[INFO] cloning repository https://github.com/jinlow/namedrawer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jinlow/namedrawer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjinlow%2Fnamedrawer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjinlow%2Fnamedrawer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b8324dcbe64315a36993e7cbde38a395b5c2c28
[INFO] checking jinlow/namedrawer against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjinlow%2Fnamedrawer" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jinlow/namedrawer on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jinlow/namedrawer
[INFO] finished tweaking git repo https://github.com/jinlow/namedrawer
[INFO] tweaked toml for git repo https://github.com/jinlow/namedrawer written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jinlow/namedrawer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdb3b4d608cf2463b6367bfbcff0507b483dc94945b30ac802b80de43f03afe3
[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" "bdb3b4d608cf2463b6367bfbcff0507b483dc94945b30ac802b80de43f03afe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdb3b4d608cf2463b6367bfbcff0507b483dc94945b30ac802b80de43f03afe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb3b4d608cf2463b6367bfbcff0507b483dc94945b30ac802b80de43f03afe3", kill_on_drop: false }`
[INFO] [stdout] bdb3b4d608cf2463b6367bfbcff0507b483dc94945b30ac802b80de43f03afe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] f857930e424d61bbb41964c2a77dd6c416f6ed7bd57d1bdd6e30a6f04202d5f8
[INFO] running `Command { std: "docker" "start" "-a" "f857930e424d61bbb41964c2a77dd6c416f6ed7bd57d1bdd6e30a6f04202d5f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking namedraw v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from_vec`
[INFO] [stdout]   --> src/namedrawing.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn from_vec(names: Vec<Vec<String>>) -> NameDrawing {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_vec`
[INFO] [stdout]   --> src/namedrawing.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn from_vec(names: Vec<Vec<String>>) -> NameDrawing {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.34s
[INFO] running `Command { std: "docker" "inspect" "f857930e424d61bbb41964c2a77dd6c416f6ed7bd57d1bdd6e30a6f04202d5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f857930e424d61bbb41964c2a77dd6c416f6ed7bd57d1bdd6e30a6f04202d5f8", kill_on_drop: false }`
[INFO] [stdout] f857930e424d61bbb41964c2a77dd6c416f6ed7bd57d1bdd6e30a6f04202d5f8