[INFO] cloning repository https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleeian1011%2FRcUnsafeCellVec-vs-Vec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleeian1011%2FRcUnsafeCellVec-vs-Vec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9466dd0426fc0c4ee01866d4dda24372a5c2515e
[INFO] checking leeian1011/RcUnsafeCellVec-vs-Vec against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleeian1011%2FRcUnsafeCellVec-vs-Vec" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec
[INFO] finished tweaking git repo https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec
[INFO] tweaked toml for git repo https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/leeian1011/RcUnsafeCellVec-vs-Vec 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c76c09fcf4719b9b275bd2929bc1bc5841331f56bd5965d8eb0977e0b5d2b552
[INFO] running `Command { std: "docker" "start" "-a" "c76c09fcf4719b9b275bd2929bc1bc5841331f56bd5965d8eb0977e0b5d2b552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c76c09fcf4719b9b275bd2929bc1bc5841331f56bd5965d8eb0977e0b5d2b552", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76c09fcf4719b9b275bd2929bc1bc5841331f56bd5965d8eb0977e0b5d2b552", kill_on_drop: false }`
[INFO] [stdout] c76c09fcf4719b9b275bd2929bc1bc5841331f56bd5965d8eb0977e0b5d2b552
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3d34a95cf771aaa10e65aa0b8541955efd71bb2c2ca3295b73d63e361bfcd0d
[INFO] running `Command { std: "docker" "start" "-a" "d3d34a95cf771aaa10e65aa0b8541955efd71bb2c2ca3295b73d63e361bfcd0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking deranged v0.3.8
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking time v0.3.29
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking tracing-appender v0.2.2
[INFO] [stderr]     Checking timer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `x`, `y`, and `z` are never read
[INFO] [stdout]   --> src/lib.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct ExampleObject {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 44 |     x: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 45 |     y: ExampleEnum,
[INFO] [stdout]    |     ^
[INFO] [stdout] 46 |     z: ExampleEnumTwo,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExampleObject` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x`, `y`, and `z` are never read
[INFO] [stdout]   --> src/lib.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub struct ExampleObject {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 44 |     x: f64,
[INFO] [stdout]    |     ^
[INFO] [stdout] 45 |     y: ExampleEnum,
[INFO] [stdout]    |     ^
[INFO] [stdout] 46 |     z: ExampleEnumTwo,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExampleObject` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.00s
[INFO] running `Command { std: "docker" "inspect" "d3d34a95cf771aaa10e65aa0b8541955efd71bb2c2ca3295b73d63e361bfcd0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d34a95cf771aaa10e65aa0b8541955efd71bb2c2ca3295b73d63e361bfcd0d", kill_on_drop: false }`
[INFO] [stdout] d3d34a95cf771aaa10e65aa0b8541955efd71bb2c2ca3295b73d63e361bfcd0d