[INFO] cloning repository https://github.com/pengowen123/blocks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pengowen123/blocks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpengowen123%2Fblocks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpengowen123%2Fblocks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66adc275ef39c2b6b6e375e9df671a4ab789f57a
[INFO] checking pengowen123/blocks against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpengowen123%2Fblocks" "/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/pengowen123/blocks 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/pengowen123/blocks
[INFO] finished tweaking git repo https://github.com/pengowen123/blocks
[INFO] tweaked toml for git repo https://github.com/pengowen123/blocks written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/pengowen123/blocks 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-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", 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] 93be8c6f2bcfcceed246e76f1421626d64ccb5e6883e9b1383f87ad62c57d581
[INFO] running `Command { std: "docker" "start" "-a" "93be8c6f2bcfcceed246e76f1421626d64ccb5e6883e9b1383f87ad62c57d581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "93be8c6f2bcfcceed246e76f1421626d64ccb5e6883e9b1383f87ad62c57d581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93be8c6f2bcfcceed246e76f1421626d64ccb5e6883e9b1383f87ad62c57d581", kill_on_drop: false }`
[INFO] [stdout] 93be8c6f2bcfcceed246e76f1421626d64ccb5e6883e9b1383f87ad62c57d581
[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: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] d8f659d3668e00d301c42e582f9cbb118f835cc724e78b719c5986a54ea1c0bb
[INFO] running `Command { std: "docker" "start" "-a" "d8f659d3668e00d301c42e582f9cbb118f835cc724e78b719c5986a54ea1c0bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking blocks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `remove_dead_temp` in this scope
[INFO] [stdout]   --> src/tests/ir.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         remove_dead_temp(&mut ir);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `remove_dead_code`
[INFO] [stdout]    | 
[INFO] [stdout]   ::: src/ir/optimizer.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub fn remove_dead_code(ir: &mut Vec<Ir>) {
[INFO] [stdout]    | ----------------------------------------- similarly named function `remove_dead_code` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ir`
[INFO] [stdout]  --> src/ir/optimizer.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn opt_0(ir: &mut Vec<Ir>) {
[INFO] [stdout]   |              ^^ help: if this is intentional, prefix it with an underscore: `_ir`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ir`
[INFO] [stdout]  --> src/ir/optimizer.rs:8:25
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn remove_dead_code(ir: &mut Vec<Ir>) {
[INFO] [stdout]   |                         ^^ help: if this is intentional, prefix it with an underscore: `_ir`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `blocks`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/utils.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     unsafe {
[INFO] [stdout]     |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_code_size`
[INFO] [stdout]   --> src/compile_utils.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn get_code_size(ir: &[Ir]) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `opt_0`
[INFO] [stdout]  --> src/ir/optimizer.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn opt_0(ir: &mut Vec<Ir>) {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `question_mark` has been stable since 1.13.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(question_mark)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d8f659d3668e00d301c42e582f9cbb118f835cc724e78b719c5986a54ea1c0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f659d3668e00d301c42e582f9cbb118f835cc724e78b719c5986a54ea1c0bb", kill_on_drop: false }`
[INFO] [stdout] d8f659d3668e00d301c42e582f9cbb118f835cc724e78b719c5986a54ea1c0bb