[INFO] cloning repository https://github.com/TommyPujol06/rust-ssh-chat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TommyPujol06/rust-ssh-chat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTommyPujol06%2Frust-ssh-chat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTommyPujol06%2Frust-ssh-chat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2c886bccbf3dee3d0f399b3fdd2d7bcd860cd1d
[INFO] testing TommyPujol06/rust-ssh-chat against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTommyPujol06%2Frust-ssh-chat" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TommyPujol06/rust-ssh-chat 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] removed /workspace/builds/worker-0/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/TommyPujol06/rust-ssh-chat
[INFO] finished tweaking git repo https://github.com/TommyPujol06/rust-ssh-chat
[INFO] tweaked toml for git repo https://github.com/TommyPujol06/rust-ssh-chat written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/TommyPujol06/rust-ssh-chat 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] e4a828a3e89413e718ace2b0314eecebb8afe74bd64dea0834e2e66ef78e0e3b
[INFO] running `Command { std: "docker" "start" "-a" "e4a828a3e89413e718ace2b0314eecebb8afe74bd64dea0834e2e66ef78e0e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4a828a3e89413e718ace2b0314eecebb8afe74bd64dea0834e2e66ef78e0e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4a828a3e89413e718ace2b0314eecebb8afe74bd64dea0834e2e66ef78e0e3b", kill_on_drop: false }`
[INFO] [stdout] e4a828a3e89413e718ace2b0314eecebb8afe74bd64dea0834e2e66ef78e0e3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7ea93d3970583fc744b4af8647c8cceb016bece82c5a93510e602b48d8141477
[INFO] running `Command { std: "docker" "start" "-a" "7ea93d3970583fc744b4af8647c8cceb016bece82c5a93510e602b48d8141477", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling mio v0.7.11
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling cryptovec v0.6.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling dirs v3.0.1
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling yasna v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling thrussh-libsodium v0.2.1
[INFO] [stderr]    Compiling thrussh-keys v0.20.6
[INFO] [stderr]    Compiling thrussh v0.32.10
[INFO] [stderr]    Compiling ssh_chat 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(duration_constants)]
[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 `ssh_chat`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7ea93d3970583fc744b4af8647c8cceb016bece82c5a93510e602b48d8141477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea93d3970583fc744b4af8647c8cceb016bece82c5a93510e602b48d8141477", kill_on_drop: false }`
[INFO] [stdout] 7ea93d3970583fc744b4af8647c8cceb016bece82c5a93510e602b48d8141477
