[INFO] fetching crate axum-prometheus 0.2.0...
[INFO] testing axum-prometheus-0.2.0 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take4
[INFO] extracting crate axum-prometheus 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate axum-prometheus 0.2.0 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate axum-prometheus 0.2.0
[INFO] finished tweaking crates.io crate axum-prometheus 0.2.0
[INFO] tweaked toml for crates.io crate axum-prometheus 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sketches-ddsketch v0.2.0
[INFO] [stderr]   Downloaded metrics-macros v0.6.0
[INFO] [stderr]   Downloaded metrics v0.20.1
[INFO] [stderr]   Downloaded metrics-util v0.14.0
[INFO] [stderr]   Downloaded quanta v0.10.1
[INFO] [stderr]   Downloaded metrics-exporter-prometheus v0.11.0
[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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acaafe381cf0b668996390308817f3aa78a4f46ceff0eb3d1ddecf941caa19ba
[INFO] running `Command { std: "docker" "start" "-a" "acaafe381cf0b668996390308817f3aa78a4f46ceff0eb3d1ddecf941caa19ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acaafe381cf0b668996390308817f3aa78a4f46ceff0eb3d1ddecf941caa19ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acaafe381cf0b668996390308817f3aa78a4f46ceff0eb3d1ddecf941caa19ba", kill_on_drop: false }`
[INFO] [stdout] acaafe381cf0b668996390308817f3aa78a4f46ceff0eb3d1ddecf941caa19ba
[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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 36e048936d1ea09b8438886386069b13501783e2964c84984cac883d4b0d0aaa
[INFO] running `Command { std: "docker" "start" "-a" "36e048936d1ea09b8438886386069b13501783e2964c84984cac883d4b0d0aaa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling portable-atomic v0.3.16
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling metrics v0.20.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling raw-cpuid v10.6.0
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling async-trait v0.1.59
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling axum-core v0.3.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling sketches-ddsketch v0.2.0
[INFO] [stderr]    Compiling quanta v0.10.1
[INFO] [stderr]    Compiling http-range-header v0.3.0
[INFO] [stderr]    Compiling ipnet v2.7.0
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling metrics-macros v0.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling metrics-util v0.14.0
[INFO] [stderr]    Compiling pin-project v1.0.12
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling hyper v0.14.23
[INFO] [stderr]    Compiling tower-http v0.3.5
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.11.0
[INFO] [stderr]    Compiling axum-prometheus v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "36e048936d1ea09b8438886386069b13501783e2964c84984cac883d4b0d0aaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36e048936d1ea09b8438886386069b13501783e2964c84984cac883d4b0d0aaa", kill_on_drop: false }`
[INFO] [stdout] 36e048936d1ea09b8438886386069b13501783e2964c84984cac883d4b0d0aaa
[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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7de699420be31c31f30aafc3cdbdcf407804d6d28837e31bed3b4d2588717805
[INFO] running `Command { std: "docker" "start" "-a" "7de699420be31c31f30aafc3cdbdcf407804d6d28837e31bed3b4d2588717805", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tokio v1.23.0
[INFO] [stderr]    Compiling serde v1.0.150
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]    Compiling axum v0.6.1
[INFO] [stderr]    Compiling matchit v0.7.0
[INFO] [stderr]    Compiling sync_wrapper v0.1.1
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling hyper v0.14.23
[INFO] [stderr]    Compiling tower-http v0.3.5
[INFO] [stderr]    Compiling serde_path_to_error v0.1.8
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling metrics-exporter-prometheus v0.11.0
[INFO] [stderr]    Compiling axum-prometheus v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 35.56s
[INFO] running `Command { std: "docker" "inspect" "7de699420be31c31f30aafc3cdbdcf407804d6d28837e31bed3b4d2588717805", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7de699420be31c31f30aafc3cdbdcf407804d6d28837e31bed3b4d2588717805", kill_on_drop: false }`
[INFO] [stdout] 7de699420be31c31f30aafc3cdbdcf407804d6d28837e31bed3b4d2588717805
[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" "RUSTDOCFLAGS=--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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] accbf4e16ecd9089e44ad3aadf0cd7ad1ef2ea35e0b211ae7a7c914e63cc310f
[INFO] running `Command { std: "docker" "start" "-a" "accbf4e16ecd9089e44ad3aadf0cd7ad1ef2ea35e0b211ae7a7c914e63cc310f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/axum_prometheus-1340d5679bf082d1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "accbf4e16ecd9089e44ad3aadf0cd7ad1ef2ea35e0b211ae7a7c914e63cc310f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "accbf4e16ecd9089e44ad3aadf0cd7ad1ef2ea35e0b211ae7a7c914e63cc310f", kill_on_drop: false }`
[INFO] [stdout] accbf4e16ecd9089e44ad3aadf0cd7ad1ef2ea35e0b211ae7a7c914e63cc310f