[INFO] cloning repository https://github.com/AhmedAlyElGhannam/too-many-rusty-lists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AhmedAlyElGhannam/too-many-rusty-lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmedAlyElGhannam%2Ftoo-many-rusty-lists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmedAlyElGhannam%2Ftoo-many-rusty-lists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf41ca52d2c0864aaabbaa292c0ecfa6697123aa
[INFO] checking AhmedAlyElGhannam/too-many-rusty-lists against master#3f6250a7bb79e600d9036bbc7c8f65af43933643 for pr-147859
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAhmedAlyElGhannam%2Ftoo-many-rusty-lists" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AhmedAlyElGhannam/too-many-rusty-lists
[INFO] finished tweaking git repo https://github.com/AhmedAlyElGhannam/too-many-rusty-lists
[INFO] tweaked toml for git repo https://github.com/AhmedAlyElGhannam/too-many-rusty-lists written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AhmedAlyElGhannam/too-many-rusty-lists on toolchain 3f6250a7bb79e600d9036bbc7c8f65af43933643
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AhmedAlyElGhannam/too-many-rusty-lists 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" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5872bebd11df972da87002b8ca5798ffcb552d5f6e3be06b01a5f9d4713e2a4
[INFO] running `Command { std: "docker" "start" "-a" "c5872bebd11df972da87002b8ca5798ffcb552d5f6e3be06b01a5f9d4713e2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5872bebd11df972da87002b8ca5798ffcb552d5f6e3be06b01a5f9d4713e2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5872bebd11df972da87002b8ca5798ffcb552d5f6e3be06b01a5f9d4713e2a4", kill_on_drop: false }`
[INFO] [stdout] c5872bebd11df972da87002b8ca5798ffcb552d5f6e3be06b01a5f9d4713e2a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+3f6250a7bb79e600d9036bbc7c8f65af43933643" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46115853a9121be27584095ffbdc490df5e0850152e82551b34fff58f2c534f6
[INFO] running `Command { std: "docker" "start" "-a" "46115853a9121be27584095ffbdc490df5e0850152e82551b34fff58f2c534f6", kill_on_drop: false }`
[INFO] [stderr]     Checking too-many-rusty-lists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find type `Iter` in this scope
[INFO] [stdout]   --> src/fourth.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]    |                           ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]    |
[INFO] [stdout]  4 + use crate::second::Iter;
[INFO] [stdout]    |
[INFO] [stdout]  4 + use std::collections::binary_heap::Iter;
[INFO] [stdout]    |
[INFO] [stdout]  4 + use std::collections::btree_map::Iter;
[INFO] [stdout]    |
[INFO] [stdout]  4 + use std::collections::btree_set::Iter;
[INFO] [stdout]    |
[INFO] [stdout]    = and 13 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/third.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find type `Iter` in this scope
[INFO] [stdout]   --> src/fourth.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn iter(&self) -> Iter<T> {
[INFO] [stdout]    |                           ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these structs
[INFO] [stdout]    |
[INFO] [stdout]  4 + use crate::second::Iter;
[INFO] [stdout]    |
[INFO] [stdout]  4 + use std::collections::binary_heap::Iter;
[INFO] [stdout]    |
[INFO] [stdout]  4 + use std::collections::btree_map::Iter;
[INFO] [stdout]    |
[INFO] [stdout]  4 + use std::collections::btree_set::Iter;
[INFO] [stdout]    |
[INFO] [stdout]    = and 13 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/third.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `Iter` in this scope
[INFO] [stdout]   --> src/fourth.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Iter(self.head.as_ref().map(|head| head.borrow()))
[INFO] [stdout]    |         ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `Iter` in this scope
[INFO] [stdout]   --> src/fourth.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         Iter(self.head.as_ref().map(|head| head.borrow()))
[INFO] [stdout]    |         ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `too-many-rusty-lists` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `too-many-rusty-lists` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "46115853a9121be27584095ffbdc490df5e0850152e82551b34fff58f2c534f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46115853a9121be27584095ffbdc490df5e0850152e82551b34fff58f2c534f6", kill_on_drop: false }`
[INFO] [stdout] 46115853a9121be27584095ffbdc490df5e0850152e82551b34fff58f2c534f6
