[INFO] cloning repository https://github.com/justinnoah/rtracker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justinnoah/rtracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinnoah%2Frtracker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinnoah%2Frtracker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eda2e86b67bfca14a1bc2384bdf59739059fc8fa
[INFO] checking justinnoah/rtracker against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustinnoah%2Frtracker" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/justinnoah/rtracker on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/justinnoah/rtracker
[INFO] finished tweaking git repo https://github.com/justinnoah/rtracker
[INFO] tweaked toml for git repo https://github.com/justinnoah/rtracker written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/justinnoah/rtracker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scheduled-thread-pool v0.2.1
[INFO] [stderr]   Downloaded r2d2 v0.8.5
[INFO] [stderr]   Downloaded multimap v0.8.0
[INFO] [stderr]   Downloaded termion v1.5.3
[INFO] [stderr]   Downloaded serde v1.0.94
[INFO] [stderr]   Downloaded spin v0.5.0
[INFO] [stderr]   Downloaded cc v1.0.37
[INFO] [stderr]   Downloaded serde_derive v1.0.94
[INFO] [stderr]   Downloaded libsqlite3-sys v0.17.1
[INFO] [stderr]   Downloaded rust-ini v0.14.0
[INFO] [stderr]   Downloaded rand_chacha v0.2.0
[INFO] [stderr]   Downloaded r2d2_sqlite v0.14.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.8
[INFO] [stderr]   Downloaded syn v0.15.39
[INFO] [stderr]   Downloaded getrandom v0.1.6
[INFO] [stderr]   Downloaded regex v1.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d0e38168f0b6ffb68dcbc59055d380baed708e12a23e3d8f1cc5e1121a3c8fa
[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" "0d0e38168f0b6ffb68dcbc59055d380baed708e12a23e3d8f1cc5e1121a3c8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d0e38168f0b6ffb68dcbc59055d380baed708e12a23e3d8f1cc5e1121a3c8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d0e38168f0b6ffb68dcbc59055d380baed708e12a23e3d8f1cc5e1121a3c8fa", kill_on_drop: false }`
[INFO] [stdout] 0d0e38168f0b6ffb68dcbc59055d380baed708e12a23e3d8f1cc5e1121a3c8fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d57eb1afc864dd06c8f1a8f2c4bfd244dae5022f7f4a7f2c07582eb6091bf75
[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" "3d57eb1afc864dd06c8f1a8f2c4bfd244dae5022f7f4a7f2c07582eb6091bf75", kill_on_drop: false }`
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking utf8-ranges v1.0.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking termcolor v1.0.5
[INFO] [stderr]     Checking strsim v0.9.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking parking_lot_core v0.5.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking parking_lot v0.8.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.1
[INFO] [stderr]     Checking r2d2 v0.8.5
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking multimap v0.8.0
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking rust-ini v0.14.0
[INFO] [stderr]     Checking rusqlite v0.21.0
[INFO] [stderr]     Checking r2d2_sqlite v0.14.0
[INFO] [stderr]     Checking rtracker v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `ip` is never read
[INFO] [stdout]    --> src/handler.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let mut ip = String::new();
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `ip` is never read
[INFO] [stdout]    --> src/handler.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let mut ip = String::new();
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.51s
[INFO] running `Command { std: "docker" "inspect" "3d57eb1afc864dd06c8f1a8f2c4bfd244dae5022f7f4a7f2c07582eb6091bf75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d57eb1afc864dd06c8f1a8f2c4bfd244dae5022f7f4a7f2c07582eb6091bf75", kill_on_drop: false }`
[INFO] [stdout] 3d57eb1afc864dd06c8f1a8f2c4bfd244dae5022f7f4a7f2c07582eb6091bf75