[INFO] cloning repository https://github.com/Systemcluster/bracket2-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Systemcluster/bracket2-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSystemcluster%2Fbracket2-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSystemcluster%2Fbracket2-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52538166672b9b31fda33a3ad0abd3fc1cac9a62
[INFO] checking Systemcluster/bracket2-rs against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSystemcluster%2Fbracket2-rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Systemcluster/bracket2-rs on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-14/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Systemcluster/bracket2-rs
[INFO] finished tweaking git repo https://github.com/Systemcluster/bracket2-rs
[INFO] tweaked toml for git repo https://github.com/Systemcluster/bracket2-rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Systemcluster/bracket2-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simplelog v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70393dbfed60980480a0d6ea34bb0de85f9f502d881b2eb4a9746b5ce0255f24
[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" "70393dbfed60980480a0d6ea34bb0de85f9f502d881b2eb4a9746b5ce0255f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70393dbfed60980480a0d6ea34bb0de85f9f502d881b2eb4a9746b5ce0255f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70393dbfed60980480a0d6ea34bb0de85f9f502d881b2eb4a9746b5ce0255f24", kill_on_drop: false }`
[INFO] [stdout] 70393dbfed60980480a0d6ea34bb0de85f9f502d881b2eb4a9746b5ce0255f24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41c69d7458e41c69ec5049cf7a4ad00d48033949add57ecfb0cccf03e8ed42e1
[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" "41c69d7458e41c69ec5049cf7a4ad00d48033949add57ecfb0cccf03e8ed42e1", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking unicode-segmentation v1.2.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]     Checking bracket2 v0.0.1-dev (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/main.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(const_fn)] // const functions
[INFO] [stdout]    |            ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/main.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(const_fn)] // const functions
[INFO] [stdout]    |            ^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/main.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(const_generics)] // const generics
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/main.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(const_generics)] // const generics
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/program.rs:140:3
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         lazy_static!{
[INFO] [stdout] 141 | |             static ref SUBLINK: Regex = Regex::new(r"^&([0-9]*)$").unwrap();
[INFO] [stdout] 142 | |             static ref INTEGER: Regex = Regex::new(r"^([0-9]+)$").unwrap();
[INFO] [stdout] 143 | |             static ref FLOATP: Regex = Regex::new(r"^([0-9]+\.[0-9]+)$").unwrap();
[INFO] [stdout] 144 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/program.rs:140:3
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         lazy_static!{
[INFO] [stdout] 141 | |             static ref SUBLINK: Regex = Regex::new(r"^&([0-9]*)$").unwrap();
[INFO] [stdout] 142 | |             static ref INTEGER: Regex = Regex::new(r"^([0-9]+)$").unwrap();
[INFO] [stdout] 143 | |             static ref FLOATP: Regex = Regex::new(r"^([0-9]+\.[0-9]+)$").unwrap();
[INFO] [stdout] 144 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/program.rs:140:3
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         lazy_static!{
[INFO] [stdout] 141 | |             static ref SUBLINK: Regex = Regex::new(r"^&([0-9]*)$").unwrap();
[INFO] [stdout] 142 | |             static ref INTEGER: Regex = Regex::new(r"^([0-9]+)$").unwrap();
[INFO] [stdout] 143 | |             static ref FLOATP: Regex = Regex::new(r"^([0-9]+\.[0-9]+)$").unwrap();
[INFO] [stdout] 144 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/program.rs:140:3
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         lazy_static!{
[INFO] [stdout] 141 | |             static ref SUBLINK: Regex = Regex::new(r"^&([0-9]*)$").unwrap();
[INFO] [stdout] 142 | |             static ref INTEGER: Regex = Regex::new(r"^([0-9]+)$").unwrap();
[INFO] [stdout] 143 | |             static ref FLOATP: Regex = Regex::new(r"^([0-9]+\.[0-9]+)$").unwrap();
[INFO] [stdout] 144 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/program.rs:140:3
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         lazy_static!{
[INFO] [stdout] 141 | |             static ref SUBLINK: Regex = Regex::new(r"^&([0-9]*)$").unwrap();
[INFO] [stdout] 142 | |             static ref INTEGER: Regex = Regex::new(r"^([0-9]+)$").unwrap();
[INFO] [stdout] 143 | |             static ref FLOATP: Regex = Regex::new(r"^([0-9]+\.[0-9]+)$").unwrap();
[INFO] [stdout] 144 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> src/program.rs:140:3
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         lazy_static!{
[INFO] [stdout] 141 | |             static ref SUBLINK: Regex = Regex::new(r"^&([0-9]*)$").unwrap();
[INFO] [stdout] 142 | |             static ref INTEGER: Regex = Regex::new(r"^([0-9]+)$").unwrap();
[INFO] [stdout] 143 | |             static ref FLOATP: Regex = Regex::new(r"^([0-9]+\.[0-9]+)$").unwrap();
[INFO] [stdout] 144 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bracket2`
[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] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "41c69d7458e41c69ec5049cf7a4ad00d48033949add57ecfb0cccf03e8ed42e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41c69d7458e41c69ec5049cf7a4ad00d48033949add57ecfb0cccf03e8ed42e1", kill_on_drop: false }`
[INFO] [stdout] 41c69d7458e41c69ec5049cf7a4ad00d48033949add57ecfb0cccf03e8ed42e1