[INFO] fetching crate serdeio 0.4.1...
[INFO] building serdeio-0.4.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate serdeio 0.4.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate serdeio 0.4.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate serdeio 0.4.1
[INFO] tweaked toml for crates.io crate serdeio 0.4.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate serdeio 0.4.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serdeio 0.4.1 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ece80eed438b20d92b3ece2f53b1ac5a7ab1a99b05015c9bbe30b8b6d9e12530
[INFO] running `Command { std: "docker" "start" "-a" "ece80eed438b20d92b3ece2f53b1ac5a7ab1a99b05015c9bbe30b8b6d9e12530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ece80eed438b20d92b3ece2f53b1ac5a7ab1a99b05015c9bbe30b8b6d9e12530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece80eed438b20d92b3ece2f53b1ac5a7ab1a99b05015c9bbe30b8b6d9e12530", kill_on_drop: false }`
[INFO] [stdout] ece80eed438b20d92b3ece2f53b1ac5a7ab1a99b05015c9bbe30b8b6d9e12530
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 084c4e4151a30894b941f77ad1b195dc32600335abaa4d106d9d2b35ce6a21ea
[INFO] running `Command { std: "docker" "start" "-a" "084c4e4151a30894b941f77ad1b195dc32600335abaa4d106d9d2b35ce6a21ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling serdeio v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.01s
[INFO] running `Command { std: "docker" "inspect" "084c4e4151a30894b941f77ad1b195dc32600335abaa4d106d9d2b35ce6a21ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "084c4e4151a30894b941f77ad1b195dc32600335abaa4d106d9d2b35ce6a21ea", kill_on_drop: false }`
[INFO] [stdout] 084c4e4151a30894b941f77ad1b195dc32600335abaa4d106d9d2b35ce6a21ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6a844dd35e152ce8b3880a4a486ddb10acc8b09ffa51348a249f94977f20cd3
[INFO] running `Command { std: "docker" "start" "-a" "c6a844dd35e152ce8b3880a4a486ddb10acc8b09ffa51348a249f94977f20cd3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serdeio v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "c6a844dd35e152ce8b3880a4a486ddb10acc8b09ffa51348a249f94977f20cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a844dd35e152ce8b3880a4a486ddb10acc8b09ffa51348a249f94977f20cd3", kill_on_drop: false }`
[INFO] [stdout] c6a844dd35e152ce8b3880a4a486ddb10acc8b09ffa51348a249f94977f20cd3