[INFO] fetching crate lark-span 0.1.0...
[INFO] checking lark-span-0.1.0 against try#7c3a44cf5f95fa5cf164a312bdcf845157af7093 for pr-77325
[INFO] extracting crate lark-span 0.1.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate lark-span 0.1.0 on toolchain 7c3a44cf5f95fa5cf164a312bdcf845157af7093
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lark-span 0.1.0
[INFO] finished tweaking crates.io crate lark-span 0.1.0
[INFO] tweaked toml for crates.io crate lark-span 0.1.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ce08fdbc65e05ec2a50bb4518c6717751b51a28698e7cb7ce51b9a7b90c2ac5
[INFO] running `Command { std: "docker" "start" "-a" "1ce08fdbc65e05ec2a50bb4518c6717751b51a28698e7cb7ce51b9a7b90c2ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ce08fdbc65e05ec2a50bb4518c6717751b51a28698e7cb7ce51b9a7b90c2ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce08fdbc65e05ec2a50bb4518c6717751b51a28698e7cb7ce51b9a7b90c2ac5", kill_on_drop: false }`
[INFO] [stdout] 1ce08fdbc65e05ec2a50bb4518c6717751b51a28698e7cb7ce51b9a7b90c2ac5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+7c3a44cf5f95fa5cf164a312bdcf845157af7093" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85a5c36e7c8b9ea2521936a6082454461dbded420c975dd77dfcec8b0888adda
[INFO] running `Command { std: "docker" "start" "-a" "85a5c36e7c8b9ea2521936a6082454461dbded420c975dd77dfcec8b0888adda", 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]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking render-tree v0.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking lark-intern v0.1.0
[INFO] [stderr]     Checking lark-string v0.1.0
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lark-string-0.1.0/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] [stderr]     Checking idna v0.1.5
[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] error: could not compile `lark-string`
[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" "85a5c36e7c8b9ea2521936a6082454461dbded420c975dd77dfcec8b0888adda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85a5c36e7c8b9ea2521936a6082454461dbded420c975dd77dfcec8b0888adda", kill_on_drop: false }`
[INFO] [stdout] 85a5c36e7c8b9ea2521936a6082454461dbded420c975dd77dfcec8b0888adda