[INFO] fetching crate yaml2json-rs-bin 0.2.8...
[INFO] checking yaml2json-rs-bin-0.2.8 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate yaml2json-rs-bin 0.2.8 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate yaml2json-rs-bin 0.2.8 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yaml2json-rs-bin 0.2.8
[INFO] finished tweaking crates.io crate yaml2json-rs-bin 0.2.8
[INFO] tweaked toml for crates.io crate yaml2json-rs-bin 0.2.8 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate yaml2json-rs-bin 0.2.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.22
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded anyhow v1.0.36
[INFO] [stderr]   Downloaded yaml-split v0.2.8
[INFO] [stderr]   Downloaded yaml2json-rs v0.2.8
[INFO] [stderr]   Downloaded dtoa v0.4.6
[INFO] [stderr]   Downloaded linked-hash-map v0.5.3
[INFO] [stderr]   Downloaded thiserror v1.0.22
[INFO] [stderr]   Downloaded yaml-rust v0.4.4
[INFO] [stderr]   Downloaded syn v1.0.54
[INFO] [stderr]   Downloaded serde_yaml v0.8.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c852848aaf31e39c5ba75817edd239cb8e026e3dff50be4a35f2048bef681dbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c852848aaf31e39c5ba75817edd239cb8e026e3dff50be4a35f2048bef681dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c852848aaf31e39c5ba75817edd239cb8e026e3dff50be4a35f2048bef681dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c852848aaf31e39c5ba75817edd239cb8e026e3dff50be4a35f2048bef681dbb", kill_on_drop: false }`
[INFO] [stdout] c852848aaf31e39c5ba75817edd239cb8e026e3dff50be4a35f2048bef681dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ac370987b85b2b4f133aca905495454b2e837ccd15ae0240d6f4e2d0cf01ad8f
[INFO] running `Command { std: "docker" "start" "-a" "ac370987b85b2b4f133aca905495454b2e837ccd15ae0240d6f4e2d0cf01ad8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking yaml-split v0.2.8
[INFO] [stderr]     Checking yaml2json-rs v0.2.8
[INFO] [stderr]     Checking yaml2json-rs-bin v0.2.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.11s
[INFO] running `Command { std: "docker" "inspect" "ac370987b85b2b4f133aca905495454b2e837ccd15ae0240d6f4e2d0cf01ad8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac370987b85b2b4f133aca905495454b2e837ccd15ae0240d6f4e2d0cf01ad8f", kill_on_drop: false }`
[INFO] [stdout] ac370987b85b2b4f133aca905495454b2e837ccd15ae0240d6f4e2d0cf01ad8f