[INFO] fetching crate arraytools 0.1.5...
[INFO] testing arraytools-0.1.5 against 1.49.0 for beta-1.50-1
[INFO] extracting crate arraytools 0.1.5 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate arraytools 0.1.5 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 arraytools 0.1.5
[INFO] finished tweaking crates.io crate arraytools 0.1.5
[INFO] tweaked toml for crates.io crate arraytools 0.1.5 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 176f49c86c3210f1e8ba6b4ffd8c3f3e5a4f0a0c93d5a1b5e4341582174ce80e
[INFO] running `Command { std: "docker" "start" "-a" "176f49c86c3210f1e8ba6b4ffd8c3f3e5a4f0a0c93d5a1b5e4341582174ce80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "176f49c86c3210f1e8ba6b4ffd8c3f3e5a4f0a0c93d5a1b5e4341582174ce80e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176f49c86c3210f1e8ba6b4ffd8c3f3e5a4f0a0c93d5a1b5e4341582174ce80e", kill_on_drop: false }`
[INFO] [stdout] 176f49c86c3210f1e8ba6b4ffd8c3f3e5a4f0a0c93d5a1b5e4341582174ce80e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] a9a66d53a0c891c8ea9a385b06f6f7486dec3da4c94d3b492bcf8c6020eafb1d
[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" "a9a66d53a0c891c8ea9a385b06f6f7486dec3da4c94d3b492bcf8c6020eafb1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraytools v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
[INFO] running `Command { std: "docker" "inspect" "a9a66d53a0c891c8ea9a385b06f6f7486dec3da4c94d3b492bcf8c6020eafb1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a66d53a0c891c8ea9a385b06f6f7486dec3da4c94d3b492bcf8c6020eafb1d", kill_on_drop: false }`
[INFO] [stdout] a9a66d53a0c891c8ea9a385b06f6f7486dec3da4c94d3b492bcf8c6020eafb1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8d43755c80cf8addb80e44d564a4da1faf1ef61731408cdf798ddea2909ff82e
[INFO] running `Command { std: "docker" "start" "-a" "8d43755c80cf8addb80e44d564a4da1faf1ef61731408cdf798ddea2909ff82e", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraytools v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: a method with this name may be added to the standard library in the future
[INFO] [stdout]    --> src/lib.rs:643:19
[INFO] [stdout]     |
[INFO] [stdout] 643 |         let a = a.map(|x| x as f32);
[INFO] [stdout]     |                   ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stdout]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stdout]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stdout]     = help: call with fully qualified syntax `ArrayTools::map(...)` to keep using the current method
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.91s
[INFO] running `Command { std: "docker" "inspect" "8d43755c80cf8addb80e44d564a4da1faf1ef61731408cdf798ddea2909ff82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d43755c80cf8addb80e44d564a4da1faf1ef61731408cdf798ddea2909ff82e", kill_on_drop: false }`
[INFO] [stdout] 8d43755c80cf8addb80e44d564a4da1faf1ef61731408cdf798ddea2909ff82e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] f9843f397914ffb31f36085899c58d99ff904c0eb1a4ddfe9c67663bf2c278ba
[INFO] running `Command { std: "docker" "start" "-a" "f9843f397914ffb31f36085899c58d99ff904c0eb1a4ddfe9c67663bf2c278ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: a method with this name may be added to the standard library in the future
[INFO] [stderr]    --> src/lib.rs:643:19
[INFO] [stderr]     |
[INFO] [stderr] 643 |         let a = a.map(|x| x as f32);
[INFO] [stderr]     |                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unstable_name_collisions)]` on by default
[INFO] [stderr]     = warning: once this method is added to the standard library, the ambiguity may cause an error or change in behavior!
[INFO] [stderr]     = note: for more information, see issue #48919 <https://github.com/rust-lang/rust/issues/48919>
[INFO] [stderr]     = help: call with fully qualified syntax `ArrayTools::map(...)` to keep using the current method
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/arraytools-0ad1b9c2cc0d582c
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::from_iter_is_not_ambiguous_with_std ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arraytools
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test src/lib.rs - ArrayTools::Element (line 77) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::as_slice (line 101) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::as_mut_array (line 326) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::for_each (line 261) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools (line 67) ... ok
[INFO] [stdout] test src/lib.rs - (line 50) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::Tuple (line 127) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::as_mut_slice (line 114) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::LEN (line 90) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::as_ref_array (line 310) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::generate (line 165) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::from_iter (line 203) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::from_tuple (line 141) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::into_tuple (line 152) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::indices (line 225) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::pop_back (line 375) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::pop_front (line 392) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::push_front (line 358) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::push_back (line 342) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::map (line 243) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::zip (line 278) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::zip_with (line 295) ... ok
[INFO] [stdout] test src/lib.rs - ArrayTools::repeat (line 182) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f9843f397914ffb31f36085899c58d99ff904c0eb1a4ddfe9c67663bf2c278ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9843f397914ffb31f36085899c58d99ff904c0eb1a4ddfe9c67663bf2c278ba", kill_on_drop: false }`
[INFO] [stdout] f9843f397914ffb31f36085899c58d99ff904c0eb1a4ddfe9c67663bf2c278ba