[INFO] cloning repository https://github.com/y-yu/rust-type-level-programming-introduction
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/y-yu/rust-type-level-programming-introduction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-yu%2Frust-type-level-programming-introduction", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-yu%2Frust-type-level-programming-introduction'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 140b1821381e586b3b27e6b138eecc6b3d4e08ba
[INFO] checking y-yu/rust-type-level-programming-introduction against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-yu%2Frust-type-level-programming-introduction" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/y-yu/rust-type-level-programming-introduction
[INFO] finished tweaking git repo https://github.com/y-yu/rust-type-level-programming-introduction
[INFO] tweaked toml for git repo https://github.com/y-yu/rust-type-level-programming-introduction written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/y-yu/rust-type-level-programming-introduction on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/y-yu/rust-type-level-programming-introduction 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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking y-yu/rust-type-level-programming-introduction against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-yu%2Frust-type-level-programming-introduction" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/y-yu/rust-type-level-programming-introduction
[INFO] finished tweaking git repo https://github.com/y-yu/rust-type-level-programming-introduction
[INFO] tweaked toml for git repo https://github.com/y-yu/rust-type-level-programming-introduction written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/y-yu/rust-type-level-programming-introduction on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/y-yu/rust-type-level-programming-introduction 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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78d434aefd5164acb9bdf41d7f0c188de4a526a5687e0c04ac6d1b05715e14e1
[INFO] running `Command { std: "docker" "start" "-a" "78d434aefd5164acb9bdf41d7f0c188de4a526a5687e0c04ac6d1b05715e14e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78d434aefd5164acb9bdf41d7f0c188de4a526a5687e0c04ac6d1b05715e14e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d434aefd5164acb9bdf41d7f0c188de4a526a5687e0c04ac6d1b05715e14e1", kill_on_drop: false }`
[INFO] [stdout] 78d434aefd5164acb9bdf41d7f0c188de4a526a5687e0c04ac6d1b05715e14e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab489e6129afc25a30eca28e9d0ac0ab980b7e6cc32d950da0c12abbdd97e2a2
[INFO] running `Command { std: "docker" "start" "-a" "ab489e6129afc25a30eca28e9d0ac0ab980b7e6cc32d950da0c12abbdd97e2a2", kill_on_drop: false }`
[INFO] [stderr]     Checking type-level-programming-introduction v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `TBool` is never used
[INFO] [stdout]  --> src/bool.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait TBool: Default {
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TTrue` is never constructed
[INFO] [stdout]  --> src/bool.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct TTrue;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TFalse` is never constructed
[INFO] [stdout]  --> src/bool.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct TFalse;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TNand` is never used
[INFO] [stdout]   --> src/bool.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | trait TNand<RHS: TBool> {
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TOr` is never used
[INFO] [stdout]   --> src/bool.rs:47:11
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub trait TOr<RHS: TBool> {
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TAnd` is never used
[INFO] [stdout]   --> src/bool.rs:67:11
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub trait TAnd<RHS: TBool>: TBool {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HList` is never used
[INFO] [stdout]  --> src/hlist.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait HList {}
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HNil` is never constructed
[INFO] [stdout]  --> src/hlist.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct HNil;
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HCons` is never constructed
[INFO] [stdout]  --> src/hlist.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct HCons<H, L: HList>(H, L);
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TContains` is never used
[INFO] [stdout]   --> src/hlist.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub trait TContains<N: TNat> {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TNat` is never used
[INFO] [stdout]  --> src/nat.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait TNat: Default {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TZero` is never constructed
[INFO] [stdout]  --> src/nat.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct TZero;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TSucc` is never constructed
[INFO] [stdout]   --> src/nat.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct TSucc<N: TNat>(N);
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TOne` is never used
[INFO] [stdout]   --> src/nat.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub type TOne = TSucc<TZero>;
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TTwo` is never used
[INFO] [stdout]   --> src/nat.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub type TTwo = TSucc<TOne>;
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TThree` is never used
[INFO] [stdout]   --> src/nat.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub type TThree = TSucc<TTwo>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TFour` is never used
[INFO] [stdout]   --> src/nat.rs:33:10
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub type TFour = TSucc<TThree>;
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TFive` is never used
[INFO] [stdout]   --> src/nat.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub type TFive = TSucc<TFour>;
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TSix` is never used
[INFO] [stdout]   --> src/nat.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub type TSix = TSucc<TFive>;
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TSeven` is never used
[INFO] [stdout]   --> src/nat.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub type TSeven = TSucc<TSix>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `TEight` is never used
[INFO] [stdout]   --> src/nat.rs:37:10
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub type TEight = TSucc<TSeven>;
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TAdd` is never used
[INFO] [stdout]   --> src/nat.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait TAdd<RHS: TNat>: TNat {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TSub` is never used
[INFO] [stdout]   --> src/nat.rs:65:11
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub trait TSub<RHS: TNat>: TNat {
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `TEqual` is never used
[INFO] [stdout]   --> src/nat.rs:95:11
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub trait TEqual<RHS: TNat> {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "ab489e6129afc25a30eca28e9d0ac0ab980b7e6cc32d950da0c12abbdd97e2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab489e6129afc25a30eca28e9d0ac0ab980b7e6cc32d950da0c12abbdd97e2a2", kill_on_drop: false }`
[INFO] [stdout] ab489e6129afc25a30eca28e9d0ac0ab980b7e6cc32d950da0c12abbdd97e2a2