[INFO] cloning repository https://github.com/click-lang/click
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/click-lang/click" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclick-lang%2Fclick", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclick-lang%2Fclick'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad3ff86dae8e2d279fd84b024be14ea6eda8c422
[INFO] checking click-lang/click against try#9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840 for pr-149518
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclick-lang%2Fclick" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/click-lang/click
[INFO] finished tweaking git repo https://github.com/click-lang/click
[INFO] tweaked toml for git repo https://github.com/click-lang/click written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/click-lang/click on toolchain 9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/click-lang/click 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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 132b98c7878f3751d54fb4e5bc2601d4c9ac983fc39a1ec113cf3ab5f1a779b2
[INFO] running `Command { std: "docker" "start" "-a" "132b98c7878f3751d54fb4e5bc2601d4c9ac983fc39a1ec113cf3ab5f1a779b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "132b98c7878f3751d54fb4e5bc2601d4c9ac983fc39a1ec113cf3ab5f1a779b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "132b98c7878f3751d54fb4e5bc2601d4c9ac983fc39a1ec113cf3ab5f1a779b2", kill_on_drop: false }`
[INFO] [stdout] 132b98c7878f3751d54fb4e5bc2601d4c9ac983fc39a1ec113cf3ab5f1a779b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+9b8307bcb9d1de8ffc7e1c81c48efffdb24ee840" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 462db290128367ebe28d04f4aba542f6445997ef8ad83c5b7a98161ab2c34caf
[INFO] running `Command { std: "docker" "start" "-a" "462db290128367ebe28d04f4aba542f6445997ef8ad83c5b7a98161ab2c34caf", kill_on_drop: false }`
[INFO] [stderr]     Checking click v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition: `mul`
[INFO] [stdout]   --> src/vm/main.rs:93:14
[INFO] [stdout]    |
[INFO] [stdout] 93 | macro_rules! mul {
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `div`
[INFO] [stdout]    --> src/vm/main.rs:103:14
[INFO] [stdout]     |
[INFO] [stdout] 103 | macro_rules! div {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `mul`
[INFO] [stdout]   --> src/vm/main.rs:93:14
[INFO] [stdout]    |
[INFO] [stdout] 93 | macro_rules! mul {
[INFO] [stdout]    |              ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition: `div`
[INFO] [stdout]    --> src/vm/main.rs:103:14
[INFO] [stdout]     |
[INFO] [stdout] 103 | macro_rules! div {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/main.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut ops = vec![
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/main.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut ops = vec![
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/main.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let mut exitCode = 0;
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/vm/main.rs:160:9
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let mut exitCode = 0;
[INFO] [stdout]     |         ----^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/vm/main.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     T(Type),
[INFO] [stdout]   |     - ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Code` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     T(Type),
[INFO] [stdout] 5 +     T(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Mul`, `Div`, and `Delete` are never constructed
[INFO] [stdout]   --> src/vm/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Op {
[INFO] [stdout]    |      -- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Mul(Type, Type, Type),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     Div(Type, Type, Type),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Delete(Type),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Op` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/vm/main.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 |     T(Type),
[INFO] [stdout]   |     - ^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Code` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     T(Type),
[INFO] [stdout] 5 +     T(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Func` and `Let` are never constructed
[INFO] [stdout]   --> src/vm/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Label<'a> {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 22 |     OrElse(Type),
[INFO] [stdout] 23 |     Func(&'a str),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Let(&'a str, Type),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Label` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Mul`, `Div`, and `Delete` are never constructed
[INFO] [stdout]   --> src/vm/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum Op {
[INFO] [stdout]    |      -- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 12 |     Mul(Type, Type, Type),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     Div(Type, Type, Type),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     Delete(Type),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Op` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Char` is never constructed
[INFO] [stdout]   --> src/vm/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Type {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Char(char),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_code` is never used
[INFO] [stdout]   --> src/vm/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | trait ToEnum {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] 49 |     fn to_type(&self) -> Type;
[INFO] [stdout] 50 |     fn to_code(&self) -> Code {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Func` and `Let` are never constructed
[INFO] [stdout]   --> src/vm/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | enum Label<'a> {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] 22 |     OrElse(Type),
[INFO] [stdout] 23 |     Func(&'a str),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     Let(&'a str, Type),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Label` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Char` is never constructed
[INFO] [stdout]   --> src/vm/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | enum Type {
[INFO] [stdout]    |      ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Char(char),
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_code` is never used
[INFO] [stdout]   --> src/vm/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | trait ToEnum {
[INFO] [stdout]    |       ------ method in this trait
[INFO] [stdout] 49 |     fn to_type(&self) -> Type;
[INFO] [stdout] 50 |     fn to_code(&self) -> Code {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/vm/main.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn to_code(&self) -> Code {
[INFO] [stdout]    |                ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn to_code(&self) -> Code<'_> {
[INFO] [stdout]    |                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/vm/main.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn to_code(&self) -> Code {
[INFO] [stdout]    |                ^^^^^     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn to_code(&self) -> Code<'_> {
[INFO] [stdout]    |                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `exitCode` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let exitCode = exec(ops);
[INFO] [stdout]     |         ^^^^^^^^ help: convert the identifier to snake case: `exit_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `exitCode` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |     let exitCode = exec(ops);
[INFO] [stdout]     |         ^^^^^^^^ help: convert the identifier to snake case: `exit_code`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ifStack` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut ifStack = 0;
[INFO] [stdout]     |             ^^^^^^^ help: convert the identifier to snake case: `if_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ifStack` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:159:13
[INFO] [stdout]     |
[INFO] [stdout] 159 |     let mut ifStack = 0;
[INFO] [stdout]     |             ^^^^^^^ help: convert the identifier to snake case: `if_stack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `exitCode` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let mut exitCode = 0;
[INFO] [stdout]     |             ^^^^^^^^ help: convert the identifier to snake case: `exit_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `exitCode` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let mut exitCode = 0;
[INFO] [stdout]     |             ^^^^^^^^ help: convert the identifier to snake case: `exit_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `orElse` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:180:28
[INFO] [stdout]     |
[INFO] [stdout] 180 |             O(If(cond, Mem(orElse))) => {
[INFO] [stdout]     |                            ^^^^^^ help: convert the identifier to snake case: `or_else`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `orElse` should have a snake case name
[INFO] [stdout]    --> src/vm/main.rs:180:28
[INFO] [stdout]     |
[INFO] [stdout] 180 |             O(If(cond, Mem(orElse))) => {
[INFO] [stdout]     |                            ^^^^^^ help: convert the identifier to snake case: `or_else`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "462db290128367ebe28d04f4aba542f6445997ef8ad83c5b7a98161ab2c34caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "462db290128367ebe28d04f4aba542f6445997ef8ad83c5b7a98161ab2c34caf", kill_on_drop: false }`
[INFO] [stdout] 462db290128367ebe28d04f4aba542f6445997ef8ad83c5b7a98161ab2c34caf
