[INFO] fetching crate buf-read-ext 0.4.0...
[INFO] testing buf-read-ext-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate buf-read-ext 0.4.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate buf-read-ext 0.4.0 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 crates.io crate buf-read-ext 0.4.0
[INFO] finished tweaking crates.io crate buf-read-ext 0.4.0
[INFO] tweaked toml for crates.io crate buf-read-ext 0.4.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] f75ca99ecf74cf652057c362818f948762ebbe3b8378e1e2e4bf8ac019a2df44
[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" "f75ca99ecf74cf652057c362818f948762ebbe3b8378e1e2e4bf8ac019a2df44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f75ca99ecf74cf652057c362818f948762ebbe3b8378e1e2e4bf8ac019a2df44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f75ca99ecf74cf652057c362818f948762ebbe3b8378e1e2e4bf8ac019a2df44", kill_on_drop: false }`
[INFO] [stdout] f75ca99ecf74cf652057c362818f948762ebbe3b8378e1e2e4bf8ac019a2df44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7538a32ea105e007c19f0065074b5ff6320777a7e30a5824f53ebf02860d2f7e
[INFO] running `Command { std: "docker" "start" "-a" "7538a32ea105e007c19f0065074b5ff6320777a7e30a5824f53ebf02860d2f7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf-read-ext v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "7538a32ea105e007c19f0065074b5ff6320777a7e30a5824f53ebf02860d2f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7538a32ea105e007c19f0065074b5ff6320777a7e30a5824f53ebf02860d2f7e", kill_on_drop: false }`
[INFO] [stdout] 7538a32ea105e007c19f0065074b5ff6320777a7e30a5824f53ebf02860d2f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 36399e2eb41d4ad58ebd5cb1d290c62ebf99199e25b791db8f1190c3b72a042a
[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" "36399e2eb41d4ad58ebd5cb1d290c62ebf99199e25b791db8f1190c3b72a042a", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf-read-ext v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "36399e2eb41d4ad58ebd5cb1d290c62ebf99199e25b791db8f1190c3b72a042a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36399e2eb41d4ad58ebd5cb1d290c62ebf99199e25b791db8f1190c3b72a042a", kill_on_drop: false }`
[INFO] [stdout] 36399e2eb41d4ad58ebd5cb1d290c62ebf99199e25b791db8f1190c3b72a042a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e354094a4e5c8f5f885f0158e580055d954a12c67fd20ca282a2d15f3979b427
[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" "e354094a4e5c8f5f885f0158e580055d954a12c67fd20ca282a2d15f3979b427", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/buf_read_ext-32cfcd7b9a85bdcc
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::stream_until_token_double_straddle_test ... ok
[INFO] [stdout] test tests::stream_until_token_straddle_test ... ok
[INFO] [stdout] test tests::stream_until_token ... ok
[INFO] [stdout] test tests::stream_until_token_multiple_prefix_test ... ok
[INFO] [stdout] test tests::stream_until_token_large_token_test ... ok
[INFO] [stdout] test tests::stream_until_token_complex_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests buf-read-ext
[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" "e354094a4e5c8f5f885f0158e580055d954a12c67fd20ca282a2d15f3979b427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e354094a4e5c8f5f885f0158e580055d954a12c67fd20ca282a2d15f3979b427", kill_on_drop: false }`
[INFO] [stdout] e354094a4e5c8f5f885f0158e580055d954a12c67fd20ca282a2d15f3979b427