[INFO] fetching crate zkvmc-trace 0.0.1...
[INFO] checking zkvmc-trace-0.0.1 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate zkvmc-trace 0.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate zkvmc-trace 0.0.1
[INFO] finished tweaking crates.io crate zkvmc-trace 0.0.1
[INFO] tweaked toml for crates.io crate zkvmc-trace 0.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zkvmc-trace 0.0.1 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate zkvmc-trace 0.0.1 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c73ea7908709f6171e650dd8b4e38a11ea64fc8665b46b200c4c138206d9cdc5
[INFO] running `Command { std: "docker" "start" "-a" "c73ea7908709f6171e650dd8b4e38a11ea64fc8665b46b200c4c138206d9cdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c73ea7908709f6171e650dd8b4e38a11ea64fc8665b46b200c4c138206d9cdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c73ea7908709f6171e650dd8b4e38a11ea64fc8665b46b200c4c138206d9cdc5", kill_on_drop: false }`
[INFO] [stdout] c73ea7908709f6171e650dd8b4e38a11ea64fc8665b46b200c4c138206d9cdc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 110849e4475ac53932ee4380cb3eecfcd58a8ac1453259dab034d28ef799f2e2
[INFO] running `Command { std: "docker" "start" "-a" "110849e4475ac53932ee4380cb3eecfcd58a8ac1453259dab034d28ef799f2e2", kill_on_drop: false }`
[INFO] [stderr]     Checking zkvmc-trace v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Collector` is never used
[INFO] [stdout]  --> src/collect.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Collector {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Collector` is never used
[INFO] [stdout]  --> src/collect.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Collector {
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "110849e4475ac53932ee4380cb3eecfcd58a8ac1453259dab034d28ef799f2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110849e4475ac53932ee4380cb3eecfcd58a8ac1453259dab034d28ef799f2e2", kill_on_drop: false }`
[INFO] [stdout] 110849e4475ac53932ee4380cb3eecfcd58a8ac1453259dab034d28ef799f2e2