[INFO] cloning repository https://github.com/matthiaskrgr/cargo-rebuild-check
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthiaskrgr/cargo-rebuild-check" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Fcargo-rebuild-check", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Fcargo-rebuild-check'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d54fa01899ab0b14fd29fa0e585e8b1bad9bfefa
[INFO] checking matthiaskrgr/cargo-rebuild-check against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthiaskrgr%2Fcargo-rebuild-check" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matthiaskrgr/cargo-rebuild-check on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/matthiaskrgr/cargo-rebuild-check
[INFO] finished tweaking git repo https://github.com/matthiaskrgr/cargo-rebuild-check
[INFO] tweaked toml for git repo https://github.com/matthiaskrgr/cargo-rebuild-check written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/matthiaskrgr/cargo-rebuild-check already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e7a50fdc65b50d8e47f14cac5231c008449140e66fa6ef0c48f40e10f499bff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0e7a50fdc65b50d8e47f14cac5231c008449140e66fa6ef0c48f40e10f499bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e7a50fdc65b50d8e47f14cac5231c008449140e66fa6ef0c48f40e10f499bff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7a50fdc65b50d8e47f14cac5231c008449140e66fa6ef0c48f40e10f499bff", kill_on_drop: false }`
[INFO] [stdout] 0e7a50fdc65b50d8e47f14cac5231c008449140e66fa6ef0c48f40e10f499bff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f33711fb3ab2df88dc2d6ce4091334452953a7d55819cba9b56f92ce06ff4502
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f33711fb3ab2df88dc2d6ce4091334452953a7d55819cba9b56f92ce06ff4502", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling openssl v0.10.10
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking socket2 v0.3.7
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.6
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]     Checking jobserver v0.1.11
[INFO] [stderr]     Checking tempfile v3.0.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking serde_ignored v0.0.4
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking tar v0.4.16
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.8
[INFO] [stderr]    Compiling libgit2-sys v0.7.5
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]     Checking globset v0.4.0
[INFO] [stderr]     Checking ignore v0.4.2
[INFO] [stderr]     Checking crypto-hash v0.3.1
[INFO] [stderr]     Checking curl v0.4.12
[INFO] [stderr]     Checking crates-io v0.16.0
[INFO] [stderr]     Checking git2 v0.7.2
[INFO] [stderr]     Checking git2-curl v0.8.1
[INFO] [stderr]     Checking cargo v0.28.0
[INFO] [stderr]     Checking cargo-rebuild-check v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test`
[INFO] [stdout]  --> src/core.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use test::*;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test`
[INFO] [stdout]  --> src/parse.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use test::*;
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::test`
[INFO] [stdout]    --> src/core.rs:269:15
[INFO] [stdout]     |
[INFO] [stdout] 269 |     use self::test::Bencher;
[INFO] [stdout]     |               ^^^^ could not find `test` in `self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `self::test`
[INFO] [stdout]    --> src/parse.rs:193:15
[INFO] [stdout]     |
[INFO] [stdout] 193 |     use self::test::Bencher;
[INFO] [stdout]     |               ^^^^ could not find `test` in `self`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rust_2018_preview, use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0705.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-rebuild-check`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554, E0705.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f33711fb3ab2df88dc2d6ce4091334452953a7d55819cba9b56f92ce06ff4502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f33711fb3ab2df88dc2d6ce4091334452953a7d55819cba9b56f92ce06ff4502", kill_on_drop: false }`
[INFO] [stdout] f33711fb3ab2df88dc2d6ce4091334452953a7d55819cba9b56f92ce06ff4502