[INFO] cloning repository https://github.com/liuyu18/rust_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liuyu18/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliuyu18%2Frust_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliuyu18%2Frust_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a4da1c0357df1d1aee4683227b2f834f8e606c8
[INFO] checking liuyu18/rust_practice against master#eb10639928a2781cf0a12440007fbcc1e3a6888f for pr-127827-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliuyu18%2Frust_practice" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liuyu18/rust_practice on toolchain eb10639928a2781cf0a12440007fbcc1e3a6888f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/liuyu18/rust_practice
[INFO] finished tweaking git repo https://github.com/liuyu18/rust_practice
[INFO] tweaked toml for git repo https://github.com/liuyu18/rust_practice written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/liuyu18/rust_practice 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" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.118
[INFO] [stderr]   Downloaded tinyvec v1.6.1
[INFO] [stderr]   Downloaded cc v1.0.101
[INFO] [stderr]   Downloaded hyper v0.14.29
[INFO] [stderr]   Downloaded object v0.36.0
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 600130a8d5be0960bc9db387af974c3d0354077ea04318831687a65c4d391db5
[INFO] running `Command { std: "docker" "start" "-a" "600130a8d5be0960bc9db387af974c3d0354077ea04318831687a65c4d391db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "600130a8d5be0960bc9db387af974c3d0354077ea04318831687a65c4d391db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "600130a8d5be0960bc9db387af974c3d0354077ea04318831687a65c4d391db5", kill_on_drop: false }`
[INFO] [stdout] 600130a8d5be0960bc9db387af974c3d0354077ea04318831687a65c4d391db5
[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=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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+eb10639928a2781cf0a12440007fbcc1e3a6888f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14f293b5c2c2ceeeccd1dac2dfbb1a6bfc7fe79132f6340bbe6eca0570fceb1a
[INFO] running `Command { std: "docker" "start" "-a" "14f293b5c2c2ceeeccd1dac2dfbb1a6bfc7fe79132f6340bbe6eca0570fceb1a", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec v1.6.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v1.38.0
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling serde_json v1.0.118
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking thiserror v1.0.61
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking tungstenite v0.21.0
[INFO] [stderr]     Checking multer v2.1.0
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-tungstenite v0.21.0
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.29
[INFO] [stderr]     Checking warp v0.3.7
[INFO] [stderr]     Checking ms_training v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.09s
[INFO] running `Command { std: "docker" "inspect" "14f293b5c2c2ceeeccd1dac2dfbb1a6bfc7fe79132f6340bbe6eca0570fceb1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f293b5c2c2ceeeccd1dac2dfbb1a6bfc7fe79132f6340bbe6eca0570fceb1a", kill_on_drop: false }`
[INFO] [stdout] 14f293b5c2c2ceeeccd1dac2dfbb1a6bfc7fe79132f6340bbe6eca0570fceb1a