[INFO] fetching crate flour 2.0.0...
[INFO] checking flour-2.0.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate flour 2.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate flour 2.0.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "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-1-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.190
[INFO] [stderr]   Downloaded thiserror v1.0.50
[INFO] [stderr]   Downloaded bytestream v0.4.1
[INFO] [stderr]   Downloaded termcolor v1.3.0
[INFO] [stderr]   Downloaded serde_derive v1.0.190
[INFO] [stderr]   Downloaded proc-macro2 v1.0.69
[INFO] [stderr]   Downloaded serde-semver-derive v0.1.1
[INFO] [stderr]   Downloaded ryu v1.0.15
[INFO] [stderr]   Downloaded thiserror-impl v1.0.50
[INFO] [stderr]   Downloaded json_comments v0.2.1
[INFO] [stderr]   Downloaded serde-semver v0.2.1
[INFO] [stderr]   Downloaded itoa v1.0.9
[INFO] [stderr]   Downloaded syn v2.0.38
[INFO] [stderr]   Downloaded libc v0.2.149
[INFO] [stderr]   Downloaded encoding_rs v0.8.33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c944bb322d6f6e64ba69cbafb461047b7556a61aad6384a260086e3155c48b6
[INFO] running `Command { std: "docker" "start" "-a" "1c944bb322d6f6e64ba69cbafb461047b7556a61aad6384a260086e3155c48b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c944bb322d6f6e64ba69cbafb461047b7556a61aad6384a260086e3155c48b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c944bb322d6f6e64ba69cbafb461047b7556a61aad6384a260086e3155c48b6", kill_on_drop: false }`
[INFO] [stdout] 1c944bb322d6f6e64ba69cbafb461047b7556a61aad6384a260086e3155c48b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5682e50d8be1fa84e5c060302a6c228d5687cfa7013ecf0ae79b0e673983e990
[INFO] running `Command { std: "docker" "start" "-a" "5682e50d8be1fa84e5c060302a6c228d5687cfa7013ecf0ae79b0e673983e990", 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]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling serde_json v1.0.108
[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 bytestream v0.4.1
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]    Compiling 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 14.95s
[INFO] running `Command { std: "docker" "inspect" "5682e50d8be1fa84e5c060302a6c228d5687cfa7013ecf0ae79b0e673983e990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5682e50d8be1fa84e5c060302a6c228d5687cfa7013ecf0ae79b0e673983e990", kill_on_drop: false }`
[INFO] [stdout] 5682e50d8be1fa84e5c060302a6c228d5687cfa7013ecf0ae79b0e673983e990