[INFO] fetching crate atelier_json 0.2.1...
[INFO] checking atelier_json-0.2.1 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate atelier_json 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate atelier_json 0.2.1 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atelier_json 0.2.1
[INFO] finished tweaking crates.io crate atelier_json 0.2.1
[INFO] tweaked toml for crates.io crate atelier_json 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate atelier_json 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6731eda99f202ef742e7a56f794601e0973d656bfd7bb89997cecb74c6c13dbe
[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" "6731eda99f202ef742e7a56f794601e0973d656bfd7bb89997cecb74c6c13dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6731eda99f202ef742e7a56f794601e0973d656bfd7bb89997cecb74c6c13dbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6731eda99f202ef742e7a56f794601e0973d656bfd7bb89997cecb74c6c13dbe", kill_on_drop: false }`
[INFO] [stdout] 6731eda99f202ef742e7a56f794601e0973d656bfd7bb89997cecb74c6c13dbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4aa742fb1c51e7f6782fbc61f085e0cd967e96707910120524bcd1d3e874ad16
[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" "4aa742fb1c51e7f6782fbc61f085e0cd967e96707910120524bcd1d3e874ad16", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking atelier_core v0.2.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking atelier_json v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling extend v0.1.2
[INFO] [stderr]     Checking assert-json-diff v1.1.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "4aa742fb1c51e7f6782fbc61f085e0cd967e96707910120524bcd1d3e874ad16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4aa742fb1c51e7f6782fbc61f085e0cd967e96707910120524bcd1d3e874ad16", kill_on_drop: false }`
[INFO] [stdout] 4aa742fb1c51e7f6782fbc61f085e0cd967e96707910120524bcd1d3e874ad16