[INFO] fetching crate c-arrow 0.1.4...
[INFO] testing c-arrow-0.1.4 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate c-arrow 0.1.4 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate c-arrow 0.1.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fadc7f360f7a65f55dadd9d42bdecbda3c852539fa7623652e2db289b902173f
[INFO] running `Command { std: "docker" "start" "-a" "fadc7f360f7a65f55dadd9d42bdecbda3c852539fa7623652e2db289b902173f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fadc7f360f7a65f55dadd9d42bdecbda3c852539fa7623652e2db289b902173f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fadc7f360f7a65f55dadd9d42bdecbda3c852539fa7623652e2db289b902173f", kill_on_drop: false }`
[INFO] [stdout] fadc7f360f7a65f55dadd9d42bdecbda3c852539fa7623652e2db289b902173f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cd863176975fed5423c40b061541f26df8f8edc026834ed180a72e51b51e880
[INFO] running `Command { std: "docker" "start" "-a" "7cd863176975fed5423c40b061541f26df8f8edc026834ed180a72e51b51e880", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling c-arrow v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "7cd863176975fed5423c40b061541f26df8f8edc026834ed180a72e51b51e880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd863176975fed5423c40b061541f26df8f8edc026834ed180a72e51b51e880", kill_on_drop: false }`
[INFO] [stdout] 7cd863176975fed5423c40b061541f26df8f8edc026834ed180a72e51b51e880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e69e437137b8196964b642c380f0eb7e92cc60b7557a81e52d9d4cd5d41ac7ea
[INFO] running `Command { std: "docker" "start" "-a" "e69e437137b8196964b642c380f0eb7e92cc60b7557a81e52d9d4cd5d41ac7ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling c-arrow v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "e69e437137b8196964b642c380f0eb7e92cc60b7557a81e52d9d4cd5d41ac7ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e69e437137b8196964b642c380f0eb7e92cc60b7557a81e52d9d4cd5d41ac7ea", kill_on_drop: false }`
[INFO] [stdout] e69e437137b8196964b642c380f0eb7e92cc60b7557a81e52d9d4cd5d41ac7ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f2f85bedd5e856518d207a27da6f71626dd1d7bc2b28dbc3208a764f5d18005
[INFO] running `Command { std: "docker" "start" "-a" "2f2f85bedd5e856518d207a27da6f71626dd1d7bc2b28dbc3208a764f5d18005", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/c_arrow-b88df82026bf628f)
[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[E0433]: failed to resolve: use of undeclared type `Stack`
[INFO] [stdout]  --> src/lib.rs:27:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut stack: Stack<char> = Stack::new();
[INFO] [stdout]   |                              ^^^^^ use of undeclared type `Stack`
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Stack` in this scope
[INFO] [stdout]  --> src/lib.rs:27:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut stack: Stack<char> = Stack::new();
[INFO] [stdout]   |                ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `back_of` in this scope
[INFO] [stdout]   --> src/lib.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     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 0.12s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "2f2f85bedd5e856518d207a27da6f71626dd1d7bc2b28dbc3208a764f5d18005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f2f85bedd5e856518d207a27da6f71626dd1d7bc2b28dbc3208a764f5d18005", kill_on_drop: false }`
[INFO] [stdout] 2f2f85bedd5e856518d207a27da6f71626dd1d7bc2b28dbc3208a764f5d18005
