[INFO] fetching crate nccl 0.6.0...
[INFO] testing nccl-0.6.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate nccl 0.6.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nccl 0.6.0 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 nccl 0.6.0
[INFO] finished tweaking crates.io crate nccl 0.6.0
[INFO] tweaked toml for crates.io crate nccl 0.6.0 written to /workspace/builds/worker-4/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] cb96efbf3058bfb8fbe01e0fdf468b259ff130d8c9faeecbb1c7214ba2d797a8
[INFO] running `Command { std: "docker" "start" "-a" "cb96efbf3058bfb8fbe01e0fdf468b259ff130d8c9faeecbb1c7214ba2d797a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb96efbf3058bfb8fbe01e0fdf468b259ff130d8c9faeecbb1c7214ba2d797a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb96efbf3058bfb8fbe01e0fdf468b259ff130d8c9faeecbb1c7214ba2d797a8", kill_on_drop: false }`
[INFO] [stdout] cb96efbf3058bfb8fbe01e0fdf468b259ff130d8c9faeecbb1c7214ba2d797a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 41942ac11540211125f3d8bc9d30d453b2de114a60bf20323dcc2b8ad4f5cc32
[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" "41942ac11540211125f3d8bc9d30d453b2de114a60bf20323dcc2b8ad4f5cc32", kill_on_drop: false }`
[INFO] [stderr]    Compiling nccl v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "41942ac11540211125f3d8bc9d30d453b2de114a60bf20323dcc2b8ad4f5cc32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41942ac11540211125f3d8bc9d30d453b2de114a60bf20323dcc2b8ad4f5cc32", kill_on_drop: false }`
[INFO] [stdout] 41942ac11540211125f3d8bc9d30d453b2de114a60bf20323dcc2b8ad4f5cc32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 9cd858309336a3aff6e7e41e643cc869f8b306668dc0e3884e7e563e7325eacc
[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" "9cd858309336a3aff6e7e41e643cc869f8b306668dc0e3884e7e563e7325eacc", kill_on_drop: false }`
[INFO] [stderr]    Compiling nccl v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.01s
[INFO] running `Command { std: "docker" "inspect" "9cd858309336a3aff6e7e41e643cc869f8b306668dc0e3884e7e563e7325eacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd858309336a3aff6e7e41e643cc869f8b306668dc0e3884e7e563e7325eacc", kill_on_drop: false }`
[INFO] [stdout] 9cd858309336a3aff6e7e41e643cc869f8b306668dc0e3884e7e563e7325eacc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 81a4587e0fd0f4d24f9a9816c7b0987bda469a4e8d555673b6a334c68fb77dbd
[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" "81a4587e0fd0f4d24f9a9816c7b0987bda469a4e8d555673b6a334c68fb77dbd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nccl-1226e5e7c9d24975
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nccl-687c7e19c1bd8eb9
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test comments2 ... ok
[INFO] [stdout] test add_pair ... ok
[INFO] [stdout] test duplicates ... ok
[INFO] [stdout] test add_vec ... ok
[INFO] [stdout] test escapes ... ok
[INFO] [stdout] test add_slice ... ok
[INFO] [stdout] test duplicates2 ... ok
[INFO] [stdout] test duplicates3 ... ok
[INFO] [stdout] test error_key_not_found ... ok
[INFO] [stdout] test pair_value_parse ... ok
[INFO] [stdout] test pair_keys ... ok
[INFO] [stdout] test dos_unix_lines ... ok
[INFO] [stdout] test comments ... ok
[INFO] [stdout] test readme ... ok
[INFO] [stdout] test long ... ok
[INFO] [stdout] test indent ... ok
[INFO] [stdout] test traverse_path ... ok
[INFO] [stdout] test spaces ... ok
[INFO] [stdout] test inherit2 ... ok
[INFO] [stdout] test scan_file ... ok
[INFO] [stdout] test value ... ok
[INFO] [stdout] test has_path ... ok
[INFO] [stderr]    Doc-tests nccl
[INFO] [stdout] test tabs ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/pair.rs - pair::Pair::has_key (line 70) ... ok
[INFO] [stdout] test src/lib.rs - parse_file_with (line 60) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::get_ref (line 162) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::pretty_print (line 299) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::add (line 40) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::value (line 192) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::get (line 127) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::keys_as (line 262) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair (line 12) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::value_as (line 221) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::has_path (line 95) ... ok
[INFO] [stdout] test src/value.rs - value::parse_into_value (line 9) ... ok
[INFO] [stdout] test src/lib.rs - parse_file (line 36) ... ok
[INFO] [stdout] test src/macros.rs - vec_into (line 6) ... ok
[INFO] [stdout] test src/lib.rs - parse_string (line 84) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "81a4587e0fd0f4d24f9a9816c7b0987bda469a4e8d555673b6a334c68fb77dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81a4587e0fd0f4d24f9a9816c7b0987bda469a4e8d555673b6a334c68fb77dbd", kill_on_drop: false }`
[INFO] [stdout] 81a4587e0fd0f4d24f9a9816c7b0987bda469a4e8d555673b6a334c68fb77dbd