[INFO] cloning repository https://github.com/m1el/flamegraph-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m1el/flamegraph-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1el%2Fflamegraph-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1el%2Fflamegraph-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89d76f262d0e1b6c5834080fd1900db6f3fc146b
[INFO] testing m1el/flamegraph-rs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1el%2Fflamegraph-rs" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m1el/flamegraph-rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m1el/flamegraph-rs
[INFO] finished tweaking git repo https://github.com/m1el/flamegraph-rs
[INFO] tweaked toml for git repo https://github.com/m1el/flamegraph-rs written to /workspace/builds/worker-116/source/Cargo.toml
[INFO] crate git repo https://github.com/m1el/flamegraph-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d134d70b2c9bc5e73f340b9510a1a28132afd189abe4fd47e153283bcb01a6c
[INFO] running `Command { std: "docker" "start" "-a" "4d134d70b2c9bc5e73f340b9510a1a28132afd189abe4fd47e153283bcb01a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d134d70b2c9bc5e73f340b9510a1a28132afd189abe4fd47e153283bcb01a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d134d70b2c9bc5e73f340b9510a1a28132afd189abe4fd47e153283bcb01a6c", kill_on_drop: false }`
[INFO] [stdout] 4d134d70b2c9bc5e73f340b9510a1a28132afd189abe4fd47e153283bcb01a6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96908d12a25005fa07bf1f15daab427a8b58305637b8bdee9c07dc1c1690b180
[INFO] running `Command { std: "docker" "start" "-a" "96908d12a25005fa07bf1f15daab427a8b58305637b8bdee9c07dc1c1690b180", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling string-interner v0.7.0
[INFO] [stderr]    Compiling flamegraph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `xml_escape`
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | mod xml_escape;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `xml_escape`, create file "src/xml_escape.rs" or "src/xml_escape/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `num_fmt`
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | mod num_fmt;
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: to create the module `num_fmt`, create file "src/num_fmt.rs" or "src/num_fmt/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `xml_escape::XmlEscape`
[INFO] [stdout]  --> src/main.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | use xml_escape::{XmlEscape};
[INFO] [stdout]   |                  ^^^^^^^^^ no `XmlEscape` in `xml_escape`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `num_fmt::NumFmt`
[INFO] [stdout]   --> src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use num_fmt::{NumFmt};
[INFO] [stdout]    |               ^^^^^^ no `NumFmt` in `num_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0583.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flamegraph` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "96908d12a25005fa07bf1f15daab427a8b58305637b8bdee9c07dc1c1690b180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96908d12a25005fa07bf1f15daab427a8b58305637b8bdee9c07dc1c1690b180", kill_on_drop: false }`
[INFO] [stdout] 96908d12a25005fa07bf1f15daab427a8b58305637b8bdee9c07dc1c1690b180