[INFO] fetching crate assert2 0.3.15...
[INFO] checking assert2-0.3.15 against master#d14d202262d13df896b0c624b0cec6e4bfde631a for pr-143028
[INFO] extracting crate assert2 0.3.15 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate assert2 0.3.15
[INFO] finished tweaking crates.io crate assert2 0.3.15
[INFO] tweaked toml for crates.io crate assert2 0.3.15 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate assert2 0.3.15 on toolchain d14d202262d13df896b0c624b0cec6e4bfde631a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate assert2 0.3.15 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" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc45fd63c717105e685d7d844c863ecb0b09270733ff35712ea2e1d1f0b24908
[INFO] running `Command { std: "docker" "start" "-a" "dc45fd63c717105e685d7d844c863ecb0b09270733ff35712ea2e1d1f0b24908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc45fd63c717105e685d7d844c863ecb0b09270733ff35712ea2e1d1f0b24908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc45fd63c717105e685d7d844c863ecb0b09270733ff35712ea2e1d1f0b24908", kill_on_drop: false }`
[INFO] [stdout] dc45fd63c717105e685d7d844c863ecb0b09270733ff35712ea2e1d1f0b24908
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8969920ede06c7b716b0f178be151ec3830b6c699e14bb6bb0aec09b7f88f991
[INFO] running `Command { std: "docker" "start" "-a" "8969920ede06c7b716b0f178be151ec3830b6c699e14bb6bb0aec09b7f88f991", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling assert2-macros v0.3.15
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.76
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetat6CfIl/full.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8969920ede06c7b716b0f178be151ec3830b6c699e14bb6bb0aec09b7f88f991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8969920ede06c7b716b0f178be151ec3830b6c699e14bb6bb0aec09b7f88f991", kill_on_drop: false }`
[INFO] [stdout] 8969920ede06c7b716b0f178be151ec3830b6c699e14bb6bb0aec09b7f88f991