[INFO] fetching crate nccl 1.0.0...
[INFO] testing nccl-1.0.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate nccl 1.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate nccl 1.0.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nccl 1.0.0
[INFO] finished tweaking crates.io crate nccl 1.0.0
[INFO] tweaked toml for crates.io crate nccl 1.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 677eda75bd9a5f9d309d5439772c42ab8d68bff77ad4f5b7281c25bf38121ae6
[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" "677eda75bd9a5f9d309d5439772c42ab8d68bff77ad4f5b7281c25bf38121ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "677eda75bd9a5f9d309d5439772c42ab8d68bff77ad4f5b7281c25bf38121ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "677eda75bd9a5f9d309d5439772c42ab8d68bff77ad4f5b7281c25bf38121ae6", kill_on_drop: false }`
[INFO] [stdout] 677eda75bd9a5f9d309d5439772c42ab8d68bff77ad4f5b7281c25bf38121ae6
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1053dec4a206586b23134f8f06a477c72909380694967f0ea7a8f189ff358b40
[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" "1053dec4a206586b23134f8f06a477c72909380694967f0ea7a8f189ff358b40", kill_on_drop: false }`
[INFO] [stderr]    Compiling nccl v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "1053dec4a206586b23134f8f06a477c72909380694967f0ea7a8f189ff358b40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1053dec4a206586b23134f8f06a477c72909380694967f0ea7a8f189ff358b40", kill_on_drop: false }`
[INFO] [stdout] 1053dec4a206586b23134f8f06a477c72909380694967f0ea7a8f189ff358b40
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 625d6664e06c5648444b5023b3235b37dff0ee4900409d25fbe5d2531824c0d6
[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" "625d6664e06c5648444b5023b3235b37dff0ee4900409d25fbe5d2531824c0d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling nccl v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "625d6664e06c5648444b5023b3235b37dff0ee4900409d25fbe5d2531824c0d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "625d6664e06c5648444b5023b3235b37dff0ee4900409d25fbe5d2531824c0d6", kill_on_drop: false }`
[INFO] [stdout] 625d6664e06c5648444b5023b3235b37dff0ee4900409d25fbe5d2531824c0d6
[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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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] 953a963cb54f64e18ef16ae2788e348943355237dfa052f1e7dc5efc1ce162cf
[INFO] running `Command { std: "docker" "start" "-a" "953a963cb54f64e18ef16ae2788e348943355237dfa052f1e7dc5efc1ce162cf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nccl-bdb81e455b4fec91)
[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/nccl.rs (/opt/rustwide/target/debug/deps/nccl-d775a5ce5ce8c82f)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test add_slice ... ok
[INFO] [stdout] test add_vec ... ok
[INFO] [stdout] test duplicates3 ... ok
[INFO] [stdout] test pair_keys ... ok
[INFO] [stdout] test has_path ... ok
[INFO] [stdout] test indent ... ok
[INFO] [stdout] test spaces ... ok
[INFO] [stdout] test tabs ... ok
[INFO] [stdout] test pair_value_parse ... ok
[INFO] [stdout] test add_pair ... ok
[INFO] [stdout] test long ... ok
[INFO] [stdout] test traverse_path ... ok
[INFO] [stdout] test inherit2 ... ok
[INFO] [stdout] test escapes ... ok
[INFO] [stdout] test value ... ok
[INFO] [stdout] test error_key_not_found ... ok
[INFO] [stderr]    Doc-tests nccl
[INFO] [stdout] test comments2 ... ok
[INFO] [stdout] test duplicates ... ok
[INFO] [stdout] test readme ... ok
[INFO] [stdout] test dos_unix_lines ... ok
[INFO] [stdout] test scan_file ... ok
[INFO] [stdout] test comments ... ok
[INFO] [stdout] test duplicates2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/pair.rs - pair::Pair::get (line 126) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::add (line 39) ... ok
[INFO] [stdout] test src/lib.rs - parse_string (line 85) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::value (line 191) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::pretty_print (line 288) ... ok
[INFO] [stdout] test src/macros.rs - vec_into (line 6) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::value_as (line 220) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::get_ref (line 161) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::has_path (line 94) ... ok
[INFO] [stdout] test src/value.rs - value::parse_into_value (line 9) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::has_key (line 69) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair::keys_as (line 257) ... ok
[INFO] [stdout] test src/lib.rs - parse_file (line 35) ... ok
[INFO] [stdout] test src/pair.rs - pair::Pair (line 11) ... ok
[INFO] [stdout] test src/lib.rs - parse_file_with (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.68s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "953a963cb54f64e18ef16ae2788e348943355237dfa052f1e7dc5efc1ce162cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "953a963cb54f64e18ef16ae2788e348943355237dfa052f1e7dc5efc1ce162cf", kill_on_drop: false }`
[INFO] [stdout] 953a963cb54f64e18ef16ae2788e348943355237dfa052f1e7dc5efc1ce162cf