[INFO] fetching crate with_capacity_safe 0.3.0...
[INFO] checking with_capacity_safe-0.3.0 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate with_capacity_safe 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate with_capacity_safe 0.3.0 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate with_capacity_safe 0.3.0
[INFO] finished tweaking crates.io crate with_capacity_safe 0.3.0
[INFO] tweaked toml for crates.io crate with_capacity_safe 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae7c50904762f6a9d36016a9a828eb8541664173c69a65721848025d473988ec
[INFO] running `Command { std: "docker" "start" "-a" "ae7c50904762f6a9d36016a9a828eb8541664173c69a65721848025d473988ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae7c50904762f6a9d36016a9a828eb8541664173c69a65721848025d473988ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae7c50904762f6a9d36016a9a828eb8541664173c69a65721848025d473988ec", kill_on_drop: false }`
[INFO] [stdout] ae7c50904762f6a9d36016a9a828eb8541664173c69a65721848025d473988ec
[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=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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20c36c738c1bfe14fc5a662e079d50f3b4cd5a686aa06e21fe7bf90c84a4c619
[INFO] running `Command { std: "docker" "start" "-a" "20c36c738c1bfe14fc5a662e079d50f3b4cd5a686aa06e21fe7bf90c84a4c619", kill_on_drop: false }`
[INFO] [stderr]     Checking with_capacity_safe v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> src/lib.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 TryReserveError::AllocError { .. } => {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use fully-qualified syntax: `<TryReserveError as Trait>::AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0223]: ambiguous associated type
[INFO] [stdout]   --> src/lib.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 TryReserveError::AllocError { .. } => {
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use fully-qualified syntax: `<TryReserveError as Trait>::AllocError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no associated item named `CapacityOverflow` found for struct `TryReserveError` in the current scope
[INFO] [stdout]   --> src/lib.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 TryReserveError::CapacityOverflow => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ associated item not found in `TryReserveError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0223, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0223`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `with_capacity_safe` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no associated item named `CapacityOverflow` found for struct `TryReserveError` in the current scope
[INFO] [stdout]   --> src/lib.rs:61:34
[INFO] [stdout]    |
[INFO] [stdout] 61 |                 TryReserveError::CapacityOverflow => {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ associated item not found in `TryReserveError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0223, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0223`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "20c36c738c1bfe14fc5a662e079d50f3b4cd5a686aa06e21fe7bf90c84a4c619", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c36c738c1bfe14fc5a662e079d50f3b4cd5a686aa06e21fe7bf90c84a4c619", kill_on_drop: false }`
[INFO] [stdout] 20c36c738c1bfe14fc5a662e079d50f3b4cd5a686aa06e21fe7bf90c84a4c619