[INFO] fetching crate flour 2.0.0...
[INFO] checking flour-2.0.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate flour 2.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate flour 2.0.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flour 2.0.0
[INFO] finished tweaking crates.io crate flour 2.0.0
[INFO] tweaked toml for crates.io crate flour 2.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate flour 2.0.0 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded json_comments v0.2.1
[INFO] [stderr]   Downloaded bytestream v0.4.1
[INFO] [stderr]   Downloaded serde-semver-derive v0.1.1
[INFO] [stderr]   Downloaded serde-semver v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84257f16c0c534db8d4a4ec6f1da94a3c322301837717ceebd80da75d4f0a818
[INFO] running `Command { std: "docker" "start" "-a" "84257f16c0c534db8d4a4ec6f1da94a3c322301837717ceebd80da75d4f0a818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84257f16c0c534db8d4a4ec6f1da94a3c322301837717ceebd80da75d4f0a818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84257f16c0c534db8d4a4ec6f1da94a3c322301837717ceebd80da75d4f0a818", kill_on_drop: false }`
[INFO] [stdout] 84257f16c0c534db8d4a4ec6f1da94a3c322301837717ceebd80da75d4f0a818
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db47938a6fa0dffdcb542316d17619d10ff9ba7437761e9728f4055db8cebdad
[INFO] running `Command { std: "docker" "start" "-a" "db47938a6fa0dffdcb542316d17619d10ff9ba7437761e9728f4055db8cebdad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking json_comments v0.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytestream v0.4.1
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling serde-semver-derive v0.1.1
[INFO] [stderr]     Checking serde-semver v0.2.1
[INFO] [stderr]     Checking flour v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.59s
[INFO] running `Command { std: "docker" "inspect" "db47938a6fa0dffdcb542316d17619d10ff9ba7437761e9728f4055db8cebdad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db47938a6fa0dffdcb542316d17619d10ff9ba7437761e9728f4055db8cebdad", kill_on_drop: false }`
[INFO] [stdout] db47938a6fa0dffdcb542316d17619d10ff9ba7437761e9728f4055db8cebdad
[INFO] checking flour-2.0.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate flour 2.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate flour 2.0.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flour 2.0.0
[INFO] finished tweaking crates.io crate flour 2.0.0
[INFO] tweaked toml for crates.io crate flour 2.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate flour 2.0.0 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 327184a109d90359821aa7e9fead6182afb38f893eb1e621ffd7223acb6f1449
[INFO] running `Command { std: "docker" "start" "-a" "327184a109d90359821aa7e9fead6182afb38f893eb1e621ffd7223acb6f1449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "327184a109d90359821aa7e9fead6182afb38f893eb1e621ffd7223acb6f1449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327184a109d90359821aa7e9fead6182afb38f893eb1e621ffd7223acb6f1449", kill_on_drop: false }`
[INFO] [stdout] 327184a109d90359821aa7e9fead6182afb38f893eb1e621ffd7223acb6f1449
[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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39d53c5493f149215470fc5ef9b613cce7e1fc9a44b521cefb99099514a2c2bd
[INFO] running `Command { std: "docker" "start" "-a" "39d53c5493f149215470fc5ef9b613cce7e1fc9a44b521cefb99099514a2c2bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling serde v1.0.190
[INFO] [stderr]    Compiling semver v1.0.20
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking json_comments v0.2.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking bytestream v0.4.1
[INFO] [stderr]     Checking quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.190
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling serde-semver-derive v0.1.1
[INFO] [stderr]     Checking serde-semver v0.2.1
[INFO] [stderr]     Checking flour v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.27s
[INFO] running `Command { std: "docker" "inspect" "39d53c5493f149215470fc5ef9b613cce7e1fc9a44b521cefb99099514a2c2bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d53c5493f149215470fc5ef9b613cce7e1fc9a44b521cefb99099514a2c2bd", kill_on_drop: false }`
[INFO] [stdout] 39d53c5493f149215470fc5ef9b613cce7e1fc9a44b521cefb99099514a2c2bd