[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 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conradludgate/linked_list_rs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-25/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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded testdrop v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d25cc862ea9f391b6a34c54193325da770e1705f34e7bb511e7a18c68a099788
[INFO] running `Command { std: "docker" "start" "-a" "d25cc862ea9f391b6a34c54193325da770e1705f34e7bb511e7a18c68a099788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d25cc862ea9f391b6a34c54193325da770e1705f34e7bb511e7a18c68a099788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d25cc862ea9f391b6a34c54193325da770e1705f34e7bb511e7a18c68a099788", kill_on_drop: false }`
[INFO] [stdout] d25cc862ea9f391b6a34c54193325da770e1705f34e7bb511e7a18c68a099788
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca14ad965f296b6329b3112bb7c7910d8331e8ced5f42e851e6a5a303f0ecc71
[INFO] running `Command { std: "docker" "start" "-a" "ca14ad965f296b6329b3112bb7c7910d8331e8ced5f42e851e6a5a303f0ecc71", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "ca14ad965f296b6329b3112bb7c7910d8331e8ced5f42e851e6a5a303f0ecc71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca14ad965f296b6329b3112bb7c7910d8331e8ced5f42e851e6a5a303f0ecc71", kill_on_drop: false }`
[INFO] [stdout] ca14ad965f296b6329b3112bb7c7910d8331e8ced5f42e851e6a5a303f0ecc71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a111fdb143351a369ad51cffdbff08c73e9401fd7786e512c98510e0e3eb561
[INFO] running `Command { std: "docker" "start" "-a" "2a111fdb143351a369ad51cffdbff08c73e9401fd7786e512c98510e0e3eb561", 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 0.75s
[INFO] running `Command { std: "docker" "inspect" "2a111fdb143351a369ad51cffdbff08c73e9401fd7786e512c98510e0e3eb561", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a111fdb143351a369ad51cffdbff08c73e9401fd7786e512c98510e0e3eb561", kill_on_drop: false }`
[INFO] [stdout] 2a111fdb143351a369ad51cffdbff08c73e9401fd7786e512c98510e0e3eb561
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bc8b77d29688705303320521e60c1c0b4e70732e36e7c739acd386d1f2d3b9ed
[INFO] running `Command { std: "docker" "start" "-a" "bc8b77d29688705303320521e60c1c0b4e70732e36e7c739acd386d1f2d3b9ed", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked-60957b08a1f66df0)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stderr] free(): double free detected in tcache 2
[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-60957b08a1f66df0` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "bc8b77d29688705303320521e60c1c0b4e70732e36e7c739acd386d1f2d3b9ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc8b77d29688705303320521e60c1c0b4e70732e36e7c739acd386d1f2d3b9ed", kill_on_drop: false }`
[INFO] [stdout] bc8b77d29688705303320521e60c1c0b4e70732e36e7c739acd386d1f2d3b9ed