[INFO] fetching crate sugiura-hiromichi_tp 0.2.0...
[INFO] testing sugiura-hiromichi_tp-0.2.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate sugiura-hiromichi_tp 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate sugiura-hiromichi_tp 0.2.0
[INFO] finished tweaking crates.io crate sugiura-hiromichi_tp 0.2.0
[INFO] tweaked toml for crates.io crate sugiura-hiromichi_tp 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sugiura-hiromichi_tp 0.2.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sugiura-hiromichi_tp 0.2.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sugiura-hiromichi_mylibrary v1.1.2
[INFO] [stderr]   Downloaded clap_derive v3.2.18
[INFO] [stderr]   Downloaded os_str_bytes v6.4.1
[INFO] [stderr]   Downloaded once_cell v1.17.0
[INFO] [stderr]   Downloaded clap v3.2.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a20ee648393f20e49fd788470862608b1db61f9a878c329b7c1b7d60618fe0fe
[INFO] running `Command { std: "docker" "start" "-a" "a20ee648393f20e49fd788470862608b1db61f9a878c329b7c1b7d60618fe0fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a20ee648393f20e49fd788470862608b1db61f9a878c329b7c1b7d60618fe0fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20ee648393f20e49fd788470862608b1db61f9a878c329b7c1b7d60618fe0fe", kill_on_drop: false }`
[INFO] [stdout] a20ee648393f20e49fd788470862608b1db61f9a878c329b7c1b7d60618fe0fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 208bc9b016d5a56ed5bdffc911a208b21ae1e5da0dc1f298f3cc2b1e96059c3b
[INFO] running `Command { std: "docker" "start" "-a" "208bc9b016d5a56ed5bdffc911a208b21ae1e5da0dc1f298f3cc2b1e96059c3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling once_cell v1.17.0
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling sugiura-hiromichi_mylibrary v1.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]    Compiling clap v3.2.23
[INFO] [stderr]    Compiling sugiura-hiromichi_tp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(if_let_guard)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sugiura-hiromichi_tp` (bin "sugiura-hiromichi_tp") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "208bc9b016d5a56ed5bdffc911a208b21ae1e5da0dc1f298f3cc2b1e96059c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "208bc9b016d5a56ed5bdffc911a208b21ae1e5da0dc1f298f3cc2b1e96059c3b", kill_on_drop: false }`
[INFO] [stdout] 208bc9b016d5a56ed5bdffc911a208b21ae1e5da0dc1f298f3cc2b1e96059c3b