[INFO] fetching crate robust 0.2.3...
[INFO] checking robust-0.2.3 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate robust 0.2.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate robust 0.2.3 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate robust 0.2.3
[INFO] finished tweaking crates.io crate robust 0.2.3
[INFO] tweaked toml for crates.io crate robust 0.2.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate robust 0.2.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ebe354f25e9755209fe75482ce3ceb4254f156794090b5afe922fcaf3e5c89d
[INFO] running `Command { std: "docker" "start" "-a" "6ebe354f25e9755209fe75482ce3ceb4254f156794090b5afe922fcaf3e5c89d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ebe354f25e9755209fe75482ce3ceb4254f156794090b5afe922fcaf3e5c89d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ebe354f25e9755209fe75482ce3ceb4254f156794090b5afe922fcaf3e5c89d", kill_on_drop: false }`
[INFO] [stdout] 6ebe354f25e9755209fe75482ce3ceb4254f156794090b5afe922fcaf3e5c89d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dd57e995dc8cc4009e4486272aeca6e8ec8ac9bef7d2094616cabb581c4d316
[INFO] running `Command { std: "docker" "start" "-a" "7dd57e995dc8cc4009e4486272aeca6e8ec8ac9bef7d2094616cabb581c4d316", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking robust v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking float_extras v0.1.6
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "7dd57e995dc8cc4009e4486272aeca6e8ec8ac9bef7d2094616cabb581c4d316", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd57e995dc8cc4009e4486272aeca6e8ec8ac9bef7d2094616cabb581c4d316", kill_on_drop: false }`
[INFO] [stdout] 7dd57e995dc8cc4009e4486272aeca6e8ec8ac9bef7d2094616cabb581c4d316