[INFO] fetching crate middleman 0.3.1...
[INFO] testing middleman-0.3.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate middleman 0.3.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate middleman 0.3.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate middleman 0.3.1
[INFO] finished tweaking crates.io crate middleman 0.3.1
[INFO] tweaked toml for crates.io crate middleman 0.3.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0355ff24ecebef01e362b0bea60725fe287fce5e42b8890ac2eb4ffe19f91fd7
[INFO] running `Command { std: "docker" "start" "-a" "0355ff24ecebef01e362b0bea60725fe287fce5e42b8890ac2eb4ffe19f91fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0355ff24ecebef01e362b0bea60725fe287fce5e42b8890ac2eb4ffe19f91fd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0355ff24ecebef01e362b0bea60725fe287fce5e42b8890ac2eb4ffe19f91fd7", kill_on_drop: false }`
[INFO] [stdout] 0355ff24ecebef01e362b0bea60725fe287fce5e42b8890ac2eb4ffe19f91fd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3627937c411ab0ef5918d80aac33a9cd5d78af4c75cab69bb0e6a4ab1c2cb86e
[INFO] running `Command { std: "docker" "start" "-a" "3627937c411ab0ef5918d80aac33a9cd5d78af4c75cab69bb0e6a4ab1c2cb86e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling middleman v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/structs.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |                 let mut vec = self.buf.drain(0..buf_end)
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "3627937c411ab0ef5918d80aac33a9cd5d78af4c75cab69bb0e6a4ab1c2cb86e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3627937c411ab0ef5918d80aac33a9cd5d78af4c75cab69bb0e6a4ab1c2cb86e", kill_on_drop: false }`
[INFO] [stdout] 3627937c411ab0ef5918d80aac33a9cd5d78af4c75cab69bb0e6a4ab1c2cb86e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47d3b87ef61cad3aa10505d1b6e50dc66b5238a977e8d762a21ce254c917d8cd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47d3b87ef61cad3aa10505d1b6e50dc66b5238a977e8d762a21ce254c917d8cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling middleman v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/structs.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |                 let mut vec = self.buf.drain(0..buf_end)
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/structs.rs:313:18
[INFO] [stdout]     |
[INFO] [stdout] 313 |                 let mut vec = self.buf.drain(0..buf_end)
[INFO] [stdout]     |                     ----^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tests.rs:532:41
[INFO] [stdout]     |
[INFO] [stdout] 532 | ...                   let mut stream = streams.get_mut(&token).unwrap();
[INFO] [stdout]     |                           ----^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stdout]    --> src/tests.rs:226:28
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 TOK_A => { a.recv_all_map(&mut work); },
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stdout]    --> src/tests.rs:227:28
[INFO] [stdout]     |
[INFO] [stdout] 227 |                 TOK_B => { b.recv_all_map(&mut work); },
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stdout]    --> src/tests.rs:344:13
[INFO] [stdout]     |
[INFO] [stdout] 344 | /             a.recv_all_map::<_, Complex>(|_mm, msg| {
[INFO] [stdout] 345 | |                 assert_eq!(&msg, &struct_form);
[INFO] [stdout] 346 | |                 to_go -= 1;
[INFO] [stdout] 347 | |             });
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `Command { std: "docker" "inspect" "47d3b87ef61cad3aa10505d1b6e50dc66b5238a977e8d762a21ce254c917d8cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47d3b87ef61cad3aa10505d1b6e50dc66b5238a977e8d762a21ce254c917d8cd", kill_on_drop: false }`
[INFO] [stdout] 47d3b87ef61cad3aa10505d1b6e50dc66b5238a977e8d762a21ce254c917d8cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7988c2823d5ddcb8d16a90f93015f2600a5ec5f0251b01ae837d68eaa437a92b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7988c2823d5ddcb8d16a90f93015f2600a5ec5f0251b01ae837d68eaa437a92b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/structs.rs:313:18
[INFO] [stderr]     |
[INFO] [stderr] 313 |                 let mut vec = self.buf.drain(0..buf_end)
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/structs.rs:313:18
[INFO] [stderr]     |
[INFO] [stderr] 313 |                 let mut vec = self.buf.drain(0..buf_end)
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tests.rs:532:41
[INFO] [stderr]     |
[INFO] [stderr] 532 | ...                   let mut stream = streams.get_mut(&token).unwrap();
[INFO] [stderr]     |                           ----^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stderr]    --> src/tests.rs:226:28
[INFO] [stderr]     |
[INFO] [stderr] 226 |                 TOK_A => { a.recv_all_map(&mut work); },
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stderr]    --> src/tests.rs:227:28
[INFO] [stderr]     |
[INFO] [stderr] 227 |                 TOK_B => { b.recv_all_map(&mut work); },
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` in tuple element 1 that must be used
[INFO] [stderr]    --> src/tests.rs:344:13
[INFO] [stderr]     |
[INFO] [stderr] 344 | /             a.recv_all_map::<_, Complex>(|_mm, msg| {
[INFO] [stderr] 345 | |                 assert_eq!(&msg, &struct_form);
[INFO] [stderr] 346 | |                 to_go -= 1;
[INFO] [stderr] 347 | |             });
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/middleman-2863b92e551b8fa6
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::not_ready ... FAILED
[INFO] [stdout] test tests::echo_client_std ... ok
[INFO] [stdout] test tests::count_together ... ok
[INFO] [stdout] test tests::single_send_recv ... ok
[INFO] [stdout] test tests::safe_echo_client ... ok
[INFO] [stdout] test tests::simple_packed ... ok
[INFO] [stdout] test tests::is_ready ... ok
[INFO] [stdout] test tests::recv_blocking ... ok
[INFO] [stdout] test tests::send_a_lot ... ok
[INFO] [stdout] test tests::packed_best_case ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::not_ready stdout ----
[INFO] [stdout] note: test did not panic as expected
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::not_ready
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 9 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "7988c2823d5ddcb8d16a90f93015f2600a5ec5f0251b01ae837d68eaa437a92b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7988c2823d5ddcb8d16a90f93015f2600a5ec5f0251b01ae837d68eaa437a92b", kill_on_drop: false }`
[INFO] [stdout] 7988c2823d5ddcb8d16a90f93015f2600a5ec5f0251b01ae837d68eaa437a92b
