[INFO] fetching crate qecs 0.0.7...
[INFO] testing qecs-0.0.7 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate qecs 0.0.7 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate qecs 0.0.7 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qecs 0.0.7
[INFO] finished tweaking crates.io crate qecs 0.0.7
[INFO] tweaked toml for crates.io crate qecs 0.0.7 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec_map v0.4.0
[INFO] [stderr]   Downloaded qecs-core v0.0.17
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 22a0e1ae5e3e0e9ead842bc21254f2e37a0ddf73c9290b1f333e9771475de7c9
[INFO] running `Command { std: "docker" "start" "-a" "22a0e1ae5e3e0e9ead842bc21254f2e37a0ddf73c9290b1f333e9771475de7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22a0e1ae5e3e0e9ead842bc21254f2e37a0ddf73c9290b1f333e9771475de7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22a0e1ae5e3e0e9ead842bc21254f2e37a0ddf73c9290b1f333e9771475de7c9", kill_on_drop: false }`
[INFO] [stdout] 22a0e1ae5e3e0e9ead842bc21254f2e37a0ddf73c9290b1f333e9771475de7c9
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] edad49a5ed7cc33b7bf3da62c887d6af8f80aee6efdc8b411a7f018d8315e9bd
[INFO] running `Command { std: "docker" "start" "-a" "edad49a5ed7cc33b7bf3da62c887d6af8f80aee6efdc8b411a7f018d8315e9bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling downcast v0.2.3
[INFO] [stderr]    Compiling vec_map v0.4.0
[INFO] [stdout] error[E0599]: no method named `get_type_id` found for reference `&T` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/downcast-0.2.3/src/lib.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     obj.get_type_id()
[INFO] [stdout]    |         ^^^^^^^^^^^ method not found in `&T`
[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 E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `downcast` 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" "edad49a5ed7cc33b7bf3da62c887d6af8f80aee6efdc8b411a7f018d8315e9bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edad49a5ed7cc33b7bf3da62c887d6af8f80aee6efdc8b411a7f018d8315e9bd", kill_on_drop: false }`
[INFO] [stdout] edad49a5ed7cc33b7bf3da62c887d6af8f80aee6efdc8b411a7f018d8315e9bd