[INFO] fetching crate twine_car_store 0.1.3...
[INFO] testing twine_car_store-0.1.3 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate twine_car_store 0.1.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate twine_car_store 0.1.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate twine_car_store 0.1.3
[INFO] tweaked toml for crates.io crate twine_car_store 0.1.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate twine_car_store 0.1.3 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 twine_car_store 0.1.3 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 serde_ipld_dagjson v0.2.0
[INFO] [stderr]   Downloaded twine_builder v0.1.3
[INFO] [stderr]   Downloaded strobe-rs v0.10.0
[INFO] [stderr]   Downloaded quick_cache v0.6.13
[INFO] [stderr]   Downloaded twine_lib v0.2.2
[INFO] [stderr]   Downloaded serde_ipld_dagcbor v0.6.3
[INFO] [stderr]   Downloaded rs-car-sync v0.4.1
[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] a27e8fa7b8c370b3fc32fc1d068a9c8101c68461693b7ac1ee7f9618a7f3a56c
[INFO] running `Command { std: "docker" "start" "-a" "a27e8fa7b8c370b3fc32fc1d068a9c8101c68461693b7ac1ee7f9618a7f3a56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a27e8fa7b8c370b3fc32fc1d068a9c8101c68461693b7ac1ee7f9618a7f3a56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a27e8fa7b8c370b3fc32fc1d068a9c8101c68461693b7ac1ee7f9618a7f3a56c", kill_on_drop: false }`
[INFO] [stdout] a27e8fa7b8c370b3fc32fc1d068a9c8101c68461693b7ac1ee7f9618a7f3a56c
[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] 390a8835e87e9fc32166187d613f081e2471ef0d40006003206fe207b248e59f
[INFO] running `Command { std: "docker" "start" "-a" "390a8835e87e9fc32166187d613f081e2471ef0d40006003206fe207b248e59f", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `base16ct v0.2.0`
[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 `base16ct v0.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/base16ct-0.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "390a8835e87e9fc32166187d613f081e2471ef0d40006003206fe207b248e59f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "390a8835e87e9fc32166187d613f081e2471ef0d40006003206fe207b248e59f", kill_on_drop: false }`
[INFO] [stdout] 390a8835e87e9fc32166187d613f081e2471ef0d40006003206fe207b248e59f