[INFO] cloning repository https://github.com/kurtbuilds/refself
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kurtbuilds/refself" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Frefself", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Frefself'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44016419de1daca85a5db1e244e000e7595fda77
[INFO] checking kurtbuilds/refself against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Frefself" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kurtbuilds/refself
[INFO] finished tweaking git repo https://github.com/kurtbuilds/refself
[INFO] tweaked toml for git repo https://github.com/kurtbuilds/refself written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kurtbuilds/refself on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kurtbuilds/refself already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db25c43f5fabb8d3d87d3e048fd7f0c0ad06e35ae5997eb53ac201508f073be5
[INFO] running `Command { std: "docker" "start" "-a" "db25c43f5fabb8d3d87d3e048fd7f0c0ad06e35ae5997eb53ac201508f073be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db25c43f5fabb8d3d87d3e048fd7f0c0ad06e35ae5997eb53ac201508f073be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db25c43f5fabb8d3d87d3e048fd7f0c0ad06e35ae5997eb53ac201508f073be5", kill_on_drop: false }`
[INFO] [stdout] db25c43f5fabb8d3d87d3e048fd7f0c0ad06e35ae5997eb53ac201508f073be5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f15021e8a99654245d27a31325e08bf84e24565ce3f7c030d7d99d07d7b89c72
[INFO] running `Command { std: "docker" "start" "-a" "f15021e8a99654245d27a31325e08bf84e24565ce3f7c030d7d99d07d7b89c72", kill_on_drop: false }`
[INFO] [stderr]     Checking refself v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | //! As long as the struct never gives out static references,
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: inner doc comments like this (starting with `//!` or `/*!`) can only appear before items
[INFO] [stdout] help: you might have meant to write a regular comment
[INFO] [stdout]   |
[INFO] [stdout] 7 - //! As long as the struct never gives out static references,
[INFO] [stdout] 7 + // As long as the struct never gives out static references,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | //! and references always lives as long as `self`, then the transmute, and this struct,
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: inner doc comments like this (starting with `//!` or `/*!`) can only appear before items
[INFO] [stdout] help: you might have meant to write a regular comment
[INFO] [stdout]   |
[INFO] [stdout] 8 - //! and references always lives as long as `self`, then the transmute, and this struct,
[INFO] [stdout] 8 + // and references always lives as long as `self`, then the transmute, and this struct,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | //! As long as the struct never gives out static references,
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: inner doc comments like this (starting with `//!` or `/*!`) can only appear before items
[INFO] [stdout] help: you might have meant to write a regular comment
[INFO] [stdout]   |
[INFO] [stdout] 7 - //! As long as the struct never gives out static references,
[INFO] [stdout] 7 + // As long as the struct never gives out static references,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | //! and references always lives as long as `self`, then the transmute, and this struct,
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: inner doc comments like this (starting with `//!` or `/*!`) can only appear before items
[INFO] [stdout] help: you might have meant to write a regular comment
[INFO] [stdout]   |
[INFO] [stdout] 8 - //! and references always lives as long as `self`, then the transmute, and this struct,
[INFO] [stdout] 8 + // and references always lives as long as `self`, then the transmute, and this struct,
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]   --> src/lib.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 |   //! is perfectly safe.
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | / impl Source {
[INFO] [stdout] 11 | |     pub fn new(content: String) -> Self {
[INFO] [stdout] 12 | |         let tokens = content.split_whitespace()
[INFO] [stdout] 13 | |             .map(|t| unsafe { std::mem::transmute(t) })
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- the inner doc comment doesn't annotate this implementation
[INFO] [stdout]    |
[INFO] [stdout] help: to annotate the implementation, change the doc comment from inner to outer style
[INFO] [stdout]    |
[INFO] [stdout]  9 - //! is perfectly safe.
[INFO] [stdout]  9 + /// is perfectly safe.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0753]: expected outer doc comment
[INFO] [stdout]   --> src/lib.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout]  9 |   //! is perfectly safe.
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | / impl Source {
[INFO] [stdout] 11 | |     pub fn new(content: String) -> Self {
[INFO] [stdout] 12 | |         let tokens = content.split_whitespace()
[INFO] [stdout] 13 | |             .map(|t| unsafe { std::mem::transmute(t) })
[INFO] [stdout] ...  |
[INFO] [stdout] 21 | | }
[INFO] [stdout]    | |_- the inner doc comment doesn't annotate this implementation
[INFO] [stdout]    |
[INFO] [stdout] help: to annotate the implementation, change the doc comment from inner to outer style
[INFO] [stdout]    |
[INFO] [stdout]  9 - //! is perfectly safe.
[INFO] [stdout]  9 + /// is perfectly safe.
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0753`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `refself` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0505]: cannot move out of `s` because it is borrowed
[INFO] [stdout]   --> src/lib.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let s = Source::new("hello world".to_string());
[INFO] [stdout]    |             - binding `s` declared here
[INFO] [stdout] 30 |         let t = s.tokens_iter().collect::<Vec<_>>();
[INFO] [stdout]    |                 - borrow of `s` occurs here
[INFO] [stdout] 31 |         drop(s);
[INFO] [stdout]    |              ^ move out of `s` occurs here
[INFO] [stdout] 32 |         println!("{:?}", t);
[INFO] [stdout]    |                          - borrow later used here
[INFO] [stdout]    |
[INFO] [stdout] note: if `Source` implemented `Clone`, you could clone the value
[INFO] [stdout]   --> src/lib.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub struct Source {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^ consider implementing `Clone` for this type
[INFO] [stdout] ...
[INFO] [stdout] 30 |         let t = s.tokens_iter().collect::<Vec<_>>();
[INFO] [stdout]    |                 - you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0505, E0753.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0505`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `refself` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "f15021e8a99654245d27a31325e08bf84e24565ce3f7c030d7d99d07d7b89c72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f15021e8a99654245d27a31325e08bf84e24565ce3f7c030d7d99d07d7b89c72", kill_on_drop: false }`
[INFO] [stdout] f15021e8a99654245d27a31325e08bf84e24565ce3f7c030d7d99d07d7b89c72