[INFO] cloning repository https://github.com/lpgo/mongodb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lpgo/mongodb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flpgo%2Fmongodb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flpgo%2Fmongodb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e1cb0272e57c4e2f0be583215ce9ec0bcf86c8ff
[INFO] checking lpgo/mongodb against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flpgo%2Fmongodb" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lpgo/mongodb on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lpgo/mongodb
[INFO] finished tweaking git repo https://github.com/lpgo/mongodb
[INFO] tweaked toml for git repo https://github.com/lpgo/mongodb written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/lpgo/mongodb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kernel32-sys v0.1.4
[INFO] [stderr]   Downloaded winapi v0.2.4
[INFO] [stderr]   Downloaded rand v0.3.11
[INFO] [stderr]   Downloaded bson v0.2.1
[INFO] [stderr]   Downloaded textnonce v0.1.1
[INFO] [stderr]   Downloaded num v0.1.27
[INFO] [stderr]   Downloaded scan_fmt v0.1.1
[INFO] [stderr]   Downloaded gcc v0.3.19
[INFO] [stderr]   Downloaded separator v0.3.0
[INFO] [stderr]   Downloaded linked-hash-map v0.0.9
[INFO] [stderr]   Downloaded time v0.1.33
[INFO] [stderr]   Downloaded nalgebra v0.2.23
[INFO] [stderr]   Downloaded chrono v0.2.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c729462a179a0337c3ad45da021a2ab70315811703320497bd16c22f331ccd94
[INFO] running `Command { std: "docker" "start" "-a" "c729462a179a0337c3ad45da021a2ab70315811703320497bd16c22f331ccd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c729462a179a0337c3ad45da021a2ab70315811703320497bd16c22f331ccd94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c729462a179a0337c3ad45da021a2ab70315811703320497bd16c22f331ccd94", kill_on_drop: false }`
[INFO] [stdout] c729462a179a0337c3ad45da021a2ab70315811703320497bd16c22f331ccd94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e82531286edd4246972f67cfa24d83958eb250d535d7d91c8c27f13093e293d
[INFO] running `Command { std: "docker" "start" "-a" "7e82531286edd4246972f67cfa24d83958eb250d535d7d91c8c27f13093e293d", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.4
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking rustc-serialize v0.3.16
[INFO] [stderr]    Compiling gcc v0.3.19
[INFO] [stderr]     Checking serde v0.7.0
[INFO] [stderr]     Checking byteorder v0.3.13
[INFO] [stderr]     Checking linked-hash-map v0.0.9
[INFO] [stderr]     Checking separator v0.3.0
[INFO] [stderr]     Checking bufstream v0.1.1
[INFO] [stderr]     Checking scan_fmt v0.1.1
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.16/src/serialize.rs:145:45
[INFO] [stdout]     |
[INFO] [stdout] 145 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling advapi32-sys v0.1.2
[INFO] [stderr]    Compiling kernel32-sys v0.1.4
[INFO] [stderr]    Compiling rust-crypto v0.2.34
[INFO] [stderr]     Checking time v0.1.33
[INFO] [stderr]     Checking rand v0.3.11
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7e82531286edd4246972f67cfa24d83958eb250d535d7d91c8c27f13093e293d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e82531286edd4246972f67cfa24d83958eb250d535d7d91c8c27f13093e293d", kill_on_drop: false }`
[INFO] [stdout] 7e82531286edd4246972f67cfa24d83958eb250d535d7d91c8c27f13093e293d