[INFO] fetching crate rocket-json-response 0.5.16...
[INFO] checking rocket-json-response-0.5.16 against try#82acd1d76add2232e19c1f0feb250d2a19ec6efe for pr-81213
[INFO] extracting crate rocket-json-response 0.5.16 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rocket-json-response 0.5.16 on toolchain 82acd1d76add2232e19c1f0feb250d2a19ec6efe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rocket-json-response 0.5.16
[INFO] finished tweaking crates.io crate rocket-json-response 0.5.16
[INFO] tweaked toml for crates.io crate rocket-json-response 0.5.16 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rocket-json-response 0.5.16 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded json-gettext v3.2.8
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7ddd220be0f589f2fd01673f83a7fb543f6d61a611d0a4e685359ee0f41ceaa
[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" "b7ddd220be0f589f2fd01673f83a7fb543f6d61a611d0a4e685359ee0f41ceaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7ddd220be0f589f2fd01673f83a7fb543f6d61a611d0a4e685359ee0f41ceaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ddd220be0f589f2fd01673f83a7fb543f6d61a611d0a4e685359ee0f41ceaa", kill_on_drop: false }`
[INFO] [stdout] b7ddd220be0f589f2fd01673f83a7fb543f6d61a611d0a4e685359ee0f41ceaa
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+82acd1d76add2232e19c1f0feb250d2a19ec6efe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07af6adbbb5f17a7560d7bb69e4685edde1c5d8ee0f32c9613c5ade67f898efe
[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" "07af6adbbb5f17a7560d7bb69e4685edde1c5d8ee0f32c9613c5ade67f898efe", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking rocket v0.4.5
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]    Compiling enum-ordinalize v3.1.8
[INFO] [stderr]     Checking json-gettext v3.2.8
[INFO] [stderr]     Checking rocket-json-response v0.5.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.90s
[INFO] running `Command { std: "docker" "inspect" "07af6adbbb5f17a7560d7bb69e4685edde1c5d8ee0f32c9613c5ade67f898efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07af6adbbb5f17a7560d7bb69e4685edde1c5d8ee0f32c9613c5ade67f898efe", kill_on_drop: false }`
[INFO] [stdout] 07af6adbbb5f17a7560d7bb69e4685edde1c5d8ee0f32c9613c5ade67f898efe