[INFO] cloning repository https://github.com/kevinburke/rustclient
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevinburke/rustclient" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinburke%2Frustclient", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinburke%2Frustclient'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea502150fa697396c6aee42ebc9ac4aa2f5cc638
[INFO] checking kevinburke/rustclient against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinburke%2Frustclient" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevinburke/rustclient on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kevinburke/rustclient
[INFO] finished tweaking git repo https://github.com/kevinburke/rustclient
[INFO] tweaked toml for git repo https://github.com/kevinburke/rustclient written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/kevinburke/rustclient already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (url) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused manifest key: dependencies.url.url
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded url v0.2.16
[INFO] [stderr]   Downloaded rustc-serialize v0.2.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e8d223d818da585309bbdd59e36b3ef714a0f3c2e0ed23c477027a28645771e
[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" "0e8d223d818da585309bbdd59e36b3ef714a0f3c2e0ed23c477027a28645771e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e8d223d818da585309bbdd59e36b3ef714a0f3c2e0ed23c477027a28645771e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8d223d818da585309bbdd59e36b3ef714a0f3c2e0ed23c477027a28645771e", kill_on_drop: false }`
[INFO] [stdout] 0e8d223d818da585309bbdd59e36b3ef714a0f3c2e0ed23c477027a28645771e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cf1ee88f68edf9b5cfa55a00310891f22e783013f77d28fc716c1f43e61b783
[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" "2cf1ee88f68edf9b5cfa55a00310891f22e783013f77d28fc716c1f43e61b783", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (url) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: unused manifest key: dependencies.url.url
[INFO] [stderr]     Checking rustc-serialize v0.2.8
[INFO] [stderr]     Checking matches v0.1.2
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:647:39
[INFO] [stdout]     |
[INFO] [stdout] 647 |         let out = str::from_utf8(&buf[]).unwrap();
[INFO] [stdout]     |                                       ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:918:39
[INFO] [stdout]     |
[INFO] [stdout] 918 |         let out = str::from_utf8(&buf[]).unwrap();
[INFO] [stdout]     |                                       ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:1071:44
[INFO] [stdout]      |
[INFO] [stdout] 1071 |             Json::String(ref s) => Some(&s[]),
[INFO] [stdout]      |                                            ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:2166:63
[INFO] [stdout]      |
[INFO] [stdout] 2166 |         let idx = match names.iter().position(|n| *n == &name[]) {
[INFO] [stdout]      |                   ----- while parsing this match expression   ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:3376:43
[INFO] [stdout]      |
[INFO] [stdout] 3376 |         let json_str = from_utf8(&mem_buf[]).unwrap();
[INFO] [stdout]      |                                           ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:3392:43
[INFO] [stdout]      |
[INFO] [stdout] 3392 |         let json_str = from_utf8(&mem_buf[]).unwrap();
[INFO] [stdout]      |                                           ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `us` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:3427:27
[INFO] [stdout]      |
[INFO] [stdout] 3427 |         for i in range(0, 4us) {
[INFO] [stdout]      |                           ^^^ invalid suffix `us`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:3432:45
[INFO] [stdout]      |
[INFO] [stdout] 3432 |             let printed = from_utf8(&writer[]).unwrap();
[INFO] [stdout]      |                                             ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `us` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:3808:42
[INFO] [stdout]      |
[INFO] [stdout] 3808 |         tree_map.insert("a".to_string(), 1us);
[INFO] [stdout]      |                                          ^^^ invalid suffix `us`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `us` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/json.rs:3812:42
[INFO] [stdout]      |
[INFO] [stdout] 3812 |         hash_map.insert("a".to_string(), 1us);
[INFO] [stdout]      |                                          ^^^ invalid suffix `us`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `unicode`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.8/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate unicode;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[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" "2cf1ee88f68edf9b5cfa55a00310891f22e783013f77d28fc716c1f43e61b783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf1ee88f68edf9b5cfa55a00310891f22e783013f77d28fc716c1f43e61b783", kill_on_drop: false }`
[INFO] [stdout] 2cf1ee88f68edf9b5cfa55a00310891f22e783013f77d28fc716c1f43e61b783