[INFO] fetching crate indexlist 0.1.0...
[INFO] testing indexlist-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate indexlist 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate indexlist 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate indexlist 0.1.0
[INFO] finished tweaking crates.io crate indexlist 0.1.0
[INFO] tweaked toml for crates.io crate indexlist 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 7b89af726ef6a08c7a7b3580101460eb094265d2a20cec8f6621f716ea46e087
[INFO] running `Command { std: "docker" "start" "-a" "7b89af726ef6a08c7a7b3580101460eb094265d2a20cec8f6621f716ea46e087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b89af726ef6a08c7a7b3580101460eb094265d2a20cec8f6621f716ea46e087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b89af726ef6a08c7a7b3580101460eb094265d2a20cec8f6621f716ea46e087", kill_on_drop: false }`
[INFO] [stdout] 7b89af726ef6a08c7a7b3580101460eb094265d2a20cec8f6621f716ea46e087
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] 1035c67c3a0b49f45da343eb715748cdca5a58e9790599e4a12441b285a20ff6
[INFO] running `Command { std: "docker" "start" "-a" "1035c67c3a0b49f45da343eb715748cdca5a58e9790599e4a12441b285a20ff6", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "1035c67c3a0b49f45da343eb715748cdca5a58e9790599e4a12441b285a20ff6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1035c67c3a0b49f45da343eb715748cdca5a58e9790599e4a12441b285a20ff6", kill_on_drop: false }`
[INFO] [stdout] 1035c67c3a0b49f45da343eb715748cdca5a58e9790599e4a12441b285a20ff6
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 223e9c3c7a6c5fac7b333ffa84cf163477e19dbed9b7ee254f953f8fc0b51ef4
[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" "223e9c3c7a6c5fac7b333ffa84cf163477e19dbed9b7ee254f953f8fc0b51ef4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling generational-arena v0.1.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling indexlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 43.64s
[INFO] running `Command { std: "docker" "inspect" "223e9c3c7a6c5fac7b333ffa84cf163477e19dbed9b7ee254f953f8fc0b51ef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "223e9c3c7a6c5fac7b333ffa84cf163477e19dbed9b7ee254f953f8fc0b51ef4", kill_on_drop: false }`
[INFO] [stdout] 223e9c3c7a6c5fac7b333ffa84cf163477e19dbed9b7ee254f953f8fc0b51ef4
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 8538cf8ede684b73a6ccdcb94292bd93910bddf3201018f04cc64f29257bc1ba
[INFO] running `Command { std: "docker" "start" "-a" "8538cf8ede684b73a6ccdcb94292bd93910bddf3201018f04cc64f29257bc1ba", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/indexlist-36970c61efff9ae3
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::contains ... ok
[INFO] [stdout] test tests::generations ... ok
[INFO] [stdout] test tests::get ... ok
[INFO] [stdout] test tests::push_front ... ok
[INFO] [stdout] test tests::index_of ... ok
[INFO] [stdout] test tests::insert_thrice ... ok
[INFO] [stdout] test tests::head ... ok
[INFO] [stdout] test tests::push_and_pop ... ok
[INFO] [stdout] test tests::reallocation ... ok
[INFO] [stdout] test tests::remove_head ... ok
[INFO] [stdout] test tests::remove_middle ... ok
[INFO] [stdout] test tests::remove_only ... ok
[INFO] [stdout] test tests::iter ... ok
[INFO] [stdout] test tests::create_list ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stdout] test tests::remove_tail ... ok
[INFO] [stdout] test tests::remove_returns_none_when_not_there ... ok
[INFO] [stdout] test tests::pop_front ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests indexlist
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/lib.rs - IndexList<T>::new (line 191) ... ok
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::get (line 559) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::get (line 543) ... ok
[INFO] [stdout] test src/lib.rs - (line 59) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::iter (line 750) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::get (line 529) ... ok
[INFO] [stdout] test src/lib.rs - Index (line 161) ... ok
[INFO] [stdout] test src/lib.rs - (line 77) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::head (line 257) ... ok
[INFO] [stdout] test src/lib.rs - Index (line 148) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::index_of (line 781) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::head (line 243) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::contains (line 496) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::push_front (line 402) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::with_capacity (line 218) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::push_back (line 286) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::remove (line 615) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::remove (line 598) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::pop_front (line 818) ... ok
[INFO] [stdout] test src/lib.rs - IndexList<T>::remove (line 631) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8538cf8ede684b73a6ccdcb94292bd93910bddf3201018f04cc64f29257bc1ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8538cf8ede684b73a6ccdcb94292bd93910bddf3201018f04cc64f29257bc1ba", kill_on_drop: false }`
[INFO] [stdout] 8538cf8ede684b73a6ccdcb94292bd93910bddf3201018f04cc64f29257bc1ba