[INFO] cloning repository https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCameronRobsonLeigh%2FMark-And-Sweep-GC-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCameronRobsonLeigh%2FMark-And-Sweep-GC-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9103939fd2d7e5a37d3a108f2696c12c1094cc59
[INFO] building CameronRobsonLeigh/Mark-And-Sweep-GC-Rust against try#334963c956d25708feab489a3816ae63f639355d for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCameronRobsonLeigh%2FMark-And-Sweep-GC-Rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust on toolchain 334963c956d25708feab489a3816ae63f639355d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust
[INFO] finished tweaking git repo https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust
[INFO] tweaked toml for git repo https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/CameronRobsonLeigh/Mark-And-Sweep-GC-Rust 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" "+334963c956d25708feab489a3816ae63f639355d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10258635c5bbdb7a48e72844719631593ba89b4b73e8e5e48da4d8a929545afc
[INFO] running `Command { std: "docker" "start" "-a" "10258635c5bbdb7a48e72844719631593ba89b4b73e8e5e48da4d8a929545afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10258635c5bbdb7a48e72844719631593ba89b4b73e8e5e48da4d8a929545afc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10258635c5bbdb7a48e72844719631593ba89b4b73e8e5e48da4d8a929545afc", kill_on_drop: false }`
[INFO] [stdout] 10258635c5bbdb7a48e72844719631593ba89b4b73e8e5e48da4d8a929545afc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c1d7f2eb9ad2674e586c3865708333fa4833e2ed563a62166044c719ed3284e
[INFO] running `Command { std: "docker" "start" "-a" "5c1d7f2eb9ad2674e586c3865708333fa4833e2ed563a62166044c719ed3284e", kill_on_drop: false }`
[INFO] [stderr]    Compiling GarbageCollector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/models/collector.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any; 
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `models::collector::GarbageCollector`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use models::collector::GarbageCollector;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GarbageCollector` is never constructed
[INFO] [stdout]  --> src/models/collector.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct GarbageCollector<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/models/collector.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T> GarbageCollector<T> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 13 | pub fn new() -> GarbageCollector<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 | pub fn add_object(&mut self, object: GCObject) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 | pub fn add_root(&mut self, object: T) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |  pub fn mark(&mut self) {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |  pub fn mark_object(&self, object: &mut GCObject) {
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 | pub fn sweep(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 | pub fn collect_garbage(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "5c1d7f2eb9ad2674e586c3865708333fa4833e2ed563a62166044c719ed3284e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1d7f2eb9ad2674e586c3865708333fa4833e2ed563a62166044c719ed3284e", kill_on_drop: false }`
[INFO] [stdout] 5c1d7f2eb9ad2674e586c3865708333fa4833e2ed563a62166044c719ed3284e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+334963c956d25708feab489a3816ae63f639355d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f71e3addcfda97f201520c99959b626d5e03dcc2fe716085827f040ca446fcbd
[INFO] running `Command { std: "docker" "start" "-a" "f71e3addcfda97f201520c99959b626d5e03dcc2fe716085827f040ca446fcbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling GarbageCollector v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> src/models/collector.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::any::Any; 
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `models::collector::GarbageCollector`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use models::collector::GarbageCollector;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GarbageCollector` is never constructed
[INFO] [stdout]  --> src/models/collector.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct GarbageCollector<T> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/models/collector.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl<T> GarbageCollector<T> {
[INFO] [stdout]    | --------------------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 13 | pub fn new() -> GarbageCollector<T> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 | pub fn add_object(&mut self, object: GCObject) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 | pub fn add_root(&mut self, object: T) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |  pub fn mark(&mut self) {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |  pub fn mark_object(&self, object: &mut GCObject) {
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 | pub fn sweep(&mut self) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 | pub fn collect_garbage(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "f71e3addcfda97f201520c99959b626d5e03dcc2fe716085827f040ca446fcbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f71e3addcfda97f201520c99959b626d5e03dcc2fe716085827f040ca446fcbd", kill_on_drop: false }`
[INFO] [stdout] f71e3addcfda97f201520c99959b626d5e03dcc2fe716085827f040ca446fcbd
