[INFO] cloning repository https://github.com/don-smith/rusty-chain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/don-smith/rusty-chain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdon-smith%2Frusty-chain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdon-smith%2Frusty-chain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 602b48e13ddad846d65ff2c4fa790764af44cd8e
[INFO] checking don-smith/rusty-chain against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdon-smith%2Frusty-chain" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/don-smith/rusty-chain on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/don-smith/rusty-chain
[INFO] finished tweaking git repo https://github.com/don-smith/rusty-chain
[INFO] tweaked toml for git repo https://github.com/don-smith/rusty-chain written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/don-smith/rusty-chain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v1.0.2
[INFO] [stderr]   Downloaded time v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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] 2f2cf9bd5a6c28d9c509605c2bf2c99b4ad8126763b12468880f21a803c35816
[INFO] running `Command { std: "docker" "start" "-a" "2f2cf9bd5a6c28d9c509605c2bf2c99b4ad8126763b12468880f21a803c35816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f2cf9bd5a6c28d9c509605c2bf2c99b4ad8126763b12468880f21a803c35816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f2cf9bd5a6c28d9c509605c2bf2c99b4ad8126763b12468880f21a803c35816", kill_on_drop: false }`
[INFO] [stdout] 2f2cf9bd5a6c28d9c509605c2bf2c99b4ad8126763b12468880f21a803c35816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 906ea75692a8d6c72a65f64beb253ac5c21c6dec45d517852653b6eb8009c077
[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" "906ea75692a8d6c72a65f64beb253ac5c21c6dec45d517852653b6eb8009c077", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking time v0.2.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking rusty-chain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.59s
[INFO] running `Command { std: "docker" "inspect" "906ea75692a8d6c72a65f64beb253ac5c21c6dec45d517852653b6eb8009c077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "906ea75692a8d6c72a65f64beb253ac5c21c6dec45d517852653b6eb8009c077", kill_on_drop: false }`
[INFO] [stdout] 906ea75692a8d6c72a65f64beb253ac5c21c6dec45d517852653b6eb8009c077