[INFO] cloning repository https://github.com/jsdw/seamless
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jsdw/seamless" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fseamless", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fseamless'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c4d67f68c005d4378ba6353433a9b3569ea4359
[INFO] checking jsdw/seamless against stable for pr-85048-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fseamless" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jsdw/seamless on toolchain stable
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+stable" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jsdw/seamless
[INFO] finished tweaking git repo https://github.com/jsdw/seamless
[INFO] tweaked toml for git repo https://github.com/jsdw/seamless written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/jsdw/seamless already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+stable" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded futures-task v0.3.15
[INFO] [stderr]   Downloaded futures v0.3.15
[INFO] [stderr]   Downloaded warp v0.3.0
[INFO] [stderr]   Downloaded serde_json v1.0.61
[INFO] [stderr]   Downloaded utf-8 v0.7.5
[INFO] [stderr]   Downloaded tinyvec v1.1.1
[INFO] [stderr]   Downloaded mio v0.7.8
[INFO] [stderr]   Downloaded miow v0.3.6
[INFO] [stderr]   Downloaded url v2.2.1
[INFO] [stderr]   Downloaded tungstenite v0.12.0
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] [stderr]   Downloaded pin-project-lite v0.2.4
[INFO] [stderr]   Downloaded sha-1 v0.9.4
[INFO] [stderr]   Downloaded http v0.2.3
[INFO] [stderr]   Downloaded rand_hc v0.3.0
[INFO] [stderr]   Downloaded idna v0.2.2
[INFO] [stderr]   Downloaded futures-util v0.3.15
[INFO] [stderr]   Downloaded futures-executor v0.3.15
[INFO] [stderr]   Downloaded tokio-tungstenite v0.13.0
[INFO] [stderr]   Downloaded futures-channel v0.3.15
[INFO] [stderr]   Downloaded pin-project v1.0.5
[INFO] [stderr]   Downloaded bytes v1.0.1
[INFO] [stderr]   Downloaded tracing v0.1.24
[INFO] [stderr]   Downloaded syn v1.0.59
[INFO] [stderr]   Downloaded httparse v1.3.5
[INFO] [stderr]   Downloaded rand_chacha v0.3.0
[INFO] [stderr]   Downloaded serde_urlencoded v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.5
[INFO] [stderr]   Downloaded input_buffer v0.4.0
[INFO] [stderr]   Downloaded const_fn v0.4.5
[INFO] [stderr]   Downloaded tokio v1.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.70
[INFO] [stderr]   Downloaded standback v0.2.15
[INFO] [stderr]   Downloaded ctor v0.1.18
[INFO] [stderr]   Downloaded bumpalo v3.6.1
[INFO] [stderr]   Downloaded difference v2.0.0
[INFO] [stderr]   Downloaded pretty_assertions v0.6.1
[INFO] [stderr]   Downloaded output_vt100 v0.1.2
[INFO] [stderr]   Downloaded indexmap v1.6.1
[INFO] [stderr]   Downloaded figment v0.10.3
[INFO] [stderr]   Downloaded thiserror-impl v1.0.23
[INFO] [stderr]   Downloaded lock_api v0.4.2
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.70
[INFO] [stderr]   Downloaded tempfile v3.2.0
[INFO] [stderr]   Downloaded twoway v0.1.8
[INFO] [stderr]   Downloaded http-body v0.4.0
[INFO] [stderr]   Downloaded trybuild v1.0.53
[INFO] [stderr]   Downloaded byteorder v1.4.2
[INFO] [stderr]   Downloaded inlinable_string v0.1.14
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.70
[INFO] [stderr]   Downloaded pin-project-internal v1.0.5
[INFO] [stderr]   Downloaded h2 v0.3.0
[INFO] [stderr]   Downloaded hyper v0.14.4
[INFO] [stderr]   Downloaded headers-core v0.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.70
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.70
[INFO] [stderr]   Downloaded time v0.2.25
[INFO] [stderr]   Downloaded rand_core v0.6.2
[INFO] [stderr]   Downloaded thiserror v1.0.23
[INFO] [stderr]   Downloaded headers v0.3.3
[INFO] [stderr]   Downloaded seamless_macros v0.9.0
[INFO] [stderr]   Downloaded buf_redux v0.8.4
[INFO] [stderr]   Downloaded multipart v0.17.1
[INFO] [stderr]   Downloaded tokio-util v0.6.7
[INFO] [stderr]   Downloaded tokio-stream v0.1.3
[INFO] [stderr]   Downloaded tracing-futures v0.2.5
[INFO] [stderr]   Downloaded rand v0.8.3
[INFO] [stderr]   Downloaded async-trait v0.1.42
[INFO] [stderr]   Downloaded seamless v0.9.0
[INFO] [stderr]   Downloaded futures-macro v0.3.15
[INFO] [stderr]   Downloaded futures-sink v0.3.15
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded quote v1.0.8
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded serde_derive v1.0.120
[INFO] [stderr]   Downloaded serde v1.0.120
[INFO] [stderr]   Downloaded socket2 v0.3.19
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded signal-hook-registry v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+stable" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59dd009c5028842e4c188f41b35dba7c2165ed5c7fd7cd4a1447559f596ad8ef
[INFO] running `Command { std: "docker" "start" "-a" "59dd009c5028842e4c188f41b35dba7c2165ed5c7fd7cd4a1447559f596ad8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59dd009c5028842e4c188f41b35dba7c2165ed5c7fd7cd4a1447559f596ad8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59dd009c5028842e4c188f41b35dba7c2165ed5c7fd7cd4a1447559f596ad8ef", kill_on_drop: false }`
[INFO] [stdout] 59dd009c5028842e4c188f41b35dba7c2165ed5c7fd7cd4a1447559f596ad8ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+stable" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 610bb3d80d0eff5084711784cb30d0698b31109f689e6ddc87a0bda9536c4913
[INFO] running `Command { std: "docker" "start" "-a" "610bb3d80d0eff5084711784cb30d0698b31109f689e6ddc87a0bda9536c4913", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.59
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.120
[INFO] [stderr]    Compiling serde v1.0.120
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling inlinable_string v0.1.14
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling state v0.4.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling trybuild v1.0.53
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.59/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=ab4e26e71d017b77 -C extra-filename=-ab4e26e71d017b77 --out-dir /opt/rustwide/target/debug/build/syn-ab4e26e71d017b77 -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "610bb3d80d0eff5084711784cb30d0698b31109f689e6ddc87a0bda9536c4913", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610bb3d80d0eff5084711784cb30d0698b31109f689e6ddc87a0bda9536c4913", kill_on_drop: false }`
[INFO] [stdout] 610bb3d80d0eff5084711784cb30d0698b31109f689e6ddc87a0bda9536c4913