[INFO] cloning repository https://github.com/masuke5/rcc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/masuke5/rcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Frcc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Frcc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c40a6779dcd7c88563edf7e0aae538b03204a64a
[INFO] checking masuke5/rcc against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Frcc" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masuke5/rcc on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masuke5/rcc
[INFO] finished tweaking git repo https://github.com/masuke5/rcc
[INFO] tweaked toml for git repo https://github.com/masuke5/rcc written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/masuke5/rcc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b6a2e820b6fb6d7b632041862c1380c67efc27ecf05f1fb5fc5f1c217991cb9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b6a2e820b6fb6d7b632041862c1380c67efc27ecf05f1fb5fc5f1c217991cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b6a2e820b6fb6d7b632041862c1380c67efc27ecf05f1fb5fc5f1c217991cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b6a2e820b6fb6d7b632041862c1380c67efc27ecf05f1fb5fc5f1c217991cb9", kill_on_drop: false }`
[INFO] [stdout] 3b6a2e820b6fb6d7b632041862c1380c67efc27ecf05f1fb5fc5f1c217991cb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93bce8226b54c5531bf8f79b5bdd120c6a480b0ff7f3c1af82203ec6fe0c708a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "93bce8226b54c5531bf8f79b5bdd120c6a480b0ff7f3c1af82203ec6fe0c708a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking cgmath v0.16.1
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking rcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `pop_xmm`
[INFO] [stdout]    --> src/gen.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn pop_xmm(&mut self, reg: &'static str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns, bind_by_move_pattern_guards)]
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop_xmm`
[INFO] [stdout]    --> src/gen.rs:152:8
[INFO] [stdout]     |
[INFO] [stdout] 152 |     fn pop_xmm(&mut self, reg: &'static str) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns, bind_by_move_pattern_guards)]
[INFO] [stdout]   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/sema.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 | /             mem::replace(expr, Expr {
[INFO] [stdout] 77 | |                 kind: ExprKind::Literal(Literal::Number(inner_expr.ty().get_size() as i64)),
[INFO] [stdout] 78 | |                 ty: Some(Type::Int),
[INFO] [stdout] 79 | |                 span: inner_expr.span.clone(),
[INFO] [stdout] 80 | |             });
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/sema.rs:76:13
[INFO] [stdout]    |
[INFO] [stdout] 76 | /             mem::replace(expr, Expr {
[INFO] [stdout] 77 | |                 kind: ExprKind::Literal(Literal::Number(inner_expr.ty().get_size() as i64)),
[INFO] [stdout] 78 | |                 ty: Some(Type::Int),
[INFO] [stdout] 79 | |                 span: inner_expr.span.clone(),
[INFO] [stdout] 80 | |             });
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.63s
[INFO] running `Command { std: "docker" "inspect" "93bce8226b54c5531bf8f79b5bdd120c6a480b0ff7f3c1af82203ec6fe0c708a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93bce8226b54c5531bf8f79b5bdd120c6a480b0ff7f3c1af82203ec6fe0c708a", kill_on_drop: false }`
[INFO] [stdout] 93bce8226b54c5531bf8f79b5bdd120c6a480b0ff7f3c1af82203ec6fe0c708a