[INFO] fetching crate nson 0.8.6...
[INFO] checking nson-0.8.6 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate nson 0.8.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nson 0.8.6 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nson 0.8.6
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate nson 0.8.6
[INFO] tweaked toml for crates.io crate nson 0.8.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate nson 0.8.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base64 v0.12.0
[INFO] [stderr]   Downloaded serde_json v1.0.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfa0261458035032843a4d9057f89ae501572464a838046b08653403466b554b
[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" "dfa0261458035032843a4d9057f89ae501572464a838046b08653403466b554b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfa0261458035032843a4d9057f89ae501572464a838046b08653403466b554b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfa0261458035032843a4d9057f89ae501572464a838046b08653403466b554b", kill_on_drop: false }`
[INFO] [stdout] dfa0261458035032843a4d9057f89ae501572464a838046b08653403466b554b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4de00c592a5937ad712b0610425702b9e82035a736fd1a2f3bd64a6298e0d414
[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" "4de00c592a5937ad712b0610425702b9e82035a736fd1a2f3bd64a6298e0d414", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling quote v1.0.3
[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 v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.50
[INFO] [stderr]     Checking serde_bytes v0.11.3
[INFO] [stderr]     Checking nson v0.8.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.08s
[INFO] running `Command { std: "docker" "inspect" "4de00c592a5937ad712b0610425702b9e82035a736fd1a2f3bd64a6298e0d414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4de00c592a5937ad712b0610425702b9e82035a736fd1a2f3bd64a6298e0d414", kill_on_drop: false }`
[INFO] [stdout] 4de00c592a5937ad712b0610425702b9e82035a736fd1a2f3bd64a6298e0d414