[INFO] updating cached repository https://github.com/skreimeyer/stringer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f46c3d8b823d70c4411afe2ebfae75f69b0a2f10
[INFO] testing skreimeyer/stringer against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskreimeyer%2Fstringer" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skreimeyer/stringer on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/skreimeyer/stringer
[INFO] finished tweaking git repo https://github.com/skreimeyer/stringer
[INFO] tweaked toml for git repo https://github.com/skreimeyer/stringer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/skreimeyer/stringer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (proc-macro2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 813eb6d606a8ccadd84d59d7fe0a72b71f47a4cb3f5641394cdd5292cbb55a2e
[INFO] running `"docker" "start" "-a" "813eb6d606a8ccadd84d59d7fe0a72b71f47a4cb3f5641394cdd5292cbb55a2e"`
[INFO] [stderr] warning: dependency (proc-macro2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling stringer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.53s
[INFO] running `"docker" "inspect" "813eb6d606a8ccadd84d59d7fe0a72b71f47a4cb3f5641394cdd5292cbb55a2e"`
[INFO] running `"docker" "rm" "-f" "813eb6d606a8ccadd84d59d7fe0a72b71f47a4cb3f5641394cdd5292cbb55a2e"`
[INFO] [stdout] 813eb6d606a8ccadd84d59d7fe0a72b71f47a4cb3f5641394cdd5292cbb55a2e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3f8709d3e388569c9c8788ec6537b1cab14d168a7ef967a56bed8fb32a6e2cdc
[INFO] running `"docker" "start" "-a" "3f8709d3e388569c9c8788ec6537b1cab14d168a7ef967a56bed8fb32a6e2cdc"`
[INFO] [stderr] warning: dependency (proc-macro2) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling stringer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `::`, `;`, or `as`, found keyword `fn`
[INFO] [stderr]   --> examples/blockcomment.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | use std::f64::consts::PI
[INFO] [stderr]    |                         - expected one of `::`, `;`, or `as`
[INFO] [stderr] 9  | 
[INFO] [stderr] 10 | fn main() {
[INFO] [stderr]    | ^^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `stringer`.
[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] [stderr] error[E0449]: unnecessary visibility qualifier
[INFO] [stderr]   --> examples/structsandmethods.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn area(&self) -> i32 {
[INFO] [stderr]    |     ^^^ `pub` not permitted here because it's implied
[INFO] [stderr] 
[INFO] [stderr] error[E0449]: unnecessary visibility qualifier
[INFO] [stderr]   --> examples/structsandmethods.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn area(&self) -> i32 {
[INFO] [stderr]    |     ^^^ `pub` not permitted here because it's implied
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from` in module `std::i32`
[INFO] [stderr]   --> examples/structsandmethods.rs:31:26
[INFO] [stderr]    |
[INFO] [stderr] 31 |         return std::i32::from(farea);
[INFO] [stderr]    |                          ^^^^ not found in `std::i32`
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `structsandmethods`
[INFO] [stderr]   --> examples/structsandmethods.rs:1:1
[INFO] [stderr]    |
[INFO] [stderr] 1  | / pub struct Point {
[INFO] [stderr] 2  | |     x: i32,
[INFO] [stderr] 3  | |     y: i32,
[INFO] [stderr] 4  | | }
[INFO] [stderr] ...  |
[INFO] [stderr] 32 | |     }
[INFO] [stderr] 33 | | }
[INFO] [stderr]    | |_^ consider adding a `main` function to `examples/structsandmethods.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0449, E0601.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `stringer`.
[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] [stderr] error: build failed
[INFO] running `"docker" "inspect" "3f8709d3e388569c9c8788ec6537b1cab14d168a7ef967a56bed8fb32a6e2cdc"`
[INFO] running `"docker" "rm" "-f" "3f8709d3e388569c9c8788ec6537b1cab14d168a7ef967a56bed8fb32a6e2cdc"`
[INFO] [stdout] 3f8709d3e388569c9c8788ec6537b1cab14d168a7ef967a56bed8fb32a6e2cdc