[INFO] cloning repository https://github.com/bollu/sunnyside
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bollu/sunnyside" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbollu%2Fsunnyside", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbollu%2Fsunnyside'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 344bdb82a426958de3876c223be21a2e4fb2bbaa
[INFO] checking bollu/sunnyside against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbollu%2Fsunnyside" "/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/bollu/sunnyside
[INFO] finished tweaking git repo https://github.com/bollu/sunnyside
[INFO] tweaked toml for git repo https://github.com/bollu/sunnyside written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bollu/sunnyside on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bollu/sunnyside 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d768a3922cb8022d2459ca6305dcef85a237c1b9290828a7617ba44e220d7134
[INFO] running `Command { std: "docker" "start" "-a" "d768a3922cb8022d2459ca6305dcef85a237c1b9290828a7617ba44e220d7134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d768a3922cb8022d2459ca6305dcef85a237c1b9290828a7617ba44e220d7134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d768a3922cb8022d2459ca6305dcef85a237c1b9290828a7617ba44e220d7134", kill_on_drop: false }`
[INFO] [stdout] d768a3922cb8022d2459ca6305dcef85a237c1b9290828a7617ba44e220d7134
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3e932445d9b8cfc3128ea551f4a0cbbaf4fade221902a9a86cd0e408200a6ab
[INFO] running `Command { std: "docker" "start" "-a" "a3e932445d9b8cfc3128ea551f4a0cbbaf4fade221902a9a86cd0e408200a6ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking symbolic_expressions v5.0.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking egg v0.6.0
[INFO] [stderr]     Checking ordered-float v2.0.1
[INFO] [stderr]     Checking sunnyside v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `egg::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use egg::*;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `egg::*`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use egg::*;
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `prove_something` is never used
[INFO] [stdout]   --> tests/delight.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn prove_something(name: &str, start: &str, rewrites: &[Rewrite], goals: &[&str]) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<egg::Symbol, Infallible>
[INFO] [stdout]   --> tests/prop.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / define_language! {
[INFO] [stdout]  6 | |     enum Prop {
[INFO] [stdout]  7 | |         Bool(bool),
[INFO] [stdout]  8 | |         "&" = And([Id; 2]),
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::__define_language` which comes from the expansion of the macro `define_language` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<egg::Symbol, Infallible>
[INFO] [stdout]   --> tests/prop.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / define_language! {
[INFO] [stdout]  6 | |     enum Prop {
[INFO] [stdout]  7 | |         Bool(bool),
[INFO] [stdout]  8 | |         "&" = And([Id; 2]),
[INFO] [stdout] ...  |
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__define_language` which comes from the expansion of the macro `define_language` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<egg::Symbol, Infallible>
[INFO] [stdout]   --> tests/delight.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / define_language! {
[INFO] [stdout]  6 | |     enum Prop {
[INFO] [stdout]  7 | |         Int(i64),
[INFO] [stdout]  8 | |         "&" = And([Id; 2]),
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::__define_language` which comes from the expansion of the macro `define_language` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<egg::Symbol, Infallible>
[INFO] [stdout]   --> tests/delight.rs:5:1
[INFO] [stdout]    |
[INFO] [stdout]  5 | / define_language! {
[INFO] [stdout]  6 | |     enum Prop {
[INFO] [stdout]  7 | |         Int(i64),
[INFO] [stdout]  8 | |         "&" = And([Id; 2]),
[INFO] [stdout] ...  |
[INFO] [stdout] 16 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__define_language` which comes from the expansion of the macro `define_language` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sunnyside` (test "prop") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `sunnyside` (test "delight") due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<Symbol, Infallible>
[INFO] [stdout]   --> tests/lambda.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout]  6 | / define_language! {
[INFO] [stdout]  7 | |     enum Lambda {
[INFO] [stdout]  8 | |         Bool(bool),
[INFO] [stdout]  9 | |         Num(i32),
[INFO] [stdout] ...  |
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `$crate::__define_language` which comes from the expansion of the macro `define_language` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Symbol, Infallible>
[INFO] [stdout]   --> tests/lambda.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout]  6 | / define_language! {
[INFO] [stdout]  7 | |     enum Lambda {
[INFO] [stdout]  8 | |         Bool(bool),
[INFO] [stdout]  9 | |         Num(i32),
[INFO] [stdout] ...  |
[INFO] [stdout] 25 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::__define_language` which comes from the expansion of the macro `define_language` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sunnyside` (test "lambda") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a3e932445d9b8cfc3128ea551f4a0cbbaf4fade221902a9a86cd0e408200a6ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3e932445d9b8cfc3128ea551f4a0cbbaf4fade221902a9a86cd0e408200a6ab", kill_on_drop: false }`
[INFO] [stdout] a3e932445d9b8cfc3128ea551f4a0cbbaf4fade221902a9a86cd0e408200a6ab