[INFO] fetching crate functiontrace-server 0.8.6...
[INFO] checking functiontrace-server-0.8.6 against master#779e19d8baa3e3625bd4fc5c85cbb2ad47b43155 for pr-147589-1
[INFO] extracting crate functiontrace-server 0.8.6 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate functiontrace-server 0.8.6
[INFO] finished tweaking crates.io crate functiontrace-server 0.8.6
[INFO] tweaked toml for crates.io crate functiontrace-server 0.8.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate functiontrace-server 0.8.6 on toolchain 779e19d8baa3e3625bd4fc5c85cbb2ad47b43155
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate functiontrace-server 0.8.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded spinoff v0.8.0
[INFO] [stderr]   Downloaded atomic-wait v1.1.0
[INFO] [stderr]   Downloaded argh_shared v0.1.13
[INFO] [stderr]   Downloaded progress-streams v1.1.0
[INFO] [stderr]   Downloaded bytesize v2.0.1
[INFO] [stderr]   Downloaded check-latest v1.0.2
[INFO] [stderr]   Downloaded argh_derive v0.1.13
[INFO] [stderr]   Downloaded argh v0.1.13
[INFO] [stderr]   Downloaded cc v1.2.29
[INFO] [stderr]   Downloaded rust-fuzzy-search v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52ea261ee4699d16125c67845b65965331cb0625f5ee29ec2dafa398e3bd1a70
[INFO] running `Command { std: "docker" "start" "-a" "52ea261ee4699d16125c67845b65965331cb0625f5ee29ec2dafa398e3bd1a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52ea261ee4699d16125c67845b65965331cb0625f5ee29ec2dafa398e3bd1a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ea261ee4699d16125c67845b65965331cb0625f5ee29ec2dafa398e3bd1a70", kill_on_drop: false }`
[INFO] [stdout] 52ea261ee4699d16125c67845b65965331cb0625f5ee29ec2dafa398e3bd1a70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+779e19d8baa3e3625bd4fc5c85cbb2ad47b43155" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fc988f21fc5afe55f392901ab25f8009604d35b2c5fba6f975633cecb228325
[INFO] running `Command { std: "docker" "start" "-a" "4fc988f21fc5afe55f392901ab25f8009604d35b2c5fba6f975633cecb228325", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling cc v1.2.29
[INFO] [stderr]     Checking hashbrown v0.15.4
[INFO] [stderr]     Checking futures-task v0.3.31
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[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]     Checking anstyle-parse v0.2.7
[INFO] [stderr]     Checking object v0.36.7
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking rustc-demangle v0.1.25
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling argh_shared v0.1.13
[INFO] [stderr]     Checking colorchoice v1.0.4
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[INFO] [stderr]     Checking functiontrace-server v0.8.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `GarbageCollection` is never constructed
[INFO] [stdout]    --> src/profile_generator.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 112 | enum CategoryIndex {
[INFO] [stdout]     |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 118 |     GarbageCollection,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CategoryIndex` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `GarbageCollection` is never constructed
[INFO] [stdout]    --> src/profile_generator.rs:118:5
[INFO] [stdout]     |
[INFO] [stdout] 112 | enum CategoryIndex {
[INFO] [stdout]     |      ------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 118 |     GarbageCollection,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CategoryIndex` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.83s
[INFO] running `Command { std: "docker" "inspect" "4fc988f21fc5afe55f392901ab25f8009604d35b2c5fba6f975633cecb228325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc988f21fc5afe55f392901ab25f8009604d35b2c5fba6f975633cecb228325", kill_on_drop: false }`
[INFO] [stdout] 4fc988f21fc5afe55f392901ab25f8009604d35b2c5fba6f975633cecb228325