[INFO] cloning repository https://github.com/simonvandel/fcbf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonvandel/fcbf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonvandel%2Ffcbf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonvandel%2Ffcbf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08439f0dc2e4d00fb8a3d6391842d47cdfe54178
[INFO] testing simonvandel/fcbf against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonvandel%2Ffcbf" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonvandel/fcbf on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simonvandel/fcbf
[INFO] finished tweaking git repo https://github.com/simonvandel/fcbf
[INFO] tweaked toml for git repo https://github.com/simonvandel/fcbf written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/simonvandel/fcbf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded csv-core v0.1.4
[INFO] [stderr]   Downloaded noisy_float v0.1.4
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded float-cmp v0.4.0
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded env_logger v0.5.9
[INFO] [stderr]   Downloaded ndarray v0.11.2
[INFO] [stderr]   Downloaded indexmap v1.0.1
[INFO] [stderr]   Downloaded quickcheck v0.6.2
[INFO] [stderr]   Downloaded serde v1.0.45
[INFO] [stderr]   Downloaded csv v1.0.0-beta.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc3f5e766e1731f497fc2449bca3885e0bdddafc9e201e5384d54961af04c3a8
[INFO] running `Command { std: "docker" "start" "-a" "cc3f5e766e1731f497fc2449bca3885e0bdddafc9e201e5384d54961af04c3a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc3f5e766e1731f497fc2449bca3885e0bdddafc9e201e5384d54961af04c3a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc3f5e766e1731f497fc2449bca3885e0bdddafc9e201e5384d54961af04c3a8", kill_on_drop: false }`
[INFO] [stdout] cc3f5e766e1731f497fc2449bca3885e0bdddafc9e201e5384d54961af04c3a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ddf3fafac52173c9022d76391a6d81752b9ee9ed2b15ea92f9b57ddf4c7f390
[INFO] running `Command { std: "docker" "start" "-a" "8ddf3fafac52173c9022d76391a6d81752b9ee9ed2b15ea92f9b57ddf4c7f390", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling csv-core v0.1.4
[INFO] [stderr]    Compiling noisy_float v0.1.4
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling csv v1.0.0-beta.5
[INFO] [stderr]    Compiling fcbf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll)]
[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 `fcbf` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8ddf3fafac52173c9022d76391a6d81752b9ee9ed2b15ea92f9b57ddf4c7f390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ddf3fafac52173c9022d76391a6d81752b9ee9ed2b15ea92f9b57ddf4c7f390", kill_on_drop: false }`
[INFO] [stdout] 8ddf3fafac52173c9022d76391a6d81752b9ee9ed2b15ea92f9b57ddf4c7f390