[INFO] cloning repository https://github.com/szunami/flamegraph-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/szunami/flamegraph-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszunami%2Fflamegraph-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszunami%2Fflamegraph-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2931399f4af9cf6fa819ee8bbad538fa573765d
[INFO] checking szunami/flamegraph-example against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszunami%2Fflamegraph-example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/szunami/flamegraph-example on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/szunami/flamegraph-example
[INFO] finished tweaking git repo https://github.com/szunami/flamegraph-example
[INFO] tweaked toml for git repo https://github.com/szunami/flamegraph-example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/szunami/flamegraph-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c135f27f8462212939bc0a910c149fbdf3f030f6727af894374244e618c072e
[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" "3c135f27f8462212939bc0a910c149fbdf3f030f6727af894374244e618c072e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c135f27f8462212939bc0a910c149fbdf3f030f6727af894374244e618c072e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c135f27f8462212939bc0a910c149fbdf3f030f6727af894374244e618c072e", kill_on_drop: false }`
[INFO] [stdout] 3c135f27f8462212939bc0a910c149fbdf3f030f6727af894374244e618c072e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26b025c5aa182d60948f42a3b7be4c519108a1c53855961def713baad7a8d794
[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" "26b025c5aa182d60948f42a3b7be4c519108a1c53855961def713baad7a8d794", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.17
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling pprof v0.3.18
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking quick-xml v0.19.0
[INFO] [stderr]    Compiling cpp_demangle v0.3.1
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]    Compiling symbolic-demangle v7.5.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling const-random-macro v0.1.11
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking const-random v0.1.11
[INFO] [stderr]     Checking ahash v0.4.6
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking inferno v0.10.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking flamegraph-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.85s
[INFO] running `Command { std: "docker" "inspect" "26b025c5aa182d60948f42a3b7be4c519108a1c53855961def713baad7a8d794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b025c5aa182d60948f42a3b7be4c519108a1c53855961def713baad7a8d794", kill_on_drop: false }`
[INFO] [stdout] 26b025c5aa182d60948f42a3b7be4c519108a1c53855961def713baad7a8d794