[INFO] fetching crate deepr-utils 0.1.2...
[INFO] checking deepr-utils-0.1.2 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate deepr-utils 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate deepr-utils 0.1.2
[INFO] finished tweaking crates.io crate deepr-utils 0.1.2
[INFO] tweaked toml for crates.io crate deepr-utils 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate deepr-utils 0.1.2 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate deepr-utils 0.1.2 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7a031de54ae534efa0df05cacf0938da742448fa7eb5a274ef593bb08783476
[INFO] running `Command { std: "docker" "start" "-a" "f7a031de54ae534efa0df05cacf0938da742448fa7eb5a274ef593bb08783476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7a031de54ae534efa0df05cacf0938da742448fa7eb5a274ef593bb08783476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a031de54ae534efa0df05cacf0938da742448fa7eb5a274ef593bb08783476", kill_on_drop: false }`
[INFO] [stdout] f7a031de54ae534efa0df05cacf0938da742448fa7eb5a274ef593bb08783476
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5aad7a315aaa96ea9ab9548dc176ec6577abedc8f073ae22c9f37090bdc276cb
[INFO] running `Command { std: "docker" "start" "-a" "5aad7a315aaa96ea9ab9548dc176ec6577abedc8f073ae22c9f37090bdc276cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking iana-time-zone v0.1.61
[INFO] [stderr]     Checking chrono v0.4.40
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]     Checking directories v6.0.0
[INFO] [stderr]     Checking deepr-utils v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `RuntimeOS` is never constructed
[INFO] [stdout]  --> src/os.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RuntimeOS {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `RuntimeOS` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `RuntimeOS` is never constructed
[INFO] [stdout]  --> src/os.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct RuntimeOS {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]   = note: `RuntimeOS` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `deepr-utils` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `deepr-utils` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5aad7a315aaa96ea9ab9548dc176ec6577abedc8f073ae22c9f37090bdc276cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aad7a315aaa96ea9ab9548dc176ec6577abedc8f073ae22c9f37090bdc276cb", kill_on_drop: false }`
[INFO] [stdout] 5aad7a315aaa96ea9ab9548dc176ec6577abedc8f073ae22c9f37090bdc276cb
