[INFO] cloning repository https://github.com/grtlr/diamonds-json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grtlr/diamonds-json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrtlr%2Fdiamonds-json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrtlr%2Fdiamonds-json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ada4e77f7686e57f146ce5da109b5857ae04c4d6
[INFO] checking grtlr/diamonds-json against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrtlr%2Fdiamonds-json" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grtlr/diamonds-json on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/grtlr/diamonds-json
[INFO] finished tweaking git repo https://github.com/grtlr/diamonds-json
[INFO] tweaked toml for git repo https://github.com/grtlr/diamonds-json written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/grtlr/diamonds-json already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded serde_json v1.0.32
[INFO] [stderr]   Downloaded syn v0.15.17
[INFO] [stderr]   Downloaded csv v1.0.2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", 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] 737831409a37579a2cd84a6209054656cf47ff9165e7106548b9e3227d26ac2e
[INFO] running `Command { std: "docker" "start" "-a" "737831409a37579a2cd84a6209054656cf47ff9165e7106548b9e3227d26ac2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "737831409a37579a2cd84a6209054656cf47ff9165e7106548b9e3227d26ac2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737831409a37579a2cd84a6209054656cf47ff9165e7106548b9e3227d26ac2e", kill_on_drop: false }`
[INFO] [stdout] 737831409a37579a2cd84a6209054656cf47ff9165e7106548b9e3227d26ac2e
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] cddf9321555acf65889975c6f7d4a881cfcf303452d3c11dfe09173684479e63
[INFO] running `Command { std: "docker" "start" "-a" "cddf9321555acf65889975c6f7d4a881cfcf303452d3c11dfe09173684479e63", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling syn v0.15.17
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking diamonds-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.65s
[INFO] running `Command { std: "docker" "inspect" "cddf9321555acf65889975c6f7d4a881cfcf303452d3c11dfe09173684479e63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cddf9321555acf65889975c6f7d4a881cfcf303452d3c11dfe09173684479e63", kill_on_drop: false }`
[INFO] [stdout] cddf9321555acf65889975c6f7d4a881cfcf303452d3c11dfe09173684479e63