[INFO] fetching crate mwc_core 5.3.9...
[INFO] checking mwc_core-5.3.9 against master#cced03bfd61a304243a34504618ecec86c17063f for pr-157082
[INFO] extracting crate mwc_core 5.3.9 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mwc_core 5.3.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate mwc_core 5.3.9
[INFO] tweaked toml for crates.io crate mwc_core 5.3.9 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mwc_core 5.3.9 on toolchain cced03bfd61a304243a34504618ecec86c17063f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mwc_core 5.3.9 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" "+cced03bfd61a304243a34504618ecec86c17063f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typemap-ors v1.0.0
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[INFO] [stderr]   Downloaded croaring-sys v2.1.0
[INFO] [stderr]   Downloaded mwc_keychain v5.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa
[INFO] running `Command { std: "docker" "start" "df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa" "/opt/rustwide/cargo-home/bin/cargo" "+cced03bfd61a304243a34504618ecec86c17063f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/pow/common.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Edge {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/pow/common.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Edge {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestElem` is never constructed
[INFO] [stdout]    --> tests/common.rs:172:12
[INFO] [stdout]     |
[INFO] [stdout] 172 | pub struct TestElem(pub [u32; 4]);
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[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 33.43s
[INFO] running `Command { std: "docker" "inspect" "df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa", kill_on_drop: false }`
[INFO] [stdout] df4aeca7353741df48b8ea4bdbaa5e5b3c20abc7132af1fc8bbb28d6c99032aa
