[INFO] fetching crate metrics-util 0.4.0-alpha.2...
[INFO] checking metrics-util-0.4.0-alpha.2 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate metrics-util 0.4.0-alpha.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate metrics-util 0.4.0-alpha.2 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-util 0.4.0-alpha.2
[INFO] finished tweaking crates.io crate metrics-util 0.4.0-alpha.2
[INFO] tweaked toml for crates.io crate metrics-util 0.4.0-alpha.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metrics-macros v0.1.0-alpha.3
[INFO] [stderr]   Downloaded metrics v0.13.0-alpha.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "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] 954140c21a333b766f2835aba91791898e2a7d7c470af9add146b6fbd8e39f62
[INFO] running `Command { std: "docker" "start" "-a" "954140c21a333b766f2835aba91791898e2a7d7c470af9add146b6fbd8e39f62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "954140c21a333b766f2835aba91791898e2a7d7c470af9add146b6fbd8e39f62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954140c21a333b766f2835aba91791898e2a7d7c470af9add146b6fbd8e39f62", kill_on_drop: false }`
[INFO] [stdout] 954140c21a333b766f2835aba91791898e2a7d7c470af9add146b6fbd8e39f62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c46555ef5b3d323e34ab523198f40742a9cdea6308bf082e1c543f240770d7d4
[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" "c46555ef5b3d323e34ab523198f40742a9cdea6308bf082e1c543f240770d7d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling metrics v0.13.0-alpha.4
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.18
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[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling im v14.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking parking_lot v0.10.2
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[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sized-chunks v0.5.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling metrics-macros v0.1.0-alpha.3
[INFO] [stderr]     Checking metrics-util v0.4.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `metrics::Identifier`
[INFO] [stdout]  --> src/debugging.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use metrics::{Identifier, Key, Recorder};
[INFO] [stdout]   |               ^^^^^^^^^^ no `Identifier` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `metrics::Identifier`
[INFO] [stdout]  --> src/registry.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use metrics::Identifier;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^ no `Identifier` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `metrics::Identifier`
[INFO] [stdout]    --> src/layers/mod.rs:102:15
[INFO] [stdout]     |
[INFO] [stdout] 102 | use metrics::{Identifier, Key, Recorder};
[INFO] [stdout]     |               ^^^^^^^^^^ no `Identifier` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `metrics::Identifier`
[INFO] [stdout]  --> src/layers/prefix.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use metrics::{Identifier, Key, Recorder};
[INFO] [stdout]   |               ^^^^^^^^^^ no `Identifier` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/registry.rs:40:46
[INFO] [stdout]    |
[INFO] [stdout] 40 |             mappings: ArcSwap::from(Arc::new(ImmutableHashMap::new())),
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^^^^ cannot infer type for type parameter `K`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/layers/prefix.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     fn prefix_key(&self, key: Key) -> Key {
[INFO] [stdout]    |                                       --- expected `Key` because of return type
[INFO] [stdout] 31 |         key.map_name(|old| format!("{}.{}", self.prefix, old))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         expected enum `Key`, found struct `KeyData`
[INFO] [stdout]    |         help: try using a variant of the expected enum: `metrics::Key::Owned(key.map_name(|old| format!("{}.{}", self.prefix, old)))`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0308, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `metrics-util`
[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" "c46555ef5b3d323e34ab523198f40742a9cdea6308bf082e1c543f240770d7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c46555ef5b3d323e34ab523198f40742a9cdea6308bf082e1c543f240770d7d4", kill_on_drop: false }`
[INFO] [stdout] c46555ef5b3d323e34ab523198f40742a9cdea6308bf082e1c543f240770d7d4