[INFO] cloning repository https://github.com/peterdelevoryas/cu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peterdelevoryas/cu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterdelevoryas%2Fcu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterdelevoryas%2Fcu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88b2cd5886143d88f0137d03c7b3b4b60dac2f97
[INFO] checking peterdelevoryas/cu against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterdelevoryas%2Fcu" "/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/peterdelevoryas/cu 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/peterdelevoryas/cu
[INFO] finished tweaking git repo https://github.com/peterdelevoryas/cu
[INFO] tweaked toml for git repo https://github.com/peterdelevoryas/cu written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/peterdelevoryas/cu 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] [stderr]     Updating git repository `https://github.com/peterdelevoryas/llvm-sys`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.73
[INFO] [stderr]   Downloaded syn v1.0.35
[INFO] [stderr]   Downloaded filecheck v0.4.0
[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] c722df4ca0647d64cd7bd1bcfd571b12761d1fc727dbd4b59c4e890682fb43d3
[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" "c722df4ca0647d64cd7bd1bcfd571b12761d1fc727dbd4b59c4e890682fb43d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c722df4ca0647d64cd7bd1bcfd571b12761d1fc727dbd4b59c4e890682fb43d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c722df4ca0647d64cd7bd1bcfd571b12761d1fc727dbd4b59c4e890682fb43d3", kill_on_drop: false }`
[INFO] [stdout] c722df4ca0647d64cd7bd1bcfd571b12761d1fc727dbd4b59c4e890682fb43d3
[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] [stdout] 07341d5d3238ba71a4a1804d4d12b6d1d6251786e74dbb66389460307f88aac2
[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" "07341d5d3238ba71a4a1804d4d12b6d1d6251786e74dbb66389460307f88aac2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling llvm-sys v0.1.0 (https://github.com/peterdelevoryas/llvm-sys#154f03d6)
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking mylang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] warning: unused variable: `elems`
[INFO] [stdout]    --> src/ir.rs:172:36
[INFO] [stdout]     |
[INFO] [stdout] 172 |             syntax::Pattern::Tuple(elems) => unimplemented!(),
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_elems`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elems`
[INFO] [stdout]    --> src/ir.rs:173:49
[INFO] [stdout]     |
[INFO] [stdout] 173 |             &syntax::Pattern::EnumVariant(name, ref elems) => {
[INFO] [stdout]     |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elems`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]     --> src/ir.rs:1157:8
[INFO] [stdout]      |
[INFO] [stdout] 1157 | pub fn print(module: &Module2) {
[INFO] [stdout]      |        ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking filecheck v0.4.0
[INFO] [stdout] warning: unused variable: `elems`
[INFO] [stdout]    --> src/ir.rs:172:36
[INFO] [stdout]     |
[INFO] [stdout] 172 |             syntax::Pattern::Tuple(elems) => unimplemented!(),
[INFO] [stdout]     |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_elems`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elems`
[INFO] [stdout]    --> src/ir.rs:173:49
[INFO] [stdout]     |
[INFO] [stdout] 173 |             &syntax::Pattern::EnumVariant(name, ref elems) => {
[INFO] [stdout]     |                                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elems`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]     --> src/ir.rs:1157:8
[INFO] [stdout]      |
[INFO] [stdout] 1157 | pub fn print(module: &Module2) {
[INFO] [stdout]      |        ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.33s
[INFO] running `Command { std: "docker" "inspect" "07341d5d3238ba71a4a1804d4d12b6d1d6251786e74dbb66389460307f88aac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07341d5d3238ba71a4a1804d4d12b6d1d6251786e74dbb66389460307f88aac2", kill_on_drop: false }`
[INFO] [stdout] 07341d5d3238ba71a4a1804d4d12b6d1d6251786e74dbb66389460307f88aac2