[INFO] fetching crate geml 1.1.26...
[INFO] testing geml-1.1.26 against 1.60.0 for beta-1.61-1
[INFO] extracting crate geml 1.1.26 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate geml 1.1.26 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate geml 1.1.26
[INFO] finished tweaking crates.io crate geml 1.1.26
[INFO] tweaked toml for crates.io crate geml 1.1.26 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] d6e7c949a0976c75bf54517e06f5fb8756c39c5701ad5cc04b071acf6598a28e
[INFO] running `Command { std: "docker" "start" "-a" "d6e7c949a0976c75bf54517e06f5fb8756c39c5701ad5cc04b071acf6598a28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e7c949a0976c75bf54517e06f5fb8756c39c5701ad5cc04b071acf6598a28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e7c949a0976c75bf54517e06f5fb8756c39c5701ad5cc04b071acf6598a28e", kill_on_drop: false }`
[INFO] [stdout] d6e7c949a0976c75bf54517e06f5fb8756c39c5701ad5cc04b071acf6598a28e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 6cb871d58aeaef2a7de1253919a25c99b46aa6086c3272d014ba5b2f1e2d51dd
[INFO] running `Command { std: "docker" "start" "-a" "6cb871d58aeaef2a7de1253919a25c99b46aa6086c3272d014ba5b2f1e2d51dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling geml v1.1.26 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/markdown/mod.rs:104:30
[INFO] [stdout]     |
[INFO] [stdout] 104 |     format!("<{}>{}</{}>", if{cap[1].len()==1}{"em"}else{"strong"}, &cap[2], if{cap[1].len()==1}{"em"}else{"strong"})
[INFO] [stdout]     |                              ^               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 104 -     format!("<{}>{}</{}>", if{cap[1].len()==1}{"em"}else{"strong"}, &cap[2], if{cap[1].len()==1}{"em"}else{"strong"})
[INFO] [stdout] 104 +     format!("<{}>{}</{}>", if cap[1].len()==1 {"em"}else{"strong"}, &cap[2], if{cap[1].len()==1}{"em"}else{"strong"})
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around `if` condition
[INFO] [stdout]    --> src/markdown/mod.rs:104:80
[INFO] [stdout]     |
[INFO] [stdout] 104 |     format!("<{}>{}</{}>", if{cap[1].len()==1}{"em"}else{"strong"}, &cap[2], if{cap[1].len()==1}{"em"}else{"strong"})
[INFO] [stdout]     |                                                                                ^               ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 104 -     format!("<{}>{}</{}>", if{cap[1].len()==1}{"em"}else{"strong"}, &cap[2], if{cap[1].len()==1}{"em"}else{"strong"})
[INFO] [stdout] 104 +     format!("<{}>{}</{}>", if{cap[1].len()==1}{"em"}else{"strong"}, &cap[2], if cap[1].len()==1 {"em"}else{"strong"})
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cap`
[INFO] [stdout]    --> src/markdown/mod.rs:107:18
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn rule_replacer(cap: &Captures) -> String {
[INFO] [stdout]     |                  ^^^ help: if this is intentional, prefix it with an underscore: `_cap`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pathbuf`
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pathbuf: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Metadata` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/lib.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 22 | #[derive(Clone)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/bin/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_as_u128)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `duration_as_u128` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/bin/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(duration_as_u128)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `geml` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6cb871d58aeaef2a7de1253919a25c99b46aa6086c3272d014ba5b2f1e2d51dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb871d58aeaef2a7de1253919a25c99b46aa6086c3272d014ba5b2f1e2d51dd", kill_on_drop: false }`
[INFO] [stdout] 6cb871d58aeaef2a7de1253919a25c99b46aa6086c3272d014ba5b2f1e2d51dd