[INFO] fetching crate json-patch 0.2.6...
[INFO] checking json-patch-0.2.6 against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] extracting crate json-patch 0.2.6 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate json-patch 0.2.6 on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json-patch 0.2.6
[INFO] finished tweaking crates.io crate json-patch 0.2.6
[INFO] tweaked toml for crates.io crate json-patch 0.2.6 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "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] 689a3b54fb3d3dcf51fc2618b90950297afeddf0667dc6be9ab283c1fc96256c
[INFO] running `Command { std: "docker" "start" "-a" "689a3b54fb3d3dcf51fc2618b90950297afeddf0667dc6be9ab283c1fc96256c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "689a3b54fb3d3dcf51fc2618b90950297afeddf0667dc6be9ab283c1fc96256c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "689a3b54fb3d3dcf51fc2618b90950297afeddf0667dc6be9ab283c1fc96256c", kill_on_drop: false }`
[INFO] [stdout] 689a3b54fb3d3dcf51fc2618b90950297afeddf0667dc6be9ab283c1fc96256c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "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] bfbf3440e6b15794244151a63f0f217fd290b0a6636ec37d3c5c13e9da803c90
[INFO] running `Command { std: "docker" "start" "-a" "bfbf3440e6b15794244151a63f0f217fd290b0a6636ec37d3c5c13e9da803c90", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]     Checking serde v1.0.112
[INFO] [stderr]     Checking serde_json v1.0.55
[INFO] [stderr]     Checking treediff v3.0.2
[INFO] [stderr]     Checking json-patch v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:198:14
[INFO] [stdout]     |
[INFO] [stdout] 198 |         self.description().fmt(fmt)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:84:9
[INFO] [stdout]     |
[INFO] [stdout] 84  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `json-patch`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:198:14
[INFO] [stdout]     |
[INFO] [stdout] 198 |         self.description().fmt(fmt)
[INFO] [stdout]     |              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:84:9
[INFO] [stdout]     |
[INFO] [stdout] 84  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bfbf3440e6b15794244151a63f0f217fd290b0a6636ec37d3c5c13e9da803c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfbf3440e6b15794244151a63f0f217fd290b0a6636ec37d3c5c13e9da803c90", kill_on_drop: false }`
[INFO] [stdout] bfbf3440e6b15794244151a63f0f217fd290b0a6636ec37d3c5c13e9da803c90