[INFO] fetching crate json-utils 0.3.5...
[INFO] checking json-utils-0.3.5 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate json-utils 0.3.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate json-utils 0.3.5 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json-utils 0.3.5
[INFO] finished tweaking crates.io crate json-utils 0.3.5
[INFO] tweaked toml for crates.io crate json-utils 0.3.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a81b8fc1553cf5875c7fd6a71645e858a54799fd6cee0c9796e78c31986312ed
[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" "a81b8fc1553cf5875c7fd6a71645e858a54799fd6cee0c9796e78c31986312ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a81b8fc1553cf5875c7fd6a71645e858a54799fd6cee0c9796e78c31986312ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a81b8fc1553cf5875c7fd6a71645e858a54799fd6cee0c9796e78c31986312ed", kill_on_drop: false }`
[INFO] [stdout] a81b8fc1553cf5875c7fd6a71645e858a54799fd6cee0c9796e78c31986312ed
[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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] 163071b0dc9302e46f932e69495a172875423d86e18665c82b26688831b462a6
[INFO] running `Command { std: "docker" "start" "-a" "163071b0dc9302e46f932e69495a172875423d86e18665c82b26688831b462a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking uritemplate v0.1.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling valico v3.5.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking jsonway v2.0.0
[INFO] [stderr]     Checking json-pointer v0.3.4
[INFO] [stderr]     Checking json-utils v0.3.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.19s
[INFO] running `Command { std: "docker" "inspect" "163071b0dc9302e46f932e69495a172875423d86e18665c82b26688831b462a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "163071b0dc9302e46f932e69495a172875423d86e18665c82b26688831b462a6", kill_on_drop: false }`
[INFO] [stdout] 163071b0dc9302e46f932e69495a172875423d86e18665c82b26688831b462a6