[INFO] fetching crate cursebox 0.2.10...
[INFO] testing cursebox-0.2.10 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate cursebox 0.2.10 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cursebox 0.2.10 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cursebox 0.2.10
[INFO] finished tweaking crates.io crate cursebox 0.2.10
[INFO] tweaked toml for crates.io crate cursebox 0.2.10 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate cursebox 0.2.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e309d6526e4a1076760c082654975f4a626e158961d7671e7f46409c35282b07
[INFO] running `Command { std: "docker" "start" "-a" "e309d6526e4a1076760c082654975f4a626e158961d7671e7f46409c35282b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e309d6526e4a1076760c082654975f4a626e158961d7671e7f46409c35282b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e309d6526e4a1076760c082654975f4a626e158961d7671e7f46409c35282b07", kill_on_drop: false }`
[INFO] [stdout] e309d6526e4a1076760c082654975f4a626e158961d7671e7f46409c35282b07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dbf9b12b19e1040f0f43a2c1887e3719af88bf37b7bac9e70366e7f4801c350
[INFO] running `Command { std: "docker" "start" "-a" "4dbf9b12b19e1040f0f43a2c1887e3719af88bf37b7bac9e70366e7f4801c350", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling ptr v0.2.2
[INFO] [stderr]    Compiling hash-table v0.2.5
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling containers v0.9.10
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling i-o v0.4.7
[INFO] [stderr]    Compiling heap v0.1.0
[INFO] [stderr]    Compiling rel v0.2.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling idem v0.4.0
[INFO] [stderr]    Compiling libc-interface v0.1.2
[INFO] [stderr]    Compiling utf v0.1.5
[INFO] [stderr]    Compiling flags v0.1.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling system-call v0.1.3
[INFO] [stderr]    Compiling chn v0.1.1
[INFO] [stderr]    Compiling util v0.1.2
[INFO] [stderr]    Compiling fallible v0.1.3
[INFO] [stderr]    Compiling idem v0.1.1
[INFO] [stderr]    Compiling null-terminated v0.3.14
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/null-terminated-0.3.14/src/lib.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | #![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]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[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 `null-terminated`
[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" "4dbf9b12b19e1040f0f43a2c1887e3719af88bf37b7bac9e70366e7f4801c350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dbf9b12b19e1040f0f43a2c1887e3719af88bf37b7bac9e70366e7f4801c350", kill_on_drop: false }`
[INFO] [stdout] 4dbf9b12b19e1040f0f43a2c1887e3719af88bf37b7bac9e70366e7f4801c350