[INFO] fetching crate timely 0.12.0...
[INFO] testing timely-0.12.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate timely 0.12.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate timely 0.12.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timely 0.12.0
[INFO] finished tweaking crates.io crate timely 0.12.0
[INFO] tweaked toml for crates.io crate timely 0.12.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate timely 0.12.0 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded timely_bytes v0.12.0
[INFO] [stderr]   Downloaded timely_logging v0.12.0
[INFO] [stderr]   Downloaded abomonation_derive v0.5.0
[INFO] [stderr]   Downloaded timely_communication v0.12.0
[INFO] [stderr]   Downloaded syn v1.0.63
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d67299321e3b82c3c37366698069291661004dcd8ba29af105e2bba78b4d37f
[INFO] running `Command { std: "docker" "start" "-a" "6d67299321e3b82c3c37366698069291661004dcd8ba29af105e2bba78b4d37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d67299321e3b82c3c37366698069291661004dcd8ba29af105e2bba78b4d37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d67299321e3b82c3c37366698069291661004dcd8ba29af105e2bba78b4d37f", kill_on_drop: false }`
[INFO] [stdout] 6d67299321e3b82c3c37366698069291661004dcd8ba29af105e2bba78b4d37f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2079a0b1b4154bebb16788fe41ee8a36a04a98819625ee89af4d21596c3e30a
[INFO] running `Command { std: "docker" "start" "-a" "d2079a0b1b4154bebb16788fe41ee8a36a04a98819625ee89af4d21596c3e30a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling timely_bytes v0.12.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling timely_logging v0.12.0
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling timely_communication v0.12.0
[INFO] [stderr]    Compiling timely v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synchronization/sequence.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         let mut activator = activator_borrow.as_mut().unwrap();
[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/synchronization/sequence.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         let mut activator = activator_borrow.as_mut().unwrap();
[INFO] [stdout]     |                             ----^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/progress/frontier.rs:511:36
[INFO] [stdout]     |
[INFO] [stdout] 511 |             frontier: self.frontier.clone(),
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.14s
[INFO] running `Command { std: "docker" "inspect" "d2079a0b1b4154bebb16788fe41ee8a36a04a98819625ee89af4d21596c3e30a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2079a0b1b4154bebb16788fe41ee8a36a04a98819625ee89af4d21596c3e30a", kill_on_drop: false }`
[INFO] [stdout] d2079a0b1b4154bebb16788fe41ee8a36a04a98819625ee89af4d21596c3e30a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d6ecc13d873fda96b7aa296d1e17d02a4b1f2917fcf07f7a98ccd9a48300a29
[INFO] running `Command { std: "docker" "start" "-a" "3d6ecc13d873fda96b7aa296d1e17d02a4b1f2917fcf07f7a98ccd9a48300a29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synchronization/sequence.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         let mut activator = activator_borrow.as_mut().unwrap();
[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/synchronization/sequence.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         let mut activator = activator_borrow.as_mut().unwrap();
[INFO] [stdout]     |                             ----^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/progress/frontier.rs:511:36
[INFO] [stdout]     |
[INFO] [stdout] 511 |             frontier: self.frontier.clone(),
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling timely v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]   --> examples/rc.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Test {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 11 |     field: Rc<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synchronization/sequence.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         let mut activator = activator_borrow.as_mut().unwrap();
[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/synchronization/sequence.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         let mut activator = activator_borrow.as_mut().unwrap();
[INFO] [stdout]     |                             ----^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/progress/frontier.rs:511:36
[INFO] [stdout]     |
[INFO] [stdout] 511 |             frontier: self.frontier.clone(),
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `timely` (lib test); 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name timely --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="getopts"' --cfg 'feature="getopts-dep"' -C metadata=11ba7ea1f46008de -C extra-filename=-11ba7ea1f46008de --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-faa44d906494d09a.rlib --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-be5eae8ff796ab30.so --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-ba16ecfbac7ef251.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-c76ce9249d5ca926.rlib --extern getopts_dep=/opt/rustwide/target/debug/deps/libgetopts-13defed71efe450c.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-2e4d72e18d5ada89.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-98cf20e310db43ed.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-95132fa8b67d7cf6.so --extern timely_bytes=/opt/rustwide/target/debug/deps/libtimely_bytes-cc1efdeeb322a10a.rlib --extern timely_communication=/opt/rustwide/target/debug/deps/libtimely_communication-e8822e6a85e8c29a.rlib --extern timely_logging=/opt/rustwide/target/debug/deps/libtimely_logging-701b2b6d9ce1548f.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3d6ecc13d873fda96b7aa296d1e17d02a4b1f2917fcf07f7a98ccd9a48300a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d6ecc13d873fda96b7aa296d1e17d02a4b1f2917fcf07f7a98ccd9a48300a29", kill_on_drop: false }`
[INFO] [stdout] 3d6ecc13d873fda96b7aa296d1e17d02a4b1f2917fcf07f7a98ccd9a48300a29
[INFO] testing timely-0.12.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate timely 0.12.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate timely 0.12.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timely 0.12.0
[INFO] finished tweaking crates.io crate timely 0.12.0
[INFO] tweaked toml for crates.io crate timely 0.12.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate timely 0.12.0 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" "+beta-2024-02-10" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9621b2e1f7c0ac49d1f2d25688308943416d7a2872e1251989c1fb4f90ae217d
[INFO] running `Command { std: "docker" "start" "-a" "9621b2e1f7c0ac49d1f2d25688308943416d7a2872e1251989c1fb4f90ae217d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9621b2e1f7c0ac49d1f2d25688308943416d7a2872e1251989c1fb4f90ae217d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9621b2e1f7c0ac49d1f2d25688308943416d7a2872e1251989c1fb4f90ae217d", kill_on_drop: false }`
[INFO] [stdout] 9621b2e1f7c0ac49d1f2d25688308943416d7a2872e1251989c1fb4f90ae217d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa6ce59d3b2bc77cd73da6a2c0dacca287a63ef18f34e07ac407c29a62ac2f5e
[INFO] running `Command { std: "docker" "start" "-a" "fa6ce59d3b2bc77cd73da6a2c0dacca287a63ef18f34e07ac407c29a62ac2f5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling timely_bytes v0.12.0
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling timely_logging v0.12.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling futures-util v0.3.13
[INFO] [stderr]    Compiling timely_communication v0.12.0
[INFO] [stderr]    Compiling timely v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synchronization/sequence.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         let mut activator = activator_borrow.as_mut().unwrap();
[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/synchronization/sequence.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         let mut activator = activator_borrow.as_mut().unwrap();
[INFO] [stdout]     |                             ----^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/progress/frontier.rs:511:36
[INFO] [stdout]     |
[INFO] [stdout] 511 |             frontier: self.frontier.clone(),
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.95s
[INFO] running `Command { std: "docker" "inspect" "fa6ce59d3b2bc77cd73da6a2c0dacca287a63ef18f34e07ac407c29a62ac2f5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa6ce59d3b2bc77cd73da6a2c0dacca287a63ef18f34e07ac407c29a62ac2f5e", kill_on_drop: false }`
[INFO] [stdout] fa6ce59d3b2bc77cd73da6a2c0dacca287a63ef18f34e07ac407c29a62ac2f5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96a6ebf3effa369dc0b326aa566d10966787035ac7a6b3926c546833d3fd6790
[INFO] running `Command { std: "docker" "start" "-a" "96a6ebf3effa369dc0b326aa566d10966787035ac7a6b3926c546833d3fd6790", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synchronization/sequence.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         let mut activator = activator_borrow.as_mut().unwrap();
[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/synchronization/sequence.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         let mut activator = activator_borrow.as_mut().unwrap();
[INFO] [stdout]     |                             ----^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/progress/frontier.rs:511:36
[INFO] [stdout]     |
[INFO] [stdout] 511 |             frontier: self.frontier.clone(),
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling timely v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]   --> examples/rc.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Test {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 11 |     field: Rc<usize>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Test` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/synchronization/sequence.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |                         let mut activator = activator_borrow.as_mut().unwrap();
[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/synchronization/sequence.rs:191:29
[INFO] [stdout]     |
[INFO] [stdout] 191 |                         let mut activator = activator_borrow.as_mut().unwrap();
[INFO] [stdout]     |                             ----^^^^^^^^^
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/progress/frontier.rs:511:36
[INFO] [stdout]     |
[INFO] [stdout] 511 |             frontier: self.frontier.clone(),
[INFO] [stdout]     |                                    ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `timely` (lib test); 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustc --crate-name timely --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' --cfg 'feature="getopts"' --cfg 'feature="getopts-dep"' -C metadata=bdcd496bbc1973a3 -C extra-filename=-bdcd496bbc1973a3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-99d880717a8ef896.rlib --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-f1bb867ee7450973.so --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-d65321af1a1f3701.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-71595d5cf304919e.rlib --extern getopts_dep=/opt/rustwide/target/debug/deps/libgetopts-4d82be29dc2b9546.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-19ee6e65fd5367d3.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-8aff73f6a3da28e1.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-a6fb4f8089eba267.so --extern timely_bytes=/opt/rustwide/target/debug/deps/libtimely_bytes-6e6db3f80999a8c5.rlib --extern timely_communication=/opt/rustwide/target/debug/deps/libtimely_communication-ed28579d9ddf97fb.rlib --extern timely_logging=/opt/rustwide/target/debug/deps/libtimely_logging-20b130a163445388.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "96a6ebf3effa369dc0b326aa566d10966787035ac7a6b3926c546833d3fd6790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a6ebf3effa369dc0b326aa566d10966787035ac7a6b3926c546833d3fd6790", kill_on_drop: false }`
[INFO] [stdout] 96a6ebf3effa369dc0b326aa566d10966787035ac7a6b3926c546833d3fd6790
