[INFO] fetching crate ninjars 0.1.0...
[INFO] checking ninjars-0.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate ninjars 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ninjars 0.1.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ninjars 0.1.0
[INFO] finished tweaking crates.io crate ninjars 0.1.0
[INFO] tweaked toml for crates.io crate ninjars 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ninjars 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] ef5b4637e10e4553972803cc4f8e45d51a5e9ae045b95d7f7a6847488d7e4e98
[INFO] running `Command { std: "docker" "start" "-a" "ef5b4637e10e4553972803cc4f8e45d51a5e9ae045b95d7f7a6847488d7e4e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef5b4637e10e4553972803cc4f8e45d51a5e9ae045b95d7f7a6847488d7e4e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef5b4637e10e4553972803cc4f8e45d51a5e9ae045b95d7f7a6847488d7e4e98", kill_on_drop: false }`
[INFO] [stdout] ef5b4637e10e4553972803cc4f8e45d51a5e9ae045b95d7f7a6847488d7e4e98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--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] 02b94d621b38e719fdab2b377f45fa5491002e83e5f3954a69f32fe248b720cf
[INFO] running `Command { std: "docker" "start" "-a" "02b94d621b38e719fdab2b377f45fa5491002e83e5f3954a69f32fe248b720cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ninja-metrics v0.2.0
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling async-trait v0.1.39
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking ninja-parse v0.1.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking ninja-builder v0.1.0
[INFO] [stdout] error[E0635]: unknown feature `option_expect_none`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ninja-builder-0.1.0/src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(option_expect_none)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ninja-builder` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "02b94d621b38e719fdab2b377f45fa5491002e83e5f3954a69f32fe248b720cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02b94d621b38e719fdab2b377f45fa5491002e83e5f3954a69f32fe248b720cf", kill_on_drop: false }`
[INFO] [stdout] 02b94d621b38e719fdab2b377f45fa5491002e83e5f3954a69f32fe248b720cf