[INFO] fetching crate prometheus-metric-storage 0.4.0...
[INFO] testing prometheus-metric-storage-0.4.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate prometheus-metric-storage 0.4.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate prometheus-metric-storage 0.4.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus-metric-storage 0.4.0
[INFO] finished tweaking crates.io crate prometheus-metric-storage 0.4.0
[INFO] tweaked toml for crates.io crate prometheus-metric-storage 0.4.0 written to /workspace/builds/worker-54/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 971f24d6a8a4de1d9ccea46de212fd8a360191a2e452ae7c8e99377b5b188175
[INFO] running `Command { std: "docker" "start" "-a" "971f24d6a8a4de1d9ccea46de212fd8a360191a2e452ae7c8e99377b5b188175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "971f24d6a8a4de1d9ccea46de212fd8a360191a2e452ae7c8e99377b5b188175", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "971f24d6a8a4de1d9ccea46de212fd8a360191a2e452ae7c8e99377b5b188175", kill_on_drop: false }`
[INFO] [stdout] 971f24d6a8a4de1d9ccea46de212fd8a360191a2e452ae7c8e99377b5b188175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 189f962e4636303e170be03c7540295946f1fdf58ef4245fa0594125661fab62
[INFO] running `Command { std: "docker" "start" "-a" "189f962e4636303e170be03c7540295946f1fdf58ef4245fa0594125661fab62", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling protobuf v2.25.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling prometheus v0.13.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling prometheus-metric-storage-derive v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling prometheus-metric-storage v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.07s
[INFO] running `Command { std: "docker" "inspect" "189f962e4636303e170be03c7540295946f1fdf58ef4245fa0594125661fab62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189f962e4636303e170be03c7540295946f1fdf58ef4245fa0594125661fab62", kill_on_drop: false }`
[INFO] [stdout] 189f962e4636303e170be03c7540295946f1fdf58ef4245fa0594125661fab62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd66c64d71a281ba66ae0660c43cc4def462005458c10cd176401daf34331aa3
[INFO] running `Command { std: "docker" "start" "-a" "dd66c64d71a281ba66ae0660c43cc4def462005458c10cd176401daf34331aa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling prometheus-metric-storage v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.67s
[INFO] running `Command { std: "docker" "inspect" "dd66c64d71a281ba66ae0660c43cc4def462005458c10cd176401daf34331aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd66c64d71a281ba66ae0660c43cc4def462005458c10cd176401daf34331aa3", kill_on_drop: false }`
[INFO] [stdout] dd66c64d71a281ba66ae0660c43cc4def462005458c10cd176401daf34331aa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27fb4bdac7701175586e3a5f5f770293522624cb85e8c33ba2f22cc9c64e04b4
[INFO] running `Command { std: "docker" "start" "-a" "27fb4bdac7701175586e3a5f5f770293522624cb85e8c33ba2f22cc9c64e04b4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prometheus_metric_storage-cd10c3c2f8fd7726)
[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] [stderr]    Doc-tests prometheus-metric-storage
[INFO] [stderr] error: couldn't read /opt/rustwide/workdir/src/../../README.md: No such file or directory (os error 2)
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:351:13
[INFO] [stderr]     |
[INFO] [stderr] 351 |     #[doc = include_str!("../../README.md")]
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "27fb4bdac7701175586e3a5f5f770293522624cb85e8c33ba2f22cc9c64e04b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27fb4bdac7701175586e3a5f5f770293522624cb85e8c33ba2f22cc9c64e04b4", kill_on_drop: false }`
[INFO] [stdout] 27fb4bdac7701175586e3a5f5f770293522624cb85e8c33ba2f22cc9c64e04b4