[INFO] cloning repository https://github.com/karheinz/lean
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/karheinz/lean" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b718022bb2097be1cadd02d1a01421051e11a2e5
[INFO] checking karheinz/lean against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/karheinz/lean on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/karheinz/lean
[INFO] finished tweaking git repo https://github.com/karheinz/lean
[INFO] tweaked toml for git repo https://github.com/karheinz/lean written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/karheinz/lean already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/karheinz/serde-yaml/`
[INFO] [stderr]     Updating git repository `https://github.com/karheinz/yaml-rust/`
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5ec9311692d9177da772cfd3a934e0359a5302392994fd249c8f2dac1d0f1a5
[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" "b5ec9311692d9177da772cfd3a934e0359a5302392994fd249c8f2dac1d0f1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5ec9311692d9177da772cfd3a934e0359a5302392994fd249c8f2dac1d0f1a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5ec9311692d9177da772cfd3a934e0359a5302392994fd249c8f2dac1d0f1a5", kill_on_drop: false }`
[INFO] [stdout] b5ec9311692d9177da772cfd3a934e0359a5302392994fd249c8f2dac1d0f1a5
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dc2e2ea17e6bfb37cacbb3c5bbcd2a8ea669671b4eb16e0ffc2ad4bc946a9cb
[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" "7dc2e2ea17e6bfb37cacbb3c5bbcd2a8ea669671b4eb16e0ffc2ad4bc946a9cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking yaml-rust v0.4.3 (https://github.com/karheinz/yaml-rust/?branch=feature/multiline#6f4119b4)
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking serde_yaml v0.8.11 (https://github.com/karheinz/serde-yaml/?branch=feature/multiline#5ac1763a)
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking lean v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.42s
[INFO] running `Command { std: "docker" "inspect" "7dc2e2ea17e6bfb37cacbb3c5bbcd2a8ea669671b4eb16e0ffc2ad4bc946a9cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dc2e2ea17e6bfb37cacbb3c5bbcd2a8ea669671b4eb16e0ffc2ad4bc946a9cb", kill_on_drop: false }`
[INFO] [stdout] 7dc2e2ea17e6bfb37cacbb3c5bbcd2a8ea669671b4eb16e0ffc2ad4bc946a9cb