[INFO] fetching crate fastcache 0.1.7...
[INFO] checking fastcache-0.1.7 against master#fe55364329579d361b1ab565728bc033a7dba07e for pr-146013
[INFO] extracting crate fastcache 0.1.7 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate fastcache 0.1.7
[INFO] finished tweaking crates.io crate fastcache 0.1.7
[INFO] tweaked toml for crates.io crate fastcache 0.1.7 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastcache 0.1.7 on toolchain fe55364329579d361b1ab565728bc033a7dba07e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe55364329579d361b1ab565728bc033a7dba07e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fastcache 0.1.7 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" "+fe55364329579d361b1ab565728bc033a7dba07e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+fe55364329579d361b1ab565728bc033a7dba07e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a94ee1f3d336f17710e8d594ff601bf9b513008f28b599785606111bea30e206
[INFO] running `Command { std: "docker" "start" "-a" "a94ee1f3d336f17710e8d594ff601bf9b513008f28b599785606111bea30e206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a94ee1f3d336f17710e8d594ff601bf9b513008f28b599785606111bea30e206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94ee1f3d336f17710e8d594ff601bf9b513008f28b599785606111bea30e206", kill_on_drop: false }`
[INFO] [stdout] a94ee1f3d336f17710e8d594ff601bf9b513008f28b599785606111bea30e206
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+fe55364329579d361b1ab565728bc033a7dba07e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b797f3c4905a933224229e278d50d8f4dc69e5d00376ee4c7fbf29fef73fa372
[INFO] running `Command { std: "docker" "start" "-a" "b797f3c4905a933224229e278d50d8f4dc69e5d00376ee4c7fbf29fef73fa372", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `version_check v0.9.5`
[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 `version_check v0.9.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/version_check-0.9.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "b797f3c4905a933224229e278d50d8f4dc69e5d00376ee4c7fbf29fef73fa372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b797f3c4905a933224229e278d50d8f4dc69e5d00376ee4c7fbf29fef73fa372", kill_on_drop: false }`
[INFO] [stdout] b797f3c4905a933224229e278d50d8f4dc69e5d00376ee4c7fbf29fef73fa372