[INFO] fetching crate multi_stack_queue 0.3.0...
[INFO] testing multi_stack_queue-0.3.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate multi_stack_queue 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate multi_stack_queue 0.3.0
[INFO] finished tweaking crates.io crate multi_stack_queue 0.3.0
[INFO] tweaked toml for crates.io crate multi_stack_queue 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate multi_stack_queue 0.3.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4530010a14e8474ca7672e5e9d73dd72753602398b3b324b9c81e66cbe64c2f
[INFO] running `Command { std: "docker" "start" "-a" "e4530010a14e8474ca7672e5e9d73dd72753602398b3b324b9c81e66cbe64c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4530010a14e8474ca7672e5e9d73dd72753602398b3b324b9c81e66cbe64c2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4530010a14e8474ca7672e5e9d73dd72753602398b3b324b9c81e66cbe64c2f", kill_on_drop: false }`
[INFO] [stdout] e4530010a14e8474ca7672e5e9d73dd72753602398b3b324b9c81e66cbe64c2f
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ee6ba27af30ca34ddde4bea9ed8d466a86416edf77c4cfdaf815bdfc2363254
[INFO] running `Command { std: "docker" "start" "-a" "3ee6ba27af30ca34ddde4bea9ed8d466a86416edf77c4cfdaf815bdfc2363254", kill_on_drop: false }`
[INFO] [stderr]    Compiling multi_stack_queue v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "3ee6ba27af30ca34ddde4bea9ed8d466a86416edf77c4cfdaf815bdfc2363254", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ee6ba27af30ca34ddde4bea9ed8d466a86416edf77c4cfdaf815bdfc2363254", kill_on_drop: false }`
[INFO] [stdout] 3ee6ba27af30ca34ddde4bea9ed8d466a86416edf77c4cfdaf815bdfc2363254
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9ff817738fa915ebc46906b23f26b9b995f82e78f5a1c37517b54a6789bf1d6
[INFO] running `Command { std: "docker" "start" "-a" "e9ff817738fa915ebc46906b23f26b9b995f82e78f5a1c37517b54a6789bf1d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling multi_stack_queue v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/lib.rs:242:13
[INFO] [stdout]     |
[INFO] [stdout] 242 |         let a: MultiStackQueue<TestStruct, 16, 32> = MultiStackQueue::new();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "e9ff817738fa915ebc46906b23f26b9b995f82e78f5a1c37517b54a6789bf1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9ff817738fa915ebc46906b23f26b9b995f82e78f5a1c37517b54a6789bf1d6", kill_on_drop: false }`
[INFO] [stdout] e9ff817738fa915ebc46906b23f26b9b995f82e78f5a1c37517b54a6789bf1d6
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28cdab1e6ccd397d258f20e64e830cdaf9adfbe70ac36263710e1f52aa7ab9b1
[INFO] running `Command { std: "docker" "start" "-a" "28cdab1e6ccd397d258f20e64e830cdaf9adfbe70ac36263710e1f52aa7ab9b1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/lib.rs:242:13
[INFO] [stderr]     |
[INFO] [stderr] 242 |         let a: MultiStackQueue<TestStruct, 16, 32> = MultiStackQueue::new();
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `multi_stack_queue` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/multi_stack_queue-93ddfcec481e5093)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::fifo ... ok
[INFO] [stdout] test tests::creation ... ok
[INFO] [stdout] test tests::fill ... ok
[INFO] [stdout] test tests::push_once ... ok
[INFO] [stdout] test tests::push_and_pop_once ... ok
[INFO] [stdout] test tests::fill_overflow - should panic ... ok
[INFO] [stdout] test tests::push_and_pop_twice - should panic ... ok
[INFO] [stdout] test tests::pop_empty - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests multi_stack_queue
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - MultiStackQueue (line 39) ... ignored
[INFO] [stdout] test src/lib.rs - MultiStackQueue<T,N,M>::pop (line 155) ... ok
[INFO] [stdout] test src/lib.rs - MultiStackQueue<T,N,M>::new (line 88) ... ok
[INFO] [stdout] test src/lib.rs - MultiStackQueue<T,N,M>::is_empty (line 213) ... ok
[INFO] [stdout] test src/lib.rs - MultiStackQueue (line 57) ... ok
[INFO] [stdout] test src/lib.rs - MultiStackQueue<T,N,M>::is_full (line 195) ... ok
[INFO] [stdout] test src/lib.rs - MultiStackQueue<T,N,M>::push (line 117) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "28cdab1e6ccd397d258f20e64e830cdaf9adfbe70ac36263710e1f52aa7ab9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28cdab1e6ccd397d258f20e64e830cdaf9adfbe70ac36263710e1f52aa7ab9b1", kill_on_drop: false }`
[INFO] [stdout] 28cdab1e6ccd397d258f20e64e830cdaf9adfbe70ac36263710e1f52aa7ab9b1