[INFO] fetching crate coll 0.1.3...
[INFO] testing coll-0.1.3 against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] extracting crate coll 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate coll 0.1.3 on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coll 0.1.3
[INFO] finished tweaking crates.io crate coll 0.1.3
[INFO] tweaked toml for crates.io crate coll 0.1.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2df15abeee3bc39bc1e4ac94b6ca35ffb14247e9e34346c7c38e9e431c8766f
[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" "b2df15abeee3bc39bc1e4ac94b6ca35ffb14247e9e34346c7c38e9e431c8766f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2df15abeee3bc39bc1e4ac94b6ca35ffb14247e9e34346c7c38e9e431c8766f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2df15abeee3bc39bc1e4ac94b6ca35ffb14247e9e34346c7c38e9e431c8766f", kill_on_drop: false }`
[INFO] [stdout] b2df15abeee3bc39bc1e4ac94b6ca35ffb14247e9e34346c7c38e9e431c8766f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d2d2129bf20d267c0646b3074c072a2a469e7455f758db052c291cc4a283d17
[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" "3d2d2129bf20d267c0646b3074c072a2a469e7455f758db052c291cc4a283d17", kill_on_drop: false }`
[INFO] [stderr]    Compiling coll v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "3d2d2129bf20d267c0646b3074c072a2a469e7455f758db052c291cc4a283d17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2d2129bf20d267c0646b3074c072a2a469e7455f758db052c291cc4a283d17", kill_on_drop: false }`
[INFO] [stdout] 3d2d2129bf20d267c0646b3074c072a2a469e7455f758db052c291cc4a283d17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04167605b1c588603b6da58a1bb86fa54c87f52bbda54a3ffd5c764ed374d348
[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" "04167605b1c588603b6da58a1bb86fa54c87f52bbda54a3ffd5c764ed374d348", kill_on_drop: false }`
[INFO] [stderr]    Compiling coll v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "04167605b1c588603b6da58a1bb86fa54c87f52bbda54a3ffd5c764ed374d348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04167605b1c588603b6da58a1bb86fa54c87f52bbda54a3ffd5c764ed374d348", kill_on_drop: false }`
[INFO] [stdout] 04167605b1c588603b6da58a1bb86fa54c87f52bbda54a3ffd5c764ed374d348
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e09709553620d80b4bfabe03c27cc15929c4cbf311cda0457731defdb8b44d2e
[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" "e09709553620d80b4bfabe03c27cc15929c4cbf311cda0457731defdb8b44d2e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/coll-3642c36cac1e71aa
[INFO] [stdout] running 11 tests
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_gives_the_correct_tree_3 ... ok
[INFO] [stdout] test persistent::rbtree::insert_a_single_item_gives_the_expected_tree ... ok
[INFO] [stdout] test persistent::rbtree::insert_doesnt_allow_duplicates ... ok
[INFO] [stdout] test persistent::rbtree::insert_two_items_gives_the_expected_tree ... ok
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_produces_the_correct_tree_4 ... ok
[INFO] [stderr]    Doc-tests coll
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_produces_the_correct_tree_1 ... ok
[INFO] [stdout] test persistent::rbtree::contains_finds_all_elements ... ok
[INFO] [stdout] test persistent::rbtree::insert_with_7_items_builds_the_correct_tree ... ok
[INFO] [stdout] test persistent::rbtree::balancing_three_nodes_produces_the_correct_tree_2 ... ok
[INFO] [stdout] test persistent::rbtree::two_empty_trees_are_equal ... ok
[INFO] [stdout] test persistent::rbtree::insert_three_items_gives_the_expected_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::is_empty (line 137) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::insert (line 91) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::contains (line 121) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::iter (line 155) ... ok
[INFO] [stdout] test src/persistent/rbtree.rs - persistent::rbtree::RbTree<T>::len (line 108) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e09709553620d80b4bfabe03c27cc15929c4cbf311cda0457731defdb8b44d2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09709553620d80b4bfabe03c27cc15929c4cbf311cda0457731defdb8b44d2e", kill_on_drop: false }`
[INFO] [stdout] e09709553620d80b4bfabe03c27cc15929c4cbf311cda0457731defdb8b44d2e