[INFO] cloning repository https://github.com/benlubas/how-does-rust-work
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/benlubas/how-does-rust-work" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlubas%2Fhow-does-rust-work", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlubas%2Fhow-does-rust-work'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e340a92bb9fc434b2308b90aeb56d9dd7d25495
[INFO] testing benlubas/how-does-rust-work against 1.45.2 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbenlubas%2Fhow-does-rust-work" "/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/benlubas/how-does-rust-work on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/benlubas/how-does-rust-work
[INFO] finished tweaking git repo https://github.com/benlubas/how-does-rust-work
[INFO] tweaked toml for git repo https://github.com/benlubas/how-does-rust-work written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/benlubas/how-does-rust-work already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd701d383c8ae4ce91250048876edcddece193edcfc0ee84076b4c2c6239afb9
[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" "dd701d383c8ae4ce91250048876edcddece193edcfc0ee84076b4c2c6239afb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd701d383c8ae4ce91250048876edcddece193edcfc0ee84076b4c2c6239afb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd701d383c8ae4ce91250048876edcddece193edcfc0ee84076b4c2c6239afb9", kill_on_drop: false }`
[INFO] [stdout] dd701d383c8ae4ce91250048876edcddece193edcfc0ee84076b4c2c6239afb9
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a29c29ae18a8d8f7979d5a1136d221134c974062856c80db8cd8a8f9d899027
[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" "5a29c29ae18a8d8f7979d5a1136d221134c974062856c80db8cd8a8f9d899027", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling how-does-rust-work v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `next_id` is never read
[INFO] [stdout]   --> src/day5_structs.rs:46:3
[INFO] [stdout]    |
[INFO] [stdout] 46 |   next_id += 1;
[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: unused variable: `user2`
[INFO] [stdout]   --> src/day5_structs.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 |   let user2 = User {
[INFO] [stdout]    |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2`
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.04s
[INFO] running `Command { std: "docker" "inspect" "5a29c29ae18a8d8f7979d5a1136d221134c974062856c80db8cd8a8f9d899027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a29c29ae18a8d8f7979d5a1136d221134c974062856c80db8cd8a8f9d899027", kill_on_drop: false }`
[INFO] [stdout] 5a29c29ae18a8d8f7979d5a1136d221134c974062856c80db8cd8a8f9d899027
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--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] e5e947140a0b2947ed478156d8160de5225fb073ddefcc3da4a5ac3128ca899c
[INFO] running `Command { std: "docker" "start" "-a" "e5e947140a0b2947ed478156d8160de5225fb073ddefcc3da4a5ac3128ca899c", kill_on_drop: false }`
[INFO] [stderr]    Compiling how-does-rust-work v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `next_id` is never read
[INFO] [stdout]   --> src/day5_structs.rs:46:3
[INFO] [stdout]    |
[INFO] [stdout] 46 |   next_id += 1;
[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: unused variable: `user2`
[INFO] [stdout]   --> src/day5_structs.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 |   let user2 = User {
[INFO] [stdout]    |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2`
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "e5e947140a0b2947ed478156d8160de5225fb073ddefcc3da4a5ac3128ca899c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e947140a0b2947ed478156d8160de5225fb073ddefcc3da4a5ac3128ca899c", kill_on_drop: false }`
[INFO] [stdout] e5e947140a0b2947ed478156d8160de5225fb073ddefcc3da4a5ac3128ca899c
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", 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] 0288b8a6d11b795c9d39d5bb9b8a61aa59b7d8daa23de75fe9b1d8b80d125ef3
[INFO] running `Command { std: "docker" "start" "-a" "0288b8a6d11b795c9d39d5bb9b8a61aa59b7d8daa23de75fe9b1d8b80d125ef3", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `next_id` is never read
[INFO] [stderr]   --> src/day5_structs.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   next_id += 1;
[INFO] [stderr]    |   ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user2`
[INFO] [stderr]   --> src/day5_structs.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 |   let user2 = User {
[INFO] [stderr]    |       ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/how_does_rust_work-4b97aae70144cfa4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0288b8a6d11b795c9d39d5bb9b8a61aa59b7d8daa23de75fe9b1d8b80d125ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0288b8a6d11b795c9d39d5bb9b8a61aa59b7d8daa23de75fe9b1d8b80d125ef3", kill_on_drop: false }`
[INFO] [stdout] 0288b8a6d11b795c9d39d5bb9b8a61aa59b7d8daa23de75fe9b1d8b80d125ef3