[INFO] cloning repository https://github.com/daoyi-rust-study/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daoyi-rust-study/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaoyi-rust-study%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaoyi-rust-study%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8289e60fe1c1c6d949f41c38d4ae685d8c0b9c68
[INFO] checking daoyi-rust-study/rust-by-example against try#c0a9760914bada211f4924ee16d41ae1a366d2ba for pr-148545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaoyi-rust-study%2Frust-by-example" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/daoyi-rust-study/rust-by-example
[INFO] finished tweaking git repo https://github.com/daoyi-rust-study/rust-by-example
[INFO] tweaked toml for git repo https://github.com/daoyi-rust-study/rust-by-example written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/daoyi-rust-study/rust-by-example on toolchain c0a9760914bada211f4924ee16d41ae1a366d2ba
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c0a9760914bada211f4924ee16d41ae1a366d2ba" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/daoyi-rust-study/rust-by-example 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" "+c0a9760914bada211f4924ee16d41ae1a366d2ba" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c0a9760914bada211f4924ee16d41ae1a366d2ba" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c3c552b22f0c29ac860a37e74554a7fcb2701e9dcf51088ca05ef0892121605
[INFO] running `Command { std: "docker" "start" "-a" "9c3c552b22f0c29ac860a37e74554a7fcb2701e9dcf51088ca05ef0892121605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c3c552b22f0c29ac860a37e74554a7fcb2701e9dcf51088ca05ef0892121605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3c552b22f0c29ac860a37e74554a7fcb2701e9dcf51088ca05ef0892121605", kill_on_drop: false }`
[INFO] [stdout] 9c3c552b22f0c29ac860a37e74554a7fcb2701e9dcf51088ca05ef0892121605
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c0a9760914bada211f4924ee16d41ae1a366d2ba" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 637fcf9ee7770407e899083df82d422c3dc2c1cce12f7306cb4cd1f420279bbc
[INFO] running `Command { std: "docker" "start" "-a" "637fcf9ee7770407e899083df82d422c3dc2c1cce12f7306cb4cd1f420279bbc", kill_on_drop: false }`
[INFO] [stderr]     Checking print-display v0.1.0 (/opt/rustwide/workdir/print-display)
[INFO] [stderr]     Checking comment v0.1.0 (/opt/rustwide/workdir/comment)
[INFO] [stderr]     Checking primitives v0.1.0 (/opt/rustwide/workdir/primitives)
[INFO] [stderr]     Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking primitives-array v0.1.0 (/opt/rustwide/workdir/primitives-array)
[INFO] [stderr]     Checking print-debug v0.1.0 (/opt/rustwide/workdir/print-debug)
[INFO] [stderr]     Checking primitives-turples v0.1.0 (/opt/rustwide/workdir/primitives-turples)
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir/hello-world)
[INFO] [stderr]     Checking testcase-list v0.1.0 (/opt/rustwide/workdir/testcase-list)
[INFO] [stderr]     Checking hello-print v0.1.0 (/opt/rustwide/workdir/hello-print)
[INFO] [stderr]     Checking hello-print-fmt v0.1.0 (/opt/rustwide/workdir/hello-print-fmt)
[INFO] [stderr]     Checking custom-types-structs v0.1.0 (/opt/rustwide/workdir/custom-types-structs)
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> print-debug/src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Person<'a> {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 30 |     name: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     age: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> print-debug/src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | struct Person<'a> {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 30 |     name: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 31 |     age: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 0.18s
[INFO] running `Command { std: "docker" "inspect" "637fcf9ee7770407e899083df82d422c3dc2c1cce12f7306cb4cd1f420279bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "637fcf9ee7770407e899083df82d422c3dc2c1cce12f7306cb4cd1f420279bbc", kill_on_drop: false }`
[INFO] [stdout] 637fcf9ee7770407e899083df82d422c3dc2c1cce12f7306cb4cd1f420279bbc