[INFO] cloning repository https://github.com/lebm/lgrbootcamp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lebm/lgrbootcamp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flebm%2Flgrbootcamp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flebm%2Flgrbootcamp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8751500796a93ea1581c69a3d5d17e576f2d5c70
[INFO] checking lebm/lgrbootcamp against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flebm%2Flgrbootcamp" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lebm/lgrbootcamp 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/lebm/lgrbootcamp
[INFO] finished tweaking git repo https://github.com/lebm/lgrbootcamp
[INFO] tweaked toml for git repo https://github.com/lebm/lgrbootcamp written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lebm/lgrbootcamp 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] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d5ffdeabcb5e4f3d249dc9cc0726c621a52f31a5806a9af37770818a95f4b314
[INFO] running `Command { std: "docker" "start" "-a" "d5ffdeabcb5e4f3d249dc9cc0726c621a52f31a5806a9af37770818a95f4b314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5ffdeabcb5e4f3d249dc9cc0726c621a52f31a5806a9af37770818a95f4b314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5ffdeabcb5e4f3d249dc9cc0726c621a52f31a5806a9af37770818a95f4b314", kill_on_drop: false }`
[INFO] [stdout] d5ffdeabcb5e4f3d249dc9cc0726c621a52f31a5806a9af37770818a95f4b314
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 83f3564020231a474709ec8c0fb96c9e6631189c99247253e7113927d604568e
[INFO] running `Command { std: "docker" "start" "-a" "83f3564020231a474709ec8c0fb96c9e6631189c99247253e7113927d604568e", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking my_package v0.1.0 (/opt/rustwide/workdir/my_package)
[INFO] [stderr]     Checking bank v0.1.0 (/opt/rustwide/workdir/bank)
[INFO] [stderr]     Checking borrowing v0.1.0 (/opt/rustwide/workdir/borrowing)
[INFO] [stderr]     Checking multiple_error_types v0.1.0 (/opt/rustwide/workdir/multiple_error_types)
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking datatypes v0.1.0 (/opt/rustwide/workdir/datatypes)
[INFO] [stderr]     Checking tuple_structs v0.1.0 (/opt/rustwide/workdir/tuple_structs)
[INFO] [stderr]     Checking propagation_error v0.1.0 (/opt/rustwide/workdir/propagation_error)
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> tuple_structs/src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct RGB(i32, i32, i32);
[INFO] [stdout]    |            --- ^^^  ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RGB` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct RGB((), (), ());
[INFO] [stdout]    |                ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> tuple_structs/src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct CMYK(i32, i32, i32, i32);
[INFO] [stdout]    |            ---- ^^^  ^^^  ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CMYK` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct CMYK((), (), (), ());
[INFO] [stdout]    |                 ~~  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking matching v0.1.0 (/opt/rustwide/workdir/matching)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking vectors v0.1.0 (/opt/rustwide/workdir/vectors)
[INFO] [stderr]     Checking comments v0.1.0 (/opt/rustwide/workdir/comments)
[INFO] [stderr]     Checking refcell_smart_pointer v0.1.0 (/opt/rustwide/workdir/refcell_smart_pointer)
[INFO] [stderr]     Checking auth_service_file_modules v0.1.0 (/opt/rustwide/workdir/auth_service_file_modules)
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]     Checking recoverable_errors v0.1.0 (/opt/rustwide/workdir/recoverable_errors)
[INFO] [stderr]     Checking enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]     Checking box_smart_pointer v0.1.0 (/opt/rustwide/workdir/box_smart_pointer)
[INFO] [stderr]     Checking auth_service v0.1.0 (/opt/rustwide/workdir/auth_service)
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/variables)
[INFO] [stdout] warning: method `render` is never used
[INFO] [stdout]  --> box_smart_pointer/src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait UIComponent {
[INFO] [stdout]   |       ----------- method in this trait
[INFO] [stdout] 3 |     fn render(&self) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/functions)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking result_and_option v0.1.0 (/opt/rustwide/workdir/result_and_option)
[INFO] [stderr]     Checking control_flow v0.1.0 (/opt/rustwide/workdir/control_flow)
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]     Checking deref_coercion v0.1.0 (/opt/rustwide/workdir/deref_coercion)
[INFO] [stderr]     Checking lifetimes v0.1.0 (/opt/rustwide/workdir/lifetimes)
[INFO] [stderr]     Checking constants_statics v0.1.0 (/opt/rustwide/workdir/constants_statics)
[INFO] [stderr]     Checking ownership2 v0.1.0 (/opt/rustwide/workdir/ownership2)
[INFO] [stdout] warning: method `render` is never used
[INFO] [stdout]  --> box_smart_pointer/src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait UIComponent {
[INFO] [stdout]   |       ----------- method in this trait
[INFO] [stdout] 3 |     fn render(&self) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking option v0.1.0 (/opt/rustwide/workdir/option)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rc_smart_pointer v0.1.0 (/opt/rustwide/workdir/rc_smart_pointer)
[INFO] [stderr]     Checking unrecoverable_errors v0.1.0 (/opt/rustwide/workdir/unrecoverable_errors)
[INFO] [stderr]     Checking structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]     Checking slices v0.1.0 (/opt/rustwide/workdir/slices)
[INFO] [stderr]     Checking impl_blocks v0.1.0 (/opt/rustwide/workdir/impl_blocks)
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/strings)
[INFO] [stderr]     Checking result v0.1.0 (/opt/rustwide/workdir/result)
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking env_logger v0.9.1
[INFO] [stderr]     Checking auth_service_file_modules2 v0.1.0 (/opt/rustwide/workdir/auth_service_file_modules2)
[INFO] [stderr]     Checking errors_examples v0.1.0 (/opt/rustwide/workdir/errors_examples)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example3-custom-errors-1.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example3-custom-errors-1.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2-first-try.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(Box<dyn Error>, String),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2-first-try.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(Box<dyn Error>, String),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.42s
[INFO] running `Command { std: "docker" "inspect" "83f3564020231a474709ec8c0fb96c9e6631189c99247253e7113927d604568e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f3564020231a474709ec8c0fb96c9e6631189c99247253e7113927d604568e", kill_on_drop: false }`
[INFO] [stdout] 83f3564020231a474709ec8c0fb96c9e6631189c99247253e7113927d604568e
[INFO] checking lebm/lgrbootcamp against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flebm%2Flgrbootcamp" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lebm/lgrbootcamp on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lebm/lgrbootcamp
[INFO] finished tweaking git repo https://github.com/lebm/lgrbootcamp
[INFO] tweaked toml for git repo https://github.com/lebm/lgrbootcamp written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lebm/lgrbootcamp 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da5d05787ce60f2747a6baf3a87608a891344956b7eaa522d6ec140a70c93891
[INFO] running `Command { std: "docker" "start" "-a" "da5d05787ce60f2747a6baf3a87608a891344956b7eaa522d6ec140a70c93891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da5d05787ce60f2747a6baf3a87608a891344956b7eaa522d6ec140a70c93891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da5d05787ce60f2747a6baf3a87608a891344956b7eaa522d6ec140a70c93891", kill_on_drop: false }`
[INFO] [stdout] da5d05787ce60f2747a6baf3a87608a891344956b7eaa522d6ec140a70c93891
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fa0eeba7955287a629f6b546d78a791d07d1ca775cf39c3874f84b36aedd037
[INFO] running `Command { std: "docker" "start" "-a" "1fa0eeba7955287a629f6b546d78a791d07d1ca775cf39c3874f84b36aedd037", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking my_package v0.1.0 (/opt/rustwide/workdir/my_package)
[INFO] [stderr]     Checking bank v0.1.0 (/opt/rustwide/workdir/bank)
[INFO] [stderr]     Checking structs v0.1.0 (/opt/rustwide/workdir/structs)
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking constants_statics v0.1.0 (/opt/rustwide/workdir/constants_statics)
[INFO] [stderr]     Checking box_smart_pointer v0.1.0 (/opt/rustwide/workdir/box_smart_pointer)
[INFO] [stdout] warning: method `render` is never used
[INFO] [stdout]  --> box_smart_pointer/src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait UIComponent {
[INFO] [stdout]   |       ----------- method in this trait
[INFO] [stdout] 3 |     fn render(&self) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking comments v0.1.0 (/opt/rustwide/workdir/comments)
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/traits)
[INFO] [stderr]     Checking ownership2 v0.1.0 (/opt/rustwide/workdir/ownership2)
[INFO] [stderr]     Checking option v0.1.0 (/opt/rustwide/workdir/option)
[INFO] [stderr]     Checking refcell_smart_pointer v0.1.0 (/opt/rustwide/workdir/refcell_smart_pointer)
[INFO] [stderr]     Checking slices v0.1.0 (/opt/rustwide/workdir/slices)
[INFO] [stderr]     Checking lifetimes v0.1.0 (/opt/rustwide/workdir/lifetimes)
[INFO] [stderr]     Checking vectors v0.1.0 (/opt/rustwide/workdir/vectors)
[INFO] [stderr]     Checking functions v0.1.0 (/opt/rustwide/workdir/functions)
[INFO] [stderr]     Checking ownership v0.1.0 (/opt/rustwide/workdir/ownership)
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/variables)
[INFO] [stderr]     Checking unrecoverable_errors v0.1.0 (/opt/rustwide/workdir/unrecoverable_errors)
[INFO] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir/generics)
[INFO] [stderr]     Checking impl_blocks v0.1.0 (/opt/rustwide/workdir/impl_blocks)
[INFO] [stderr]     Checking control_flow v0.1.0 (/opt/rustwide/workdir/control_flow)
[INFO] [stderr]     Checking rc_smart_pointer v0.1.0 (/opt/rustwide/workdir/rc_smart_pointer)
[INFO] [stderr]     Checking auth_service v0.1.0 (/opt/rustwide/workdir/auth_service)
[INFO] [stderr]     Checking tuple_structs v0.1.0 (/opt/rustwide/workdir/tuple_structs)
[INFO] [stderr]     Checking datatypes v0.1.0 (/opt/rustwide/workdir/datatypes)
[INFO] [stderr]     Checking enums v0.1.0 (/opt/rustwide/workdir/enums)
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]   --> tuple_structs/src/main.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct RGB(i32, i32, i32);
[INFO] [stdout]    |            --- ^^^  ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RGB` 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] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 10 |     struct RGB((), (), ());
[INFO] [stdout]    |                ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read
[INFO] [stdout]   --> tuple_structs/src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct CMYK(i32, i32, i32, i32);
[INFO] [stdout]    |            ---- ^^^  ^^^  ^^^  ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CMYK` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 12 |     struct CMYK((), (), (), ());
[INFO] [stdout]    |                 ~~  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `render` is never used
[INFO] [stdout]  --> box_smart_pointer/src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | trait UIComponent {
[INFO] [stdout]   |       ----------- method in this trait
[INFO] [stdout] 3 |     fn render(&self) {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking deref_coercion v0.1.0 (/opt/rustwide/workdir/deref_coercion)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking borrowing v0.1.0 (/opt/rustwide/workdir/borrowing)
[INFO] [stderr]     Checking matching v0.1.0 (/opt/rustwide/workdir/matching)
[INFO] [stderr]     Checking auth_service_file_modules v0.1.0 (/opt/rustwide/workdir/auth_service_file_modules)
[INFO] [stderr]     Checking multiple_error_types v0.1.0 (/opt/rustwide/workdir/multiple_error_types)
[INFO] [stderr]     Checking strings v0.1.0 (/opt/rustwide/workdir/strings)
[INFO] [stderr]     Checking propagation_error v0.1.0 (/opt/rustwide/workdir/propagation_error)
[INFO] [stderr]     Checking result v0.1.0 (/opt/rustwide/workdir/result)
[INFO] [stderr]     Checking recoverable_errors v0.1.0 (/opt/rustwide/workdir/recoverable_errors)
[INFO] [stderr]     Checking result_and_option v0.1.0 (/opt/rustwide/workdir/result_and_option)
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking env_logger v0.9.1
[INFO] [stderr]     Checking auth_service_file_modules2 v0.1.0 (/opt/rustwide/workdir/auth_service_file_modules2)
[INFO] [stderr]     Checking errors_examples v0.1.0 (/opt/rustwide/workdir/errors_examples)
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example3-custom-errors-1.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2-first-try.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(Box<dyn Error>, String),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example3-custom-errors-1.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(Box<dyn Error>, String),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> errors_examples/src/bin/example4-custom-errors-2-first-try.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other(String, String),
[INFO] [stdout]    |     ----- ^^^^^^  ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Other((), ()),
[INFO] [stdout]    |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "1fa0eeba7955287a629f6b546d78a791d07d1ca775cf39c3874f84b36aedd037", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa0eeba7955287a629f6b546d78a791d07d1ca775cf39c3874f84b36aedd037", kill_on_drop: false }`
[INFO] [stdout] 1fa0eeba7955287a629f6b546d78a791d07d1ca775cf39c3874f84b36aedd037