[INFO] fetching crate connection-layer 0.0.2...
[INFO] checking connection-layer-0.0.2 against master#35d55b34bffd51384ac430cc20852b7d16dd5a90 for pr-145108
[INFO] extracting crate connection-layer 0.0.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate connection-layer 0.0.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate connection-layer 0.0.2
[INFO] tweaked toml for crates.io crate connection-layer 0.0.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate connection-layer 0.0.2 on toolchain 35d55b34bffd51384ac430cc20852b7d16dd5a90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "generate-lockfile" "--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
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded freelist-rs v0.0.4
[INFO] [stderr]   Downloaded datagram v0.0.2
[INFO] [stderr]   Downloaded flood-rs v0.0.12
[INFO] [stderr]   Downloaded hexify v0.0.3
[INFO] [stderr]   Downloaded mash-rs v0.0.1
[INFO] [stderr]   Downloaded secure-random v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f479cb68fea4d7bffb70eb9d86f06b9146889410796cfed29dff6738089528d
[INFO] running `Command { std: "docker" "start" "-a" "9f479cb68fea4d7bffb70eb9d86f06b9146889410796cfed29dff6738089528d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f479cb68fea4d7bffb70eb9d86f06b9146889410796cfed29dff6738089528d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f479cb68fea4d7bffb70eb9d86f06b9146889410796cfed29dff6738089528d", kill_on_drop: false }`
[INFO] [stdout] 9f479cb68fea4d7bffb70eb9d86f06b9146889410796cfed29dff6738089528d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+35d55b34bffd51384ac430cc20852b7d16dd5a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d56d019b2d65295a99fb65074deec1e05d0bb211ff4364b32c38d1769cb2e2ff
[INFO] running `Command { std: "docker" "start" "-a" "d56d019b2d65295a99fb65074deec1e05d0bb211ff4364b32c38d1769cb2e2ff", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `tracing-subscriber v0.3.20`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `tracing-subscriber v0.3.20`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-subscriber-0.3.20`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "d56d019b2d65295a99fb65074deec1e05d0bb211ff4364b32c38d1769cb2e2ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56d019b2d65295a99fb65074deec1e05d0bb211ff4364b32c38d1769cb2e2ff", kill_on_drop: false }`
[INFO] [stdout] d56d019b2d65295a99fb65074deec1e05d0bb211ff4364b32c38d1769cb2e2ff