[INFO] fetching crate serde_json 1.0.44...
[INFO] checking serde_json-1.0.44 against try#e60d9e09c55855f5a848fde8ad83e13131a5b241 for pr-68350
[INFO] extracting crate serde_json 1.0.44 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate serde_json 1.0.44 on toolchain e60d9e09c55855f5a848fde8ad83e13131a5b241
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde_json 1.0.44
[INFO] finished tweaking crates.io crate serde_json 1.0.44
[INFO] tweaked toml for crates.io crate serde_json 1.0.44 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0c4d115a975ea2e81a1df89d8c0b8ffdff0515650fbe290ac61e8676510c73bf
[INFO] running `"docker" "start" "-a" "0c4d115a975ea2e81a1df89d8c0b8ffdff0515650fbe290ac61e8676510c73bf"`
[INFO] [stderr]    Compiling psm v0.1.6
[INFO] [stderr]    Compiling stacker v0.1.6
[INFO] [stderr]    Compiling automod v0.1.2
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking serde_bytes v0.11.3
[INFO] [stderr]     Checking serde_json v1.0.44 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:339:39
[INFO] [stderr]     |
[INFO] [stderr] 339 |             ErrorCode::Io(ref err) => error::Error::description(err),
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking serde_stacker v0.1.1
[INFO] [stderr]     Checking trybuild v1.0.20
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:339:39
[INFO] [stderr]     |
[INFO] [stderr] 339 |             ErrorCode::Io(ref err) => error::Error::description(err),
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.71s
[INFO] running `"docker" "inspect" "0c4d115a975ea2e81a1df89d8c0b8ffdff0515650fbe290ac61e8676510c73bf"`
[INFO] running `"docker" "rm" "-f" "0c4d115a975ea2e81a1df89d8c0b8ffdff0515650fbe290ac61e8676510c73bf"`
[INFO] [stdout] 0c4d115a975ea2e81a1df89d8c0b8ffdff0515650fbe290ac61e8676510c73bf