[INFO] fetching crate vixen 0.0.0...
[INFO] checking vixen-0.0.0 against try#f393e920342ceb7ad171c4c84886bae0c180965d for pr-149291-2
[INFO] extracting crate vixen 0.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate vixen 0.0.0
[INFO] finished tweaking crates.io crate vixen 0.0.0
[INFO] tweaked toml for crates.io crate vixen 0.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vixen 0.0.0 on toolchain f393e920342ceb7ad171c4c84886bae0c180965d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f393e920342ceb7ad171c4c84886bae0c180965d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vixen 0.0.0 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" "+f393e920342ceb7ad171c4c84886bae0c180965d" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f393e920342ceb7ad171c4c84886bae0c180965d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4670d3a6b620daf9202a562344d9d5ce18e687a81ce568b92ab8071616fdb687
[INFO] running `Command { std: "docker" "start" "-a" "4670d3a6b620daf9202a562344d9d5ce18e687a81ce568b92ab8071616fdb687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4670d3a6b620daf9202a562344d9d5ce18e687a81ce568b92ab8071616fdb687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4670d3a6b620daf9202a562344d9d5ce18e687a81ce568b92ab8071616fdb687", kill_on_drop: false }`
[INFO] [stdout] 4670d3a6b620daf9202a562344d9d5ce18e687a81ce568b92ab8071616fdb687
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+f393e920342ceb7ad171c4c84886bae0c180965d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9141ed6ca6ab176baf3525122a1de3d2cbe22460cac420de51fef3abf0a89f3e
[INFO] running `Command { std: "docker" "start" "-a" "9141ed6ca6ab176baf3525122a1de3d2cbe22460cac420de51fef3abf0a89f3e", kill_on_drop: false }`
[INFO] [stderr]     Checking vixen v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Add`, `Jump`, and `JumpIfZero` are never constructed
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | enum Opcode {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout]  7 |     LoadConst = 0x01,
[INFO] [stdout]  8 |     Add = 0x02,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Jump = 0x07,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     JumpIfZero = 0x08,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opcode` has derived impls for the traits `Clone` and `Debug`, but these are 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: associated functions `add`, `jump`, and `jump_if_zero` are never used
[INFO] [stdout]    --> src/main.rs:42:8
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Instruction {
[INFO] [stdout]     | ---------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn add(dest: u8, src1: u8, src2: u8) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     fn jump(target: usize) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn jump_if_zero(src: u8, target: usize) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Add`, `Jump`, and `JumpIfZero` are never constructed
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | enum Opcode {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout]  7 |     LoadConst = 0x01,
[INFO] [stdout]  8 |     Add = 0x02,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     Jump = 0x07,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 14 |     JumpIfZero = 0x08,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opcode` has derived impls for the traits `Clone` and `Debug`, but these are 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: associated functions `add`, `jump`, and `jump_if_zero` are never used
[INFO] [stdout]    --> src/main.rs:42:8
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Instruction {
[INFO] [stdout]     | ---------------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn add(dest: u8, src1: u8, src2: u8) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     fn jump(target: usize) -> Self {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn jump_if_zero(src: u8, target: usize) -> Self {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "9141ed6ca6ab176baf3525122a1de3d2cbe22460cac420de51fef3abf0a89f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9141ed6ca6ab176baf3525122a1de3d2cbe22460cac420de51fef3abf0a89f3e", kill_on_drop: false }`
[INFO] [stdout] 9141ed6ca6ab176baf3525122a1de3d2cbe22460cac420de51fef3abf0a89f3e
