[INFO] fetching crate stack 0.4.0...
[INFO] testing stack-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate stack 0.4.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate stack 0.4.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stack 0.4.0
[INFO] finished tweaking crates.io crate stack 0.4.0
[INFO] tweaked toml for crates.io crate stack 0.4.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7d492675bd45d74b970a78dac00439b32bb860a78ff648c566c80287c31d362
[INFO] running `Command { std: "docker" "start" "-a" "b7d492675bd45d74b970a78dac00439b32bb860a78ff648c566c80287c31d362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7d492675bd45d74b970a78dac00439b32bb860a78ff648c566c80287c31d362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7d492675bd45d74b970a78dac00439b32bb860a78ff648c566c80287c31d362", kill_on_drop: false }`
[INFO] [stdout] b7d492675bd45d74b970a78dac00439b32bb860a78ff648c566c80287c31d362
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91444d3296fd7586176f7b439d206ff98b7f1ee789e3da846120b1d890de7a0c
[INFO] running `Command { std: "docker" "start" "-a" "91444d3296fd7586176f7b439d206ff98b7f1ee789e3da846120b1d890de7a0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling coalesce v0.1.1
[INFO] [stderr]    Compiling stack v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "91444d3296fd7586176f7b439d206ff98b7f1ee789e3da846120b1d890de7a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91444d3296fd7586176f7b439d206ff98b7f1ee789e3da846120b1d890de7a0c", kill_on_drop: false }`
[INFO] [stdout] 91444d3296fd7586176f7b439d206ff98b7f1ee789e3da846120b1d890de7a0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48ac9d254f34462daf680a13d79b5cc4552948dd2baff0a19b3d0dcd3f86dd73
[INFO] running `Command { std: "docker" "start" "-a" "48ac9d254f34462daf680a13d79b5cc4552948dd2baff0a19b3d0dcd3f86dd73", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "48ac9d254f34462daf680a13d79b5cc4552948dd2baff0a19b3d0dcd3f86dd73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48ac9d254f34462daf680a13d79b5cc4552948dd2baff0a19b3d0dcd3f86dd73", kill_on_drop: false }`
[INFO] [stdout] 48ac9d254f34462daf680a13d79b5cc4552948dd2baff0a19b3d0dcd3f86dd73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3e98b3edc836a6757202cfb49f60cf515ce82b71b005d910a508763ae2646cf6
[INFO] running `Command { std: "docker" "start" "-a" "3e98b3edc836a6757202cfb49f60cf515ce82b71b005d910a508763ae2646cf6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack-1cebdcc30d9b6bd4)
[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] [stderr]      Running tests/addressable.rs (/opt/rustwide/target/debug/deps/addressable-bce41393af1f2855)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test addressable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/array_vec.rs (/opt/rustwide/target/debug/deps/array_vec-bfbcf8c5b58a39d7)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_in_option ... ok
[INFO] [stdout] test test_drop ... ok
[INFO] [stdout] test test_insert ... ok
[INFO] [stdout] test test_extend ... ok
[INFO] [stdout] test test_into_inner_2 ... ok
[INFO] [stdout] test test_into_inner_3 ... ok
[INFO] [stdout] test test_is_send_sync ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_into_inner_1 ... ok
[INFO] [stdout] test test_simple ... ok
[INFO] [stdout] test test_u16_index ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/small_dst.rs (/opt/rustwide/target/debug/deps/small_dst-09ccd221a2f58edc)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test closure ... ok
[INFO] [stdout] test ensure_drop ... ok
[INFO] [stdout] test many_instances ... ok
[INFO] [stdout] test sized ... ok
[INFO] [stdout] test spill ... ok
[INFO] [stdout] test trivial_type ... ok
[INFO] [stdout] test undersize ... ok
[INFO] [stdout] test oversize - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/small_vec.rs (/opt/rustwide/target/debug/deps/small_vec-20ebcbf967f4c586)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test drop_soundness ... ok
[INFO] [stdout] test null_optimization ... ok
[INFO] [stdout] test into_iter ... ok
[INFO] [stdout] test test_capacity ... ok
[INFO] [stdout] test test_inline ... ok
[INFO] [stdout] test test_spill ... ok
[INFO] [stdout] test test_truncate ... ok
[INFO] [stdout] test test_double_spill ... 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] [stderr]    Doc-tests stack
[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" "3e98b3edc836a6757202cfb49f60cf515ce82b71b005d910a508763ae2646cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e98b3edc836a6757202cfb49f60cf515ce82b71b005d910a508763ae2646cf6", kill_on_drop: false }`
[INFO] [stdout] 3e98b3edc836a6757202cfb49f60cf515ce82b71b005d910a508763ae2646cf6