[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 beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Flinked_list_rs" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conradludgate/linked_list_rs on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-21/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" "+beta-2022-02-22" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3764389db26d4a4ed7d81f6432340ac452f3bb38e3f2efce5a20edc8de353b1
[INFO] running `Command { std: "docker" "start" "-a" "b3764389db26d4a4ed7d81f6432340ac452f3bb38e3f2efce5a20edc8de353b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3764389db26d4a4ed7d81f6432340ac452f3bb38e3f2efce5a20edc8de353b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3764389db26d4a4ed7d81f6432340ac452f3bb38e3f2efce5a20edc8de353b1", kill_on_drop: false }`
[INFO] [stdout] b3764389db26d4a4ed7d81f6432340ac452f3bb38e3f2efce5a20edc8de353b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecb0e430b06410c5b07944983cea18a359171c1c66635c04fcfa9e2b0dbd1a5a
[INFO] running `Command { std: "docker" "start" "-a" "ecb0e430b06410c5b07944983cea18a359171c1c66635c04fcfa9e2b0dbd1a5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "ecb0e430b06410c5b07944983cea18a359171c1c66635c04fcfa9e2b0dbd1a5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb0e430b06410c5b07944983cea18a359171c1c66635c04fcfa9e2b0dbd1a5a", kill_on_drop: false }`
[INFO] [stdout] ecb0e430b06410c5b07944983cea18a359171c1c66635c04fcfa9e2b0dbd1a5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b04ee5a0fe77a0534d169096059916fabfbbb0806674efc4d37a7ba517163e3d
[INFO] running `Command { std: "docker" "start" "-a" "b04ee5a0fe77a0534d169096059916fabfbbb0806674efc4d37a7ba517163e3d", 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 0.68s
[INFO] running `Command { std: "docker" "inspect" "b04ee5a0fe77a0534d169096059916fabfbbb0806674efc4d37a7ba517163e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b04ee5a0fe77a0534d169096059916fabfbbb0806674efc4d37a7ba517163e3d", kill_on_drop: false }`
[INFO] [stdout] b04ee5a0fe77a0534d169096059916fabfbbb0806674efc4d37a7ba517163e3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b9f7d59b75a163f14dcbc8329f41bec5e1565d3d27b99de0372271e5954046aa
[INFO] running `Command { std: "docker" "start" "-a" "b9f7d59b75a163f14dcbc8329f41bec5e1565d3d27b99de0372271e5954046aa", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked-0adf87ed8de3ac04)
[INFO] [stdout] 
[INFO] [stderr] free(): double free detected in tcache 2
[INFO] [stdout] running 5 tests
[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-0adf87ed8de3ac04` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "b9f7d59b75a163f14dcbc8329f41bec5e1565d3d27b99de0372271e5954046aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f7d59b75a163f14dcbc8329f41bec5e1565d3d27b99de0372271e5954046aa", kill_on_drop: false }`
[INFO] [stdout] b9f7d59b75a163f14dcbc8329f41bec5e1565d3d27b99de0372271e5954046aa