[INFO] cloning repository https://github.com/tcsc/jagger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tcsc/jagger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Fjagger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Fjagger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9948c7f36e2481834db1bf1eccd61722266c1c79
[INFO] checking tcsc/jagger against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftcsc%2Fjagger" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tcsc/jagger on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tcsc/jagger
[INFO] finished tweaking git repo https://github.com/tcsc/jagger
[INFO] tweaked toml for git repo https://github.com/tcsc/jagger written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/tcsc/jagger already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e1f7be1bfba58d5aee5dd34cad9b341a219ffee123ff4a94d3f6ad52e5c48d1c
[INFO] running `Command { std: "docker" "start" "-a" "e1f7be1bfba58d5aee5dd34cad9b341a219ffee123ff4a94d3f6ad52e5c48d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1f7be1bfba58d5aee5dd34cad9b341a219ffee123ff4a94d3f6ad52e5c48d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f7be1bfba58d5aee5dd34cad9b341a219ffee123ff4a94d3f6ad52e5c48d1c", kill_on_drop: false }`
[INFO] [stdout] e1f7be1bfba58d5aee5dd34cad9b341a219ffee123ff4a94d3f6ad52e5c48d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d84558280854d2a67c71fa9598020621fd67d26cc6c68b11f340fe636e49d31
[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" "0d84558280854d2a67c71fa9598020621fd67d26cc6c68b11f340fe636e49d31", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.1
[INFO] [stderr]     Checking libc v0.1.3
[INFO] [stderr]     Checking log v0.2.5
[INFO] [stdout] error[E0425]: cannot find function `at_exit` in module `rt`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/log-0.2.5/src/lib.rs:535:9
[INFO] [stdout]     |
[INFO] [stdout] 535 |     rt::at_exit(|| {
[INFO] [stdout]     |         ^^^^^^^ not found in `rt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'rt': this public module should not exist and is highly likely to disappear
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/log-0.2.5/src/lib.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | use std::rt;
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: add `#![feature(rt)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found `"std"`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.1.3/rust/src/liblibc/lib.rs:79:46
[INFO] [stdout]    |
[INFO] [stdout] 79 | #[cfg(feature = "cargo-build")] extern crate "std" as core;
[INFO] [stdout]    |                                              ^^^^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::path::AsPath`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.1/src/lib.rs:50:26
[INFO] [stdout]    |
[INFO] [stdout] 50 | use std::path::{PathBuf, AsPath};
[INFO] [stdout]    |                          ^^^^^^
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          no `AsPath` in `path`
[INFO] [stdout]    |                          help: a similar name exists in the module: `Path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libc`
[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[E0433]: failed to resolve: could not find `old_io` in `std`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.1/src/lib.rs:329:10
[INFO] [stdout]     |
[INFO] [stdout] 329 |     std::old_io::stdio::set_stderr(Box::new(std::old_io::util::NullWriter));
[INFO] [stdout]     |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `old_io` in `std`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.1/src/lib.rs:329:50
[INFO] [stdout]     |
[INFO] [stdout] 329 |     std::old_io::stdio::set_stderr(Box::new(std::old_io::util::NullWriter));
[INFO] [stdout]     |                                                  ^^^^^^ could not find `old_io` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `set_exit_status` in module `env`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.1/src/lib.rs:328:10
[INFO] [stdout]     |
[INFO] [stdout] 328 |     env::set_exit_status(1);
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^ not found in `env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0d84558280854d2a67c71fa9598020621fd67d26cc6c68b11f340fe636e49d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d84558280854d2a67c71fa9598020621fd67d26cc6c68b11f340fe636e49d31", kill_on_drop: false }`
[INFO] [stdout] 0d84558280854d2a67c71fa9598020621fd67d26cc6c68b11f340fe636e49d31