[INFO] cloning repository https://github.com/code0100fun/rust-fft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/code0100fun/rust-fft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcode0100fun%2Frust-fft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcode0100fun%2Frust-fft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5600ab6728b85cf90ebf19fd2e9c7a6b19f45f2
[INFO] checking code0100fun/rust-fft against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcode0100fun%2Frust-fft" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/code0100fun/rust-fft 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 git repo https://github.com/code0100fun/rust-fft
[INFO] finished tweaking git repo https://github.com/code0100fun/rust-fft
[INFO] tweaked toml for git repo https://github.com/code0100fun/rust-fft written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/code0100fun/rust-fft 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] [stderr] warning: path `/workspace/builds/worker-11/source/src/fft.rs` was erroneously implicitly accepted for library `fft`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] d858a95266a0df02bf615958b27d4d6bf757d9634e71361c96827fc563cb536c
[INFO] running `Command { std: "docker" "start" "-a" "d858a95266a0df02bf615958b27d4d6bf757d9634e71361c96827fc563cb536c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d858a95266a0df02bf615958b27d4d6bf757d9634e71361c96827fc563cb536c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d858a95266a0df02bf615958b27d4d6bf757d9634e71361c96827fc563cb536c", kill_on_drop: false }`
[INFO] [stdout] d858a95266a0df02bf615958b27d4d6bf757d9634e71361c96827fc563cb536c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 3dbab0135ee1fa7bec9035f13efccb4b224fab324b8a6d9db7431a0cd0c6031d
[INFO] running `Command { std: "docker" "start" "-a" "3dbab0135ee1fa7bec9035f13efccb4b224fab324b8a6d9db7431a0cd0c6031d", kill_on_drop: false }`
[INFO] [stderr] warning: path `/opt/rustwide/workdir/src/fft.rs` was erroneously implicitly accepted for library `fft`,
[INFO] [stderr] please rename the file to `src/lib.rs` or set lib.path in Cargo.toml
[INFO] [stderr]     Checking rustc-serialize v0.2.5
[INFO] [stdout] error: expected one of `:`, `<`, `=`, `where`, or `{`, found keyword `for`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/serialize.rs:193:21
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub trait Encodable for Sized? {
[INFO] [stdout]     |                     ^^^ expected one of `:`, `<`, `=`, `where`, or `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |             for i in range(0u, len) {
[INFO] [stdout]    |                            ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:59:28
[INFO] [stdout]    |
[INFO] [stdout] 59 |             for i in range(0u, len) {
[INFO] [stdout]    |                            ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:91:28
[INFO] [stdout]    |
[INFO] [stdout] 91 |             for i in range(0u, len) {
[INFO] [stdout]    |                            ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |             for i in range(0u, len) {
[INFO] [stdout]     |                            ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:159:28
[INFO] [stdout]     |
[INFO] [stdout] 159 |             for i in range(0u, len) {
[INFO] [stdout]     |                            ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:194:28
[INFO] [stdout]     |
[INFO] [stdout] 194 |             for i in range(0u, len) {
[INFO] [stdout]     |                            ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/collection_impls.rs:218:28
[INFO] [stdout]     |
[INFO] [stdout] 218 |             for i in range(0u, len) {
[INFO] [stdout]     |                            ^^ invalid suffix `u`
[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 one of `:`, `<`, `=`, `where`, or `{`, found keyword `for`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/base64.rs:73:20
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub trait ToBase64 for Sized? {
[INFO] [stdout]    |                    ^^^ expected one of `:`, `<`, `=`, `where`, or `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `<`, `=`, `where`, or `{`, found keyword `for`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/hex.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait ToHex for Sized? {
[INFO] [stdout]    |                 ^^^ expected one of `:`, `<`, `=`, `where`, or `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:428:57
[INFO] [stdout]     |
[INFO] [stdout] 428 |         _ if v.fract() != 0f64 => f64::to_str_digits(v, 6u),
[INFO] [stdout]     |                                                         ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:429:36
[INFO] [stdout]     |
[INFO] [stdout] 429 |         _ => f64::to_str_digits(v, 6u) + ".0",
[INFO] [stdout]     |                                    ^^ invalid suffix `u`
[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-0.2.5/src/json.rs:627:38
[INFO] [stdout]     |
[INFO] [stdout] 627 |         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-0.2.5/src/json.rs:898:38
[INFO] [stdout]     |
[INFO] [stdout] 898 |         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-0.2.5/src/json.rs:1051:43
[INFO] [stdout]      |
[INFO] [stdout] 1051 |             Json::String(ref s) => Some(s[]),
[INFO] [stdout]      |                                           ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:1403:26
[INFO] [stdout]      |
[INFO] [stdout] 1403 |             self.line += 1u;
[INFO] [stdout]      |                          ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:1404:24
[INFO] [stdout]      |
[INFO] [stdout] 1404 |             self.col = 1u;
[INFO] [stdout]      |                        ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:1406:25
[INFO] [stdout]      |
[INFO] [stdout] 1406 |             self.col += 1u;
[INFO] [stdout]      |                         ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:1543:23
[INFO] [stdout]      |
[INFO] [stdout] 1543 |         let mut exp = 0u;
[INFO] [stdout]      |                       ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:1581:21
[INFO] [stdout]      |
[INFO] [stdout] 1581 |         let mut i = 0u;
[INFO] [stdout]      |                     ^^ invalid suffix `u`
[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 `u` for number literal
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:1596:18
[INFO] [stdout]      |
[INFO] [stdout] 1596 |             i += 1u;
[INFO] [stdout]      |                  ^^ invalid suffix `u`
[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-0.2.5/src/json.rs:2146:62
[INFO] [stdout]      |
[INFO] [stdout] 2146 |         let idx = match names.iter().position(|n| *n == name[]) {
[INFO] [stdout]      |                   ----- while parsing this match expression  ^ expected expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `:`, `<`, `=`, `where`, or `{`, found keyword `for`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/json.rs:2305:18
[INFO] [stdout]      |
[INFO] [stdout] 2305 | pub trait ToJson for Sized? {
[INFO] [stdout]      |                  ^^^ expected one of `:`, `<`, `=`, `where`, or `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` due to 25 previous errors
[INFO] [stdout] error[E0463]: can't find crate for `unicode`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.2.5/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate unicode;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 24 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3dbab0135ee1fa7bec9035f13efccb4b224fab324b8a6d9db7431a0cd0c6031d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dbab0135ee1fa7bec9035f13efccb4b224fab324b8a6d9db7431a0cd0c6031d", kill_on_drop: false }`
[INFO] [stdout] 3dbab0135ee1fa7bec9035f13efccb4b224fab324b8a6d9db7431a0cd0c6031d