[INFO] cloning repository https://github.com/tuxzz/t.rust-speed-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuxzz/t.rust-speed-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuxzz%2Ft.rust-speed-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuxzz%2Ft.rust-speed-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 113c8c425ad41f515d2823ccb1115407ba57cda1
[INFO] testing tuxzz/t.rust-speed-test against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuxzz%2Ft.rust-speed-test" "/workspace/builds/worker-70/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-70/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tuxzz/t.rust-speed-test 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/tuxzz/t.rust-speed-test
[INFO] finished tweaking git repo https://github.com/tuxzz/t.rust-speed-test
[INFO] tweaked toml for git repo https://github.com/tuxzz/t.rust-speed-test written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] crate git repo https://github.com/tuxzz/t.rust-speed-test 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]  Downloading crates ...
[INFO] [stderr]   Downloaded ndarray v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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] 88b761fd73578ed2ed648a9d9446635526ad9580e25e8c4632b497c5c4b5fdbc
[INFO] running `Command { std: "docker" "start" "-a" "88b761fd73578ed2ed648a9d9446635526ad9580e25e8c4632b497c5c4b5fdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88b761fd73578ed2ed648a9d9446635526ad9580e25e8c4632b497c5c4b5fdbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b761fd73578ed2ed648a9d9446635526ad9580e25e8c4632b497c5c4b5fdbc", kill_on_drop: false }`
[INFO] [stdout] 88b761fd73578ed2ed648a9d9446635526ad9580e25e8c4632b497c5c4b5fdbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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] bb14490f87683dfdc5dc2d9dd0c0a64ab418faf416625abe87cc1c74b9dd9fb0
[INFO] running `Command { std: "docker" "start" "-a" "bb14490f87683dfdc5dc2d9dd0c0a64ab418faf416625abe87cc1c74b9dd9fb0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling ndarray v0.12.0
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling speed 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_as_u128)]
[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 `speed`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "bb14490f87683dfdc5dc2d9dd0c0a64ab418faf416625abe87cc1c74b9dd9fb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb14490f87683dfdc5dc2d9dd0c0a64ab418faf416625abe87cc1c74b9dd9fb0", kill_on_drop: false }`
[INFO] [stdout] bb14490f87683dfdc5dc2d9dd0c0a64ab418faf416625abe87cc1c74b9dd9fb0
