[INFO] cloning repository https://github.com/TimJentzsch/stockfish_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TimJentzsch/stockfish_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimJentzsch%2Fstockfish_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimJentzsch%2Fstockfish_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 316632f69b743a445f78e26126747fcafeae9276
[INFO] checking TimJentzsch/stockfish_engine against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimJentzsch%2Fstockfish_engine" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TimJentzsch/stockfish_engine on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TimJentzsch/stockfish_engine
[INFO] finished tweaking git repo https://github.com/TimJentzsch/stockfish_engine
[INFO] tweaked toml for git repo https://github.com/TimJentzsch/stockfish_engine written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TimJentzsch/stockfish_engine 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mucow v0.1.0
[INFO] [stderr]   Downloaded pleco v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fe675cad1d8b5c552b8041fbc421256bf191d207309f80c56c64a6c0fd9d4d7
[INFO] running `Command { std: "docker" "start" "-a" "6fe675cad1d8b5c552b8041fbc421256bf191d207309f80c56c64a6c0fd9d4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe675cad1d8b5c552b8041fbc421256bf191d207309f80c56c64a6c0fd9d4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe675cad1d8b5c552b8041fbc421256bf191d207309f80c56c64a6c0fd9d4d7", kill_on_drop: false }`
[INFO] [stdout] 6fe675cad1d8b5c552b8041fbc421256bf191d207309f80c56c64a6c0fd9d4d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fce9370d434aa52191f2ff248df666bc8e8c8e9c38afc7e5bebf38658ef79f53
[INFO] running `Command { std: "docker" "start" "-a" "fce9370d434aa52191f2ff248df666bc8e8c8e9c38afc7e5bebf38658ef79f53", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking mucow v0.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking pleco v0.5.0
[INFO] [stderr]     Checking stonefish_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `best_line` and `depth` are never read
[INFO] [stdout]   --> src/stonefish/types.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct HashTableEntry {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 8  |     pub evaluation: Evaluation,
[INFO] [stdout] 9  |     pub best_line: Line,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 10 |     pub depth: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[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: fields `best_line` and `depth` are never read
[INFO] [stdout]   --> src/stonefish/types.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct HashTableEntry {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 8  |     pub evaluation: Evaluation,
[INFO] [stdout] 9  |     pub best_line: Line,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 10 |     pub depth: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.97s
[INFO] running `Command { std: "docker" "inspect" "fce9370d434aa52191f2ff248df666bc8e8c8e9c38afc7e5bebf38658ef79f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce9370d434aa52191f2ff248df666bc8e8c8e9c38afc7e5bebf38658ef79f53", kill_on_drop: false }`
[INFO] [stdout] fce9370d434aa52191f2ff248df666bc8e8c8e9c38afc7e5bebf38658ef79f53
[INFO] checking TimJentzsch/stockfish_engine against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTimJentzsch%2Fstockfish_engine" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TimJentzsch/stockfish_engine on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TimJentzsch/stockfish_engine
[INFO] finished tweaking git repo https://github.com/TimJentzsch/stockfish_engine
[INFO] tweaked toml for git repo https://github.com/TimJentzsch/stockfish_engine written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/TimJentzsch/stockfish_engine 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52ecd438d1d52a5be0620a6c0f7282fd3aa24c3c631a0dac262e11580dc853fa
[INFO] running `Command { std: "docker" "start" "-a" "52ecd438d1d52a5be0620a6c0f7282fd3aa24c3c631a0dac262e11580dc853fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ecd438d1d52a5be0620a6c0f7282fd3aa24c3c631a0dac262e11580dc853fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ecd438d1d52a5be0620a6c0f7282fd3aa24c3c631a0dac262e11580dc853fa", kill_on_drop: false }`
[INFO] [stdout] 52ecd438d1d52a5be0620a6c0f7282fd3aa24c3c631a0dac262e11580dc853fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c27b8d4e0476e52be8038e9886e3e2633139f41dbdabac4aeda914840f9c72e
[INFO] running `Command { std: "docker" "start" "-a" "5c27b8d4e0476e52be8038e9886e3e2633139f41dbdabac4aeda914840f9c72e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking mucow v0.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking pleco v0.5.0
[INFO] [stderr]     Checking stonefish_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `best_line` and `depth` are never read
[INFO] [stdout]   --> src/stonefish/types.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct HashTableEntry {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 8  |     pub evaluation: Evaluation,
[INFO] [stdout] 9  |     pub best_line: Line,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 10 |     pub depth: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[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: fields `best_line` and `depth` are never read
[INFO] [stdout]   --> src/stonefish/types.rs:9:9
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct HashTableEntry {
[INFO] [stdout]    |            -------------- fields in this struct
[INFO] [stdout] 8  |     pub evaluation: Evaluation,
[INFO] [stdout] 9  |     pub best_line: Line,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 10 |     pub depth: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.79s
[INFO] running `Command { std: "docker" "inspect" "5c27b8d4e0476e52be8038e9886e3e2633139f41dbdabac4aeda914840f9c72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c27b8d4e0476e52be8038e9886e3e2633139f41dbdabac4aeda914840f9c72e", kill_on_drop: false }`
[INFO] [stdout] 5c27b8d4e0476e52be8038e9886e3e2633139f41dbdabac4aeda914840f9c72e