[INFO] fetching crate varisat 0.2.2...
[INFO] checking varisat-0.2.2 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate varisat 0.2.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate varisat 0.2.2 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 varisat 0.2.2
[INFO] finished tweaking crates.io crate varisat 0.2.2
[INFO] tweaked toml for crates.io crate varisat 0.2.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 378a9c9866eb181f018241ccc95c4507a5f90ddbac5b8d98698bc8eec2cb9260
[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" "378a9c9866eb181f018241ccc95c4507a5f90ddbac5b8d98698bc8eec2cb9260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "378a9c9866eb181f018241ccc95c4507a5f90ddbac5b8d98698bc8eec2cb9260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "378a9c9866eb181f018241ccc95c4507a5f90ddbac5b8d98698bc8eec2cb9260", kill_on_drop: false }`
[INFO] [stdout] 378a9c9866eb181f018241ccc95c4507a5f90ddbac5b8d98698bc8eec2cb9260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] bf0ebefbcdfcba54ddb6fecc47d6db0de49871cbf594b5ce7a4e5fc351579996
[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" "bf0ebefbcdfcba54ddb6fecc47d6db0de49871cbf594b5ce7a4e5fc351579996", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking vec_mut_scan v0.3.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]    Compiling varisat v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr] warning: drat-trim proof checker not found, some tests will be disabled: No such file or directory (os error 2)
[INFO] [stderr] warning: rate proof checker not found, some tests will be disabled: No such file or directory (os error 2)
[INFO] [stderr]     Checking ordered-float v2.1.1
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]     Checking proptest v0.10.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling partial_ref_derive v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling varisat-internal-macros v0.2.2
[INFO] [stderr]     Checking partial_ref v0.3.2
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking varisat-formula v0.2.2
[INFO] [stderr]     Checking varisat-dimacs v0.2.2
[INFO] [stderr]     Checking varisat-internal-proof v0.2.2
[INFO] [stderr]     Checking varisat-checker v0.2.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "bf0ebefbcdfcba54ddb6fecc47d6db0de49871cbf594b5ce7a4e5fc351579996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0ebefbcdfcba54ddb6fecc47d6db0de49871cbf594b5ce7a4e5fc351579996", kill_on_drop: false }`
[INFO] [stdout] bf0ebefbcdfcba54ddb6fecc47d6db0de49871cbf594b5ce7a4e5fc351579996