[INFO] cloning repository https://github.com/mFrankowicz/rispreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mFrankowicz/rispreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmFrankowicz%2Frispreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmFrankowicz%2Frispreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 914babc836850d6c07755dfbd76f56bf3bfde0c1
[INFO] testing mFrankowicz/rispreter against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmFrankowicz%2Frispreter" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mFrankowicz/rispreter on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mFrankowicz/rispreter
[INFO] finished tweaking git repo https://github.com/mFrankowicz/rispreter
[INFO] tweaked toml for git repo https://github.com/mFrankowicz/rispreter written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/mFrankowicz/rispreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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 smallstr v0.1.0
[INFO] [stderr]   Downloaded terminfo v0.6.1
[INFO] [stderr]   Downloaded arrayvec v0.4.9
[INFO] [stderr]   Downloaded cc v1.0.26
[INFO] [stderr]   Downloaded mortal v0.1.5
[INFO] [stderr]   Downloaded linefeed v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0882ce94f19ca75b26a6953137ec6ae630c8baff6ce3635288c00a10f7be11e9
[INFO] running `Command { std: "docker" "start" "-a" "0882ce94f19ca75b26a6953137ec6ae630c8baff6ce3635288c00a10f7be11e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0882ce94f19ca75b26a6953137ec6ae630c8baff6ce3635288c00a10f7be11e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0882ce94f19ca75b26a6953137ec6ae630c8baff6ce3635288c00a10f7be11e9", kill_on_drop: false }`
[INFO] [stdout] 0882ce94f19ca75b26a6953137ec6ae630c8baff6ce3635288c00a10f7be11e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12a4a7bf8230a93d6dd88bedfc906cdfcacbb8ad4a120d0667d5d65acae24d4c
[INFO] running `Command { std: "docker" "start" "-a" "12a4a7bf8230a93d6dd88bedfc906cdfcacbb8ad4a120d0667d5d65acae24d4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling phf v0.7.23
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling smallstr v0.1.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling dirs v1.0.4
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling rispreter-parser v0.1.0 (/opt/rustwide/workdir/rispreter-parser)
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]    Compiling mortal v0.1.5
[INFO] [stderr]    Compiling linefeed v0.5.4
[INFO] [stderr]    Compiling rispreter-repl v0.0.6 (/opt/rustwide/workdir/rispreter-repl)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> rispreter-repl/src/bin/rispreter.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `rispreter-repl`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "12a4a7bf8230a93d6dd88bedfc906cdfcacbb8ad4a120d0667d5d65acae24d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a4a7bf8230a93d6dd88bedfc906cdfcacbb8ad4a120d0667d5d65acae24d4c", kill_on_drop: false }`
[INFO] [stdout] 12a4a7bf8230a93d6dd88bedfc906cdfcacbb8ad4a120d0667d5d65acae24d4c
