[INFO] fetching crate metrsd 0.1.0...
[INFO] checking metrsd-0.1.0 against master#1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492 for pr-118553-2
[INFO] extracting crate metrsd 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate metrsd 0.1.0 on toolchain 1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrsd 0.1.0
[INFO] finished tweaking crates.io crate metrsd 0.1.0
[INFO] tweaked toml for crates.io crate metrsd 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate metrsd 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking metrsd-0.1.0 against try#a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33 for pr-118553-2
[INFO] extracting crate metrsd 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate metrsd 0.1.0 on toolchain a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrsd 0.1.0
[INFO] finished tweaking crates.io crate metrsd 0.1.0
[INFO] tweaked toml for crates.io crate metrsd 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate metrsd 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ntex-macros v0.1.3
[INFO] [stderr]   Downloaded ntex-rt v0.4.7
[INFO] [stderr]   Downloaded ntex-codec v0.6.2
[INFO] [stderr]   Downloaded ntex-bytes v0.1.19
[INFO] [stderr]   Downloaded ntex-util v0.2.0
[INFO] [stderr]   Downloaded ntex-tls v0.2.4
[INFO] [stderr]   Downloaded ntex-http v0.1.9
[INFO] [stderr]   Downloaded ntex-tokio v0.2.2
[INFO] [stderr]   Downloaded sysinfo v0.27.7
[INFO] [stderr]   Downloaded ntex-router v0.5.1
[INFO] [stderr]   Downloaded metrs_stubs v0.1.0
[INFO] [stderr]   Downloaded ntex-service v1.0.1
[INFO] [stderr]   Downloaded ntex-connect v0.2.1
[INFO] [stderr]   Downloaded ntex-io v0.2.9
[INFO] [stderr]   Downloaded ntex-h2 v0.2.1
[INFO] [stderr]   Downloaded ntex v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3191113528bd2cc494154046c22d67a3eb9bfe4e5f8cd5bd74a7743f322563b4
[INFO] running `Command { std: "docker" "start" "-a" "3191113528bd2cc494154046c22d67a3eb9bfe4e5f8cd5bd74a7743f322563b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3191113528bd2cc494154046c22d67a3eb9bfe4e5f8cd5bd74a7743f322563b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3191113528bd2cc494154046c22d67a3eb9bfe4e5f8cd5bd74a7743f322563b4", kill_on_drop: false }`
[INFO] [stdout] 3191113528bd2cc494154046c22d67a3eb9bfe4e5f8cd5bd74a7743f322563b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de1f9b9860eb84c4e5539d9b56cd63f756f4c3ebfe22731c59213a616ca8fabb
[INFO] running `Command { std: "docker" "start" "-a" "de1f9b9860eb84c4e5539d9b56cd63f756f4c3ebfe22731c59213a616ca8fabb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling futures-core v0.3.26
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking futures-sink v0.3.26
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tokio v1.25.0
[INFO] [stderr]     Checking futures-micro v0.5.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking concurrent-queue v2.1.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "de1f9b9860eb84c4e5539d9b56cd63f756f4c3ebfe22731c59213a616ca8fabb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de1f9b9860eb84c4e5539d9b56cd63f756f4c3ebfe22731c59213a616ca8fabb", kill_on_drop: false }`
[INFO] [stdout] de1f9b9860eb84c4e5539d9b56cd63f756f4c3ebfe22731c59213a616ca8fabb