[INFO] fetching crate c-arrow 0.1.4...
[INFO] testing c-arrow-0.1.4 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate c-arrow 0.1.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate c-arrow 0.1.4
[INFO] finished tweaking crates.io crate c-arrow 0.1.4
[INFO] tweaked toml for crates.io crate c-arrow 0.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate c-arrow 0.1.4 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] 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] 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] 7312259ef9a7b09fd1dcd3a7167c15d0df07d7410a94e0dba92c90e83d00bc90
[INFO] running `Command { std: "docker" "start" "-a" "7312259ef9a7b09fd1dcd3a7167c15d0df07d7410a94e0dba92c90e83d00bc90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7312259ef9a7b09fd1dcd3a7167c15d0df07d7410a94e0dba92c90e83d00bc90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7312259ef9a7b09fd1dcd3a7167c15d0df07d7410a94e0dba92c90e83d00bc90", kill_on_drop: false }`
[INFO] [stdout] 7312259ef9a7b09fd1dcd3a7167c15d0df07d7410a94e0dba92c90e83d00bc90
[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] 8d30df7f4a104d6cdd3b0c01066fa30cf53eeb6ca6f6e0478b4efc80ada041f4
[INFO] running `Command { std: "docker" "start" "-a" "8d30df7f4a104d6cdd3b0c01066fa30cf53eeb6ca6f6e0478b4efc80ada041f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling c-arrow v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "8d30df7f4a104d6cdd3b0c01066fa30cf53eeb6ca6f6e0478b4efc80ada041f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d30df7f4a104d6cdd3b0c01066fa30cf53eeb6ca6f6e0478b4efc80ada041f4", kill_on_drop: false }`
[INFO] [stdout] 8d30df7f4a104d6cdd3b0c01066fa30cf53eeb6ca6f6e0478b4efc80ada041f4
[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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ceba1bf327f162b85e329e8d2544af69fb9f65d0cabd1226b29fb0f91c18ecbc
[INFO] running `Command { std: "docker" "start" "-a" "ceba1bf327f162b85e329e8d2544af69fb9f65d0cabd1226b29fb0f91c18ecbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling c-arrow v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "ceba1bf327f162b85e329e8d2544af69fb9f65d0cabd1226b29fb0f91c18ecbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceba1bf327f162b85e329e8d2544af69fb9f65d0cabd1226b29fb0f91c18ecbc", kill_on_drop: false }`
[INFO] [stdout] ceba1bf327f162b85e329e8d2544af69fb9f65d0cabd1226b29fb0f91c18ecbc
[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" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6cbfe4a6cc8a9aa4f7c35252172ec7239ac532f6ea2dd3f98baed978916a41be
[INFO] running `Command { std: "docker" "start" "-a" "6cbfe4a6cc8a9aa4f7c35252172ec7239ac532f6ea2dd3f98baed978916a41be", 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/c_arrow-8e34a2aed0b28cf8)
[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 c_arrow
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 26) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 26) stdout ----
[INFO] [stdout] error[E0412]: cannot find type `Stack` in this scope
[INFO] [stdout]   --> src/lib.rs:28:16
[INFO] [stdout]    |
[INFO] [stdout] 28 | let mut stack: Stack<char> = Stack::new();
[INFO] [stdout]    |                ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Stack`
[INFO] [stdout]   --> src/lib.rs:28:30
[INFO] [stdout]    |
[INFO] [stdout] 28 | let mut stack: Stack<char> = Stack::new();
[INFO] [stdout]    |                              ^^^^^ use of undeclared type `Stack`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `back_of` in this scope
[INFO] [stdout]   --> src/lib.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pt![back_of(top_back)->back->data = 'x'];
[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, E0433.
[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 - (line 26)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "6cbfe4a6cc8a9aa4f7c35252172ec7239ac532f6ea2dd3f98baed978916a41be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cbfe4a6cc8a9aa4f7c35252172ec7239ac532f6ea2dd3f98baed978916a41be", kill_on_drop: false }`
[INFO] [stdout] 6cbfe4a6cc8a9aa4f7c35252172ec7239ac532f6ea2dd3f98baed978916a41be