[INFO] updating cached repository https://github.com/staktrace/supercollapser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ff33d13e4d5c2c1f8b88df9dce4afe1538d3dd4
[INFO] checking staktrace/supercollapser against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaktrace%2Fsupercollapser" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/staktrace/supercollapser on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/staktrace/supercollapser
[INFO] finished tweaking git repo https://github.com/staktrace/supercollapser
[INFO] tweaked toml for git repo https://github.com/staktrace/supercollapser written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/staktrace/supercollapser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3efbc6d04fdb23fdb236362ae123c30e9bf4edecf3a2157fa3f2c6ae7bfa9413
[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" "3efbc6d04fdb23fdb236362ae123c30e9bf4edecf3a2157fa3f2c6ae7bfa9413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3efbc6d04fdb23fdb236362ae123c30e9bf4edecf3a2157fa3f2c6ae7bfa9413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efbc6d04fdb23fdb236362ae123c30e9bf4edecf3a2157fa3f2c6ae7bfa9413", kill_on_drop: false }`
[INFO] [stdout] 3efbc6d04fdb23fdb236362ae123c30e9bf4edecf3a2157fa3f2c6ae7bfa9413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21c20f61c5e997cbf19797cea4efb79cc4be7a21d325ab04c623f9c6a6540aaf
[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" "21c20f61c5e997cbf19797cea4efb79cc4be7a21d325ab04c623f9c6a6540aaf", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking humantime v1.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking supercollapser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stdout]    --> src/main.rs:444:17
[INFO] [stdout]     |
[INFO] [stdout] 444 |         if line.trim_left().starts_with("if ") {
[INFO] [stdout]     |                 ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'core::str::<impl str>::trim_left': superseded by `trim_start`
[INFO] [stdout]    --> src/main.rs:444:17
[INFO] [stdout]     |
[INFO] [stdout] 444 |         if line.trim_left().starts_with("if ") {
[INFO] [stdout]     |                 ^^^^^^^^^ help: replace the use of the deprecated item: `trim_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.20s
[INFO] running `Command { std: "docker" "inspect" "21c20f61c5e997cbf19797cea4efb79cc4be7a21d325ab04c623f9c6a6540aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c20f61c5e997cbf19797cea4efb79cc4be7a21d325ab04c623f9c6a6540aaf", kill_on_drop: false }`
[INFO] [stdout] 21c20f61c5e997cbf19797cea4efb79cc4be7a21d325ab04c623f9c6a6540aaf