[INFO] cloning repository https://github.com/andyyu2004/cir
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andyyu2004/cir" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyyu2004%2Fcir", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyyu2004%2Fcir'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c6afa11d1c8ac15c10399df691917f48d7ca34b
[INFO] testing andyyu2004/cir against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandyyu2004%2Fcir" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andyyu2004/cir 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 git repo https://github.com/andyyu2004/cir
[INFO] finished tweaking git repo https://github.com/andyyu2004/cir
[INFO] tweaked toml for git repo https://github.com/andyyu2004/cir written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/andyyu2004/cir 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]     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 smol_str v0.1.21
[INFO] [stderr]   Downloaded peg v0.7.0
[INFO] [stderr]   Downloaded peg-runtime v0.7.0
[INFO] [stderr]   Downloaded peg-macros v0.7.0
[INFO] [stderr]   Downloaded dissimilar v1.0.3
[INFO] [stderr]   Downloaded expect-test v1.2.1
[INFO] [stderr]   Downloaded codespan v0.11.1
[INFO] [stderr]   Downloaded enum-map v1.1.1
[INFO] [stderr]   Downloaded enum-map-derive v0.6.0
[INFO] [stderr]   Downloaded la-arena v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 222b5bdd5e44ca884cca22feaccffe2ecbede4249141c393734f640787fb1dbb
[INFO] running `Command { std: "docker" "start" "-a" "222b5bdd5e44ca884cca22feaccffe2ecbede4249141c393734f640787fb1dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "222b5bdd5e44ca884cca22feaccffe2ecbede4249141c393734f640787fb1dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222b5bdd5e44ca884cca22feaccffe2ecbede4249141c393734f640787fb1dbb", kill_on_drop: false }`
[INFO] [stdout] 222b5bdd5e44ca884cca22feaccffe2ecbede4249141c393734f640787fb1dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76edc243794698679df5bcbaf0da6145784119e8b9f0d73fae02f65d6bc13ca6
[INFO] running `Command { std: "docker" "start" "-a" "76edc243794698679df5bcbaf0da6145784119e8b9f0d73fae02f65d6bc13ca6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling la-arena v0.2.1
[INFO] [stderr]    Compiling smol_str v0.1.21
[INFO] [stderr]    Compiling peg-runtime v0.7.0
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling anyhow v1.0.51
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling codespan v0.11.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling peg-macros v0.7.0
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling cir v0.1.0 (/opt/rustwide/workdir/src/cir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/cir/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(once_cell)]
[INFO] [stdout]   |            ^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cir` 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" "76edc243794698679df5bcbaf0da6145784119e8b9f0d73fae02f65d6bc13ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76edc243794698679df5bcbaf0da6145784119e8b9f0d73fae02f65d6bc13ca6", kill_on_drop: false }`
[INFO] [stdout] 76edc243794698679df5bcbaf0da6145784119e8b9f0d73fae02f65d6bc13ca6