[INFO] fetching crate entropy-rs 0.2.0-alpha.3...
[INFO] checking entropy-rs-0.2.0-alpha.3 against try#ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1 for pr-145108
[INFO] extracting crate entropy-rs 0.2.0-alpha.3 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate entropy-rs 0.2.0-alpha.3
[INFO] finished tweaking crates.io crate entropy-rs 0.2.0-alpha.3
[INFO] tweaked toml for crates.io crate entropy-rs 0.2.0-alpha.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate entropy-rs 0.2.0-alpha.3 on toolchain ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate entropy-rs 0.2.0-alpha.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" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode-sled v0.0.2
[INFO] [stderr]   Downloaded builder_macro v0.5.1
[INFO] [stderr]   Downloaded dircpy v0.3.15
[INFO] [stderr]   Downloaded sensible-dbg v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 472c56bfd8197bf8d3863bcd460ac55bb31cb4f2b8908336d1a3e91bfa5d3c72
[INFO] running `Command { std: "docker" "start" "-a" "472c56bfd8197bf8d3863bcd460ac55bb31cb4f2b8908336d1a3e91bfa5d3c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "472c56bfd8197bf8d3863bcd460ac55bb31cb4f2b8908336d1a3e91bfa5d3c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "472c56bfd8197bf8d3863bcd460ac55bb31cb4f2b8908336d1a3e91bfa5d3c72", kill_on_drop: false }`
[INFO] [stdout] 472c56bfd8197bf8d3863bcd460ac55bb31cb4f2b8908336d1a3e91bfa5d3c72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea2a3ad18c95f0fbd312b0e34d84d2ded32189379c9cfbf3147495ee559ceb19
[INFO] running `Command { std: "docker" "start" "-a" "ea2a3ad18c95f0fbd312b0e34d84d2ded32189379c9cfbf3147495ee559ceb19", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `async-trait v0.1.74`
[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 `async-trait v0.1.74`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/async-trait-0.1.74`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "ea2a3ad18c95f0fbd312b0e34d84d2ded32189379c9cfbf3147495ee559ceb19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea2a3ad18c95f0fbd312b0e34d84d2ded32189379c9cfbf3147495ee559ceb19", kill_on_drop: false }`
[INFO] [stdout] ea2a3ad18c95f0fbd312b0e34d84d2ded32189379c9cfbf3147495ee559ceb19