[INFO] fetching crate sval_json 1.0.0-alpha.4...
[INFO] checking sval_json-1.0.0-alpha.4 against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] extracting crate sval_json 1.0.0-alpha.4 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate sval_json 1.0.0-alpha.4 on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sval_json 1.0.0-alpha.4
[INFO] finished tweaking crates.io crate sval_json 1.0.0-alpha.4
[INFO] tweaked toml for crates.io crate sval_json 1.0.0-alpha.4 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sval v1.0.0-alpha.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6c81214314701c5eb48e393d0ff7b2676048e2e10877bff84bdbc9d1ff70d05
[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" "b6c81214314701c5eb48e393d0ff7b2676048e2e10877bff84bdbc9d1ff70d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6c81214314701c5eb48e393d0ff7b2676048e2e10877bff84bdbc9d1ff70d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6c81214314701c5eb48e393d0ff7b2676048e2e10877bff84bdbc9d1ff70d05", kill_on_drop: false }`
[INFO] [stdout] b6c81214314701c5eb48e393d0ff7b2676048e2e10877bff84bdbc9d1ff70d05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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] b6b50c0cd7ff4ba90f6aca2c7a80f169976f12279f91c3ce1c92b42901e2a734
[INFO] running `Command { std: "docker" "start" "-a" "b6b50c0cd7ff4ba90f6aca2c7a80f169976f12279f91c3ce1c92b42901e2a734", kill_on_drop: false }`
[INFO] [stderr]     Checking sval v1.0.0-alpha.4
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking sval_json v1.0.0-alpha.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "b6b50c0cd7ff4ba90f6aca2c7a80f169976f12279f91c3ce1c92b42901e2a734", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b50c0cd7ff4ba90f6aca2c7a80f169976f12279f91c3ce1c92b42901e2a734", kill_on_drop: false }`
[INFO] [stdout] b6b50c0cd7ff4ba90f6aca2c7a80f169976f12279f91c3ce1c92b42901e2a734