[INFO] fetching crate variant-config 0.1.2...
[INFO] checking variant-config-0.1.2 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate variant-config 0.1.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate variant-config 0.1.2 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate variant-config 0.1.2
[INFO] finished tweaking crates.io crate variant-config 0.1.2
[INFO] tweaked toml for crates.io crate variant-config 0.1.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate variant-config 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a3bdd2b6ec0e5c559aad648c2212b79967b414e656864c3ab2648f2be67f9b2
[INFO] running `Command { std: "docker" "start" "-a" "1a3bdd2b6ec0e5c559aad648c2212b79967b414e656864c3ab2648f2be67f9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a3bdd2b6ec0e5c559aad648c2212b79967b414e656864c3ab2648f2be67f9b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a3bdd2b6ec0e5c559aad648c2212b79967b414e656864c3ab2648f2be67f9b2", kill_on_drop: false }`
[INFO] [stdout] 1a3bdd2b6ec0e5c559aad648c2212b79967b414e656864c3ab2648f2be67f9b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd0acf27ceac93706919ef7f2e096f8a9b59ee60b8df2f428905faa23be4d7d0
[INFO] running `Command { std: "docker" "start" "-a" "bd0acf27ceac93706919ef7f2e096f8a9b59ee60b8df2f428905faa23be4d7d0", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.74.0
[INFO] [stderr]    Compiling cranelift-entity v0.74.0
[INFO] [stderr]    Compiling target-lexicon v0.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking anyhow v1.0.40
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking cranelift-bforest v0.74.0
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.74.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking peg v0.7.0
[INFO] [stderr]    Compiling cranelift-codegen v0.74.0
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking bson v1.2.2
[INFO] [stderr]     Checking cranelift-native v0.74.0
[INFO] [stderr]     Checking cranelift-module v0.74.0
[INFO] [stderr]     Checking cranelift-frontend v0.74.0
[INFO] [stderr]     Checking cranelift-jit v0.74.0
[INFO] [stderr]     Checking cranelift v0.74.0
[INFO] [stderr]     Checking variant-config v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.35s
[INFO] running `Command { std: "docker" "inspect" "bd0acf27ceac93706919ef7f2e096f8a9b59ee60b8df2f428905faa23be4d7d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd0acf27ceac93706919ef7f2e096f8a9b59ee60b8df2f428905faa23be4d7d0", kill_on_drop: false }`
[INFO] [stdout] bd0acf27ceac93706919ef7f2e096f8a9b59ee60b8df2f428905faa23be4d7d0