[INFO] cloning repository https://github.com/conradludgate/linked_list_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conradludgate/linked_list_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90387bf1f3cacf8e685c89c9532860a19eaf05d7
[INFO] testing conradludgate/linked_list_rs against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conradludgate/linked_list_rs on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/conradludgate/linked_list_rs
[INFO] finished tweaking git repo https://github.com/conradludgate/linked_list_rs
[INFO] tweaked toml for git repo https://github.com/conradludgate/linked_list_rs written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/conradludgate/linked_list_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b44b8dabc9770f42ea7ca8f915641319ae33cd80eeff774d7a1e10f6f9aa14e8
[INFO] running `Command { std: "docker" "start" "-a" "b44b8dabc9770f42ea7ca8f915641319ae33cd80eeff774d7a1e10f6f9aa14e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b44b8dabc9770f42ea7ca8f915641319ae33cd80eeff774d7a1e10f6f9aa14e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b44b8dabc9770f42ea7ca8f915641319ae33cd80eeff774d7a1e10f6f9aa14e8", kill_on_drop: false }`
[INFO] [stdout] b44b8dabc9770f42ea7ca8f915641319ae33cd80eeff774d7a1e10f6f9aa14e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77aad2fc78a6ffaf4963bc6f17b300d7bf67aea958ee966263a06545656c03db
[INFO] running `Command { std: "docker" "start" "-a" "77aad2fc78a6ffaf4963bc6f17b300d7bf67aea958ee966263a06545656c03db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling linked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.61s
[INFO] running `Command { std: "docker" "inspect" "77aad2fc78a6ffaf4963bc6f17b300d7bf67aea958ee966263a06545656c03db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77aad2fc78a6ffaf4963bc6f17b300d7bf67aea958ee966263a06545656c03db", kill_on_drop: false }`
[INFO] [stdout] 77aad2fc78a6ffaf4963bc6f17b300d7bf67aea958ee966263a06545656c03db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b686c1009a9d78cb0b280d41d88ab2a754d774811e90bc88141657fe425fba67
[INFO] running `Command { std: "docker" "start" "-a" "b686c1009a9d78cb0b280d41d88ab2a754d774811e90bc88141657fe425fba67", kill_on_drop: false }`
[INFO] [stderr]    Compiling testdrop v0.1.2
[INFO] [stderr]    Compiling linked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "b686c1009a9d78cb0b280d41d88ab2a754d774811e90bc88141657fe425fba67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b686c1009a9d78cb0b280d41d88ab2a754d774811e90bc88141657fe425fba67", kill_on_drop: false }`
[INFO] [stdout] b686c1009a9d78cb0b280d41d88ab2a754d774811e90bc88141657fe425fba67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b0801f1665f56d66c955cf24ed7149f9109c676adb5f2bb32042522863fd56f
[INFO] running `Command { std: "docker" "start" "-a" "9b0801f1665f56d66c955cf24ed7149f9109c676adb5f2bb32042522863fd56f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked-405654410fbc282e)
[INFO] [stdout] 
[INFO] [stderr] free(): double free detected in tcache 2
[INFO] [stdout] running 5 tests
[INFO] [stdout] test iter::tests::iter ... ok
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/linked-405654410fbc282e` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "9b0801f1665f56d66c955cf24ed7149f9109c676adb5f2bb32042522863fd56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b0801f1665f56d66c955cf24ed7149f9109c676adb5f2bb32042522863fd56f", kill_on_drop: false }`
[INFO] [stdout] 9b0801f1665f56d66c955cf24ed7149f9109c676adb5f2bb32042522863fd56f