[INFO] fetching crate tiny-ordered-float 0.4.0...
[INFO] building tiny-ordered-float-0.4.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate tiny-ordered-float 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate tiny-ordered-float 0.4.0
[INFO] finished tweaking crates.io crate tiny-ordered-float 0.4.0
[INFO] tweaked toml for crates.io crate tiny-ordered-float 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tiny-ordered-float 0.4.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb53ebea3ced553280811518b9f5b9b00a0b70dd8a023c8ff54aea1918dbcf3a
[INFO] running `Command { std: "docker" "start" "-a" "cb53ebea3ced553280811518b9f5b9b00a0b70dd8a023c8ff54aea1918dbcf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb53ebea3ced553280811518b9f5b9b00a0b70dd8a023c8ff54aea1918dbcf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb53ebea3ced553280811518b9f5b9b00a0b70dd8a023c8ff54aea1918dbcf3a", kill_on_drop: false }`
[INFO] [stdout] cb53ebea3ced553280811518b9f5b9b00a0b70dd8a023c8ff54aea1918dbcf3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f359d7700d47287f3461b9df23bba6b4781771264766ccc3d1e2f3e144989df
[INFO] running `Command { std: "docker" "start" "-a" "4f359d7700d47287f3461b9df23bba6b4781771264766ccc3d1e2f3e144989df", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-ordered-float v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "4f359d7700d47287f3461b9df23bba6b4781771264766ccc3d1e2f3e144989df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f359d7700d47287f3461b9df23bba6b4781771264766ccc3d1e2f3e144989df", kill_on_drop: false }`
[INFO] [stdout] 4f359d7700d47287f3461b9df23bba6b4781771264766ccc3d1e2f3e144989df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be72d919d7daf367d75109f72a98f5a03881abefa192bee118cbaf2568b3050d
[INFO] running `Command { std: "docker" "start" "-a" "be72d919d7daf367d75109f72a98f5a03881abefa192bee118cbaf2568b3050d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tiny-ordered-float v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `collections` in `core`
[INFO] [stdout]  --> tests/tests.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use core::collections::hash_map::RandomState;
[INFO] [stdout]   |               ^^^^^^^^^^^ could not find `collections` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::collections`
[INFO] [stdout]  --> tests/tests.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use core::collections::HashSet;
[INFO] [stdout]   |               ^^^^^^^^^^^ could not find `collections` in `core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `collections` in `core`
[INFO] [stdout]    --> tests/tests.rs:157:27
[INFO] [stdout]     |
[INFO] [stdout] 157 |     let mut set = ::core::collections::HashSet::with_capacity(limit);
[INFO] [stdout]     |                           ^^^^^^^^^^^ could not find `collections` in `core`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout]   2 + use std::collections::HashSet;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `HashSet`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 157 -     let mut set = ::core::collections::HashSet::with_capacity(limit);
[INFO] [stdout] 157 +     let mut set = HashSet::with_capacity(limit);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `collections` in `core`
[INFO] [stdout]    --> tests/tests.rs:176:27
[INFO] [stdout]     |
[INFO] [stdout] 176 |     let mut set = ::core::collections::HashSet::with_capacity(limit);
[INFO] [stdout]     |                           ^^^^^^^^^^^ could not find `collections` in `core`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout]   2 + use std::collections::HashSet;
[INFO] [stdout]     |
[INFO] [stdout] help: if you import `HashSet`, refer to it directly
[INFO] [stdout]     |
[INFO] [stdout] 176 -     let mut set = ::core::collections::HashSet::with_capacity(limit);
[INFO] [stdout] 176 +     let mut set = HashSet::with_capacity(limit);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tiny-ordered-float` (test "tests") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "be72d919d7daf367d75109f72a98f5a03881abefa192bee118cbaf2568b3050d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be72d919d7daf367d75109f72a98f5a03881abefa192bee118cbaf2568b3050d", kill_on_drop: false }`
[INFO] [stdout] be72d919d7daf367d75109f72a98f5a03881abefa192bee118cbaf2568b3050d