[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 master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkarheinz%2Flean" "/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/karheinz/lean on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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-6/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" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "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-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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84d89775f3211ce5f013438163d4c8c6debae7e1c9e7b7c930d6468a564ce328
[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" "84d89775f3211ce5f013438163d4c8c6debae7e1c9e7b7c930d6468a564ce328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84d89775f3211ce5f013438163d4c8c6debae7e1c9e7b7c930d6468a564ce328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84d89775f3211ce5f013438163d4c8c6debae7e1c9e7b7c930d6468a564ce328", kill_on_drop: false }`
[INFO] [stdout] 84d89775f3211ce5f013438163d4c8c6debae7e1c9e7b7c930d6468a564ce328
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b133aac9144c27e2fb701615fc8d52dddcc97ca8aa8bbfe01ec9e2d0758df1bf
[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" "b133aac9144c27e2fb701615fc8d52dddcc97ca8aa8bbfe01ec9e2d0758df1bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dtoa v0.4.4
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking yaml-rust v0.4.3 (https://github.com/karheinz/yaml-rust/?branch=feature/multiline#6f4119b4)
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking serde_yaml v0.8.11 (https://github.com/karheinz/serde-yaml/?branch=feature/multiline#5ac1763a)
[INFO] [stderr]     Checking lean v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.40s
[INFO] running `Command { std: "docker" "inspect" "b133aac9144c27e2fb701615fc8d52dddcc97ca8aa8bbfe01ec9e2d0758df1bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b133aac9144c27e2fb701615fc8d52dddcc97ca8aa8bbfe01ec9e2d0758df1bf", kill_on_drop: false }`
[INFO] [stdout] b133aac9144c27e2fb701615fc8d52dddcc97ca8aa8bbfe01ec9e2d0758df1bf