[INFO] fetching crate stack 0.4.0...
[INFO] testing stack-0.4.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate stack 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stack 0.4.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", 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] b5a7e79ebac7d93078f67b024a01879463acdae0c0644b2862c656054de197cc
[INFO] running `Command { std: "docker" "start" "-a" "b5a7e79ebac7d93078f67b024a01879463acdae0c0644b2862c656054de197cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5a7e79ebac7d93078f67b024a01879463acdae0c0644b2862c656054de197cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a7e79ebac7d93078f67b024a01879463acdae0c0644b2862c656054de197cc", kill_on_drop: false }`
[INFO] [stdout] b5a7e79ebac7d93078f67b024a01879463acdae0c0644b2862c656054de197cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] caca3fe8f727db798b8b9cfbf2b59f690e03d79975e7af7691961fb9480afd7f
[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" "caca3fe8f727db798b8b9cfbf2b59f690e03d79975e7af7691961fb9480afd7f", 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 0.71s
[INFO] running `Command { std: "docker" "inspect" "caca3fe8f727db798b8b9cfbf2b59f690e03d79975e7af7691961fb9480afd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "caca3fe8f727db798b8b9cfbf2b59f690e03d79975e7af7691961fb9480afd7f", kill_on_drop: false }`
[INFO] [stdout] caca3fe8f727db798b8b9cfbf2b59f690e03d79975e7af7691961fb9480afd7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475a55f369bd520802c3534a7e18987a265919cdc1c8a77d008f2630f0332351
[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" "475a55f369bd520802c3534a7e18987a265919cdc1c8a77d008f2630f0332351", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling stack v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "475a55f369bd520802c3534a7e18987a265919cdc1c8a77d008f2630f0332351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475a55f369bd520802c3534a7e18987a265919cdc1c8a77d008f2630f0332351", kill_on_drop: false }`
[INFO] [stdout] 475a55f369bd520802c3534a7e18987a265919cdc1c8a77d008f2630f0332351
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", 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] 359f9bb540ba0537cdb060bf86f79bd72d58e8b86eb011c0e57d3a44bc23409e
[INFO] running `Command { std: "docker" "start" "-a" "359f9bb540ba0537cdb060bf86f79bd72d58e8b86eb011c0e57d3a44bc23409e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack-f5007ef13c8e52e6)
[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-b8936f4bcbf8ff08)
[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-9ef4585bb9cc7635)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_drop ... ok
[INFO] [stdout] test test_in_option ... ok
[INFO] [stdout] test test_into_inner_1 ... ok
[INFO] [stdout] test test_into_inner_2 ... ok
[INFO] [stdout] test test_into_inner_3 ... ok
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] test test_simple ... ok
[INFO] [stdout] test test_u16_index ... ok
[INFO] [stdout] test test_insert ... ok
[INFO] [stderr]      Running tests/small_dst.rs (/opt/rustwide/target/debug/deps/small_dst-e95b54570e1bcc76)
[INFO] [stdout] test test_extend ... ok
[INFO] [stdout] test test_is_send_sync ... 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] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test closure ... ok
[INFO] [stdout] test ensure_drop ... ok
[INFO] [stdout] test trivial_type ... ok
[INFO] [stdout] test undersize ... ok
[INFO] [stdout] test many_instances ... ok
[INFO] [stdout] test spill ... ok
[INFO] [stdout] test sized ... ok
[INFO] [stdout] test oversize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/small_vec.rs (/opt/rustwide/target/debug/deps/small_vec-530e698d4807b604)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test drop_soundness ... ok
[INFO] [stdout] test into_iter ... ok
[INFO] [stdout] test test_capacity ... ok
[INFO] [stdout] test null_optimization ... ok
[INFO] [stdout] test test_double_spill ... ok
[INFO] [stdout] test test_inline ... ok
[INFO] [stdout] test test_spill ... ok
[INFO] [stdout] test test_truncate ... ok
[INFO] [stderr]    Doc-tests stack
[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 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" "359f9bb540ba0537cdb060bf86f79bd72d58e8b86eb011c0e57d3a44bc23409e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "359f9bb540ba0537cdb060bf86f79bd72d58e8b86eb011c0e57d3a44bc23409e", kill_on_drop: false }`
[INFO] [stdout] 359f9bb540ba0537cdb060bf86f79bd72d58e8b86eb011c0e57d3a44bc23409e