[INFO] fetching crate appendbuf 0.1.6...
[INFO] testing appendbuf-0.1.6 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate appendbuf 0.1.6 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate appendbuf 0.1.6 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate appendbuf 0.1.6
[INFO] finished tweaking crates.io crate appendbuf 0.1.6
[INFO] tweaked toml for crates.io crate appendbuf 0.1.6 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c94d2c4a85bb209e04578d1904d3997c0e5ca85a9db5603d65c44d62b4cd0e4
[INFO] running `Command { std: "docker" "start" "-a" "2c94d2c4a85bb209e04578d1904d3997c0e5ca85a9db5603d65c44d62b4cd0e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c94d2c4a85bb209e04578d1904d3997c0e5ca85a9db5603d65c44d62b4cd0e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c94d2c4a85bb209e04578d1904d3997c0e5ca85a9db5603d65c44d62b4cd0e4", kill_on_drop: false }`
[INFO] [stdout] 2c94d2c4a85bb209e04578d1904d3997c0e5ca85a9db5603d65c44d62b4cd0e4
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 400108927b3ad51ba668e96eb5297c33a88fac8bc4ea59ceb57de7b5f0d522c3
[INFO] running `Command { std: "docker" "start" "-a" "400108927b3ad51ba668e96eb5297c33a88fac8bc4ea59ceb57de7b5f0d522c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling memalloc v0.1.0
[INFO] [stderr]    Compiling appendbuf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "400108927b3ad51ba668e96eb5297c33a88fac8bc4ea59ceb57de7b5f0d522c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400108927b3ad51ba668e96eb5297c33a88fac8bc4ea59ceb57de7b5f0d522c3", kill_on_drop: false }`
[INFO] [stdout] 400108927b3ad51ba668e96eb5297c33a88fac8bc4ea59ceb57de7b5f0d522c3
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60de8640d9062e4783e08990c74797c0d32e3cba8518cdc270d79f173eac3a2c
[INFO] running `Command { std: "docker" "start" "-a" "60de8640d9062e4783e08990c74797c0d32e3cba8518cdc270d79f173eac3a2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling appendbuf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "60de8640d9062e4783e08990c74797c0d32e3cba8518cdc270d79f173eac3a2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60de8640d9062e4783e08990c74797c0d32e3cba8518cdc270d79f173eac3a2c", kill_on_drop: false }`
[INFO] [stdout] 60de8640d9062e4783e08990c74797c0d32e3cba8518cdc270d79f173eac3a2c
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b5f00e1f396acf22ed8e2b1a6f2d1cc077fd7ca0edba6e6b589037843022012
[INFO] running `Command { std: "docker" "start" "-a" "5b5f00e1f396acf22ed8e2b1a6f2d1cc077fd7ca0edba6e6b589037843022012", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/appendbuf-f3a89ed93264c0b4)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_convert_from_vec ... ok
[INFO] [stdout] test test_many_writes ... ok
[INFO] [stdout] test test_overlong_write ... ok
[INFO] [stdout] test test_slice_bounds_edge_cases ... ok
[INFO] [stdout] test test_slice_slicing ... ok
[INFO] [stdout] test test_slice_then_write ... ok
[INFO] [stdout] test test_write_and_slice ... ok
[INFO] [stdout] test test_slice_from_bounds_checks - should panic ... ok
[INFO] [stdout] test test_slice_to_bounds_checks - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests appendbuf
[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" "5b5f00e1f396acf22ed8e2b1a6f2d1cc077fd7ca0edba6e6b589037843022012", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5f00e1f396acf22ed8e2b1a6f2d1cc077fd7ca0edba6e6b589037843022012", kill_on_drop: false }`
[INFO] [stdout] 5b5f00e1f396acf22ed8e2b1a6f2d1cc077fd7ca0edba6e6b589037843022012