[INFO] cloning repository https://github.com/timboudreau/treiber_stack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timboudreau/treiber_stack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboudreau%2Ftreiber_stack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboudreau%2Ftreiber_stack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a378b89fb0d44e89abc11c5e4b342540bbd2726c
[INFO] testing timboudreau/treiber_stack against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimboudreau%2Ftreiber_stack" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/timboudreau/treiber_stack
[INFO] finished tweaking git repo https://github.com/timboudreau/treiber_stack
[INFO] tweaked toml for git repo https://github.com/timboudreau/treiber_stack written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/timboudreau/treiber_stack on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/timboudreau/treiber_stack 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 822618419dcb7728d1c26eb8b2921ddf897107e3f0e9a494389fe7cca9333f95
[INFO] running `Command { std: "docker" "start" "-a" "822618419dcb7728d1c26eb8b2921ddf897107e3f0e9a494389fe7cca9333f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "822618419dcb7728d1c26eb8b2921ddf897107e3f0e9a494389fe7cca9333f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "822618419dcb7728d1c26eb8b2921ddf897107e3f0e9a494389fe7cca9333f95", kill_on_drop: false }`
[INFO] [stdout] 822618419dcb7728d1c26eb8b2921ddf897107e3f0e9a494389fe7cca9333f95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00e9512a85020c4fa2c67dd29d5f028cd05d9cdd90da9107ecaf10ed6df24625
[INFO] running `Command { std: "docker" "start" "-a" "00e9512a85020c4fa2c67dd29d5f028cd05d9cdd90da9107ecaf10ed6df24625", kill_on_drop: false }`
[INFO] [stderr]    Compiling arc-swap v1.7.1
[INFO] [stderr]    Compiling treiber_stack v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "00e9512a85020c4fa2c67dd29d5f028cd05d9cdd90da9107ecaf10ed6df24625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e9512a85020c4fa2c67dd29d5f028cd05d9cdd90da9107ecaf10ed6df24625", kill_on_drop: false }`
[INFO] [stdout] 00e9512a85020c4fa2c67dd29d5f028cd05d9cdd90da9107ecaf10ed6df24625
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7399e93c5f6801759a77fb3d5170f81dbb6b257a6075eff03ff5ed4d8f00768f
[INFO] running `Command { std: "docker" "start" "-a" "7399e93c5f6801759a77fb3d5170f81dbb6b257a6075eff03ff5ed4d8f00768f", kill_on_drop: false }`
[INFO] [stderr]    Compiling treiber_stack v1.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/lib.rs:859:13
[INFO] [stdout]     |
[INFO] [stdout] 859 |             h.join();
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 859 |             let _ = h.join();
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "7399e93c5f6801759a77fb3d5170f81dbb6b257a6075eff03ff5ed4d8f00768f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7399e93c5f6801759a77fb3d5170f81dbb6b257a6075eff03ff5ed4d8f00768f", kill_on_drop: false }`
[INFO] [stdout] 7399e93c5f6801759a77fb3d5170f81dbb6b257a6075eff03ff5ed4d8f00768f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1e25e49d4aca670a9c7ceef2fc280144f7806faa3aa199a99c378f3bee458270
[INFO] running `Command { std: "docker" "start" "-a" "1e25e49d4aca670a9c7ceef2fc280144f7806faa3aa199a99c378f3bee458270", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/lib.rs:859:13
[INFO] [stderr]     |
[INFO] [stderr] 859 |             h.join();
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 859 |             let _ = h.join();
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `treiber_stack` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/treiber_stack-dfc72fd6727c84dc)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test treiber_stack_tests::test_from_and_into ... ok
[INFO] [stdout] test treiber_stack_tests::test_pop_fn ... ok
[INFO] [stdout] test treiber_stack_tests::test_simple ... ok
[INFO] [stdout] test treiber_stack_tests::test_pop_fn_filter ... ok
[INFO] [stdout] test treiber_stack_tests::test_threaded ... FAILED
[INFO] [stderr] 
[INFO] [stderr] thread '<unknown>' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow, aborting
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/treiber_stack-dfc72fd6727c84dc` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "1e25e49d4aca670a9c7ceef2fc280144f7806faa3aa199a99c378f3bee458270", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e25e49d4aca670a9c7ceef2fc280144f7806faa3aa199a99c378f3bee458270", kill_on_drop: false }`
[INFO] [stdout] 1e25e49d4aca670a9c7ceef2fc280144f7806faa3aa199a99c378f3bee458270