[INFO] cloning repository https://github.com/m1el/transmute-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m1el/transmute-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1el%2Ftransmute-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1el%2Ftransmute-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 923a46ea76f82b830efdb13e3920a9765fc8e95d
[INFO] checking m1el/transmute-experiment against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm1el%2Ftransmute-experiment" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/m1el/transmute-experiment on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/m1el/transmute-experiment
[INFO] finished tweaking git repo https://github.com/m1el/transmute-experiment
[INFO] tweaked toml for git repo https://github.com/m1el/transmute-experiment written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/m1el/transmute-experiment already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52a82d611c290277a18028c1d79a99aa09d894391997b65737846a3e8aa9aa66
[INFO] running `Command { std: "docker" "start" "-a" "52a82d611c290277a18028c1d79a99aa09d894391997b65737846a3e8aa9aa66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52a82d611c290277a18028c1d79a99aa09d894391997b65737846a3e8aa9aa66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a82d611c290277a18028c1d79a99aa09d894391997b65737846a3e8aa9aa66", kill_on_drop: false }`
[INFO] [stdout] 52a82d611c290277a18028c1d79a99aa09d894391997b65737846a3e8aa9aa66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04f8d1f62ff4a53473712ad66b8c159d07a5780af760cd17f3d97e19fa60f033
[INFO] running `Command { std: "docker" "start" "-a" "04f8d1f62ff4a53473712ad66b8c159d07a5780af760cd17f3d97e19fa60f033", kill_on_drop: false }`
[INFO] [stderr]     Checking transmute-vm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(untagged_unions)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(untagged_unions)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: unions with `Copy` and `ManuallyDrop` fields are stable; there is no intent to stabilize more
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
[INFO] [stdout]    --> src/derive.rs:119:15
[INFO] [stdout]     |
[INFO] [stdout] 119 |               $($variant: $payload),*
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 | /         derive_ty!(#[repr(C)] union Uni {
[INFO] [stdout] 163 | |             a: u32,
[INFO] [stdout] 164 | |             b: Baz,
[INFO] [stdout] 165 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
[INFO] [stdout]     = note: this error originates in the macro `derive_ty` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: wrap the field type in `ManuallyDrop<...>`
[INFO] [stdout]    --> src/main.rs:164:16
[INFO] [stdout]     |
[INFO] [stdout] 164 |             b: std::mem::ManuallyDrop<Baz>,
[INFO] [stdout]     |                +++++++++++++++++++++++   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0740]: field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
[INFO] [stdout]    --> src/derive.rs:119:15
[INFO] [stdout]     |
[INFO] [stdout] 119 |               $($variant: $payload),*
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/main.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 | /         derive_ty!(#[repr(C)] union Uni {
[INFO] [stdout] 163 | |             a: u32,
[INFO] [stdout] 164 | |             b: Baz,
[INFO] [stdout] 165 | |         });
[INFO] [stdout]     | |__________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
[INFO] [stdout]     = note: this error originates in the macro `derive_ty` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: wrap the field type in `ManuallyDrop<...>`
[INFO] [stdout]    --> src/main.rs:164:16
[INFO] [stdout]     |
[INFO] [stdout] 164 |             b: std::mem::ManuallyDrop<Baz>,
[INFO] [stdout]     |                +++++++++++++++++++++++   +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0740.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `transmute-vm` (bin "transmute-vm" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `transmute-vm` (bin "transmute-vm") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "04f8d1f62ff4a53473712ad66b8c159d07a5780af760cd17f3d97e19fa60f033", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f8d1f62ff4a53473712ad66b8c159d07a5780af760cd17f3d97e19fa60f033", kill_on_drop: false }`
[INFO] [stdout] 04f8d1f62ff4a53473712ad66b8c159d07a5780af760cd17f3d97e19fa60f033
