[INFO] cloning repository https://github.com/knowit/rust-programming-ladder-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/knowit/rust-programming-ladder-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknowit%2Frust-programming-ladder-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknowit%2Frust-programming-ladder-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1f121477b9cc44b07f51b28f2dca5512e80865a2
[INFO] checking knowit/rust-programming-ladder-backend against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fknowit%2Frust-programming-ladder-backend" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/knowit/rust-programming-ladder-backend on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/knowit/rust-programming-ladder-backend
[INFO] finished tweaking git repo https://github.com/knowit/rust-programming-ladder-backend
[INFO] tweaked toml for git repo https://github.com/knowit/rust-programming-ladder-backend written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/knowit/rust-programming-ladder-backend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/graphql-rust/juniper`
[INFO] [stderr]     Updating git repository `https://github.com/graphql-rust/juniper_rocket`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded state v0.3.2
[INFO] [stderr]   Downloaded num-integer v0.1.35
[INFO] [stderr]   Downloaded pear v0.0.10
[INFO] [stderr]   Downloaded url v1.6.0
[INFO] [stderr]   Downloaded rand v0.3.18
[INFO] [stderr]   Downloaded either v1.3.0
[INFO] [stderr]   Downloaded serde_derive v1.0.19
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded chrono v0.4.0
[INFO] [stderr]   Downloaded num v0.1.40
[INFO] [stderr]   Downloaded rocket_codegen v0.3.3
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded num-iter v0.1.34
[INFO] [stderr]   Downloaded serde_derive_internals v0.17.0
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.2.0
[INFO] [stderr]   Downloaded httparse v1.2.3
[INFO] [stderr]   Downloaded num_cpus v1.7.0
[INFO] [stderr]   Downloaded serde v1.0.19
[INFO] [stderr]   Downloaded yansi v0.3.4
[INFO] [stderr]   Downloaded serde_json v1.0.6
[INFO] [stderr]   Downloaded byteorder v1.1.0
[INFO] [stderr]   Downloaded log v0.3.8
[INFO] [stderr]   Downloaded rocket v0.3.3
[INFO] [stderr]   Downloaded rayon-core v1.3.0
[INFO] [stderr]   Downloaded isatty v0.1.5
[INFO] [stderr]   Downloaded smallvec v0.4.4
[INFO] [stderr]   Downloaded redox_syscall v0.1.31
[INFO] [stderr]   Downloaded coco v0.1.1
[INFO] [stderr]   Downloaded pear_codegen v0.0.10
[INFO] [stderr]   Downloaded fuchsia-zircon v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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] 64814f2d7590e77c4f75aad041039dccf6b8cf6d0da76cffdcb30e28f8b4e5ad
[INFO] running `Command { std: "docker" "start" "-a" "64814f2d7590e77c4f75aad041039dccf6b8cf6d0da76cffdcb30e28f8b4e5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64814f2d7590e77c4f75aad041039dccf6b8cf6d0da76cffdcb30e28f8b4e5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64814f2d7590e77c4f75aad041039dccf6b8cf6d0da76cffdcb30e28f8b4e5ad", kill_on_drop: false }`
[INFO] [stdout] 64814f2d7590e77c4f75aad041039dccf6b8cf6d0da76cffdcb30e28f8b4e5ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "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] 149a6d48d8314a73b8ebb8b53561d7dbf038e8aaeb8941a45ddd839ac2d592b3
[INFO] running `Command { std: "docker" "start" "-a" "149a6d48d8314a73b8ebb8b53561d7dbf038e8aaeb8941a45ddd839ac2d592b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.33
[INFO] [stderr]    Compiling rayon-core v1.3.0
[INFO] [stderr]    Compiling matches v0.1.6
[INFO] [stderr]    Compiling yansi v0.3.4
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]     Checking serde v1.0.19
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling byteorder v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling untrusted v0.5.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling log v0.3.8
[INFO] [stdout] error[E0635]: unknown feature `const_atomic_bool_new`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/yansi-0.3.4/src/lib.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_atomic_bool_new))]
[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 `yansi`
[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" "149a6d48d8314a73b8ebb8b53561d7dbf038e8aaeb8941a45ddd839ac2d592b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "149a6d48d8314a73b8ebb8b53561d7dbf038e8aaeb8941a45ddd839ac2d592b3", kill_on_drop: false }`
[INFO] [stdout] 149a6d48d8314a73b8ebb8b53561d7dbf038e8aaeb8941a45ddd839ac2d592b3