[INFO] cloning repository https://github.com/nathanfaucett/rs-vector
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nathanfaucett/rs-vector" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-vector", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-vector'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5fb18b5547a6d58f314a1e86c6ab1ae355e2d73
[INFO] checking nathanfaucett/rs-vector against master#c1feb3eceef7d5f0126c309a87062cf413fe0a25 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-vector" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-vector on toolchain c1feb3eceef7d5f0126c309a87062cf413fe0a25
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nathanfaucett/rs-vector
[INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-vector
[INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-vector written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanfaucett/rs-vector 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" "+c1feb3eceef7d5f0126c309a87062cf413fe0a25" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking nathanfaucett/rs-vector against try#0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5 for pr-121053
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-vector" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-vector on toolchain 0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nathanfaucett/rs-vector
[INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-vector
[INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-vector written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanfaucett/rs-vector 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" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/nathanfaucett/rs-collection_traits`
[INFO] [stderr]     Updating git repository `https://github.com/nathanfaucett/rs-zero`
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e97d3d4f0f696c7e527dacbe2eb30f4345f0d57aca3e725132027c36e35e1cbf
[INFO] running `Command { std: "docker" "start" "-a" "e97d3d4f0f696c7e527dacbe2eb30f4345f0d57aca3e725132027c36e35e1cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e97d3d4f0f696c7e527dacbe2eb30f4345f0d57aca3e725132027c36e35e1cbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97d3d4f0f696c7e527dacbe2eb30f4345f0d57aca3e725132027c36e35e1cbf", kill_on_drop: false }`
[INFO] [stdout] e97d3d4f0f696c7e527dacbe2eb30f4345f0d57aca3e725132027c36e35e1cbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+0d3c0c4551bd9d6b6a4bd51e251b596e0195adf5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 140d67b957bffeb3a381f93845f86e491be1f1e34b0719990b7c4d768ef3ef11
[INFO] running `Command { std: "docker" "start" "-a" "140d67b957bffeb3a381f93845f86e491be1f1e34b0719990b7c4d768ef3ef11", kill_on_drop: false }`
[INFO] [stderr]     Checking collection_traits v0.1.0 (https://github.com/nathanfaucett/rs-collection_traits#a75d1c20)
[INFO] [stderr]     Checking zero v0.1.0 (https://github.com/nathanfaucett/rs-zero#414beceb)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/a75d1c2/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `alloc::linked_list`, `alloc::linked_list`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/a75d1c2/src/linked_list.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::linked_list::{self, LinkedList};
[INFO] [stdout]   |            ^^^^^^^^^^^   ^^^^ no `linked_list` in the root
[INFO] [stdout]   |            |
[INFO] [stdout]   |            could not find `linked_list` in `alloc`
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider importing one of these items instead:
[INFO] [stdout]           alloc::collections::linked_list
[INFO] [stdout]           linked_list
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Iter` in module `linked_list`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/a75d1c2/src/linked_list.rs:75:30
[INFO] [stdout]    |
[INFO] [stdout] 75 |     type Iter = linked_list::Iter<'a, T>;
[INFO] [stdout]    |                              ^^^^ not found in `linked_list`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::binary_heap::Iter;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::btree_map::Iter;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::btree_set::Iter;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::linked_list::Iter;
[INFO] [stdout]    |
[INFO] [stdout]      and 4 other candidates
[INFO] [stdout] help: if you import `Iter`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 75 -     type Iter = linked_list::Iter<'a, T>;
[INFO] [stdout] 75 +     type Iter = Iter<'a, T>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IterMut` in module `linked_list`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/a75d1c2/src/linked_list.rs:84:33
[INFO] [stdout]    |
[INFO] [stdout] 84 |     type IterMut = linked_list::IterMut<'a, T>;
[INFO] [stdout]    |                                 ^^^^^^^ not found in `linked_list`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::btree_map::IterMut;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::linked_list::IterMut;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::collections::vec_deque::IterMut;
[INFO] [stdout]    |
[INFO] [stdout] 1  + use alloc::slice::IterMut;
[INFO] [stdout]    |
[INFO] [stdout]      and 2 other candidates
[INFO] [stdout] help: if you import `IterMut`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 84 -     type IterMut = linked_list::IterMut<'a, T>;
[INFO] [stdout] 84 +     type IterMut = IterMut<'a, T>;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collection_traits` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "140d67b957bffeb3a381f93845f86e491be1f1e34b0719990b7c4d768ef3ef11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140d67b957bffeb3a381f93845f86e491be1f1e34b0719990b7c4d768ef3ef11", kill_on_drop: false }`
[INFO] [stdout] 140d67b957bffeb3a381f93845f86e491be1f1e34b0719990b7c4d768ef3ef11