fbf5fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ba25865436b150f7eb3bef2ef6698aabb35d6950dc0713a2c5114f8b7fbf5fb", kill_on_drop: false }`
[INFO] [stdout] 8ba25865436b150f7eb3bef2ef6698aabb35d6950dc0713a2c5114f8b7fbf5fb