[INFO] fetching crate json_schema_ast 0.2.0...
[INFO] checking json_schema_ast-0.2.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate json_schema_ast 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate json_schema_ast 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate json_schema_ast 0.2.0
[INFO] tweaked toml for crates.io crate json_schema_ast 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json_schema_ast 0.2.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate json_schema_ast 0.2.0 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de81ee3f53492712c7aeb529f9534b6c3460d7965bf9ff2899dff05e924a9dca
[INFO] running `Command { std: "docker" "start" "-a" "de81ee3f53492712c7aeb529f9534b6c3460d7965bf9ff2899dff05e924a9dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de81ee3f53492712c7aeb529f9534b6c3460d7965bf9ff2899dff05e924a9dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de81ee3f53492712c7aeb529f9534b6c3460d7965bf9ff2899dff05e924a9dca", kill_on_drop: false }`
[INFO] [stdout] de81ee3f53492712c7aeb529f9534b6c3460d7965bf9ff2899dff05e924a9dca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67b2b5b99df2672a8e7f93c5d74e242ae436390b6826e30475aadde18eeb06f2
[INFO] running `Command { std: "docker" "start" "-a" "67b2b5b99df2672a8e7f93c5d74e242ae436390b6826e30475aadde18eeb06f2", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `jsonschema v0.16.1`
[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 `jsonschema v0.16.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/jsonschema-0.16.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "67b2b5b99df2672a8e7f93c5d74e242ae436390b6826e30475aadde18eeb06f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b2b5b99df2672a8e7f93c5d74e242ae436390b6826e30475aadde18eeb06f2", kill_on_drop: false }`
[INFO] [stdout] 67b2b5b99df2672a8e7f93c5d74e242ae436390b6826e30475aadde18eeb06f2