[INFO] cloning repository https://github.com/phodal/llvm-rust-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/phodal/llvm-rust-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Fllvm-rust-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Fllvm-rust-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7cc2e45d5c1cf9629e0a4861a1ab890d0342ac0d
[INFO] checking phodal/llvm-rust-demo against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Fllvm-rust-demo" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phodal/llvm-rust-demo on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/phodal/llvm-rust-demo
[INFO] finished tweaking git repo https://github.com/phodal/llvm-rust-demo
[INFO] tweaked toml for git repo https://github.com/phodal/llvm-rust-demo written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/phodal/llvm-rust-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/TheDan64/inkwell`
[INFO] [stderr]     Updating git repository `https://github.com/jauhien/iron-llvm.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f006e49a80110b79ec78fb29f2a50e68280bf8c02e06d8591ad8bf3b71f7991
[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" "0f006e49a80110b79ec78fb29f2a50e68280bf8c02e06d8591ad8bf3b71f7991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f006e49a80110b79ec78fb29f2a50e68280bf8c02e06d8591ad8bf3b71f7991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f006e49a80110b79ec78fb29f2a50e68280bf8c02e06d8591ad8bf3b71f7991", kill_on_drop: false }`
[INFO] [stdout] 0f006e49a80110b79ec78fb29f2a50e68280bf8c02e06d8591ad8bf3b71f7991
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43fd2f6644a7f887ee7d4cc875fec7c8bca8c1fa669ca605d426fe56369f6db3
[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" "43fd2f6644a7f887ee7d4cc875fec7c8bca8c1fa669ca605d426fe56369f6db3", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking strsim v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling llvm-sys v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking kernel32-sys v0.2.2
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling iron_llvm v0.0.1 (https://github.com/jauhien/iron-llvm.git#401fbb93)
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stdout] error[E0635]: unknown feature `convert`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/iron-llvm-200ba2503a7438b1/401fbb9/src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(convert)]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iron_llvm`
[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 `Command { std: "docker" "inspect" "43fd2f6644a7f887ee7d4cc875fec7c8bca8c1fa669ca605d426fe56369f6db3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43fd2f6644a7f887ee7d4cc875fec7c8bca8c1fa669ca605d426fe56369f6db3", kill_on_drop: false }`
[INFO] [stdout] 43fd2f6644a7f887ee7d4cc875fec7c8bca8c1fa669ca605d426fe56369f6db3