[INFO] fetching crate metrics-exporter-http 0.3.0...
[INFO] testing metrics-exporter-http-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate metrics-exporter-http 0.3.0 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate metrics-exporter-http 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-http 0.3.0
[INFO] finished tweaking crates.io crate metrics-exporter-http 0.3.0
[INFO] tweaked toml for crates.io crate metrics-exporter-http 0.3.0 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c23ca8228d1e135267f600b9a1acee5f2f1de3a0b3d7ef0927f93a889dfa3331
[INFO] running `Command { std: "docker" "start" "-a" "c23ca8228d1e135267f600b9a1acee5f2f1de3a0b3d7ef0927f93a889dfa3331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c23ca8228d1e135267f600b9a1acee5f2f1de3a0b3d7ef0927f93a889dfa3331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c23ca8228d1e135267f600b9a1acee5f2f1de3a0b3d7ef0927f93a889dfa3331", kill_on_drop: false }`
[INFO] [stdout] c23ca8228d1e135267f600b9a1acee5f2f1de3a0b3d7ef0927f93a889dfa3331
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 693d1690660d20370e5fdbd80646bd2ee071ef925af3ae46cc102208ab1b9db8
[INFO] running `Command { std: "docker" "start" "-a" "693d1690660d20370e5fdbd80646bd2ee071ef925af3ae46cc102208ab1b9db8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling metrics-core v0.5.2
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling hyper v0.13.10
[INFO] [stderr]    Compiling metrics-exporter-http v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.14s
[INFO] running `Command { std: "docker" "inspect" "693d1690660d20370e5fdbd80646bd2ee071ef925af3ae46cc102208ab1b9db8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "693d1690660d20370e5fdbd80646bd2ee071ef925af3ae46cc102208ab1b9db8", kill_on_drop: false }`
[INFO] [stdout] 693d1690660d20370e5fdbd80646bd2ee071ef925af3ae46cc102208ab1b9db8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c2fbcb05b75efeb7259a90b4fa04311a24f222cdc6fc450de3fd846ad9002ad
[INFO] running `Command { std: "docker" "start" "-a" "8c2fbcb05b75efeb7259a90b4fa04311a24f222cdc6fc450de3fd846ad9002ad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling metrics-exporter-http v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "8c2fbcb05b75efeb7259a90b4fa04311a24f222cdc6fc450de3fd846ad9002ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c2fbcb05b75efeb7259a90b4fa04311a24f222cdc6fc450de3fd846ad9002ad", kill_on_drop: false }`
[INFO] [stdout] 8c2fbcb05b75efeb7259a90b4fa04311a24f222cdc6fc450de3fd846ad9002ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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=warn" "-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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 00d8e83ad83436bfbdd7f445c72b11050ff157e126f70af01f7c002d6a0389aa
[INFO] running `Command { std: "docker" "start" "-a" "00d8e83ad83436bfbdd7f445c72b11050ff157e126f70af01f7c002d6a0389aa", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metrics_exporter_http-989c020576fc1e8c)
[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 metrics-exporter-http
[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" "00d8e83ad83436bfbdd7f445c72b11050ff157e126f70af01f7c002d6a0389aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00d8e83ad83436bfbdd7f445c72b11050ff157e126f70af01f7c002d6a0389aa", kill_on_drop: false }`
[INFO] [stdout] 00d8e83ad83436bfbdd7f445c72b11050ff157e126f70af01f7c002d6a0389aa