[INFO] cloning repository https://github.com/Cifram/simplectic-noise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cifram/simplectic-noise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCifram%2Fsimplectic-noise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCifram%2Fsimplectic-noise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c8d228119cb293d6ce1fe229a1baa43893f6b303
[INFO] checking Cifram/simplectic-noise against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCifram%2Fsimplectic-noise" "/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/Cifram/simplectic-noise on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Cifram/simplectic-noise
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/Cifram/simplectic-noise
[INFO] tweaked toml for git repo https://github.com/Cifram/simplectic-noise written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Cifram/simplectic-noise already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/PistonDevelopers/image.git`
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/num`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-serialize v0.2.7
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 785bfc932947c80733d213ccb6802ad4db364749f660392f3796be978532eaac
[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" "785bfc932947c80733d213ccb6802ad4db364749f660392f3796be978532eaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "785bfc932947c80733d213ccb6802ad4db364749f660392f3796be978532eaac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "785bfc932947c80733d213ccb6802ad4db364749f660392f3796be978532eaac", kill_on_drop: false }`
[INFO] [stdout] 785bfc932947c80733d213ccb6802ad4db364749f660392f3796be978532eaac
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bda03b0c3e0ed5ecec970f8d990cef1a6a542d501b201d3690dd161392989821
[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" "bda03b0c3e0ed5ecec970f8d990cef1a6a542d501b201d3690dd161392989821", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-serialize v0.2.7
[INFO] [stderr]     Checking simplectic-noise v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `unstable`
[INFO] [stdout]   --> src/lib.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![allow(unstable)]
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:630:39
[INFO] [stdout]     |
[INFO] [stdout] 630 |         let out = str::from_utf8(&buf[]).unwrap();
[INFO] [stdout]     |                                       ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:901:39
[INFO] [stdout]     |
[INFO] [stdout] 901 |         let out = str::from_utf8(&buf[]).unwrap();
[INFO] [stdout]     |                                       ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:1054:44
[INFO] [stdout]      |
[INFO] [stdout] 1054 |             Json::String(ref s) => Some(&s[]),
[INFO] [stdout]      |                                            ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:2149:63
[INFO] [stdout]      |
[INFO] [stdout] 2149 |         let idx = match names.iter().position(|n| *n == &name[]) {
[INFO] [stdout]      |                   ----- while parsing this match expression   ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `unstable`
[INFO] [stdout]    --> src/simplectic.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 | #[allow(unstable)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:3359:43
[INFO] [stdout]      |
[INFO] [stdout] 3359 |         let json_str = from_utf8(&mem_buf[]).unwrap();
[INFO] [stdout]      |                                           ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:3375:43
[INFO] [stdout]      |
[INFO] [stdout] 3375 |         let json_str = from_utf8(&mem_buf[]).unwrap();
[INFO] [stdout]      |                                           ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `us` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:3410:27
[INFO] [stdout]      |
[INFO] [stdout] 3410 |         for i in range(0, 4us) {
[INFO] [stdout]      |                           ^^^ invalid suffix `us`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected expression, found `]`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:3415:45
[INFO] [stdout]      |
[INFO] [stdout] 3415 |             let printed = from_utf8(&writer[]).unwrap();
[INFO] [stdout]      |                                             ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `us` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:3791:42
[INFO] [stdout]      |
[INFO] [stdout] 3791 |         tree_map.insert("a".to_string(), 1us);
[INFO] [stdout]      |                                          ^^^ invalid suffix `us`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `us` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/json.rs:3795:42
[INFO] [stdout]      |
[INFO] [stdout] 3795 |         hash_map.insert("a".to_string(), 1us);
[INFO] [stdout]      |                                          ^^^ invalid suffix `us`
[INFO] [stdout]      |
[INFO] [stdout]      = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::Float`
[INFO] [stdout]   --> src/gradient.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::num::Float;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `unicode`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.7/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate unicode;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` due to 12 previous errors
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::num::Float`, `std::num::NumCast`
[INFO] [stdout]   --> src/math.rs:17:22
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::num::{self, Float, NumCast};
[INFO] [stdout]    |                      ^^^^^  ^^^^^^^ no `NumCast` in `num`
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::rand`
[INFO] [stdout]   --> src/seed.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::rand::{Rand, Rng, SeedableRng, XorShiftRng};
[INFO] [stdout]    |          ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::SignedInt`
[INFO] [stdout]   --> src/seed.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::num::SignedInt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^ no `SignedInt` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::num::cast`, `std::num::Float`
[INFO] [stdout]   --> src/simplectic.rs:33:16
[INFO] [stdout]    |
[INFO] [stdout] 33 | use std::num::{cast, Float};
[INFO] [stdout]    |                ^^^^  ^^^^^ no `Float` in `num`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                no `cast` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `cast` in module `num`
[INFO] [stdout]   --> src/math.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 |     num::cast(x).unwrap()
[INFO] [stdout]    |          ^^^^ not found in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range_inclusive` in module `std::iter`
[INFO] [stdout]   --> src/seed.rs:34:50
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut x_values: Vec<u8> = ::std::iter::range_inclusive(0, (TABLE_SIZE - 1) as u8).collect();
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^^^ not found in `std::iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bda03b0c3e0ed5ecec970f8d990cef1a6a542d501b201d3690dd161392989821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda03b0c3e0ed5ecec970f8d990cef1a6a542d501b201d3690dd161392989821", kill_on_drop: false }`
[INFO] [stdout] bda03b0c3e0ed5ecec970f8d990cef1a6a542d501b201d3690dd161392989821