[INFO] fetching crate nson 0.11.0...
[INFO] checking nson-0.11.0 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate nson 0.11.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nson 0.11.0 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nson 0.11.0
[INFO] finished tweaking crates.io crate nson 0.11.0
[INFO] tweaked toml for crates.io crate nson 0.11.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate nson 0.11.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", 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] bf5fd309cebbdfcb3e3286d3cb4885f7cee64bc84595461d4f66d6c783220e31
[INFO] running `Command { std: "docker" "start" "-a" "bf5fd309cebbdfcb3e3286d3cb4885f7cee64bc84595461d4f66d6c783220e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf5fd309cebbdfcb3e3286d3cb4885f7cee64bc84595461d4f66d6c783220e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf5fd309cebbdfcb3e3286d3cb4885f7cee64bc84595461d4f66d6c783220e31", kill_on_drop: false }`
[INFO] [stdout] bf5fd309cebbdfcb3e3286d3cb4885f7cee64bc84595461d4f66d6c783220e31
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d879b897aebf0a9800dbb72ff1425a37d891a4b6e221efbf3c7a2e40cce56e7
[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" "3d879b897aebf0a9800dbb72ff1425a37d891a4b6e221efbf3c7a2e40cce56e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking nson v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.18s
[INFO] running `Command { std: "docker" "inspect" "3d879b897aebf0a9800dbb72ff1425a37d891a4b6e221efbf3c7a2e40cce56e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d879b897aebf0a9800dbb72ff1425a37d891a4b6e221efbf3c7a2e40cce56e7", kill_on_drop: false }`
[INFO] [stdout] 3d879b897aebf0a9800dbb72ff1425a37d891a4b6e221efbf3c7a2e40cce56e7