[INFO] cloning repository https://github.com/Lapz/loki
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lapz/loki" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Floki", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Floki'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d15792f0372ca67d61f4e9c6188a1c8ee29428be
[INFO] checking Lapz/loki against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Floki" "/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/Lapz/loki on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/.cargo/config
[INFO] started tweaking git repo https://github.com/Lapz/loki
[INFO] finished tweaking git repo https://github.com/Lapz/loki
[INFO] tweaked toml for git repo https://github.com/Lapz/loki written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Lapz/loki already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27a61fd148e595e218ffd36184965a75be17e10cbd22600258f7ac687c4913f4
[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" "27a61fd148e595e218ffd36184965a75be17e10cbd22600258f7ac687c4913f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27a61fd148e595e218ffd36184965a75be17e10cbd22600258f7ac687c4913f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a61fd148e595e218ffd36184965a75be17e10cbd22600258f7ac687c4913f4", kill_on_drop: false }`
[INFO] [stdout] 27a61fd148e595e218ffd36184965a75be17e10cbd22600258f7ac687c4913f4
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 020d250f7ca1fed94bbf184de083e91b493ba9613cff45ae846102a4e950e04a
[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" "020d250f7ca1fed94bbf184de083e91b493ba9613cff45ae846102a4e950e04a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling pest_meta v2.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking codespan v0.4.1
[INFO] [stderr]     Checking heck v0.3.1
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking codespan-reporting v0.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking unic-segment v0.7.0
[INFO] [stderr]     Checking loki-errors v0.1.0 (/opt/rustwide/workdir/loki-errors)
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking loki-syntax v0.1.0 (/opt/rustwide/workdir/loki-syntax)
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stdout] warning: unused import: `TokenKind::*`
[INFO] [stdout]   --> loki-syntax/src/ast.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use TokenKind::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ParserResult`
[INFO] [stdout]  --> loki-syntax/src/lexer.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{Parser, ParserResult};
[INFO] [stdout]   |                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Files`, `Reporter`
[INFO] [stdout]  --> loki-syntax/src/lexer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Files, Reporter,
[INFO] [stdout]   |     ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Token`
[INFO] [stdout]  --> loki-syntax/src/parser/pratt.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Span, Token,
[INFO] [stdout]   |           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Span`, `TokenKind::*`, `Token`
[INFO] [stdout]  --> loki-syntax/src/parser/visibility.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{Span, Token, TokenKind::*};
[INFO] [stdout]   |             ^^^^  ^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Files`
[INFO] [stdout]   --> loki-syntax/src/lib.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     FileId, Files, Reporter,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> loki-syntax/src/parser/types.rs:8:33
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub(crate) fn parse_type(&mut self) -> ParserResult<TypeRef> {
[INFO] [stdout]   |                                            --------------------- expected `Result<ast::TypeRef, ()>` because of return type
[INFO] [stdout] 7 |         match self.current() {
[INFO] [stdout] 8 |             IDENT | T![self] => self.parse_ident_type(),
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |                                 |
[INFO] [stdout]   |                                 expected enum `Result`, found enum `ast::TypeRef`
[INFO] [stdout]   |                                 help: try using a variant of the expected enum: `Ok(self.parse_ident_type())`
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected enum `Result<ast::TypeRef, ()>`
[INFO] [stdout]              found enum `ast::TypeRef`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `loki-syntax`
[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" "020d250f7ca1fed94bbf184de083e91b493ba9613cff45ae846102a4e950e04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "020d250f7ca1fed94bbf184de083e91b493ba9613cff45ae846102a4e950e04a", kill_on_drop: false }`
[INFO] [stdout] 020d250f7ca1fed94bbf184de083e91b493ba9613cff45ae846102a4e950e04a