[INFO] fetching crate metrics-exporter-prometheus 0.6.1...
[INFO] checking metrics-exporter-prometheus-0.6.1 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate metrics-exporter-prometheus 0.6.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate metrics-exporter-prometheus 0.6.1 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-prometheus 0.6.1
[INFO] finished tweaking crates.io crate metrics-exporter-prometheus 0.6.1
[INFO] tweaked toml for crates.io crate metrics-exporter-prometheus 0.6.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate metrics-exporter-prometheus 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a70a11a95622f19326c8b48aeac38aac42ddfed3bee04db87c6c15db1ccb117a
[INFO] running `Command { std: "docker" "start" "-a" "a70a11a95622f19326c8b48aeac38aac42ddfed3bee04db87c6c15db1ccb117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a70a11a95622f19326c8b48aeac38aac42ddfed3bee04db87c6c15db1ccb117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70a11a95622f19326c8b48aeac38aac42ddfed3bee04db87c6c15db1ccb117a", kill_on_drop: false }`
[INFO] [stdout] a70a11a95622f19326c8b48aeac38aac42ddfed3bee04db87c6c15db1ccb117a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3810710d3dbf917396ba404fc90ba52406b011c53564630421eaf6a2476b56c
[INFO] running `Command { std: "docker" "start" "-a" "b3810710d3dbf917396ba404fc90ba52406b011c53564630421eaf6a2476b56c", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling metrics v0.17.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking sketches-ddsketch v0.1.2
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]     Checking tracing-core v0.1.20
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking raw-cpuid v10.2.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking futures-channel v0.3.17
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.16
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking quanta v0.9.3
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking ordered-float v2.8.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tracing v0.1.27
[INFO] [stderr]     Checking tracing-subscriber v0.2.22
[INFO] [stderr]     Checking hyper v0.14.12
[INFO] [stderr]    Compiling metrics-macros v0.4.0
[INFO] [stderr]     Checking metrics-util v0.10.1
[INFO] [stderr]     Checking metrics-exporter-prometheus v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.98s
[INFO] running `Command { std: "docker" "inspect" "b3810710d3dbf917396ba404fc90ba52406b011c53564630421eaf6a2476b56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3810710d3dbf917396ba404fc90ba52406b011c53564630421eaf6a2476b56c", kill_on_drop: false }`
[INFO] [stdout] b3810710d3dbf917396ba404fc90ba52406b011c53564630421eaf6a2476b56c