[INFO] fetching crate display_buffer 0.1.0...
[INFO] testing display_buffer-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate display_buffer 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate display_buffer 0.1.0
[INFO] finished tweaking crates.io crate display_buffer 0.1.0
[INFO] tweaked toml for crates.io crate display_buffer 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate display_buffer 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4ee6db1fb4571c1bbaed69d90e8041f820d277dc239f41f4dbd925466f20a36
[INFO] running `Command { std: "docker" "start" "-a" "a4ee6db1fb4571c1bbaed69d90e8041f820d277dc239f41f4dbd925466f20a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4ee6db1fb4571c1bbaed69d90e8041f820d277dc239f41f4dbd925466f20a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ee6db1fb4571c1bbaed69d90e8041f820d277dc239f41f4dbd925466f20a36", kill_on_drop: false }`
[INFO] [stdout] a4ee6db1fb4571c1bbaed69d90e8041f820d277dc239f41f4dbd925466f20a36
[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=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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a79ae4b2e913c9b71cfee23e2f6289ccb2dea1b27bccfc1062377b8639f12a57
[INFO] running `Command { std: "docker" "start" "-a" "a79ae4b2e913c9b71cfee23e2f6289ccb2dea1b27bccfc1062377b8639f12a57", kill_on_drop: false }`
[INFO] [stderr]    Compiling display_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "a79ae4b2e913c9b71cfee23e2f6289ccb2dea1b27bccfc1062377b8639f12a57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a79ae4b2e913c9b71cfee23e2f6289ccb2dea1b27bccfc1062377b8639f12a57", kill_on_drop: false }`
[INFO] [stdout] a79ae4b2e913c9b71cfee23e2f6289ccb2dea1b27bccfc1062377b8639f12a57
[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=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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 503c8af836b1455875236dec57b0a4b93da44a2cdce83e49e88a921492155494
[INFO] running `Command { std: "docker" "start" "-a" "503c8af836b1455875236dec57b0a4b93da44a2cdce83e49e88a921492155494", kill_on_drop: false }`
[INFO] [stderr]    Compiling display_buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "503c8af836b1455875236dec57b0a4b93da44a2cdce83e49e88a921492155494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "503c8af836b1455875236dec57b0a4b93da44a2cdce83e49e88a921492155494", kill_on_drop: false }`
[INFO] [stdout] 503c8af836b1455875236dec57b0a4b93da44a2cdce83e49e88a921492155494
[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=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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b593bdfc6a9033674cf2e76ce24b669e2f47eb9b9c4503a64ddf9fcbc0fad788
[INFO] running `Command { std: "docker" "start" "-a" "b593bdfc6a9033674cf2e76ce24b669e2f47eb9b9c4503a64ddf9fcbc0fad788", 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/display_buffer-c9e06109f1f38665)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-1cc77f2c54d86e0f)
[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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stderr]    Doc-tests display_buffer
[INFO] [stdout] test write_2_byte_char ... ok
[INFO] [stdout] test write_1_byte_char ... ok
[INFO] [stdout] test write_3_byte_char ... ok
[INFO] [stdout] test write_char ... ok
[INFO] [stdout] test write_4_byte_char ... ok
[INFO] [stdout] test write_empty_str ... ok
[INFO] [stdout] test write_multiple_strs ... ok
[INFO] [stdout] test write_too_much ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - DisplayBuffer (line 12) ... ok
[INFO] [stdout] test src/lib.rs - fmt (line 147) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b593bdfc6a9033674cf2e76ce24b669e2f47eb9b9c4503a64ddf9fcbc0fad788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b593bdfc6a9033674cf2e76ce24b669e2f47eb9b9c4503a64ddf9fcbc0fad788", kill_on_drop: false }`
[INFO] [stdout] b593bdfc6a9033674cf2e76ce24b669e2f47eb9b9c4503a64ddf9fcbc0fad788