[INFO] updating cached repository https://github.com/Melkonka/MelkonTD
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Melkonka/MelkonTD
[INFO] [stderr]    c7b01ca..3e9568b  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3e9568b7440570e7b77341eda03ea4bdd983facf
[INFO] checking Melkonka/MelkonTD against try#4662032ab74cd44d423120d08d251dfead4914a0 for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMelkonka%2FMelkonTD" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Melkonka/MelkonTD on toolchain 4662032ab74cd44d423120d08d251dfead4914a0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Melkonka/MelkonTD
[INFO] removed path dependency utils from git repo https://github.com/Melkonka/MelkonTD
[INFO] finished tweaking git repo https://github.com/Melkonka/MelkonTD
[INFO] tweaked toml for git repo https://github.com/Melkonka/MelkonTD written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Melkonka/MelkonTD already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (utils) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (utils) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a573a0b7f99df4b56face03ae4cb92e0dea4ea099ea3bcafc7b1c2c1b7585e37
[INFO] running `"docker" "start" "-a" "a573a0b7f99df4b56face03ae4cb92e0dea4ea099ea3bcafc7b1c2c1b7585e37"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (utils) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking mint v0.5.5
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling tinystr v0.3.2
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling cpal v0.11.0
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking claxon v0.4.2
[INFO] [stderr]     Checking fluent-syntax v0.9.3
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling unic-langid-impl v0.8.0
[INFO] [stderr]     Checking utils v0.0.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:83:3
[INFO] [stderr]    |
[INFO] [stderr] 83 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:77:3
[INFO] [stderr]    |
[INFO] [stderr] 77 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:13:3
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:45:3
[INFO] [stderr]    |
[INFO] [stderr] 45 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:37:3
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:29:3
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `experimental` in this scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:14:3
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[experimental]
[INFO] [stderr]    |   ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `output` on type `std::process::Output`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:17:36
[INFO] [stderr]    |
[INFO] [stderr] 17 |             match str::from_utf8(p.output.as_slice()).unwrap().trim().parse() {
[INFO] [stderr]    |                                    ^^^^^^ unknown field
[INFO] [stderr]    |
[INFO] [stderr]    = note: available fields are: `status`, `stdout`, `stderr`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             match str::from_utf8(p.output.as_slice()).unwrap().trim().parse() {
[INFO] [stderr]    |                   ----------------------------------------------------------- this expression has type `std::result::Result<_, _>`
[INFO] [stderr] 18 |                 Some(i) => i,
[INFO] [stderr]    |                 ^^^^^^^ expected enum `std::result::Result`, found enum `std::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected enum `std::result::Result<_, _>`
[INFO] [stderr]               found enum `std::option::Option<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:19:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |             match str::from_utf8(p.output.as_slice()).unwrap().trim().parse() {
[INFO] [stderr]    |                   ----------------------------------------------------------- this expression has type `std::result::Result<_, _>`
[INFO] [stderr] 18 |                 Some(i) => i,
[INFO] [stderr] 19 |                 None    => panic!("unable to cast nproc output!"),
[INFO] [stderr]    |                 ^^^^ expected enum `std::result::Result`, found enum `std::option::Option`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected enum `std::result::Result<_, _>`
[INFO] [stderr]               found enum `std::option::Option<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0609]: no field `output` on type `std::process::Output`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/lib.rs:41:54
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let mut res =  String::from_utf8_lossy(o.output.as_slice());
[INFO] [stderr]    |                                                      ^^^^^^ unknown field
[INFO] [stderr]    |
[INFO] [stderr]    = note: available fields are: `status`, `stdout`, `stderr`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `as_slice` found for reference `&std::string::String` in the current scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/utils-0.0.3/src/empty.rs:32:14
[INFO] [stderr]    |
[INFO] [stderr] 32 |         self.as_slice().is_empty()
[INFO] [stderr]    |              ^^^^^^^^ method not found in `&std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 16 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0599, E0609.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `utils`.
[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 `"docker" "inspect" "a573a0b7f99df4b56face03ae4cb92e0dea4ea099ea3bcafc7b1c2c1b7585e37"`
[INFO] running `"docker" "rm" "-f" "a573a0b7f99df4b56face03ae4cb92e0dea4ea099ea3bcafc7b1c2c1b7585e37"`
[INFO] [stdout] a573a0b7f99df4b56face03ae4cb92e0dea4ea099ea3bcafc7b1c2c1b7585e37