[INFO] fetching crate kifuwarabe_tic_tac_toe 0.2.4...
[INFO] checking kifuwarabe_tic_tac_toe-0.2.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate kifuwarabe_tic_tac_toe 0.2.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate kifuwarabe_tic_tac_toe 0.2.4
[INFO] finished tweaking crates.io crate kifuwarabe_tic_tac_toe 0.2.4
[INFO] tweaked toml for crates.io crate kifuwarabe_tic_tac_toe 0.2.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kifuwarabe_tic_tac_toe 0.2.4 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kifuwarabe_tic_tac_toe 0.2.4 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e3fb571b8546837db5dee7c03d573b528df8b63fcaa37b2d65f49beae436a03
[INFO] running `Command { std: "docker" "start" "-a" "8e3fb571b8546837db5dee7c03d573b528df8b63fcaa37b2d65f49beae436a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e3fb571b8546837db5dee7c03d573b528df8b63fcaa37b2d65f49beae436a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e3fb571b8546837db5dee7c03d573b528df8b63fcaa37b2d65f49beae436a03", kill_on_drop: false }`
[INFO] [stdout] 8e3fb571b8546837db5dee7c03d573b528df8b63fcaa37b2d65f49beae436a03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71470dc5413c11e1f9a43fe205cb38294c3878e36a82d6f00c4487fc03226b26
[INFO] running `Command { std: "docker" "start" "-a" "71470dc5413c11e1f9a43fe205cb38294c3878e36a82d6f00c4487fc03226b26", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking casual_logger v0.6.5
[INFO] [stderr]     Checking kifuwarabe_tic_tac_toe v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/command_line_seek.rs:63:34
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let line: String = match line.trim().parse() {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/command_line_seek.rs:63:34
[INFO] [stdout]    |
[INFO] [stdout] 63 |         let line: String = match line.trim().parse() {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/command_line_seek.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 65 |               Err(e) => panic!(Log::print_fatal(&format!(
[INFO] [stdout]    |  ______________________________^
[INFO] [stdout] 66 | |                 "(Err.38)  Failed to parse. / {}",
[INFO] [stdout] 67 | |                 e
[INFO] [stdout] 68 | |             ))),
[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/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Err(e) => panic!("{}", Log::print_fatal(&format!(
[INFO] [stdout]    |                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/command_line_seek.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 65 |               Err(e) => panic!(Log::print_fatal(&format!(
[INFO] [stdout]    |  ______________________________^
[INFO] [stdout] 66 | |                 "(Err.38)  Failed to parse. / {}",
[INFO] [stdout] 67 | |                 e
[INFO] [stdout] 68 | |             ))),
[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/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]    |
[INFO] [stdout] 65 |             Err(e) => panic!("{}", Log::print_fatal(&format!(
[INFO] [stdout]    |                              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kifuwarabe_tic_tac_toe` (lib test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `kifuwarabe_tic_tac_toe` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "71470dc5413c11e1f9a43fe205cb38294c3878e36a82d6f00c4487fc03226b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71470dc5413c11e1f9a43fe205cb38294c3878e36a82d6f00c4487fc03226b26", kill_on_drop: false }`
[INFO] [stdout] 71470dc5413c11e1f9a43fe205cb38294c3878e36a82d6f00c4487fc03226b26
