[INFO] fetching crate serde-bench 0.0.13...
[INFO] checking serde-bench-0.0.13 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate serde-bench 0.0.13 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate serde-bench 0.0.13
[INFO] finished tweaking crates.io crate serde-bench 0.0.13
[INFO] tweaked toml for crates.io crate serde-bench 0.0.13 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-bench 0.0.13 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-bench 0.0.13 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f6d783c6b315a40ee880b8d440bed690d3f011ba6554c49298183ecb18b4e4a
[INFO] running `Command { std: "docker" "start" "-a" "5f6d783c6b315a40ee880b8d440bed690d3f011ba6554c49298183ecb18b4e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f6d783c6b315a40ee880b8d440bed690d3f011ba6554c49298183ecb18b4e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f6d783c6b315a40ee880b8d440bed690d3f011ba6554c49298183ecb18b4e4a", kill_on_drop: false }`
[INFO] [stdout] 5f6d783c6b315a40ee880b8d440bed690d3f011ba6554c49298183ecb18b4e4a
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b27173a607389f72709087808f372f5c0ff8e603a487273b36b560027dd7cad8
[INFO] running `Command { std: "docker" "start" "-a" "b27173a607389f72709087808f372f5c0ff8e603a487273b36b560027dd7cad8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]     Checking unty v0.0.3
[INFO] [stderr]     Checking cobs v0.2.3
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling bincode_derive v2.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]    Compiling serde_derive v1.0.218
[INFO] [stderr]     Checking bincode v2.0.0
[INFO] [stderr]     Checking serde-bench v0.0.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking postcard v1.1.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `Command { std: "docker" "inspect" "b27173a607389f72709087808f372f5c0ff8e603a487273b36b560027dd7cad8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27173a607389f72709087808f372f5c0ff8e603a487273b36b560027dd7cad8", kill_on_drop: false }`
[INFO] [stdout] b27173a607389f72709087808f372f5c0ff8e603a487273b36b560027dd7cad8