[INFO] fetching crate gameboard 0.1.0...
[INFO] checking gameboard-0.1.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate gameboard 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gameboard 0.1.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gameboard 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate gameboard 0.1.0
[INFO] tweaked toml for crates.io crate gameboard 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34e0bfbc50e0541df66deca3bc4f2897061899c55e78fbe9c44083a10050b098
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34e0bfbc50e0541df66deca3bc4f2897061899c55e78fbe9c44083a10050b098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34e0bfbc50e0541df66deca3bc4f2897061899c55e78fbe9c44083a10050b098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34e0bfbc50e0541df66deca3bc4f2897061899c55e78fbe9c44083a10050b098", kill_on_drop: false }`
[INFO] [stdout] 34e0bfbc50e0541df66deca3bc4f2897061899c55e78fbe9c44083a10050b098
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b9245e0cca00b6ed813a3c7f45e285c1ae32eced864f9f5a5bae6b158db8a42a
[INFO] running `Command { std: "docker" "start" "-a" "b9245e0cca00b6ed813a3c7f45e285c1ae32eced864f9f5a5bae6b158db8a42a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking gameboard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cell.rs:101:28
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     panic!(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     panic!("{}", RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     std::panic::panic_any(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cell.rs:119:28
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     panic!(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     panic!("{}", RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     std::panic::panic_any(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cell.rs:142:28
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     panic!(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     panic!("{}", RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     std::panic::panic_any(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cell.rs:101:28
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     panic!(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     panic!("{}", RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 101 |                     std::panic::panic_any(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cell.rs:119:28
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     panic!(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     panic!("{}", RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 119 |                     std::panic::panic_any(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/cell.rs:142:28
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     panic!(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     panic!("{}", RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 142 |                     std::panic::panic_any(RESOURCE_TABLE_ERR_MSG);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.27s
[INFO] running `Command { std: "docker" "inspect" "b9245e0cca00b6ed813a3c7f45e285c1ae32eced864f9f5a5bae6b158db8a42a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9245e0cca00b6ed813a3c7f45e285c1ae32eced864f9f5a5bae6b158db8a42a", kill_on_drop: false }`
[INFO] [stdout] b9245e0cca00b6ed813a3c7f45e285c1ae32eced864f9f5a5bae6b158db8a42a