[INFO] fetching crate lando-attr 0.2.1...
[INFO] checking lando-attr-0.2.1 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate lando-attr 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lando-attr 0.2.1 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lando-attr 0.2.1
[INFO] finished tweaking crates.io crate lando-attr 0.2.1
[INFO] tweaked toml for crates.io crate lando-attr 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d168bf8e5ead03ed69be337ff3bd661aeb9e160e8102b915e6b499c10d3441b9
[INFO] running `Command { std: "docker" "start" "-a" "d168bf8e5ead03ed69be337ff3bd661aeb9e160e8102b915e6b499c10d3441b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d168bf8e5ead03ed69be337ff3bd661aeb9e160e8102b915e6b499c10d3441b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d168bf8e5ead03ed69be337ff3bd661aeb9e160e8102b915e6b499c10d3441b9", kill_on_drop: false }`
[INFO] [stdout] d168bf8e5ead03ed69be337ff3bd661aeb9e160e8102b915e6b499c10d3441b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 735472f0f3e1bc1f596573fefa2249b39726edafc2743359fd58100c238771ee
[INFO] running `Command { std: "docker" "start" "-a" "735472f0f3e1bc1f596573fefa2249b39726edafc2743359fd58100c238771ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking lando-attr v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "735472f0f3e1bc1f596573fefa2249b39726edafc2743359fd58100c238771ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "735472f0f3e1bc1f596573fefa2249b39726edafc2743359fd58100c238771ee", kill_on_drop: false }`
[INFO] [stdout] 735472f0f3e1bc1f596573fefa2249b39726edafc2743359fd58100c238771ee