[INFO] fetching crate bookcase_alloc 0.0.2...
[INFO] testing bookcase_alloc-0.0.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate bookcase_alloc 0.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate bookcase_alloc 0.0.2
[INFO] finished tweaking crates.io crate bookcase_alloc 0.0.2
[INFO] tweaked toml for crates.io crate bookcase_alloc 0.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bookcase_alloc 0.0.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bookcase_alloc_macros v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bce25e1e087084f0e76b4ee084fa0d0f66a94cf6a941fe495e014b07b3e74c09
[INFO] running `Command { std: "docker" "start" "-a" "bce25e1e087084f0e76b4ee084fa0d0f66a94cf6a941fe495e014b07b3e74c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bce25e1e087084f0e76b4ee084fa0d0f66a94cf6a941fe495e014b07b3e74c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bce25e1e087084f0e76b4ee084fa0d0f66a94cf6a941fe495e014b07b3e74c09", kill_on_drop: false }`
[INFO] [stdout] bce25e1e087084f0e76b4ee084fa0d0f66a94cf6a941fe495e014b07b3e74c09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4955edb52c9930f238b42ff39eec951a03aba081ef6eb0468902bb396d48519
[INFO] running `Command { std: "docker" "start" "-a" "e4955edb52c9930f238b42ff39eec951a03aba081ef6eb0468902bb396d48519", kill_on_drop: false }`
[INFO] [stderr]    Compiling bookcase_alloc_macros v2.0.0
[INFO] [stderr]    Compiling bookcase_alloc v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: [bookcase_alloc] 0.0.2 is an experimental version, but stable feature was enabled.
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | ::bookcase_alloc_macros::assert_release_channel!();
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `::bookcase_alloc_macros::assert_release_channel` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: [bookcase_alloc] 0.0.2 is an experimental version, but experimental feature was disabled.
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | ::bookcase_alloc_macros::assert_release_channel!();
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the macro `::bookcase_alloc_macros::assert_release_channel` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bookcase_alloc` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e4955edb52c9930f238b42ff39eec951a03aba081ef6eb0468902bb396d48519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4955edb52c9930f238b42ff39eec951a03aba081ef6eb0468902bb396d48519", kill_on_drop: false }`
[INFO] [stdout] e4955edb52c9930f238b42ff39eec951a03aba081ef6eb0468902bb396d48519