[INFO] fetching crate sacrifice 0.3.0-alpha.3...
[INFO] testing sacrifice-0.3.0-alpha.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate sacrifice 0.3.0-alpha.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate sacrifice 0.3.0-alpha.3
[INFO] finished tweaking crates.io crate sacrifice 0.3.0-alpha.3
[INFO] tweaked toml for crates.io crate sacrifice 0.3.0-alpha.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sacrifice 0.3.0-alpha.3 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sacrifice 0.3.0-alpha.3 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcd0c508948213497b715088f9c0e87934f09b71570510f2983f841e31d60f2c
[INFO] running `Command { std: "docker" "start" "-a" "fcd0c508948213497b715088f9c0e87934f09b71570510f2983f841e31d60f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcd0c508948213497b715088f9c0e87934f09b71570510f2983f841e31d60f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcd0c508948213497b715088f9c0e87934f09b71570510f2983f841e31d60f2c", kill_on_drop: false }`
[INFO] [stdout] fcd0c508948213497b715088f9c0e87934f09b71570510f2983f841e31d60f2c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d052d8337a340756cc509b334e2e592286f21e141e5dfd18cd666ab8d56c21c
[INFO] running `Command { std: "docker" "start" "-a" "0d052d8337a340756cc509b334e2e592286f21e141e5dfd18cd666ab8d56c21c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling circular v0.3.0
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling btoi v0.4.3
[INFO] [stderr]    Compiling shakmaty v0.26.0
[INFO] [stderr]    Compiling pgn-reader v0.25.0
[INFO] [stderr]    Compiling sacrifice v0.3.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/example.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut game = sacrifice::read_pgn(
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_node`
[INFO] [stdout]   --> src/bin/example.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let new_node = root.new_variation(queens_pawn); // 1. d4 node
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.27s
[INFO] running `Command { std: "docker" "inspect" "0d052d8337a340756cc509b334e2e592286f21e141e5dfd18cd666ab8d56c21c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d052d8337a340756cc509b334e2e592286f21e141e5dfd18cd666ab8d56c21c", kill_on_drop: false }`
[INFO] [stdout] 0d052d8337a340756cc509b334e2e592286f21e141e5dfd18cd666ab8d56c21c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ce907f8386f27b0c3fb8bbf02aa1efde19551980a91e994e24d6b9eca4b3e59
[INFO] running `Command { std: "docker" "start" "-a" "0ce907f8386f27b0c3fb8bbf02aa1efde19551980a91e994e24d6b9eca4b3e59", kill_on_drop: false }`
[INFO] [stderr]    Compiling sacrifice v0.3.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/example.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut game = sacrifice::read_pgn(
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_node`
[INFO] [stdout]   --> src/bin/example.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let new_node = root.new_variation(queens_pawn); // 1. d4 node
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "0ce907f8386f27b0c3fb8bbf02aa1efde19551980a91e994e24d6b9eca4b3e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce907f8386f27b0c3fb8bbf02aa1efde19551980a91e994e24d6b9eca4b3e59", kill_on_drop: false }`
[INFO] [stdout] 0ce907f8386f27b0c3fb8bbf02aa1efde19551980a91e994e24d6b9eca4b3e59
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1af8d99fc8b87a94372fa45138cd3490c5c417e2d8d24ea292c63b45a5b72d90
[INFO] running `Command { std: "docker" "start" "-a" "1af8d99fc8b87a94372fa45138cd3490c5c417e2d8d24ea292c63b45a5b72d90", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/bin/example.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let mut game = sacrifice::read_pgn(
[INFO] [stderr]   |         ----^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_node`
[INFO] [stderr]   --> src/bin/example.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let new_node = root.new_variation(queens_pawn); // 1. d4 node
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `sacrifice` (bin "example" test) generated 2 warnings (run `cargo fix --bin "example" -p sacrifice --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sacrifice-1990fb61439ba5c6)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::pgn ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/example.rs (/opt/rustwide/target/debug/deps/example-4a9a63e97029bcf0)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sacrifice
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/game/node.rs - game::node::Node::starting_comment (line 152) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::prev_move (line 116) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::mainline (line 300) ... ok
[INFO] [stdout] test src/game/mod.rs - game::Game::root (line 28) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::parent (line 90) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::moves (line 480) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::set_comment (line 259) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::remove_node (line 537) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::comment (line 236) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::other_variations (line 319) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::set_starting_comment (line 179) ... ok
[INFO] [stdout] test src/lib.rs - read_pgn (line 20) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::position (line 512) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::new_variation (line 374) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::promote_variation (line 424) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::siblings (line 344) ... ok
[INFO] [stdout] test src/game/node.rs - game::node::Node::nags (line 205) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1af8d99fc8b87a94372fa45138cd3490c5c417e2d8d24ea292c63b45a5b72d90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af8d99fc8b87a94372fa45138cd3490c5c417e2d8d24ea292c63b45a5b72d90", kill_on_drop: false }`
[INFO] [stdout] 1af8d99fc8b87a94372fa45138cd3490c5c417e2d8d24ea292c63b45a5b72d90
