[INFO] fetching crate prometheus 0.12.0...
[INFO] checking prometheus-0.12.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate prometheus 0.12.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate prometheus 0.12.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus 0.12.0
[INFO] finished tweaking crates.io crate prometheus 0.12.0
[INFO] tweaked toml for crates.io crate prometheus 0.12.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate prometheus 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded protobuf v2.22.0
[INFO] [stderr]   Downloaded protobuf-codegen v2.22.0
[INFO] [stderr]   Downloaded protobuf-codegen-pure v2.22.0
[INFO] [stderr]   Downloaded syn v1.0.61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67f597c0a3a7026cc424875ca95dcd04bad4f425ea2b4ec6c6940a647a275679
[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" "67f597c0a3a7026cc424875ca95dcd04bad4f425ea2b4ec6c6940a647a275679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67f597c0a3a7026cc424875ca95dcd04bad4f425ea2b4ec6c6940a647a275679", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67f597c0a3a7026cc424875ca95dcd04bad4f425ea2b4ec6c6940a647a275679", kill_on_drop: false }`
[INFO] [stdout] 67f597c0a3a7026cc424875ca95dcd04bad4f425ea2b4ec6c6940a647a275679
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 489a3a5c4cbec31563fbdc7814f925d10e740bab9a86cb0c9b8ba3b8a1d8feef
[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" "489a3a5c4cbec31563fbdc7814f925d10e740bab9a86cb0c9b8ba3b8a1d8feef", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling protobuf v2.22.0
[INFO] [stderr]    Compiling prometheus v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking mio v0.7.9
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "489a3a5c4cbec31563fbdc7814f925d10e740bab9a86cb0c9b8ba3b8a1d8feef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "489a3a5c4cbec31563fbdc7814f925d10e740bab9a86cb0c9b8ba3b8a1d8feef", kill_on_drop: false }`
[INFO] [stdout] 489a3a5c4cbec31563fbdc7814f925d10e740bab9a86cb0c9b8ba3b8a1d8feef