[INFO] cloning repository https://github.com/utkarshkukreti/draco
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/utkarshkukreti/draco" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fdraco", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fdraco'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32419ec3bc6d5f6e029bd29a595d64caf57e896c
[INFO] checking utkarshkukreti/draco against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Futkarshkukreti%2Fdraco" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/utkarshkukreti/draco on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/utkarshkukreti/draco
[INFO] finished tweaking git repo https://github.com/utkarshkukreti/draco
[INFO] tweaked toml for git repo https://github.com/utkarshkukreti/draco written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dde5d0df0129c20d81ae420821889b9a21da046b25e182f7fa4ce5dc23ee768
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6dde5d0df0129c20d81ae420821889b9a21da046b25e182f7fa4ce5dc23ee768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dde5d0df0129c20d81ae420821889b9a21da046b25e182f7fa4ce5dc23ee768", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dde5d0df0129c20d81ae420821889b9a21da046b25e182f7fa4ce5dc23ee768", kill_on_drop: false }`
[INFO] [stdout] 6dde5d0df0129c20d81ae420821889b9a21da046b25e182f7fa4ce5dc23ee768
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] 2b56a78d04fa72f842bb373df1085adf9b45d5b4865acb4a56754cd661004c71
[INFO] running `Command { std: "docker" "start" "-a" "2b56a78d04fa72f842bb373df1085adf9b45d5b4865acb4a56754cd661004c71", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling wasm-bindgen v0.2.73
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.23
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.73
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.73
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking js-sys v0.3.50
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.23
[INFO] [stderr]     Checking web-sys v0.3.50
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.23
[INFO] [stderr]     Checking draco v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking jfb v0.1.0 (/opt/rustwide/workdir/examples/jfb)
[INFO] [stderr]     Checking github_commits v0.1.0 (/opt/rustwide/workdir/examples/github_commits)
[INFO] [stderr]     Checking counter v0.1.0 (/opt/rustwide/workdir/examples/counter)
[INFO] [stderr]     Checking counters v0.1.0 (/opt/rustwide/workdir/examples/counters)
[INFO] [stderr]     Checking mouse_tracker v0.1.0 (/opt/rustwide/workdir/examples/mouse_tracker)
[INFO] [stderr]     Checking local_storage v0.1.0 (/opt/rustwide/workdir/examples/local_storage)
[INFO] [stderr]     Checking router v0.1.0 (/opt/rustwide/workdir/examples/router)
[INFO] [stderr]     Checking svg_clock v0.1.0 (/opt/rustwide/workdir/examples/svg_clock)
[INFO] [stderr]     Checking router_basic v0.1.0 (/opt/rustwide/workdir/examples/router_basic)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]  --> benches/../examples/jfb/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ref_focus v0.1.0 (/opt/rustwide/workdir/examples/ref_focus)
[INFO] [stderr]     Checking form v0.1.0 (/opt/rustwide/workdir/examples/form)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]  --> benches/../examples/jfb/src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{
[INFO] [stdout]   |     ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `XorShiftRng`
[INFO] [stdout]   --> benches/../examples/jfb/src/lib.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |             rng: XorShiftRng::from_seed([0; 16]),
[INFO] [stdout]    |                  ^^^^^^^^^^^ use of undeclared type `XorShiftRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `XorShiftRng` in this scope
[INFO] [stdout]   --> benches/../examples/jfb/src/lib.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 |     rng: XorShiftRng,
[INFO] [stdout]    |          ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `draco`
[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" "2b56a78d04fa72f842bb373df1085adf9b45d5b4865acb4a56754cd661004c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b56a78d04fa72f842bb373df1085adf9b45d5b4865acb4a56754cd661004c71", kill_on_drop: false }`
[INFO] [stdout] 2b56a78d04fa72f842bb373df1085adf9b45d5b4865acb4a56754cd661004c71