[INFO] fetching crate kekbit 0.3.3...
[INFO] checking kekbit-0.3.3 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate kekbit 0.3.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate kekbit 0.3.3 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kekbit 0.3.3
[INFO] finished tweaking crates.io crate kekbit 0.3.3
[INFO] tweaked toml for crates.io crate kekbit 0.3.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate kekbit 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 806e2d5b6dc0a41d64742ce81e97240df6d78544892ccc3dd5f190d2c0e7e615
[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" "806e2d5b6dc0a41d64742ce81e97240df6d78544892ccc3dd5f190d2c0e7e615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "806e2d5b6dc0a41d64742ce81e97240df6d78544892ccc3dd5f190d2c0e7e615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "806e2d5b6dc0a41d64742ce81e97240df6d78544892ccc3dd5f190d2c0e7e615", kill_on_drop: false }`
[INFO] [stdout] 806e2d5b6dc0a41d64742ce81e97240df6d78544892ccc3dd5f190d2c0e7e615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45402f02d1f551a6ae10a50787d7f604a225fe9e40fb1824aa50c07a31fef43b
[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" "45402f02d1f551a6ae10a50787d7f604a225fe9e40fb1824aa50c07a31fef43b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking colored v1.9.2
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking kekbit v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking simple_logger v1.6.0
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |         assert_matches!(retry_iter.size_hint(), (0, None));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 119 |         assert_matches!(retry_iter.next(), Some(ReadResult::Nothing));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             assert_matches!(retry_iter.next(), Some(ReadResult::Record(_)));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         assert_matches!(retry_iter.next(), Some(ReadResult::Nothing));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |         assert_matches!(retry_iter.next(), Some(ReadResult::Failed(ReadError::Closed)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         assert_matches!(retry_iter.next(), None);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]    --> src/retry.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         assert_matches!(retry_iter.size_hint(), (0, Some(0)));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: `assert_matches` could refer to a macro from prelude
[INFO] [stdout] note: `assert_matches` could also refer to the macro imported here
[INFO] [stdout]    --> src/retry.rs:107:9
[INFO] [stdout]     |
[INFO] [stdout] 107 |     use assert_matches::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     = help: consider adding an explicit import of `assert_matches` to disambiguate
[INFO] [stdout]     = help: or use `self::assert_matches` to refer to this macro unambiguously
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0659`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kekbit`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "45402f02d1f551a6ae10a50787d7f604a225fe9e40fb1824aa50c07a31fef43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45402f02d1f551a6ae10a50787d7f604a225fe9e40fb1824aa50c07a31fef43b", kill_on_drop: false }`
[INFO] [stdout] 45402f02d1f551a6ae10a50787d7f604a225fe9e40fb1824aa50c07a31fef43b