[INFO] fetching crate cynthiaweb 3.0.0-alpha...
[INFO] testing cynthiaweb-3.0.0-alpha against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate cynthiaweb 3.0.0-alpha into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate cynthiaweb 3.0.0-alpha
[INFO] finished tweaking crates.io crate cynthiaweb 3.0.0-alpha
[INFO] tweaked toml for crates.io crate cynthiaweb 3.0.0-alpha written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cynthiaweb 3.0.0-alpha 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 cynthiaweb 3.0.0-alpha 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 pest_consume_macros v1.1.0
[INFO] [stderr]   Downloaded termsize v0.1.9
[INFO] [stderr]   Downloaded dhall_proc_macros v0.6.1
[INFO] [stderr]   Downloaded minicbor v0.18.0
[INFO] [stderr]   Downloaded pest_consume v1.1.3
[INFO] [stderr]   Downloaded boa_profiler v0.19.1
[INFO] [stderr]   Downloaded elsa v1.10.0
[INFO] [stderr]   Downloaded boa_interner v0.19.1
[INFO] [stderr]   Downloaded abnf-core v0.5.0
[INFO] [stderr]   Downloaded boa_gc v0.19.1
[INFO] [stderr]   Downloaded jsonc-parser v0.23.0
[INFO] [stderr]   Downloaded dhall v0.12.0
[INFO] [stderr]   Downloaded abnf v0.12.0
[INFO] [stderr]   Downloaded annotate-snippets v0.9.2
[INFO] [stderr]   Downloaded markdown v1.0.0-alpha.21
[INFO] [stderr]   Downloaded pretty v0.11.3
[INFO] [stderr]   Downloaded boa_macros v0.19.1
[INFO] [stderr]   Downloaded boa_ast v0.19.1
[INFO] [stderr]   Downloaded boa_string v0.19.1
[INFO] [stderr]   Downloaded boa_parser v0.19.1
[INFO] [stderr]   Downloaded regress v0.10.1
[INFO] [stderr]   Downloaded interactive_process v0.1.3
[INFO] [stderr]   Downloaded rust-lzma v0.6.0
[INFO] [stderr]   Downloaded random-string v1.1.0
[INFO] [stderr]   Downloaded abnf_to_pest v0.5.1
[INFO] [stderr]   Downloaded minicbor-derive v0.12.0
[INFO] [stderr]   Downloaded serde_dhall v0.12.1
[INFO] [stderr]   Downloaded boa_engine v0.19.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] be853165c802c83dd788c61cf93b1464d4125f88520512aa6f5a1c8b7e1567dd
[INFO] running `Command { std: "docker" "start" "-a" "be853165c802c83dd788c61cf93b1464d4125f88520512aa6f5a1c8b7e1567dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be853165c802c83dd788c61cf93b1464d4125f88520512aa6f5a1c8b7e1567dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be853165c802c83dd788c61cf93b1464d4125f88520512aa6f5a1c8b7e1567dd", kill_on_drop: false }`
[INFO] [stdout] be853165c802c83dd788c61cf93b1464d4125f88520512aa6f5a1c8b7e1567dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] db87d4ce6333ae8562401ef88c526500af7c70abd8913902b81933cb1fabaa52
[INFO] running `Command { std: "docker" "start" "-a" "db87d4ce6333ae8562401ef88c526500af7c70abd8913902b81933cb1fabaa52", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `cookie v0.16.2`
[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 `cookie v0.16.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cookie-0.16.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "db87d4ce6333ae8562401ef88c526500af7c70abd8913902b81933cb1fabaa52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db87d4ce6333ae8562401ef88c526500af7c70abd8913902b81933cb1fabaa52", kill_on_drop: false }`
[INFO] [stdout] db87d4ce6333ae8562401ef88c526500af7c70abd8913902b81933cb1fabaa52