[INFO] fetching crate matszpk-sokoban 0.1.1...
[INFO] checking matszpk-sokoban-0.1.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate matszpk-sokoban 0.1.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate matszpk-sokoban 0.1.1 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 crates.io crate matszpk-sokoban 0.1.1
[INFO] finished tweaking crates.io crate matszpk-sokoban 0.1.1
[INFO] tweaked toml for crates.io crate matszpk-sokoban 0.1.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate matszpk-sokoban 0.1.1 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 int-enum-impl v0.4.0
[INFO] [stderr]   Downloaded int-enum v0.4.0
[INFO] [stderr]   Downloaded libc v0.2.117
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 844ab3168c71d32cc9d62dfcbe332c2e1200b94d12cd157ad0a9a011948a6ecc
[INFO] running `Command { std: "docker" "start" "-a" "844ab3168c71d32cc9d62dfcbe332c2e1200b94d12cd157ad0a9a011948a6ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "844ab3168c71d32cc9d62dfcbe332c2e1200b94d12cd157ad0a9a011948a6ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "844ab3168c71d32cc9d62dfcbe332c2e1200b94d12cd157ad0a9a011948a6ecc", kill_on_drop: false }`
[INFO] [stdout] 844ab3168c71d32cc9d62dfcbe332c2e1200b94d12cd157ad0a9a011948a6ecc
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e25486742da572b448a3dc639d01a3916b63318461051eb32852befe1a7bca2
[INFO] running `Command { std: "docker" "start" "-a" "0e25486742da572b448a3dc639d01a3916b63318461051eb32852befe1a7bca2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling int-enum-impl v0.4.0
[INFO] [stderr]     Checking int-enum v0.4.0
[INFO] [stderr]     Checking matszpk-sokoban v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `GameResult` is imported redundantly
[INFO] [stdout]   --> src/term_game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::defs::*;
[INFO] [stdout]    |     -------------- the item `GameResult` is already imported here
[INFO] [stdout] 31 |
[INFO] [stdout] 32 | use crate::GameResult;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `GameResult` is imported redundantly
[INFO] [stdout]   --> src/term_game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::defs::*;
[INFO] [stdout]    |     -------------- the item `GameResult` is already imported here
[INFO] [stdout] 31 |
[INFO] [stdout] 32 | use crate::GameResult;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "0e25486742da572b448a3dc639d01a3916b63318461051eb32852befe1a7bca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e25486742da572b448a3dc639d01a3916b63318461051eb32852befe1a7bca2", kill_on_drop: false }`
[INFO] [stdout] 0e25486742da572b448a3dc639d01a3916b63318461051eb32852befe1a7bca2
[INFO] checking matszpk-sokoban-0.1.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate matszpk-sokoban 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate matszpk-sokoban 0.1.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matszpk-sokoban 0.1.1
[INFO] finished tweaking crates.io crate matszpk-sokoban 0.1.1
[INFO] tweaked toml for crates.io crate matszpk-sokoban 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate matszpk-sokoban 0.1.1 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 679a77f1074e43e36ce219f8dd2be024951cf55170671a7cba1db9f9e6a60f75
[INFO] running `Command { std: "docker" "start" "-a" "679a77f1074e43e36ce219f8dd2be024951cf55170671a7cba1db9f9e6a60f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "679a77f1074e43e36ce219f8dd2be024951cf55170671a7cba1db9f9e6a60f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679a77f1074e43e36ce219f8dd2be024951cf55170671a7cba1db9f9e6a60f75", kill_on_drop: false }`
[INFO] [stdout] 679a77f1074e43e36ce219f8dd2be024951cf55170671a7cba1db9f9e6a60f75
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 888d4788018156e67e0b534c941cc2ba5efea251a843b6ba45b8c8e4a9da239a
[INFO] running `Command { std: "docker" "start" "-a" "888d4788018156e67e0b534c941cc2ba5efea251a843b6ba45b8c8e4a9da239a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling int-enum-impl v0.4.0
[INFO] [stderr]     Checking int-enum v0.4.0
[INFO] [stderr]     Checking matszpk-sokoban v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `GameResult` is imported redundantly
[INFO] [stdout]   --> src/term_game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::defs::*;
[INFO] [stdout]    |     -------------- the item `GameResult` is already imported here
[INFO] [stdout] 31 |
[INFO] [stdout] 32 | use crate::GameResult;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `GameResult` is imported redundantly
[INFO] [stdout]   --> src/term_game.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::defs::*;
[INFO] [stdout]    |     -------------- the item `GameResult` is already imported here
[INFO] [stdout] 31 |
[INFO] [stdout] 32 | use crate::GameResult;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: quick-xml v0.22.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "888d4788018156e67e0b534c941cc2ba5efea251a843b6ba45b8c8e4a9da239a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "888d4788018156e67e0b534c941cc2ba5efea251a843b6ba45b8c8e4a9da239a", kill_on_drop: false }`
[INFO] [stdout] 888d4788018156e67e0b534c941cc2ba5efea251a843b6ba45b8c8e4a9da239a