[INFO] fetching crate shadow-rs 0.1.0...
[INFO] checking shadow-rs-0.1.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate shadow-rs 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate shadow-rs 0.1.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shadow-rs 0.1.0
[INFO] finished tweaking crates.io crate shadow-rs 0.1.0
[INFO] tweaked toml for crates.io crate shadow-rs 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 570b739394e370e64f12cabfd5666e53951d5a941e7c1f0c68aa986fdc392866
[INFO] running `Command { std: "docker" "start" "-a" "570b739394e370e64f12cabfd5666e53951d5a941e7c1f0c68aa986fdc392866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "570b739394e370e64f12cabfd5666e53951d5a941e7c1f0c68aa986fdc392866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "570b739394e370e64f12cabfd5666e53951d5a941e7c1f0c68aa986fdc392866", kill_on_drop: false }`
[INFO] [stdout] 570b739394e370e64f12cabfd5666e53951d5a941e7c1f0c68aa986fdc392866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38534e8af5b9c6c3e354825b6c55db8c60935ae6bd2ee3f012e8e6239c56a7ef
[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" "38534e8af5b9c6c3e354825b6c55db8c60935ae6bd2ee3f012e8e6239c56a7ef", kill_on_drop: false }`
[INFO] [stderr]     Checking shadow-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Shadow`
[INFO] [stdout]  --> src/shadow.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Shadow {}
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Environment`
[INFO] [stdout]  --> src/shadow.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Environment {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `BuildChannel`
[INFO] [stdout]   --> src/shadow.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum BuildChannel {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Project`
[INFO] [stdout]   --> src/shadow.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Project {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Git`
[INFO] [stdout]   --> src/shadow.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Git {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Shadow`
[INFO] [stdout]  --> src/shadow.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Shadow {}
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Environment`
[INFO] [stdout]  --> src/shadow.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Environment {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `BuildChannel`
[INFO] [stdout]   --> src/shadow.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum BuildChannel {
[INFO] [stdout]    |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Project`
[INFO] [stdout]   --> src/shadow.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Project {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Git`
[INFO] [stdout]   --> src/shadow.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Git {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "38534e8af5b9c6c3e354825b6c55db8c60935ae6bd2ee3f012e8e6239c56a7ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38534e8af5b9c6c3e354825b6c55db8c60935ae6bd2ee3f012e8e6239c56a7ef", kill_on_drop: false }`
[INFO] [stdout] 38534e8af5b9c6c3e354825b6c55db8c60935ae6bd2ee3f012e8e6239c56a7ef