[INFO] cloning repository https://github.com/k3d3/Roam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/k3d3/Roam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk3d3%2FRoam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk3d3%2FRoam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 46ad5b2474881327998af51f011b83fdfa7260b9
[INFO] checking k3d3/Roam against try#ff044a3d65d25a17c3e14c1530004e1540179ba7 for pr-78338
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fk3d3%2FRoam" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/k3d3/Roam on toolchain ff044a3d65d25a17c3e14c1530004e1540179ba7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/k3d3/Roam
[INFO] finished tweaking git repo https://github.com/k3d3/Roam
[INFO] tweaked toml for git repo https://github.com/k3d3/Roam written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/k3d3/Roam already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitflags v0.8.0
[INFO] [stderr]   Downloaded net2 v0.2.27
[INFO] [stderr]   Downloaded tokio-proto v0.1.0
[INFO] [stderr]   Downloaded base64 v0.4.0
[INFO] [stderr]   Downloaded clap v2.21.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[INFO] [stderr]   Downloaded gcc v0.3.43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c58c19606203a2938e4d8ae55a361aafd1579e1c2c587d7a6896db419c94c0e0
[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" "c58c19606203a2938e4d8ae55a361aafd1579e1c2c587d7a6896db419c94c0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c58c19606203a2938e4d8ae55a361aafd1579e1c2c587d7a6896db419c94c0e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58c19606203a2938e4d8ae55a361aafd1579e1c2c587d7a6896db419c94c0e0", kill_on_drop: false }`
[INFO] [stdout] c58c19606203a2938e4d8ae55a361aafd1579e1c2c587d7a6896db419c94c0e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "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] 55d013929dd6857a0abc783e2053e459d89c28ea5c6620075ad08f5d4ce397ae
[INFO] running `Command { std: "docker" "start" "-a" "55d013929dd6857a0abc783e2053e459d89c28ea5c6620075ad08f5d4ce397ae", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking log v0.3.7
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking num-traits v0.1.37
[INFO] [stderr]     Checking rustc-serialize v0.3.22
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking futures v0.1.10
[INFO] [stderr]     Checking base64 v0.4.0
[INFO] [stderr]    Compiling syn v0.11.9
[INFO] [stderr]     Checking net2 v0.2.27
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking term_size v0.2.3
[INFO] [stderr]     Checking serde_json v0.9.9
[INFO] [stderr]     Checking clap v2.21.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.10
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking mio v0.6.4
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking tokio-core v0.1.4
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.1
[INFO] [stderr]     Checking tokio-proto v0.1.0
[INFO] [stderr]    Compiling serde_derive v0.9.11
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking roam v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `to_json`
[INFO] [stdout]   --> src/network_config.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn to_json(&self) -> Result<String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_pretty_json`
[INFO] [stdout]   --> src/network_config.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn to_pretty_json(&self) -> Result<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_pretty_json`
[INFO] [stdout]   --> src/network_config.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn to_pretty_json(&self) -> Result<String> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.24s
[INFO] running `Command { std: "docker" "inspect" "55d013929dd6857a0abc783e2053e459d89c28ea5c6620075ad08f5d4ce397ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d013929dd6857a0abc783e2053e459d89c28ea5c6620075ad08f5d4ce397ae", kill_on_drop: false }`
[INFO] [stdout] 55d013929dd6857a0abc783e2053e459d89c28ea5c6620075ad08f5d4ce397ae