[INFO] cloning repository https://github.com/ferrous-systems/cargo-flamegraph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ferrous-systems/cargo-flamegraph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrous-systems%2Fcargo-flamegraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrous-systems%2Fcargo-flamegraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] acb1cf2ffd0e69538e3e9848a291453f587e7163
[INFO] checking ferrous-systems/cargo-flamegraph against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fferrous-systems%2Fcargo-flamegraph" "/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/ferrous-systems/cargo-flamegraph on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ferrous-systems/cargo-flamegraph
[INFO] finished tweaking git repo https://github.com/ferrous-systems/cargo-flamegraph
[INFO] tweaked toml for git repo https://github.com/ferrous-systems/cargo-flamegraph written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/ferrous-systems/cargo-flamegraph already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 295fc9691bf2f1c42db2a642216b05c23adf7ff0797176199bacd9faef7fa4ee
[INFO] running `Command { std: "docker" "start" "-a" "295fc9691bf2f1c42db2a642216b05c23adf7ff0797176199bacd9faef7fa4ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "295fc9691bf2f1c42db2a642216b05c23adf7ff0797176199bacd9faef7fa4ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "295fc9691bf2f1c42db2a642216b05c23adf7ff0797176199bacd9faef7fa4ee", kill_on_drop: false }`
[INFO] [stdout] 295fc9691bf2f1c42db2a642216b05c23adf7ff0797176199bacd9faef7fa4ee
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e7bac173262f9faefb7421c07846ad4dd4a87d8e9eba9f0d617903e251ef37f
[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" "2e7bac173262f9faefb7421c07846ad4dd4a87d8e9eba9f0d617903e251ef37f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling ahash v0.6.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking rgb v0.8.25
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking quick-xml v0.20.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking inferno v0.10.2
[INFO] [stderr]     Checking semver v0.10.0
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Checking cargo_metadata v0.11.4
[INFO] [stderr]     Checking flamegraph v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "2e7bac173262f9faefb7421c07846ad4dd4a87d8e9eba9f0d617903e251ef37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e7bac173262f9faefb7421c07846ad4dd4a87d8e9eba9f0d617903e251ef37f", kill_on_drop: false }`
[INFO] [stdout] 2e7bac173262f9faefb7421c07846ad4dd4a87d8e9eba9f0d617903e251ef37f