[INFO] fetching crate jsonst 0.1.0...
[INFO] checking jsonst-0.1.0 against beta for pr-78714
[INFO] extracting crate jsonst 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate jsonst 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsonst 0.1.0
[INFO] finished tweaking crates.io crate jsonst 0.1.0
[INFO] tweaked toml for crates.io crate jsonst 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate jsonst 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5533ab48a8fd309e5e9ed02c3742cbe304728db0f43985b99f2398875f23d608
[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" "5533ab48a8fd309e5e9ed02c3742cbe304728db0f43985b99f2398875f23d608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5533ab48a8fd309e5e9ed02c3742cbe304728db0f43985b99f2398875f23d608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5533ab48a8fd309e5e9ed02c3742cbe304728db0f43985b99f2398875f23d608", kill_on_drop: false }`
[INFO] [stdout] 5533ab48a8fd309e5e9ed02c3742cbe304728db0f43985b99f2398875f23d608
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 1f8949fa5e1860f880de43c51d0b7a0cebf3c8e139d4ae482cc0103f3abea7de
[INFO] running `Command { std: "docker" "start" "-a" "1f8949fa5e1860f880de43c51d0b7a0cebf3c8e139d4ae482cc0103f3abea7de", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.22
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking paw-raw v1.0.0
[INFO] [stderr]     Checking num-cmp v0.1.0
[INFO] [stderr]    Compiling paste v1.0.1
[INFO] [stderr]     Checking iter-read v0.2.1
[INFO] [stderr]     Checking hmac-sha256 v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]    Compiling rayon v1.4.0
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking rayon-core v1.8.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking chrono v0.4.17
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling valico v3.4.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking http_req v0.7.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling paw-attributes v1.0.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]     Checking paw v1.0.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking structopt v0.3.18
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking iri-string v0.3.0
[INFO] [stderr]     Checking serde_with v1.4.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking serde-pickle v0.6.1
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking json5 v0.2.8
[INFO] [stderr]     Checking ron v0.6.2
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking json-pointer v0.3.4
[INFO] [stderr]     Checking jsonway v2.0.0
[INFO] [stderr]     Checking bson v1.1.0
[INFO] [stderr]     Checking infers-jsonschema v0.1.0
[INFO] [stderr]     Checking jsonschema-valid v0.4.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking jsonschema v0.3.1
[INFO] [stderr]     Checking jsonst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 55s
[INFO] running `Command { std: "docker" "inspect" "1f8949fa5e1860f880de43c51d0b7a0cebf3c8e139d4ae482cc0103f3abea7de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f8949fa5e1860f880de43c51d0b7a0cebf3c8e139d4ae482cc0103f3abea7de", kill_on_drop: false }`
[INFO] [stdout] 1f8949fa5e1860f880de43c51d0b7a0cebf3c8e139d4ae482cc0103f3abea7de