[INFO] cloning repository https://github.com/ivan-shrimp/spcc_kickstart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ivan-shrimp/spcc_kickstart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-shrimp%2Fspcc_kickstart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-shrimp%2Fspcc_kickstart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab37accf9408ff48e40820d2b06788238ca73b66
[INFO] testing ivan-shrimp/spcc_kickstart against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fivan-shrimp%2Fspcc_kickstart" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ivan-shrimp/spcc_kickstart 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] removed /workspace/builds/worker-11/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/ivan-shrimp/spcc_kickstart
[INFO] finished tweaking git repo https://github.com/ivan-shrimp/spcc_kickstart
[INFO] tweaked toml for git repo https://github.com/ivan-shrimp/spcc_kickstart written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/ivan-shrimp/spcc_kickstart already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lexical-parse-integer v0.8.0
[INFO] [stderr]   Downloaded lexical-core v0.8.2
[INFO] [stderr]   Downloaded lexical v6.0.1
[INFO] [stderr]   Downloaded lexical-util v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 0bd62d0efd19461663c47fc39d4139f64d2f083543dd9c8307cfc486b992ab09
[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" "0bd62d0efd19461663c47fc39d4139f64d2f083543dd9c8307cfc486b992ab09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bd62d0efd19461663c47fc39d4139f64d2f083543dd9c8307cfc486b992ab09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bd62d0efd19461663c47fc39d4139f64d2f083543dd9c8307cfc486b992ab09", kill_on_drop: false }`
[INFO] [stdout] 0bd62d0efd19461663c47fc39d4139f64d2f083543dd9c8307cfc486b992ab09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 5770382122afa927c16a4b163165393d544b7bf408a18be083e4fd46cd8986a2
[INFO] running `Command { std: "docker" "start" "-a" "5770382122afa927c16a4b163165393d544b7bf408a18be083e4fd46cd8986a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling kickstart_macros v0.0.0 (/opt/rustwide/workdir/kickstart_macros)
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling hamming v0.1.3
[INFO] [stderr]    Compiling anyhow v1.0.56
[INFO] [stderr]    Compiling primal-estimate v0.3.1
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling a1 v0.1.0 (/opt/rustwide/workdir/a1)
[INFO] [stderr]    Compiling b5 v0.1.0 (/opt/rustwide/workdir/b5)
[INFO] [stderr]    Compiling a2 v0.1.0 (/opt/rustwide/workdir/a2)
[INFO] [stderr]    Compiling b2 v0.1.0 (/opt/rustwide/workdir/b2)
[INFO] [stderr]    Compiling a4 v0.1.0 (/opt/rustwide/workdir/a4)
[INFO] [stderr]    Compiling lexical-util v0.8.1
[INFO] [stderr]    Compiling primal-bit v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling a3 v0.1.0 (/opt/rustwide/workdir/a3)
[INFO] [stderr]    Compiling primal-sieve v0.3.2
[INFO] [stderr]    Compiling lexical-parse-integer v0.8.0
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling lexical-core v0.8.2
[INFO] [stderr]    Compiling lexical v6.0.1
[INFO] [stderr]    Compiling read_u32 v0.0.0 (/opt/rustwide/workdir/read_u32)
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> read_u32/src/lib.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<R: io::BufRead> U32Reader<R> {
[INFO] [stdout]    |      ^
[INFO] [stdout] ...
[INFO] [stdout] 13 |     pub const fn new(reader: R) -> Self {
[INFO] [stdout]    |     ----------------------------------- function declared as const here
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #93706 <https://github.com/rust-lang/rust/issues/93706> for more information
[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 E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `read_u32` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5770382122afa927c16a4b163165393d544b7bf408a18be083e4fd46cd8986a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5770382122afa927c16a4b163165393d544b7bf408a18be083e4fd46cd8986a2", kill_on_drop: false }`
[INFO] [stdout] 5770382122afa927c16a4b163165393d544b7bf408a18be083e4fd46cd8986a2