[INFO] fetching crate jso 1.1.0...
[INFO] checking jso-1.1.0 against try#fcfb0ffc7ed7fc631df1136063939ef648434735 for pr-152543
[INFO] extracting crate jso 1.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate jso 1.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate jso 1.1.0
[INFO] tweaked toml for crates.io crate jso 1.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate jso 1.1.0 on toolchain fcfb0ffc7ed7fc631df1136063939ef648434735
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate jso 1.1.0 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" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74113e14bba649901545a973a03e422fb0e2f48105b093b88a98afd0ebb9b608
[INFO] running `Command { std: "docker" "start" "-a" "74113e14bba649901545a973a03e422fb0e2f48105b093b88a98afd0ebb9b608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74113e14bba649901545a973a03e422fb0e2f48105b093b88a98afd0ebb9b608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74113e14bba649901545a973a03e422fb0e2f48105b093b88a98afd0ebb9b608", kill_on_drop: false }`
[INFO] [stdout] 74113e14bba649901545a973a03e422fb0e2f48105b093b88a98afd0ebb9b608
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fcfb0ffc7ed7fc631df1136063939ef648434735" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 935e9ac133a151333002aedba79b3a97943247af0b94c8f5f2880e829cddaaec
[INFO] running `Command { std: "docker" "start" "-a" "935e9ac133a151333002aedba79b3a97943247af0b94c8f5f2880e829cddaaec", kill_on_drop: false }`
[INFO] [stderr]     Checking jso v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "935e9ac133a151333002aedba79b3a97943247af0b94c8f5f2880e829cddaaec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "935e9ac133a151333002aedba79b3a97943247af0b94c8f5f2880e829cddaaec", kill_on_drop: false }`
[INFO] [stdout] 935e9ac133a151333002aedba79b3a97943247af0b94c8f5f2880e829cddaaec