[INFO] fetching crate jsonrpc-derive 17.1.0...
[INFO] checking jsonrpc-derive-17.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate jsonrpc-derive 17.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate jsonrpc-derive 17.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonrpc-derive 17.1.0
[INFO] finished tweaking crates.io crate jsonrpc-derive 17.1.0
[INFO] tweaked toml for crates.io crate jsonrpc-derive 17.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate jsonrpc-derive 17.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 6ee1cdfd406bda669041fcf494237b654c8d61f0ac26dbec1f090eadec896651
[INFO] running `Command { std: "docker" "start" "-a" "6ee1cdfd406bda669041fcf494237b654c8d61f0ac26dbec1f090eadec896651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ee1cdfd406bda669041fcf494237b654c8d61f0ac26dbec1f090eadec896651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ee1cdfd406bda669041fcf494237b654c8d61f0ac26dbec1f090eadec896651", kill_on_drop: false }`
[INFO] [stdout] 6ee1cdfd406bda669041fcf494237b654c8d61f0ac26dbec1f090eadec896651
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5741ca8054c8c9bb04c2a942425ef1d7248b710e52e3cfeb3465c2a47728292d
[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" "5741ca8054c8c9bb04c2a942425ef1d7248b710e52e3cfeb3465c2a47728292d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking jsonrpc-core v17.1.0
[INFO] [stderr]     Checking proc-macro-crate v0.1.5
[INFO] [stderr]     Checking trybuild v1.0.42
[INFO] [stderr]     Checking jsonrpc-derive v17.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking jsonrpc-pubsub v17.1.0
[INFO] [stderr]     Checking jsonrpc-server-utils v17.1.0
[INFO] [stderr]     Checking jsonrpc-tcp-server v17.1.0
[INFO] [stderr]     Checking jsonrpc-client-transports v17.1.0
[INFO] [stderr]     Checking jsonrpc-core-client v17.1.0
[INFO] [stdout] error[E0659]: `assert_matches` is ambiguous (glob import vs any other name from outer scope during import/macro resolution)
[INFO] [stdout]   --> tests/client.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |                 assert_matches!(res, Ok(Ok(7)));
[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]   --> tests/client.rs:8:6
[INFO] [stdout]    |
[INFO] [stdout] 8  |     use super::*;
[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]   --> tests/client.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |                 assert_matches!(res, Ok(Ok(x)) if x == expected);
[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]   --> tests/client.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 |     use super::*;
[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]    --> tests/client.rs:123:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |                 assert_matches!(res, Ok(Ok(x)) if x == expected);
[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]    --> tests/client.rs:93:6
[INFO] [stdout]     |
[INFO] [stdout] 93  |     use super::*;
[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 3 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 `jsonrpc-derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5741ca8054c8c9bb04c2a942425ef1d7248b710e52e3cfeb3465c2a47728292d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5741ca8054c8c9bb04c2a942425ef1d7248b710e52e3cfeb3465c2a47728292d", kill_on_drop: false }`
[INFO] [stdout] 5741ca8054c8c9bb04c2a942425ef1d7248b710e52e3cfeb3465c2a47728292d