[INFO] fetching crate nu-plugin 0.106.1...
[INFO] testing nu-plugin-0.106.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate nu-plugin 0.106.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nu-plugin 0.106.1
[INFO] finished tweaking crates.io crate nu-plugin 0.106.1
[INFO] tweaked toml for crates.io crate nu-plugin 0.106.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nu-plugin 0.106.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nu-plugin 0.106.1 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `windows-sys v0.48.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/windows-sys-0.48.0/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   no targets specified in the manifest
[INFO] [stderr]   either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present
[INFO] testing nu-plugin-0.106.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate nu-plugin 0.106.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nu-plugin 0.106.1
[INFO] finished tweaking crates.io crate nu-plugin 0.106.1
[INFO] tweaked toml for crates.io crate nu-plugin 0.106.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nu-plugin 0.106.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nu-plugin 0.106.1 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcd99b1ba3d58cadd8b9f2433eb4c02ebf03ce3b35c13786fa7bbfa780c2e849
[INFO] running `Command { std: "docker" "start" "-a" "fcd99b1ba3d58cadd8b9f2433eb4c02ebf03ce3b35c13786fa7bbfa780c2e849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcd99b1ba3d58cadd8b9f2433eb4c02ebf03ce3b35c13786fa7bbfa780c2e849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcd99b1ba3d58cadd8b9f2433eb4c02ebf03ce3b35c13786fa7bbfa780c2e849", kill_on_drop: false }`
[INFO] [stdout] fcd99b1ba3d58cadd8b9f2433eb4c02ebf03ce3b35c13786fa7bbfa780c2e849
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2ef6e90c10904ac797adef1ac74a76378b2a8f03b6ef848f092221f3449c6b4
[INFO] running `Command { std: "docker" "start" "-a" "f2ef6e90c10904ac797adef1ac74a76378b2a8f03b6ef848f092221f3449c6b4", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `is_ci v1.2.0`
[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 `is_ci v1.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/is_ci-1.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "f2ef6e90c10904ac797adef1ac74a76378b2a8f03b6ef848f092221f3449c6b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2ef6e90c10904ac797adef1ac74a76378b2a8f03b6ef848f092221f3449c6b4", kill_on_drop: false }`
[INFO] [stdout] f2ef6e90c10904ac797adef1ac74a76378b2a8f03b6ef848f092221f3449c6b4