[INFO] fetching crate sawp-json 0.2.0...
[INFO] checking sawp-json-0.2.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate sawp-json 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate sawp-json 0.2.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sawp-json 0.2.0
[INFO] finished tweaking crates.io crate sawp-json 0.2.0
[INFO] tweaked toml for crates.io crate sawp-json 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7b4fe917ff38bc29193cc067c28bca91d5ff1c218648c68f930989f5d5c316c
[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" "e7b4fe917ff38bc29193cc067c28bca91d5ff1c218648c68f930989f5d5c316c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7b4fe917ff38bc29193cc067c28bca91d5ff1c218648c68f930989f5d5c316c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b4fe917ff38bc29193cc067c28bca91d5ff1c218648c68f930989f5d5c316c", kill_on_drop: false }`
[INFO] [stdout] e7b4fe917ff38bc29193cc067c28bca91d5ff1c218648c68f930989f5d5c316c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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] f6c8c7302a7de642ffb4be3405a17d2f2ca9b57fdd0cd9a2b521f74844b648bc
[INFO] running `Command { std: "docker" "start" "-a" "f6c8c7302a7de642ffb4be3405a17d2f2ca9b57fdd0cd9a2b521f74844b648bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling lexical-core v0.7.5
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]    Compiling rstest v0.6.4
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking sawp v0.2.0
[INFO] [stderr]     Checking sawp-json v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] error: couldn't read benches/json.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sawp-json`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f6c8c7302a7de642ffb4be3405a17d2f2ca9b57fdd0cd9a2b521f74844b648bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6c8c7302a7de642ffb4be3405a17d2f2ca9b57fdd0cd9a2b521f74844b648bc", kill_on_drop: false }`
[INFO] [stdout] f6c8c7302a7de642ffb4be3405a17d2f2ca9b57fdd0cd9a2b521f74844b648bc