[INFO] cloning repository https://github.com/Undin/features-2018-3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Undin/features-2018-3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUndin%2Ffeatures-2018-3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUndin%2Ffeatures-2018-3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 798fbdf8cf367be2670386ff2cf105f1a589876a
[INFO] checking Undin/features-2018-3 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUndin%2Ffeatures-2018-3" "/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/Undin/features-2018-3 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Undin/features-2018-3
[INFO] finished tweaking git repo https://github.com/Undin/features-2018-3
[INFO] tweaked toml for git repo https://github.com/Undin/features-2018-3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Undin/features-2018-3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 143127b7e563c704392714788ecaa60d5d6da13a3a848ebb9c04fba46d521d02
[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" "143127b7e563c704392714788ecaa60d5d6da13a3a848ebb9c04fba46d521d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "143127b7e563c704392714788ecaa60d5d6da13a3a848ebb9c04fba46d521d02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "143127b7e563c704392714788ecaa60d5d6da13a3a848ebb9c04fba46d521d02", kill_on_drop: false }`
[INFO] [stdout] 143127b7e563c704392714788ecaa60d5d6da13a3a848ebb9c04fba46d521d02
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9d80ab32aa230c2834501147199792b3fb0064c400072b178be3689cf377ed67
[INFO] running `Command { std: "docker" "start" "-a" "9d80ab32aa230c2834501147199792b3fb0064c400072b178be3689cf377ed67", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling diesel_derives v1.3.0
[INFO] [stderr]     Checking diesel v1.3.3
[INFO] [stderr]     Checking features-2018-3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> examples/debug_cell.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let y = 1;
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `yy`
[INFO] [stdout]   --> examples/debug_cell.rs:16:13
[INFO] [stdout]    |
[INFO] [stdout] 16 |         let yy = 2;
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_yy`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> examples/debug_cell.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let r = ref_cell.borrow();
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot find type `table` in this scope
[INFO] [stdout]   --> examples/macro_expansion.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / table! {
[INFO] [stdout] 15 | |     followings (user_id, post_id) {
[INFO] [stdout] 16 | |         user_id -> Integer,
[INFO] [stdout] 17 | |         post_id -> Integer,
[INFO] [stdout] 18 | |         favorited -> Bool,
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^ names from parent modules are not accessible without an explicit import
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(proc_macro_derive_resolution_fallback)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fact`
[INFO] [stdout]  --> examples/tests.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn fact(n: u32) -> u32 {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot find type `table` in this scope
[INFO] [stdout]   --> examples/macro_expansion.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / table! {
[INFO] [stdout] 15 | |     followings (user_id, post_id) {
[INFO] [stdout] 16 | |         user_id -> Integer,
[INFO] [stdout] 17 | |         post_id -> Integer,
[INFO] [stdout] 18 | |         favorited -> Bool,
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^ names from parent modules are not accessible without an explicit import
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `diesel`
[INFO] [stdout]  --> examples/actions_and_intentions.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use diesel::Connection;
[INFO] [stdout]   |     ^^^^^^ maybe a missing crate `diesel`?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `point::Point3D`
[INFO] [stdout]  --> examples/actions_and_intentions.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use point::Point3D;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> examples/debug_vec.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let mut v = all_primes(10000);
[INFO] [stdout]   |         ----^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `point::Point2D`
[INFO] [stdout]  --> examples/actions_and_intentions.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use point::Point2D; // Cmd+Alt+O to optimize imports.
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot find type `user_id` in this scope
[INFO] [stdout]   --> examples/macro_expansion.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / table! {
[INFO] [stdout] 15 | |     followings (user_id, post_id) {
[INFO] [stdout] 16 | |         user_id -> Integer,
[INFO] [stdout] 17 | |         post_id -> Integer,
[INFO] [stdout] 18 | |         favorited -> Bool,
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^ names from parent modules are not accessible without an explicit import
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot find type `post_id` in this scope
[INFO] [stdout]   --> examples/macro_expansion.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / table! {
[INFO] [stdout] 15 | |     followings (user_id, post_id) {
[INFO] [stdout] 16 | |         user_id -> Integer,
[INFO] [stdout] 17 | |         post_id -> Integer,
[INFO] [stdout] 18 | |         favorited -> Bool,
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^ names from parent modules are not accessible without an explicit import
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot find type `favorited` in this scope
[INFO] [stdout]   --> examples/macro_expansion.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | / table! {
[INFO] [stdout] 15 | |     followings (user_id, post_id) {
[INFO] [stdout] 16 | |         user_id -> Integer,
[INFO] [stdout] 17 | |         post_id -> Integer,
[INFO] [stdout] 18 | |         favorited -> Bool,
[INFO] [stdout] 19 | |     }
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^ names from parent modules are not accessible without an explicit import
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #83583 <https://github.com/rust-lang/rust/issues/83583>
[INFO] [stdout]    = note: this warning originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `weak`
[INFO] [stdout]  --> examples/debug_rc.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let weak = Rc::downgrade(&rc2);
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_weak`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `weak2`
[INFO] [stdout]   --> examples/debug_rc.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let weak2 = Arc::downgrade(&arc2);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_weak2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for struct `Stdin` in the current scope
[INFO] [stdout]    --> examples/inspections.rs:6:13
[INFO] [stdout]     |
[INFO] [stdout] 6   |     stdin().read/*caret*/(&mut buf); // pres Alt + Enter to import `Read` trait
[INFO] [stdout]     |             ^^^^ method not found in `Stdin`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 6   |     Box::new(stdin()).read/*caret*/(&mut buf); // pres Alt + Enter to import `Read` trait
[INFO] [stdout]     |     ^^^^^^^^^       ^
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 6   |     Box::new(&mut stdin()).read/*caret*/(&mut buf); // pres Alt + Enter to import `Read` trait
[INFO] [stdout]     |     ^^^^^^^^^^^^^        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `features-2018-3`
[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] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/actions_and_intentions.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | fn main() {
[INFO] [stdout]    |           - expected `()` because of default return type
[INFO] [stdout] ...
[INFO] [stdout] 13 |         s.remove(0)
[INFO] [stdout]    |         ^^^^^^^^^^^- help: consider using a semicolon here: `;`
[INFO] [stdout]    |         |
[INFO] [stdout]    |         expected `()`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] [stdout] error[E0615]: attempted to take value of method `iter` on type `Vec<u8>`
[INFO] [stdout]   --> examples/actions_and_intentions.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |     v.iter // Ctrl+Space -> select `iter`
[INFO] [stdout]    |       ^^^^ method, not a field
[INFO] [stdout]    |
[INFO] [stdout] help: use parentheses to call the method
[INFO] [stdout]    |
[INFO] [stdout] 19 |     v.iter() // Ctrl+Space -> select `iter`
[INFO] [stdout]    |           ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0432, E0615.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d80ab32aa230c2834501147199792b3fb0064c400072b178be3689cf377ed67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d80ab32aa230c2834501147199792b3fb0064c400072b178be3689cf377ed67", kill_on_drop: false }`
[INFO] [stdout] 9d80ab32aa230c2834501147199792b3fb0064c400072b178be3689cf377ed67