[INFO] fetching crate rollercoaster 0.0.4...
[INFO] testing rollercoaster-0.0.4 against 1.91.0 for beta-1.92-2
[INFO] extracting crate rollercoaster 0.0.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rollercoaster 0.0.4
[INFO] finished tweaking crates.io crate rollercoaster 0.0.4
[INFO] tweaked toml for crates.io crate rollercoaster 0.0.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rollercoaster 0.0.4 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3dda2fafbc05d715c22347678c93059fd5ada99894d8a9d2701e9c3b879d07ae
[INFO] running `Command { std: "docker" "start" "-a" "3dda2fafbc05d715c22347678c93059fd5ada99894d8a9d2701e9c3b879d07ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dda2fafbc05d715c22347678c93059fd5ada99894d8a9d2701e9c3b879d07ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dda2fafbc05d715c22347678c93059fd5ada99894d8a9d2701e9c3b879d07ae", kill_on_drop: false }`
[INFO] [stdout] 3dda2fafbc05d715c22347678c93059fd5ada99894d8a9d2701e9c3b879d07ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99cde27c6a9b81aaba7c495109226c5770999fe1eb954bc29ff90e89b233aeb5
[INFO] running `Command { std: "docker" "start" "-a" "99cde27c6a9b81aaba7c495109226c5770999fe1eb954bc29ff90e89b233aeb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rollercoaster v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "99cde27c6a9b81aaba7c495109226c5770999fe1eb954bc29ff90e89b233aeb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99cde27c6a9b81aaba7c495109226c5770999fe1eb954bc29ff90e89b233aeb5", kill_on_drop: false }`
[INFO] [stdout] 99cde27c6a9b81aaba7c495109226c5770999fe1eb954bc29ff90e89b233aeb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a4d4e2fc94fbc6dd253f0cea1605ff5717d411b11443f7b04ee24bd5bb09256
[INFO] running `Command { std: "docker" "start" "-a" "8a4d4e2fc94fbc6dd253f0cea1605ff5717d411b11443f7b04ee24bd5bb09256", kill_on_drop: false }`
[INFO] [stderr]    Compiling rollercoaster v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "8a4d4e2fc94fbc6dd253f0cea1605ff5717d411b11443f7b04ee24bd5bb09256", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a4d4e2fc94fbc6dd253f0cea1605ff5717d411b11443f7b04ee24bd5bb09256", kill_on_drop: false }`
[INFO] [stdout] 8a4d4e2fc94fbc6dd253f0cea1605ff5717d411b11443f7b04ee24bd5bb09256
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb7ab15d22a77b8580c42f70f41d1184f117172655a59242db168a0cb4f1eb4c
[INFO] running `Command { std: "docker" "start" "-a" "cb7ab15d22a77b8580c42f70f41d1184f117172655a59242db168a0cb4f1eb4c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rollercoaster-c5078836af6d1317)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test concat::test::it_concats_both_ways ... ok
[INFO] [stdout] test grouping::test::it_groups_correctly ... ok
[INFO] [stdout] test unique::test::it_returns_unique ... ok
[INFO] [stdout] test memory::test::it_remembers ... ok
[INFO] [stdout] test memory::test::it_forgets ... ok
[INFO] [stderr]    Doc-tests rollercoaster
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Rollercoaster (line 11) ... ok
[INFO] [stdout] test src/lib.rs - Rollercoaster::append (line 10) ... ok
[INFO] [stdout] test src/lib.rs - Rollercoaster::group_by (line 16) ... ok
[INFO] [stdout] test src/lib.rs - Rollercoaster::unique_by (line 17) ... ok
[INFO] [stdout] test src/lib.rs - Rollercoaster::prepend (line 10) ... ok
[INFO] [stdout] test src/lib.rs - Rollercoaster::memory (line 26) ... ok
[INFO] [stdout] test src/lib.rs - Rollercoaster::unique (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb7ab15d22a77b8580c42f70f41d1184f117172655a59242db168a0cb4f1eb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7ab15d22a77b8580c42f70f41d1184f117172655a59242db168a0cb4f1eb4c", kill_on_drop: false }`
[INFO] [stdout] cb7ab15d22a77b8580c42f70f41d1184f117172655a59242db168a0cb4f1eb4c