[INFO] cloning repository https://github.com/KXCVZNMX/Data-Structure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KXCVZNMX/Data-Structure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKXCVZNMX%2FData-Structure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKXCVZNMX%2FData-Structure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4b67e93d9ac04acb8cdca16cfe7d12fb5c759451
[INFO] checking KXCVZNMX/Data-Structure against try#c4ca24658d934444a28db36abebef17a8651701a for pr-144156
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKXCVZNMX%2FData-Structure" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KXCVZNMX/Data-Structure
[INFO] finished tweaking git repo https://github.com/KXCVZNMX/Data-Structure
[INFO] tweaked toml for git repo https://github.com/KXCVZNMX/Data-Structure written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KXCVZNMX/Data-Structure on toolchain c4ca24658d934444a28db36abebef17a8651701a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KXCVZNMX/Data-Structure 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" "+c4ca24658d934444a28db36abebef17a8651701a" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0074c171c8316255707cbd2a3e9c5464383a1258d009e029177de86852035ba
[INFO] running `Command { std: "docker" "start" "-a" "b0074c171c8316255707cbd2a3e9c5464383a1258d009e029177de86852035ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0074c171c8316255707cbd2a3e9c5464383a1258d009e029177de86852035ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0074c171c8316255707cbd2a3e9c5464383a1258d009e029177de86852035ba", kill_on_drop: false }`
[INFO] [stdout] b0074c171c8316255707cbd2a3e9c5464383a1258d009e029177de86852035ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+c4ca24658d934444a28db36abebef17a8651701a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8426060481084d84f8ef6e01679d340325eaabfcb814b6de66e9be1f9bde3e0
[INFO] running `Command { std: "docker" "start" "-a" "c8426060481084d84f8ef6e01679d340325eaabfcb814b6de66e9be1f9bde3e0", kill_on_drop: false }`
[INFO] [stderr]     Checking data_structure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]    --> src/lib.rs:807:21
[INFO] [stdout]     |
[INFO] [stdout] 807 |                     ptr::write(self.ptr.as_ptr().add(self.len), val);
[INFO] [stdout]     |                     ^^^ use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `ptr`, use `cargo add ptr` to add it to your `Cargo.toml`
[INFO] [stdout] help: a builtin type with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 807 -                     ptr::write(self.ptr.as_ptr().add(self.len), val);
[INFO] [stdout] 807 +                     str::write(self.ptr.as_ptr().add(self.len), val);
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]     |
[INFO] [stdout] 756 +         use std::ptr;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]    --> src/lib.rs:819:30
[INFO] [stdout]     |
[INFO] [stdout] 819 |                         Some(ptr::read(self.ptr.as_ptr().add(self.len)))
[INFO] [stdout]     |                              ^^^ use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `ptr`, use `cargo add ptr` to add it to your `Cargo.toml`
[INFO] [stdout] help: a builtin type with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 819 -                         Some(ptr::read(self.ptr.as_ptr().add(self.len)))
[INFO] [stdout] 819 +                         Some(str::read(self.ptr.as_ptr().add(self.len)))
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]     |
[INFO] [stdout] 756 +         use std::ptr;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]    --> src/lib.rs:807:21
[INFO] [stdout]     |
[INFO] [stdout] 807 |                     ptr::write(self.ptr.as_ptr().add(self.len), val);
[INFO] [stdout]     |                     ^^^ use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `ptr`, use `cargo add ptr` to add it to your `Cargo.toml`
[INFO] [stdout] help: a builtin type with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 807 -                     ptr::write(self.ptr.as_ptr().add(self.len), val);
[INFO] [stdout] 807 +                     str::write(self.ptr.as_ptr().add(self.len), val);
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]     |
[INFO] [stdout] 756 +         use std::ptr;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]    --> src/lib.rs:819:30
[INFO] [stdout]     |
[INFO] [stdout] 819 |                         Some(ptr::read(self.ptr.as_ptr().add(self.len)))
[INFO] [stdout]     |                              ^^^ use of unresolved module or unlinked crate `ptr`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `ptr`, use `cargo add ptr` to add it to your `Cargo.toml`
[INFO] [stdout] help: a builtin type with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 819 -                         Some(ptr::read(self.ptr.as_ptr().add(self.len)))
[INFO] [stdout] 819 +                         Some(str::read(self.ptr.as_ptr().add(self.len)))
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]     |
[INFO] [stdout] 756 +         use std::ptr;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `data_structure` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `data_structure` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c8426060481084d84f8ef6e01679d340325eaabfcb814b6de66e9be1f9bde3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8426060481084d84f8ef6e01679d340325eaabfcb814b6de66e9be1f9bde3e0", kill_on_drop: false }`
[INFO] [stdout] c8426060481084d84f8ef6e01679d340325eaabfcb814b6de66e9be1f9bde3e0