[INFO] cloning repository https://github.com/AdeAttwood/Ceir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdeAttwood/Ceir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdeAttwood%2FCeir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdeAttwood%2FCeir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30c44893da96cfd92fc3e9866df754744ba5ddf9
[INFO] checking AdeAttwood/Ceir against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdeAttwood%2FCeir" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdeAttwood/Ceir 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/AdeAttwood/Ceir
[INFO] finished tweaking git repo https://github.com/AdeAttwood/Ceir
[INFO] tweaked toml for git repo https://github.com/AdeAttwood/Ceir written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AdeAttwood/Ceir 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 v1.0.175
[INFO] [stderr]   Downloaded serde_derive v1.0.175
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f87cda2f8d6e849a4b8368a98e220924b7b112e0992ef79973d0423cfd318075
[INFO] running `Command { std: "docker" "start" "-a" "f87cda2f8d6e849a4b8368a98e220924b7b112e0992ef79973d0423cfd318075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f87cda2f8d6e849a4b8368a98e220924b7b112e0992ef79973d0423cfd318075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f87cda2f8d6e849a4b8368a98e220924b7b112e0992ef79973d0423cfd318075", kill_on_drop: false }`
[INFO] [stdout] f87cda2f8d6e849a4b8368a98e220924b7b112e0992ef79973d0423cfd318075
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1fa1dd9c60d0defd3e12abfde98832b6d7dd8c9b78607a79017f0ba6b79ed673
[INFO] running `Command { std: "docker" "start" "-a" "1fa1dd9c60d0defd3e12abfde98832b6d7dd8c9b78607a79017f0ba6b79ed673", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]    Compiling serde_derive v1.0.175
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking ceir v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]    --> src/fen.rs:117:24
[INFO] [stdout]     |
[INFO] [stdout] 117 |     use crate::board::{Color, Piece};
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] 118 |     use crate::fen::*;
[INFO] [stdout]     |         ------------- the item `Color` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Piece` is imported redundantly
[INFO] [stdout]    --> src/fen.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |     use crate::board::{Color, Piece};
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] 118 |     use crate::fen::*;
[INFO] [stdout]     |         ------------- the item `Piece` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]    --> src/search.rs:379:46
[INFO] [stdout]     |
[INFO] [stdout] 378 |     use super::*;
[INFO] [stdout]     |         -------- the item `Move` is already imported here
[INFO] [stdout] 379 |     use crate::{bitboards::Square, fen::Fen, moves::Move};
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Color` is imported redundantly
[INFO] [stdout]    --> src/fen.rs:117:24
[INFO] [stdout]     |
[INFO] [stdout] 117 |     use crate::board::{Color, Piece};
[INFO] [stdout]     |                        ^^^^^
[INFO] [stdout] 118 |     use crate::fen::*;
[INFO] [stdout]     |         ------------- the item `Color` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Piece` is imported redundantly
[INFO] [stdout]    --> src/fen.rs:117:31
[INFO] [stdout]     |
[INFO] [stdout] 117 |     use crate::board::{Color, Piece};
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] 118 |     use crate::fen::*;
[INFO] [stdout]     |         ------------- the item `Piece` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Move` is imported redundantly
[INFO] [stdout]    --> src/search.rs:379:46
[INFO] [stdout]     |
[INFO] [stdout] 378 |     use super::*;
[INFO] [stdout]     |         -------- the item `Move` is already imported here
[INFO] [stdout] 379 |     use crate::{bitboards::Square, fen::Fen, moves::Move};
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comment` is never read
[INFO] [stdout]  --> src/pgn/game.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct PgnMove {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     pub comment: Option<String>,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PgnMove` has derived impls for the traits `Debug` and `Clone`, 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `comment` is never read
[INFO] [stdout]  --> src/pgn/game.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct PgnMove {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     pub comment: Option<String>,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PgnMove` has derived impls for the traits `Debug` and `Clone`, 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `hash` and `from_fen_str` are never used
[INFO] [stdout]    --> src/board.rs:136:12
[INFO] [stdout]     |
[INFO] [stdout] 70  | impl Board {
[INFO] [stdout]     | ---------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 136 |     pub fn hash(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     pub fn from_fen_str(fen: &str) -> Result<Self, String> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `nodes` is never read
[INFO] [stdout]   --> src/search.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct SearchNode {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub nodes: i32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SearchNode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `nodes` is never read
[INFO] [stdout]   --> src/search.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct SearchNode {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub nodes: i32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SearchNode` 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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "1fa1dd9c60d0defd3e12abfde98832b6d7dd8c9b78607a79017f0ba6b79ed673", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa1dd9c60d0defd3e12abfde98832b6d7dd8c9b78607a79017f0ba6b79ed673", kill_on_drop: false }`
[INFO] [stdout] 1fa1dd9c60d0defd3e12abfde98832b6d7dd8c9b78607a79017f0ba6b79ed673
[INFO] checking AdeAttwood/Ceir against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdeAttwood%2FCeir" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdeAttwood/Ceir on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AdeAttwood/Ceir
[INFO] finished tweaking git repo https://github.com/AdeAttwood/Ceir
[INFO] tweaked toml for git repo https://github.com/AdeAttwood/Ceir written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/AdeAttwood/Ceir 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92aff988c1e946762e5b5b256932b77609ea96724519b2efba979787afa20f69
[INFO] running `Command { std: "docker" "start" "-a" "92aff988c1e946762e5b5b256932b77609ea96724519b2efba979787afa20f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92aff988c1e946762e5b5b256932b77609ea96724519b2efba979787afa20f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92aff988c1e946762e5b5b256932b77609ea96724519b2efba979787afa20f69", kill_on_drop: false }`
[INFO] [stdout] 92aff988c1e946762e5b5b256932b77609ea96724519b2efba979787afa20f69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac43a1e8720630635297825ae61f4e66b5bbf42b749f27f3ffe168e4a3c65b5e
[INFO] running `Command { std: "docker" "start" "-a" "ac43a1e8720630635297825ae61f4e66b5bbf42b749f27f3ffe168e4a3c65b5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.175
[INFO] [stderr]    Compiling serde_derive v1.0.175
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.175/src/lib_precompiled.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ac43a1e8720630635297825ae61f4e66b5bbf42b749f27f3ffe168e4a3c65b5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac43a1e8720630635297825ae61f4e66b5bbf42b749f27f3ffe168e4a3c65b5e", kill_on_drop: false }`
[INFO] [stdout] ac43a1e8720630635297825ae61f4e66b5bbf42b749f27f3ffe168e4a3c65b5e