[INFO] fetching crate syndicate 0.10.0...
[INFO] testing syndicate-0.10.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate syndicate 0.10.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate syndicate 0.10.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate syndicate 0.10.0
[INFO] finished tweaking crates.io crate syndicate 0.10.0
[INFO] tweaked toml for crates.io crate syndicate 0.10.0 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "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-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2879ea833aa25fa5dea9f45779f4966217c321d7d65beea30cc4071b5f89737d
[INFO] running `Command { std: "docker" "start" "-a" "2879ea833aa25fa5dea9f45779f4966217c321d7d65beea30cc4071b5f89737d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2879ea833aa25fa5dea9f45779f4966217c321d7d65beea30cc4071b5f89737d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2879ea833aa25fa5dea9f45779f4966217c321d7d65beea30cc4071b5f89737d", kill_on_drop: false }`
[INFO] [stdout] 2879ea833aa25fa5dea9f45779f4966217c321d7d65beea30cc4071b5f89737d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7a37d0f4a03b9d412b9dd06910f3dac191d9583465e7d66e1a7b1c446f4885b
[INFO] running `Command { std: "docker" "start" "-a" "c7a37d0f4a03b9d412b9dd06910f3dac191d9583465e7d66e1a7b1c446f4885b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling tracing-core v0.1.19
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling sharded-slab v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling hmac v0.11.0
[INFO] [stderr]    Compiling sha2 v0.9.8
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling structopt v0.3.23
[INFO] [stderr]    Compiling tracing-futures v0.2.5
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling tokio-util v0.6.8
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling preserves v0.20.0
[INFO] [stderr]    Compiling tracing-subscriber v0.2.20
[INFO] [stderr]    Compiling preserves-schema v0.8.0
[INFO] [stderr]    Compiling syndicate v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/relay.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 |     fn handle_outbound_event(&mut self, t: &mut Activation, event: P::Event) -> Result<P::Event, Error> {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 54.62s
[INFO] running `Command { std: "docker" "inspect" "c7a37d0f4a03b9d412b9dd06910f3dac191d9583465e7d66e1a7b1c446f4885b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a37d0f4a03b9d412b9dd06910f3dac191d9583465e7d66e1a7b1c446f4885b", kill_on_drop: false }`
[INFO] [stdout] c7a37d0f4a03b9d412b9dd06910f3dac191d9583465e7d66e1a7b1c446f4885b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 930934b2dd9e5d95810dc0a21cfda0cad14fc50a19e4a36f8dd502c263689c19
[INFO] running `Command { std: "docker" "start" "-a" "930934b2dd9e5d95810dc0a21cfda0cad14fc50a19e4a36f8dd502c263689c19", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/relay.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 |     fn handle_outbound_event(&mut self, t: &mut Activation, event: P::Event) -> Result<P::Event, Error> {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling syndicate v0.10.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/relay.rs:341:41
[INFO] [stdout]     |
[INFO] [stdout] 341 |     fn handle_outbound_event(&mut self, t: &mut Activation, event: P::Event) -> Result<P::Event, Error> {
[INFO] [stdout]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` 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 17.81s
[INFO] running `Command { std: "docker" "inspect" "930934b2dd9e5d95810dc0a21cfda0cad14fc50a19e4a36f8dd502c263689c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "930934b2dd9e5d95810dc0a21cfda0cad14fc50a19e4a36f8dd502c263689c19", kill_on_drop: false }`
[INFO] [stdout] 930934b2dd9e5d95810dc0a21cfda0cad14fc50a19e4a36f8dd502c263689c19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 123678cc87ace4e7a6e1be45213810644f3d44b6129261bcbc4bfc83a8ad5391
[INFO] running `Command { std: "docker" "start" "-a" "123678cc87ace4e7a6e1be45213810644f3d44b6129261bcbc4bfc83a8ad5391", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/relay.rs:341:41
[INFO] [stderr]     |
[INFO] [stderr] 341 |     fn handle_outbound_event(&mut self, t: &mut Activation, event: P::Event) -> Result<P::Event, Error> {
[INFO] [stderr]     |                                         ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `syndicate` (lib) generated 1 warning
[INFO] [stderr] warning: `syndicate` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/syndicate-a957f051072d01be)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests syndicate
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "123678cc87ace4e7a6e1be45213810644f3d44b6129261bcbc4bfc83a8ad5391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123678cc87ace4e7a6e1be45213810644f3d44b6129261bcbc4bfc83a8ad5391", kill_on_drop: false }`
[INFO] [stdout] 123678cc87ace4e7a6e1be45213810644f3d44b6129261bcbc4bfc83a8ad5391