[INFO] fetching crate firestorm 0.4.6...
[INFO] checking firestorm-0.4.6 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate firestorm 0.4.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate firestorm 0.4.6 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate firestorm 0.4.6
[INFO] finished tweaking crates.io crate firestorm 0.4.6
[INFO] tweaked toml for crates.io crate firestorm 0.4.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 93cbbd5e9f71d5b164c9aa1ce9db0c4d7a9e57d14528c9569f97f0ed7820e2e1
[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" "93cbbd5e9f71d5b164c9aa1ce9db0c4d7a9e57d14528c9569f97f0ed7820e2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93cbbd5e9f71d5b164c9aa1ce9db0c4d7a9e57d14528c9569f97f0ed7820e2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93cbbd5e9f71d5b164c9aa1ce9db0c4d7a9e57d14528c9569f97f0ed7820e2e1", kill_on_drop: false }`
[INFO] [stdout] 93cbbd5e9f71d5b164c9aa1ce9db0c4d7a9e57d14528c9569f97f0ed7820e2e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] e8d4c34c888622b74f2e5aecccaf3d88ad4fc7248e9f33ed048dbe4e01f4e4a2
[INFO] running `Command { std: "docker" "start" "-a" "e8d4c34c888622b74f2e5aecccaf3d88ad4fc7248e9f33ed048dbe4e01f4e4a2", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking firestorm v0.4.6 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking thread-priority v0.2.1
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] error[E0425]: cannot find function `to_svg` in crate `firestorm`
[INFO] [stdout]   --> benches/soak_bench.rs:72:16
[INFO] [stdout]    |
[INFO] [stdout] 72 |     firestorm::to_svg(&mut std::fs::File::create("flame-graph.svg").unwrap()).unwrap();
[INFO] [stdout]    |                ^^^^^^ not found in `firestorm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `firestorm`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e8d4c34c888622b74f2e5aecccaf3d88ad4fc7248e9f33ed048dbe4e01f4e4a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8d4c34c888622b74f2e5aecccaf3d88ad4fc7248e9f33ed048dbe4e01f4e4a2", kill_on_drop: false }`
[INFO] [stdout] e8d4c34c888622b74f2e5aecccaf3d88ad4fc7248e9f33ed048dbe4e01f4e4a2