[INFO] fetching crate variant-config 0.1.1...
[INFO] checking variant-config-0.1.1 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate variant-config 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate variant-config 0.1.1 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate variant-config 0.1.1
[INFO] finished tweaking crates.io crate variant-config 0.1.1
[INFO] tweaked toml for crates.io crate variant-config 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate variant-config 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mach v0.3.2
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded cranelift-native v0.72.0
[INFO] [stderr]   Downloaded bson v1.2.0
[INFO] [stderr]   Downloaded cranelift-frontend v0.72.0
[INFO] [stderr]   Downloaded cranelift v0.72.0
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] [stderr]   Downloaded cranelift-bforest v0.72.0
[INFO] [stderr]   Downloaded regalloc v0.0.31
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.72.0
[INFO] [stderr]   Downloaded cranelift-module v0.72.0
[INFO] [stderr]   Downloaded cranelift-codegen v0.72.0
[INFO] [stderr]   Downloaded target-lexicon v0.11.2
[INFO] [stderr]   Downloaded region v2.2.0
[INFO] [stderr]   Downloaded cranelift-entity v0.72.0
[INFO] [stderr]   Downloaded cranelift-jit v0.72.0
[INFO] [stderr]   Downloaded hashbrown v0.11.2
[INFO] [stderr]   Downloaded ahash v0.7.2
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.72.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e7f160f62460c72a78fa3fe7c6ecf0a891cf45136a810a7ea0949c4b66ddad5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5e7f160f62460c72a78fa3fe7c6ecf0a891cf45136a810a7ea0949c4b66ddad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e7f160f62460c72a78fa3fe7c6ecf0a891cf45136a810a7ea0949c4b66ddad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e7f160f62460c72a78fa3fe7c6ecf0a891cf45136a810a7ea0949c4b66ddad5", kill_on_drop: false }`
[INFO] [stdout] 5e7f160f62460c72a78fa3fe7c6ecf0a891cf45136a810a7ea0949c4b66ddad5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b04309510edf0dd4ad6d3166409eb606b30d81514763e88cd9cf789bd74511d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0b04309510edf0dd4ad6d3166409eb606b30d81514763e88cd9cf789bd74511d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.72.0
[INFO] [stderr]    Compiling cranelift-entity v0.72.0
[INFO] [stderr]    Compiling target-lexicon v0.11.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking cranelift-bforest v0.72.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.72.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]    Compiling ahash v0.7.2
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]    Compiling cranelift-codegen v0.72.0
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking bson v1.2.0
[INFO] [stderr]     Checking cranelift-native v0.72.0
[INFO] [stderr]     Checking cranelift-frontend v0.72.0
[INFO] [stderr]     Checking cranelift-module v0.72.0
[INFO] [stderr]     Checking cranelift-jit v0.72.0
[INFO] [stderr]     Checking cranelift v0.72.0
[INFO] [stderr]     Checking variant-config v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "0b04309510edf0dd4ad6d3166409eb606b30d81514763e88cd9cf789bd74511d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b04309510edf0dd4ad6d3166409eb606b30d81514763e88cd9cf789bd74511d", kill_on_drop: false }`
[INFO] [stdout] 0b04309510edf0dd4ad6d3166409eb606b30d81514763e88cd9cf789bd74511d