[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#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphodal%2Fllvm-rust-demo" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phodal/llvm-rust-demo on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-22/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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 llvm-sys v0.2.1
[INFO] [stderr]   Downloaded regex_macros v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5e047cacb6474a22a29b272a361fb67fffdcfc5ef762a14f8dd192f4822f45d
[INFO] running `Command { std: "docker" "start" "-a" "a5e047cacb6474a22a29b272a361fb67fffdcfc5ef762a14f8dd192f4822f45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5e047cacb6474a22a29b272a361fb67fffdcfc5ef762a14f8dd192f4822f45d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5e047cacb6474a22a29b272a361fb67fffdcfc5ef762a14f8dd192f4822f45d", kill_on_drop: false }`
[INFO] [stdout] a5e047cacb6474a22a29b272a361fb67fffdcfc5ef762a14f8dd192f4822f45d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68e45c5b07f9010fc64af5a9be7cd325a98b3633dd9339774e28c370f1d9a449
[INFO] running `Command { std: "docker" "start" "-a" "68e45c5b07f9010fc64af5a9be7cd325a98b3633dd9339774e28c370f1d9a449", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/TheDan64/inkwell?branch=master#4e8c101e)
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[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]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling inkwell v0.1.0-llvm10sample
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling aho-corasick v0.7.14
[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]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling llvm-sys v0.2.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking docopt v0.6.86
[INFO] [stderr]    Compiling regex v1.4.1
[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` 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" "68e45c5b07f9010fc64af5a9be7cd325a98b3633dd9339774e28c370f1d9a449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e45c5b07f9010fc64af5a9be7cd325a98b3633dd9339774e28c370f1d9a449", kill_on_drop: false }`
[INFO] [stdout] 68e45c5b07f9010fc64af5a9be7cd325a98b3633dd9339774e28c370f1d9a449