[INFO] fetching crate metrics-util 0.10.0...
[INFO] checking metrics-util-0.10.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate metrics-util 0.10.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate metrics-util 0.10.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-util 0.10.0
[INFO] finished tweaking crates.io crate metrics-util 0.10.0
[INFO] tweaked toml for crates.io crate metrics-util 0.10.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate metrics-util 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--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-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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f88b97973acc7d0d00145bc095132e67bcc69dd599945fe56d64e4bf2816797c
[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" "f88b97973acc7d0d00145bc095132e67bcc69dd599945fe56d64e4bf2816797c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f88b97973acc7d0d00145bc095132e67bcc69dd599945fe56d64e4bf2816797c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f88b97973acc7d0d00145bc095132e67bcc69dd599945fe56d64e4bf2816797c", kill_on_drop: false }`
[INFO] [stdout] f88b97973acc7d0d00145bc095132e67bcc69dd599945fe56d64e4bf2816797c
[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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 3c6a5ef7e9682763c4cb24d5a89d9bec6baf3eb1dafb8f5f485532c5fa4639be
[INFO] running `Command { std: "docker" "start" "-a" "3c6a5ef7e9682763c4cb24d5a89d9bec6baf3eb1dafb8f5f485532c5fa4639be", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   crossbeam-utils v0.8.5: default
[INFO] [stderr]   getrandom v0.2.3: std
[INFO] [stderr]   memchr v2.4.0: default
[INFO] [stderr]   num-traits v0.2.14: default, i128, libm
[INFO] [stderr]   syn v1.0.73 (as host dependency): extra-traits, full, visit, visit-mut
[INFO] [stderr] 
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling metrics v0.17.0
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking drawille v0.2.3
[INFO] [stderr]     Checking fragile v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking raw-cpuid v9.1.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking tracing-subscriber v0.2.19
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking quanta v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking ordered-float v2.7.0
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking hdrhistogram v7.3.0
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking ndarray v0.15.3
[INFO] [stderr]     Checking rand_distr v0.4.1
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking tracing-appender v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking ndarray-stats v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling metrics-macros v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling mockall_derive v0.9.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]     Checking metrics-util v0.10.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking structopt v0.3.22
[INFO] [stderr]     Checking textplots v0.6.0
[INFO] [stderr]     Checking mockall v0.9.1
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]    Migrating benches/router.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/filter.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/segqueue-torture.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/absolute.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/registry.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating examples/bucket-crusher.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/prefix.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating benches/bucket.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 05s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking metrics-util v0.10.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.65s
[INFO] running `Command { std: "docker" "inspect" "3c6a5ef7e9682763c4cb24d5a89d9bec6baf3eb1dafb8f5f485532c5fa4639be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6a5ef7e9682763c4cb24d5a89d9bec6baf3eb1dafb8f5f485532c5fa4639be", kill_on_drop: false }`
[INFO] [stdout] 3c6a5ef7e9682763c4cb24d5a89d9bec6baf3eb1dafb8f5f485532c5fa4639be