[INFO] fetching crate zng-ext-font 0.8.2...
[INFO] testing zng-ext-font-0.8.2 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate zng-ext-font 0.8.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate zng-ext-font 0.8.2
[INFO] finished tweaking crates.io crate zng-ext-font 0.8.2
[INFO] tweaked toml for crates.io crate zng-ext-font 0.8.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zng-ext-font 0.8.2 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zng-ext-font 0.8.2 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zng-state-map v0.6.2
[INFO] [stderr]   Downloaded zng-env v0.6.2
[INFO] [stderr]   Downloaded zng-app-context v0.8.2
[INFO] [stderr]   Downloaded pocket-resources v0.3.2
[INFO] [stderr]   Downloaded hyphenation_commons v0.8.4
[INFO] [stderr]   Downloaded zng-ext-l10n-proc-macros v0.3.1
[INFO] [stderr]   Downloaded zng-unique-id v0.7.2
[INFO] [stderr]   Downloaded zng-color v0.7.2
[INFO] [stderr]   Downloaded zng-ext-fs-watcher v0.6.2
[INFO] [stderr]   Downloaded zng-ext-image v0.6.2
[INFO] [stderr]   Downloaded zng-task v0.7.2
[INFO] [stderr]   Downloaded zng-ext-l10n v0.9.2
[INFO] [stderr]   Downloaded zng-view-api v0.14.2
[INFO] [stderr]   Downloaded zng-layout v0.5.2
[INFO] [stderr]   Downloaded zng-time v0.5.2
[INFO] [stderr]   Downloaded zng-var v0.8.2
[INFO] [stderr]   Downloaded zng-app v0.17.2
[INFO] [stderr]   Downloaded hyphenation v0.8.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b81ba1d0a9a28ef987c0a58b8c2470880ddb42a06d63ace67d928e73df888ff
[INFO] running `Command { std: "docker" "start" "-a" "5b81ba1d0a9a28ef987c0a58b8c2470880ddb42a06d63ace67d928e73df888ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b81ba1d0a9a28ef987c0a58b8c2470880ddb42a06d63ace67d928e73df888ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b81ba1d0a9a28ef987c0a58b8c2470880ddb42a06d63ace67d928e73df888ff", kill_on_drop: false }`
[INFO] [stdout] 5b81ba1d0a9a28ef987c0a58b8c2470880ddb42a06d63ace67d928e73df888ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05907370ff719e6a86487a27da5be48776a1f37825c3ade0c5b0cc003c1c3e45
[INFO] running `Command { std: "docker" "start" "-a" "05907370ff719e6a86487a27da5be48776a1f37825c3ade0c5b0cc003c1c3e45", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `serde_bytes v0.11.17`
[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 `serde_bytes v0.11.17`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_bytes-0.11.17`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "05907370ff719e6a86487a27da5be48776a1f37825c3ade0c5b0cc003c1c3e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05907370ff719e6a86487a27da5be48776a1f37825c3ade0c5b0cc003c1c3e45", kill_on_drop: false }`
[INFO] [stdout] 05907370ff719e6a86487a27da5be48776a1f37825c3ade0c5b0cc003c1c3e45