[INFO] cloning repository https://github.com/caoimhebyrne/CaoRVM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/caoimhebyrne/CaoRVM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaoimhebyrne%2FCaoRVM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaoimhebyrne%2FCaoRVM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 38d0fd9a14bc8d193b44fe3195f8bb527ce77304
[INFO] checking caoimhebyrne/CaoRVM/38d0fd9a14bc8d193b44fe3195f8bb527ce77304 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcaoimhebyrne%2FCaoRVM" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/caoimhebyrne/CaoRVM on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/caoimhebyrne/CaoRVM
[INFO] finished tweaking git repo https://github.com/caoimhebyrne/CaoRVM
[INFO] tweaked toml for git repo https://github.com/caoimhebyrne/CaoRVM written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/caoimhebyrne/CaoRVM 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1c5bd4aa4406ced979693c19399479cfd5a43855215d9104fff4e530135aed5
[INFO] running `Command { std: "docker" "start" "-a" "b1c5bd4aa4406ced979693c19399479cfd5a43855215d9104fff4e530135aed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1c5bd4aa4406ced979693c19399479cfd5a43855215d9104fff4e530135aed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c5bd4aa4406ced979693c19399479cfd5a43855215d9104fff4e530135aed5", kill_on_drop: false }`
[INFO] [stdout] b1c5bd4aa4406ced979693c19399479cfd5a43855215d9104fff4e530135aed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c99d07827584ecfdfe7e5f8713767709b51619c3c3682bc4fb99ff07d849d624
[INFO] running `Command { std: "docker" "start" "-a" "c99d07827584ecfdfe7e5f8713767709b51619c3c3682bc4fb99ff07d849d624", kill_on_drop: false }`
[INFO] [stderr]     Checking jvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `reference_type`, `class`, and `name_and_type` are never read
[INFO] [stdout]   --> src/class_parser/constant_pool.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub struct ReferenceConstant {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 82 |     reference_type: ReferenceType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     class: ConstantPoolReference,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 85 |     name_and_type: ConstantPoolReference,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReferenceConstant` 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 `name` is never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct ClassConstant {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 113 |     name: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ClassConstant` 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 `descriptor` are never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct NameAndTypeConstant {
[INFO] [stdout]     |            ------------------- fields in this struct
[INFO] [stdout] 131 |     name: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 132 |     descriptor: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NameAndTypeConstant` 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 `data` is never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct UTF8Constant {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 153 |     data: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UTF8Constant` 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 `string` is never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct StringConstant {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 172 |     string: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StringConstant` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reference_type`, `class`, and `name_and_type` are never read
[INFO] [stdout]   --> src/class_parser/constant_pool.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | pub struct ReferenceConstant {
[INFO] [stdout]    |            ----------------- fields in this struct
[INFO] [stdout] 82 |     reference_type: ReferenceType,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 83 |
[INFO] [stdout] 84 |     class: ConstantPoolReference,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 85 |     name_and_type: ConstantPoolReference,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReferenceConstant` 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 `name` is never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub struct ClassConstant {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 113 |     name: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ClassConstant` 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 `descriptor` are never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct NameAndTypeConstant {
[INFO] [stdout]     |            ------------------- fields in this struct
[INFO] [stdout] 131 |     name: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 132 |     descriptor: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NameAndTypeConstant` 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 `data` is never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub struct UTF8Constant {
[INFO] [stdout]     |            ------------ field in this struct
[INFO] [stdout] 153 |     data: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `UTF8Constant` 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 `string` is never read
[INFO] [stdout]    --> src/class_parser/constant_pool.rs:172:5
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub struct StringConstant {
[INFO] [stdout]     |            -------------- field in this struct
[INFO] [stdout] 172 |     string: ConstantPoolReference,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StringConstant` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "c99d07827584ecfdfe7e5f8713767709b51619c3c3682bc4fb99ff07d849d624", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c99d07827584ecfdfe7e5f8713767709b51619c3c3682bc4fb99ff07d849d624", kill_on_drop: false }`
[INFO] [stdout] c99d07827584ecfdfe7e5f8713767709b51619c3c3682bc4fb99ff07d849d624