[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 try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasuke5%2Frcc" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masuke5/rcc on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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-9/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4cfc1fe3b48efffcfee428fc09fa6b318e0f889b09fe96322f393760916582c5
[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" "4cfc1fe3b48efffcfee428fc09fa6b318e0f889b09fe96322f393760916582c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4cfc1fe3b48efffcfee428fc09fa6b318e0f889b09fe96322f393760916582c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfc1fe3b48efffcfee428fc09fa6b318e0f889b09fe96322f393760916582c5", kill_on_drop: false }`
[INFO] [stdout] 4cfc1fe3b48efffcfee428fc09fa6b318e0f889b09fe96322f393760916582c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 327aaa29fcd000a2c119ac0721e6ab403d80b2cd1abc87946cd7bbda4095c55c
[INFO] running `Command { std: "docker" "start" "-a" "327aaa29fcd000a2c119ac0721e6ab403d80b2cd1abc87946cd7bbda4095c55c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.57
[INFO] [stderr]    Compiling winapi v0.3.7
[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: 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: 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: 3 warnings emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.00s
[INFO] running `Command { std: "docker" "inspect" "327aaa29fcd000a2c119ac0721e6ab403d80b2cd1abc87946cd7bbda4095c55c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327aaa29fcd000a2c119ac0721e6ab403d80b2cd1abc87946cd7bbda4095c55c", kill_on_drop: false }`
[INFO] [stdout] 327aaa29fcd000a2c119ac0721e6ab403d80b2cd1abc87946cd7bbda4095c55c