[INFO] fetching crate json_diff 0.1.1...
[INFO] checking json_diff-0.1.1 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate json_diff 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate json_diff 0.1.1 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json_diff 0.1.1
[INFO] finished tweaking crates.io crate json_diff 0.1.1
[INFO] tweaked toml for crates.io crate json_diff 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate json_diff 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e7a05bab6885a6cdbf102cce5cd711c6a0e8a9a21d97ff6e391bfcc6ae7bb36
[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" "3e7a05bab6885a6cdbf102cce5cd711c6a0e8a9a21d97ff6e391bfcc6ae7bb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e7a05bab6885a6cdbf102cce5cd711c6a0e8a9a21d97ff6e391bfcc6ae7bb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7a05bab6885a6cdbf102cce5cd711c6a0e8a9a21d97ff6e391bfcc6ae7bb36", kill_on_drop: false }`
[INFO] [stdout] 3e7a05bab6885a6cdbf102cce5cd711c6a0e8a9a21d97ff6e391bfcc6ae7bb36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2e77258ccbcc1f9f3645008e55eb88381ca9bfbcc32ef7c27bc5fde9bedbd33
[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" "b2e77258ccbcc1f9f3645008e55eb88381ca9bfbcc32ef7c27bc5fde9bedbd33", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking json_diff v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.38s
[INFO] running `Command { std: "docker" "inspect" "b2e77258ccbcc1f9f3645008e55eb88381ca9bfbcc32ef7c27bc5fde9bedbd33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2e77258ccbcc1f9f3645008e55eb88381ca9bfbcc32ef7c27bc5fde9bedbd33", kill_on_drop: false }`
[INFO] [stdout] b2e77258ccbcc1f9f3645008e55eb88381ca9bfbcc32ef7c27bc5fde9bedbd33