[INFO] cloning repository https://github.com/calebx/potato-quant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/calebx/potato-quant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalebx%2Fpotato-quant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalebx%2Fpotato-quant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06facb692bd10650259e184f230ba5c0bd5470a2
[INFO] checking calebx/potato-quant against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcalebx%2Fpotato-quant" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/calebx/potato-quant on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/calebx/potato-quant
[INFO] finished tweaking git repo https://github.com/calebx/potato-quant
[INFO] tweaked toml for git repo https://github.com/calebx/potato-quant written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/calebx/potato-quant already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.104
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded dirs-sys v0.3.4
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32d70c29b1d754f3a9bbe2918659fac1229c20661b888c63b4e0bf6e16973896
[INFO] running `Command { std: "docker" "start" "-a" "32d70c29b1d754f3a9bbe2918659fac1229c20661b888c63b4e0bf6e16973896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32d70c29b1d754f3a9bbe2918659fac1229c20661b888c63b4e0bf6e16973896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32d70c29b1d754f3a9bbe2918659fac1229c20661b888c63b4e0bf6e16973896", kill_on_drop: false }`
[INFO] [stdout] 32d70c29b1d754f3a9bbe2918659fac1229c20661b888c63b4e0bf6e16973896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d9dd5c423dfc55c861deb93d654037a60190e0b0352f92f5e831cf3af3e3ba6
[INFO] running `Command { std: "docker" "start" "-a" "7d9dd5c423dfc55c861deb93d654037a60190e0b0352f92f5e831cf3af3e3ba6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking simplelog v0.7.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking potato v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `log` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log;
[INFO] [stdout]   |     ^^^ the item `log` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log` is imported redundantly
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log;
[INFO] [stdout]   |     ^^^ the item `log` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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] [stdout] warning: the item `lazy_static` is imported redundantly
[INFO] [stdout]  --> src/boot/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate lazy_static;
[INFO] [stdout]   | ------------------------- the item `lazy_static` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]  --> src/boot/config.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use toml;
[INFO] [stdout]   |     ^^^^ the item `toml` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `lazy_static` is imported redundantly
[INFO] [stdout]  --> src/boot/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate lazy_static;
[INFO] [stdout]   | ------------------------- the item `lazy_static` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log` is imported redundantly
[INFO] [stdout]  --> src/boot/logger.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log;
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate log;
[INFO] [stdout]   | ----------------- the item `log` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `simplelog` is imported redundantly
[INFO] [stdout]  --> src/boot/logger.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use simplelog;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate simplelog;
[INFO] [stdout]   | ----------------------- the item `simplelog` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `toml` is imported redundantly
[INFO] [stdout]  --> src/boot/config.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use toml;
[INFO] [stdout]   |     ^^^^ the item `toml` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `log` is imported redundantly
[INFO] [stdout]  --> src/boot/logger.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log;
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate log;
[INFO] [stdout]   | ----------------- the item `log` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `simplelog` is imported redundantly
[INFO] [stdout]  --> src/boot/logger.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use simplelog;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate simplelog;
[INFO] [stdout]   | ----------------------- the item `simplelog` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `debug` and `redis_path` are never read
[INFO] [stdout]   --> src/boot/config.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 13 |     #[serde(default = "default_config_debug")]
[INFO] [stdout] 14 |     debug: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     redis_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `debug` and `redis_path` are never read
[INFO] [stdout]   --> src/boot/config.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Config {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 13 |     #[serde(default = "default_config_debug")]
[INFO] [stdout] 14 |     debug: bool,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     redis_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.30s
[INFO] running `Command { std: "docker" "inspect" "7d9dd5c423dfc55c861deb93d654037a60190e0b0352f92f5e831cf3af3e3ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d9dd5c423dfc55c861deb93d654037a60190e0b0352f92f5e831cf3af3e3ba6", kill_on_drop: false }`
[INFO] [stdout] 7d9dd5c423dfc55c861deb93d654037a60190e0b0352f92f5e831cf3af3e3ba6