[INFO] cloning repository https://github.com/ARwMq9b6/qrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ARwMq9b6/qrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FARwMq9b6%2Fqrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FARwMq9b6%2Fqrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13f6f5a6eed4bcbb5ad91393e02522c5a19fd789
[INFO] testing ARwMq9b6/qrs against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FARwMq9b6%2Fqrs" "/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/ARwMq9b6/qrs on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ARwMq9b6/qrs
[INFO] finished tweaking git repo https://github.com/ARwMq9b6/qrs
[INFO] tweaked toml for git repo https://github.com/ARwMq9b6/qrs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ARwMq9b6/qrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-error v1.1.0
[INFO] [stderr]   Downloaded mime v0.2.3
[INFO] [stderr]   Downloaded deflate v0.7.5
[INFO] [stderr]   Downloaded gcc v0.3.45
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.11
[INFO] [stderr]   Downloaded rocket_codegen v0.2.4
[INFO] [stderr]   Downloaded num-rational v0.1.36
[INFO] [stderr]   Downloaded num_cpus v1.3.0
[INFO] [stderr]   Downloaded clap v2.22.1
[INFO] [stderr]   Downloaded unicode-bidi v0.2.5
[INFO] [stderr]   Downloaded httparse v1.2.1
[INFO] [stderr]   Downloaded rustc-serialize v0.3.23
[INFO] [stderr]   Downloaded unicode-segmentation v1.1.0
[INFO] [stderr]   Downloaded qrcode v0.2.1
[INFO] [stderr]   Downloaded serde v0.9.12
[INFO] [stderr]   Downloaded syn v0.11.9
[INFO] [stderr]   Downloaded idna v0.1.0
[INFO] [stderr]   Downloaded rocket v0.2.4
[INFO] [stderr]   Downloaded rocket_contrib v0.2.4
[INFO] [stderr]   Downloaded lazy_static v0.2.5
[INFO] [stderr]   Downloaded derive-error-chain v0.10.0
[INFO] [stderr]   Downloaded num-integer v0.1.33
[INFO] [stderr]   Downloaded hyper v0.10.5
[INFO] [stderr]   Downloaded log v0.3.7
[INFO] [stderr]   Downloaded state v0.2.0
[INFO] [stderr]   Downloaded backtrace v0.3.0
[INFO] [stderr]   Downloaded futures v0.1.11
[INFO] [stderr]   Downloaded c_linked_list v1.1.0
[INFO] [stderr]   Downloaded rayon v0.6.0
[INFO] [stderr]   Downloaded time v0.1.36
[INFO] [stderr]   Downloaded thread-id v3.0.0
[INFO] [stderr]   Downloaded term_size v0.2.3
[INFO] [stderr]   Downloaded vec_map v0.7.0
[INFO] [stderr]   Downloaded serde_json v0.9.9
[INFO] [stderr]   Downloaded gif v0.9.1
[INFO] [stderr]   Downloaded cookie v0.6.1
[INFO] [stderr]   Downloaded handlebars v0.25.2
[INFO] [stderr]   Downloaded get_if_addrs v0.4.0
[INFO] [stderr]   Downloaded image v0.12.3
[INFO] [stderr]   Downloaded regex v0.2.1
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] [stderr]   Downloaded regex-syntax v0.4.0
[INFO] [stderr]   Downloaded backtrace-sys v0.1.10
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a5a451c887bdf8aad7831b59094cc15eb9c0e1940c8006e3096348987519b0b
[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" "9a5a451c887bdf8aad7831b59094cc15eb9c0e1940c8006e3096348987519b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a5a451c887bdf8aad7831b59094cc15eb9c0e1940c8006e3096348987519b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a5a451c887bdf8aad7831b59094cc15eb9c0e1940c8006e3096348987519b0b", kill_on_drop: false }`
[INFO] [stdout] 9a5a451c887bdf8aad7831b59094cc15eb9c0e1940c8006e3096348987519b0b
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", 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] 6a0a103cc5eb7d2f052b1978fabca76334f3616f9f7fa9f593b8dcfecb2a075e
[INFO] running `Command { std: "docker" "start" "-a" "6a0a103cc5eb7d2f052b1978fabca76334f3616f9f7fa9f593b8dcfecb2a075e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling version_check v0.1.0
[INFO] [stderr]    Compiling log v0.3.7
[INFO] [stderr]    Compiling rustc-serialize v0.3.23
[INFO] [stderr]    Compiling gcc v0.3.45
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling httparse v1.2.1
[INFO] [stderr]    Compiling adler32 v1.0.0
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling serde v0.9.12
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling state v0.2.0
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/state-0.2.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr] error: could not compile `state` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6a0a103cc5eb7d2f052b1978fabca76334f3616f9f7fa9f593b8dcfecb2a075e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0a103cc5eb7d2f052b1978fabca76334f3616f9f7fa9f593b8dcfecb2a075e", kill_on_drop: false }`
[INFO] [stdout] 6a0a103cc5eb7d2f052b1978fabca76334f3616f9f7fa9f593b8dcfecb2a075e