[INFO] cloning repository https://github.com/kan1-u/kani
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kan1-u/kani" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkan1-u%2Fkani", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkan1-u%2Fkani'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f24b87eb748d3075a029bce84c78a802e5ae10b8
[INFO] testing kan1-u/kani against 1.52.1 for beta-1.52-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkan1-u%2Fkani" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kan1-u/kani on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kan1-u/kani
[INFO] finished tweaking git repo https://github.com/kan1-u/kani
[INFO] tweaked toml for git repo https://github.com/kan1-u/kani written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/kan1-u/kani already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline-derive v0.4.0
[INFO] [stderr]   Downloaded rustyline v7.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.52.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68c517c779796700bdc35d52023dfd130d26bd04a114440d7508715b9eff4c52
[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" "68c517c779796700bdc35d52023dfd130d26bd04a114440d7508715b9eff4c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68c517c779796700bdc35d52023dfd130d26bd04a114440d7508715b9eff4c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c517c779796700bdc35d52023dfd130d26bd04a114440d7508715b9eff4c52", kill_on_drop: false }`
[INFO] [stdout] 68c517c779796700bdc35d52023dfd130d26bd04a114440d7508715b9eff4c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fce7c5f07fbfabea37c0a3eec4ee87e1f94999b7f2892d4fbfda54848f5a9f9
[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" "1fce7c5f07fbfabea37c0a3eec4ee87e1f94999b7f2892d4fbfda54848f5a9f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling tap v1.0.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling nom v6.1.0
[INFO] [stderr]    Compiling bitvec v0.19.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rustyline-derive v0.4.0
[INFO] [stderr]    Compiling kani-parser v0.2.0 (/opt/rustwide/workdir/kani-parser)
[INFO] [stderr]    Compiling kani-evaluator v0.2.0 (/opt/rustwide/workdir/kani-evaluator)
[INFO] [stderr]    Compiling rustyline v7.1.0
[INFO] [stderr]    Compiling kani-cmd v0.2.0 (/opt/rustwide/workdir/kani-cmd)
[INFO] [stderr]    Compiling kani-repl v0.2.0 (/opt/rustwide/workdir/kani-repl)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "1fce7c5f07fbfabea37c0a3eec4ee87e1f94999b7f2892d4fbfda54848f5a9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fce7c5f07fbfabea37c0a3eec4ee87e1f94999b7f2892d4fbfda54848f5a9f9", kill_on_drop: false }`
[INFO] [stdout] 1fce7c5f07fbfabea37c0a3eec4ee87e1f94999b7f2892d4fbfda54848f5a9f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.52.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba8ae531bbd9e544189e525d6b415bac0742445ef51df8c0513078c9c8937ca4
[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" "ba8ae531bbd9e544189e525d6b415bac0742445ef51df8c0513078c9c8937ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling kani-parser v0.2.0 (/opt/rustwide/workdir/kani-parser)
[INFO] [stderr]    Compiling kani-evaluator v0.2.0 (/opt/rustwide/workdir/kani-evaluator)
[INFO] [stderr]    Compiling kani-cmd v0.2.0 (/opt/rustwide/workdir/kani-cmd)
[INFO] [stderr]    Compiling kani-repl v0.2.0 (/opt/rustwide/workdir/kani-repl)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "ba8ae531bbd9e544189e525d6b415bac0742445ef51df8c0513078c9c8937ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8ae531bbd9e544189e525d6b415bac0742445ef51df8c0513078c9c8937ca4", kill_on_drop: false }`
[INFO] [stdout] ba8ae531bbd9e544189e525d6b415bac0742445ef51df8c0513078c9c8937ca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8806abbc3e5faf5625e305eda2e170dcad85dc0ffb50176a4834fa5154604725
[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" "8806abbc3e5faf5625e305eda2e170dcad85dc0ffb50176a4834fa5154604725", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kani_cmd-4f828a38d74a9b91)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kani_evaluator-7cb96a2c909addd8)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kani_parser-0ab9397904666407)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test lexer::punctuation::tests::punctuation_test ... ok
[INFO] [stdout] test lexer::tests::punctuation_test ... ok
[INFO] [stdout] test lexer::operator::tests::operator_test ... ok
[INFO] [stdout] test lexer::illegal::tests::illegal_test ... ok
[INFO] [stdout] test lexer::string::tests::string_test ... ok
[INFO] [stdout] test lexer::tests::identifier_test ... ok
[INFO] [stdout] test lexer::tests::operator_test ... ok
[INFO] [stdout] test lexer::tests::float_test ... ok
[INFO] [stdout] test lexer::tests::integer_test ... ok
[INFO] [stdout] test parser::tests::call_test ... ok
[INFO] [stdout] test lexer::reserved::tests::reserved_test ... ok
[INFO] [stdout] test lexer::tests::string_test ... ok
[INFO] [stdout] test lexer::identifier::tests::identifier_test ... ok
[INFO] [stdout] test parser::tests::function_test ... ok
[INFO] [stdout] test lexer::tests::reserved_test ... ok
[INFO] [stdout] test lexer::tests::illegal_test ... ok
[INFO] [stdout] test parser::tests::pratt_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kani_repl-82dc93c8acc887e2)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kani-parser
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests kani-evaluator
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8806abbc3e5faf5625e305eda2e170dcad85dc0ffb50176a4834fa5154604725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8806abbc3e5faf5625e305eda2e170dcad85dc0ffb50176a4834fa5154604725", kill_on_drop: false }`
[INFO] [stdout] 8806abbc3e5faf5625e305eda2e170dcad85dc0ffb50176a4834fa5154604725