[INFO] cloning repository https://github.com/ereichert/wlb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ereichert/wlb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fereichert%2Fwlb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fereichert%2Fwlb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12874a742cf41f51235cfccb62cee017fefb0bf8
[INFO] checking ereichert/wlb against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fereichert%2Fwlb" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ereichert/wlb on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ereichert/wlb
[INFO] finished tweaking git repo https://github.com/ereichert/wlb
[INFO] tweaked toml for git repo https://github.com/ereichert/wlb written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ereichert/wlb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded router v0.4.0
[INFO] [stderr]   Downloaded inotify v0.2.3
[INFO] [stderr]   Downloaded miow v0.1.3
[INFO] [stderr]   Downloaded notify v2.6.3
[INFO] [stderr]   Downloaded pest v0.3.3
[INFO] [stderr]   Downloaded filetime v0.1.10
[INFO] [stderr]   Downloaded fsevent v0.2.15
[INFO] [stderr]   Downloaded hyper v0.9.10
[INFO] [stderr]   Downloaded sequence_trie v0.0.13
[INFO] [stderr]   Downloaded mount v0.2.1
[INFO] [stderr]   Downloaded fsevent-sys v0.1.5
[INFO] [stderr]   Downloaded url v1.2.0
[INFO] [stderr]   Downloaded handlebars v0.20.5
[INFO] [stderr]   Downloaded traitobject v0.0.3
[INFO] [stderr]   Downloaded staticfile v0.3.0
[INFO] [stderr]   Downloaded regex-syntax v0.3.5
[INFO] [stderr]   Downloaded regex v0.1.77
[INFO] [stderr]   Downloaded walkdir v0.1.8
[INFO] [stderr]   Downloaded matches v0.1.2
[INFO] [stderr]   Downloaded handlebars-iron v0.18.0
[INFO] [stderr]   Downloaded tojson_macros v0.2.4
[INFO] [stderr]   Downloaded iron v0.4.0
[INFO] [stderr]   Downloaded net2 v0.2.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b33451f125aa703917feae5384bd03d7e161927328235ee24208e0ca43d801a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b33451f125aa703917feae5384bd03d7e161927328235ee24208e0ca43d801a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b33451f125aa703917feae5384bd03d7e161927328235ee24208e0ca43d801a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b33451f125aa703917feae5384bd03d7e161927328235ee24208e0ca43d801a", kill_on_drop: false }`
[INFO] [stdout] 4b33451f125aa703917feae5384bd03d7e161927328235ee24208e0ca43d801a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 621f2a34f1439fc562bf7e6d8792b4795f894c8704250997ad439036a6cf3169
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "621f2a34f1439fc562bf7e6d8792b4795f894c8704250997ad439036a6cf3169", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking traitobject v0.0.3
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking cfg-if v0.1.0
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.3.5
[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking sequence_trie v0.0.13
[INFO] [stderr]    Compiling tojson_macros v0.2.4
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tojson_macros-0.2.4/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_derive, quote, plugin, plugin_registrar, rustc_private)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: subsumed by `#[proc_macro_derive]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tojson_macros-0.2.4/src/lib.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(custom_derive, quote, plugin, plugin_registrar, rustc_private)]
[INFO] [stdout]   |                           ^^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `rustc_plugin`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tojson_macros-0.2.4/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate rustc_plugin;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0463, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tojson_macros`
[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] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "621f2a34f1439fc562bf7e6d8792b4795f894c8704250997ad439036a6cf3169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "621f2a34f1439fc562bf7e6d8792b4795f894c8704250997ad439036a6cf3169", kill_on_drop: false }`
[INFO] [stdout] 621f2a34f1439fc562bf7e6d8792b4795f894c8704250997ad439036a6cf3169