[INFO] cloning repository https://github.com/nilsso/rust_mud
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilsso/rust_mud" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsso%2Frust_mud", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsso%2Frust_mud'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2fc898f7845e150d944c2e82764ee043bc57bb3
[INFO] checking nilsso/rust_mud against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsso%2Frust_mud" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilsso/rust_mud on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nilsso/rust_mud
[INFO] finished tweaking git repo https://github.com/nilsso/rust_mud
[INFO] tweaked toml for git repo https://github.com/nilsso/rust_mud written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nilsso/rust_mud already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] 106f5c5acce3b4c1bdcbae30084465147859a3f96a0fd68d959c8a008d2e803f
[INFO] running `Command { std: "docker" "start" "-a" "106f5c5acce3b4c1bdcbae30084465147859a3f96a0fd68d959c8a008d2e803f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "106f5c5acce3b4c1bdcbae30084465147859a3f96a0fd68d959c8a008d2e803f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106f5c5acce3b4c1bdcbae30084465147859a3f96a0fd68d959c8a008d2e803f", kill_on_drop: false }`
[INFO] [stdout] 106f5c5acce3b4c1bdcbae30084465147859a3f96a0fd68d959c8a008d2e803f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] c24589904ebdbc41949eedcbdb50db6b4f811b002269859de3e059b524593466
[INFO] running `Command { std: "docker" "start" "-a" "c24589904ebdbc41949eedcbdb50db6b4f811b002269859de3e059b524593466", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling tcod-sys v5.0.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio v0.6.18
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking laminar v0.2.2
[INFO] [stderr]     Checking lipsum v0.6.0
[INFO] [stderr]     Checking rustyline v4.1.0
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]    Compiling getset v0.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking simple_logger v1.2.0
[INFO] [stderr]     Checking tcod v0.14.0
[INFO] [stderr]     Checking scp_rust_rogue v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serialize`
[INFO] [stdout]  --> src/server.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bincode::{serialize, deserialize};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serialize`
[INFO] [stdout]  --> src/server.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use bincode::{serialize, deserialize};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/client.rs:74:45
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 Ok(InnerMessage::NetMessage(data)) => {
[INFO] [stdout]    |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/client.rs:74:45
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 Ok(InnerMessage::NetMessage(data)) => {
[INFO] [stdout]    |                                             ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.81s
[INFO] running `Command { std: "docker" "inspect" "c24589904ebdbc41949eedcbdb50db6b4f811b002269859de3e059b524593466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c24589904ebdbc41949eedcbdb50db6b4f811b002269859de3e059b524593466", kill_on_drop: false }`
[INFO] [stdout] c24589904ebdbc41949eedcbdb50db6b4f811b002269859de3e059b524593466