[INFO] cloning repository https://github.com/iamwwc/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/iamwwc/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4eb6244de3c32c62ef24c84bb5cb3eb5819b5d78
[INFO] checking iamwwc/rust-by-example against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamwwc%2Frust-by-example" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iamwwc/rust-by-example on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iamwwc/rust-by-example
[INFO] finished tweaking git repo https://github.com/iamwwc/rust-by-example
[INFO] tweaked toml for git repo https://github.com/iamwwc/rust-by-example written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iamwwc/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" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cecdd0b4c06acc12409a1db21b4c8ea5a996b42693ddcca1b038b0c91740f1b6
[INFO] running `Command { std: "docker" "start" "-a" "cecdd0b4c06acc12409a1db21b4c8ea5a996b42693ddcca1b038b0c91740f1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cecdd0b4c06acc12409a1db21b4c8ea5a996b42693ddcca1b038b0c91740f1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cecdd0b4c06acc12409a1db21b4c8ea5a996b42693ddcca1b038b0c91740f1b6", kill_on_drop: false }`
[INFO] [stdout] cecdd0b4c06acc12409a1db21b4c8ea5a996b42693ddcca1b038b0c91740f1b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb318ae45070a1aa0869c6cde4825d425cd72fd9c858bd2acc98169ff3d715b9
[INFO] running `Command { std: "docker" "start" "-a" "eb318ae45070a1aa0869c6cde4825d425cd72fd9c858bd2acc98169ff3d715b9", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-by-example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Bool` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureBool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Structure_Integer` should have an upper camel case name
[INFO] [stdout]   --> src/bin/format/main.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StructureInteger`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct Structure(bool);
[INFO] [stdout]    |            --------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, 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: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            -------------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ----------------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct UnPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     struct DebugPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct Structure(i32);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     struct Deep(Structure);
[INFO] [stdout]    |            ---- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/bin/format/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     struct Person<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 46 |         name: &'a str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 47 |         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] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct Structure(bool);
[INFO] [stdout]    |            --------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, 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: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     struct Structure_Bool(bool);
[INFO] [stdout]    |            -------------- ^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:24:30
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct Structure_Integer(i32);
[INFO] [stdout]    |            ----------------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     struct UnPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DebugPrintable` is never constructed
[INFO] [stdout]   --> src/bin/format/main.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     struct DebugPrintable(i32);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:35:22
[INFO] [stdout]    |
[INFO] [stdout] 35 |     struct Structure(i32);
[INFO] [stdout]    |            --------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Structure` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/bin/format/main.rs:37:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |     struct Deep(Structure);
[INFO] [stdout]    |            ---- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Deep` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/bin/format/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     struct Person<'a> {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 46 |         name: &'a str,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 47 |         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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "eb318ae45070a1aa0869c6cde4825d425cd72fd9c858bd2acc98169ff3d715b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb318ae45070a1aa0869c6cde4825d425cd72fd9c858bd2acc98169ff3d715b9", kill_on_drop: false }`
[INFO] [stdout] eb318ae45070a1aa0869c6cde4825d425cd72fd9c858bd2acc98169ff3d715b9
