[INFO] fetching crate smr 0.1.2...
[INFO] testing smr-0.1.2 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take3
[INFO] extracting crate smr 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate smr 0.1.2 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smr 0.1.2
[INFO] finished tweaking crates.io crate smr 0.1.2
[INFO] tweaked toml for crates.io crate smr 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded procfs v0.10.1
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[INFO] [stderr]   Downloaded seccomp-sys v0.1.3
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 375297560be90e5ca9d1619e1ff81b463d63bc560627ff3cb6ffd0948c864784
[INFO] running `Command { std: "docker" "start" "-a" "375297560be90e5ca9d1619e1ff81b463d63bc560627ff3cb6ffd0948c864784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "375297560be90e5ca9d1619e1ff81b463d63bc560627ff3cb6ffd0948c864784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "375297560be90e5ca9d1619e1ff81b463d63bc560627ff3cb6ffd0948c864784", kill_on_drop: false }`
[INFO] [stdout] 375297560be90e5ca9d1619e1ff81b463d63bc560627ff3cb6ffd0948c864784
[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=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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 55a548cef6c7457f45a88bc47b6ee2da63ccfe6abfc6ddab130e4e0e017c9c4d
[INFO] running `Command { std: "docker" "start" "-a" "55a548cef6c7457f45a88bc47b6ee2da63ccfe6abfc6ddab130e4e0e017c9c4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
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[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling ringbuffer v0.8.5
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling procfs v0.10.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling prctl v1.0.0
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling phf_macros v0.10.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling tokio-macros v1.8.2
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling filedescriptor v0.8.2
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ipc-channel v0.15.0
[INFO] [stderr]    Compiling smr v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `tokio::sync::RwLockReadGuard` that must be used
[INFO] [stdout]    --> src/pm.rs:185:7
[INFO] [stdout]     |
[INFO] [stdout] 185 |       term.read().await;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if unused the RwLock will immediately unlock
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` 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 19.09s
[INFO] running `Command { std: "docker" "inspect" "55a548cef6c7457f45a88bc47b6ee2da63ccfe6abfc6ddab130e4e0e017c9c4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55a548cef6c7457f45a88bc47b6ee2da63ccfe6abfc6ddab130e4e0e017c9c4d", kill_on_drop: false }`
[INFO] [stdout] 55a548cef6c7457f45a88bc47b6ee2da63ccfe6abfc6ddab130e4e0e017c9c4d
[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=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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 36be177d61d7c48bdb1e2461067c42878ec1e3dde0b34d9f095aafc6febb6b55
[INFO] running `Command { std: "docker" "start" "-a" "36be177d61d7c48bdb1e2461067c42878ec1e3dde0b34d9f095aafc6febb6b55", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.89
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stdout] warning: unused `tokio::sync::RwLockReadGuard` that must be used
[INFO] [stdout]    --> src/pm.rs:185:7
[INFO] [stdout]     |
[INFO] [stdout] 185 |       term.read().await;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if unused the RwLock will immediately unlock
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rayon v1.6.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling smr v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `tokio::sync::RwLockReadGuard` that must be used
[INFO] [stdout]    --> src/pm.rs:185:7
[INFO] [stdout]     |
[INFO] [stdout] 185 |       term.read().await;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if unused the RwLock will immediately unlock
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.75s
[INFO] running `Command { std: "docker" "inspect" "36be177d61d7c48bdb1e2461067c42878ec1e3dde0b34d9f095aafc6febb6b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36be177d61d7c48bdb1e2461067c42878ec1e3dde0b34d9f095aafc6febb6b55", kill_on_drop: false }`
[INFO] [stdout] 36be177d61d7c48bdb1e2461067c42878ec1e3dde0b34d9f095aafc6febb6b55
[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=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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a1fb9103e7d88f558dba2efc5815376a245042f4ab907e889eabe9600f00a9ee
[INFO] running `Command { std: "docker" "start" "-a" "a1fb9103e7d88f558dba2efc5815376a245042f4ab907e889eabe9600f00a9ee", kill_on_drop: false }`
[INFO] [stderr] warning: unused `tokio::sync::RwLockReadGuard` that must be used
[INFO] [stderr]    --> src/pm.rs:185:7
[INFO] [stderr]     |
[INFO] [stderr] 185 |       term.read().await;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if unused the RwLock will immediately unlock
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `smr` (lib) generated 1 warning
[INFO] [stderr] warning: `smr` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/smr-0f25a75facabc629)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test pm_test::test_pm_slow_one_worker ... ok
[INFO] [stdout] test pm_test::test_pm_slow_many_workers ... ok
[INFO] [stdout] test pm_test::test_pm ... ok
[INFO] [stdout] test scheduler_test::test_terminate_worker ... ok
[INFO] [stdout] test scheduler_test::test_sched_crash ... ok
[INFO] [stdout] test scheduler_test::test_sched_scale_out_in ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 15.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a1fb9103e7d88f558dba2efc5815376a245042f4ab907e889eabe9600f00a9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1fb9103e7d88f558dba2efc5815376a245042f4ab907e889eabe9600f00a9ee", kill_on_drop: false }`
[INFO] [stdout] a1fb9103e7d88f558dba2efc5815376a245042f4ab907e889eabe9600f00a9ee