[INFO] fetching crate char_lcd_rgb_i2c 0.1.0...
[INFO] testing char_lcd_rgb_i2c-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate char_lcd_rgb_i2c 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate char_lcd_rgb_i2c 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate char_lcd_rgb_i2c 0.1.0
[INFO] tweaked toml for crates.io crate char_lcd_rgb_i2c 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate char_lcd_rgb_i2c 0.1.0 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 char_lcd_rgb_i2c 0.1.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-6-tc1/source/examples/lcd_demo.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `lcd_demo`
[INFO] [stderr]   * `example` target `lcd_demo`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mcp230xx v1.0.1
[INFO] [stderr]   Downloaded spin_sleep v1.3.0
[INFO] [stderr]   Downloaded rppal v0.22.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4f51906b7561c1e78429a21adf74b7a11aa140b6aa6546e63c2e405c20a02fe7
[INFO] running `Command { std: "docker" "start" "-a" "4f51906b7561c1e78429a21adf74b7a11aa140b6aa6546e63c2e405c20a02fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f51906b7561c1e78429a21adf74b7a11aa140b6aa6546e63c2e405c20a02fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f51906b7561c1e78429a21adf74b7a11aa140b6aa6546e63c2e405c20a02fe7", kill_on_drop: false }`
[INFO] [stdout] 4f51906b7561c1e78429a21adf74b7a11aa140b6aa6546e63c2e405c20a02fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 6fe2493e292e8e5e848ea72581eb67c8b0398ad9ca65cc7148fabfb5a4e84031
[INFO] running `Command { std: "docker" "start" "-a" "6fe2493e292e8e5e848ea72581eb67c8b0398ad9ca65cc7148fabfb5a4e84031", kill_on_drop: false }`
[INFO] [stderr] warning: file `/opt/rustwide/workdir/examples/lcd_demo.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `lcd_demo`
[INFO] [stderr]   * `example` target `lcd_demo`
[INFO] [stderr] error: failed to download `libc v0.2.170`
[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 `libc v0.2.170`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.170`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "6fe2493e292e8e5e848ea72581eb67c8b0398ad9ca65cc7148fabfb5a4e84031", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe2493e292e8e5e848ea72581eb67c8b0398ad9ca65cc7148fabfb5a4e84031", kill_on_drop: false }`
[INFO] [stdout] 6fe2493e292e8e5e848ea72581eb67c8b0398ad9ca65cc7148fabfb5a4e84031