[INFO] fetching crate gc_api 0.5.0...
[INFO] testing gc_api-0.5.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate gc_api 0.5.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate gc_api 0.5.0
[INFO] finished tweaking crates.io crate gc_api 0.5.0
[INFO] tweaked toml for crates.io crate gc_api 0.5.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gc_api 0.5.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7d64b5ab9014fb0b887a93c67f325dd31a99d346286b4ee628a2872fd0fe490
[INFO] running `Command { std: "docker" "start" "-a" "a7d64b5ab9014fb0b887a93c67f325dd31a99d346286b4ee628a2872fd0fe490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7d64b5ab9014fb0b887a93c67f325dd31a99d346286b4ee628a2872fd0fe490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7d64b5ab9014fb0b887a93c67f325dd31a99d346286b4ee628a2872fd0fe490", kill_on_drop: false }`
[INFO] [stdout] a7d64b5ab9014fb0b887a93c67f325dd31a99d346286b4ee628a2872fd0fe490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dbd7d6f092463e886e0ac7b842bd47470918bd03ec990dd146468aa21a29cfc
[INFO] running `Command { std: "docker" "start" "-a" "4dbd7d6f092463e886e0ac7b842bd47470918bd03ec990dd146468aa21a29cfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling gc_api v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "4dbd7d6f092463e886e0ac7b842bd47470918bd03ec990dd146468aa21a29cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dbd7d6f092463e886e0ac7b842bd47470918bd03ec990dd146468aa21a29cfc", kill_on_drop: false }`
[INFO] [stdout] 4dbd7d6f092463e886e0ac7b842bd47470918bd03ec990dd146468aa21a29cfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bd19d04dcdd828b3b72af2e63e0507c95db8428e2222e9693311ee053204900
[INFO] running `Command { std: "docker" "start" "-a" "4bd19d04dcdd828b3b72af2e63e0507c95db8428e2222e9693311ee053204900", kill_on_drop: false }`
[INFO] [stderr]    Compiling gc_api v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "4bd19d04dcdd828b3b72af2e63e0507c95db8428e2222e9693311ee053204900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bd19d04dcdd828b3b72af2e63e0507c95db8428e2222e9693311ee053204900", kill_on_drop: false }`
[INFO] [stdout] 4bd19d04dcdd828b3b72af2e63e0507c95db8428e2222e9693311ee053204900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78042c219959ae06e2bfc74cd955a9e7d83021889e5901c6cb1a89c82a919de4
[INFO] running `Command { std: "docker" "start" "-a" "78042c219959ae06e2bfc74cd955a9e7d83021889e5901c6cb1a89c82a919de4", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gc_api-897c2b625c31eaaa)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests gc_api
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Gc (line 33) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Gc (line 33) stdout ----
[INFO] [stdout] error[E0412]: cannot find type `SomeAllocator` in this scope
[INFO] [stdout]   --> src/lib.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 | let mut item: Gc<i32, SomeAllocator> = allocator.alloc(3);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_33_0<SomeAllocator>() {
[INFO] [stdout]    |                                                                      +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `allocator` in this scope
[INFO] [stdout]   --> src/lib.rs:36:40
[INFO] [stdout]    |
[INFO] [stdout] 36 | let mut item: Gc<i32, SomeAllocator> = allocator.alloc(3);
[INFO] [stdout]    |                                        ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `allocator` in this scope
[INFO] [stdout]   --> src/lib.rs:46:35
[INFO] [stdout]    |
[INFO] [stdout] 46 | let with_alloc: &i32 = item.with(&allocator);
[INFO] [stdout]    |                                   ^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Gc (line 33)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "78042c219959ae06e2bfc74cd955a9e7d83021889e5901c6cb1a89c82a919de4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78042c219959ae06e2bfc74cd955a9e7d83021889e5901c6cb1a89c82a919de4", kill_on_drop: false }`
[INFO] [stdout] 78042c219959ae06e2bfc74cd955a9e7d83021889e5901c6cb1a89c82a919de4