[INFO] fetching crate rust-arc-gc 0.2.1...
[INFO] testing rust-arc-gc-0.2.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate rust-arc-gc 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rust-arc-gc 0.2.1
[INFO] finished tweaking crates.io crate rust-arc-gc 0.2.1
[INFO] tweaked toml for crates.io crate rust-arc-gc 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-arc-gc 0.2.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-arc-gc 0.2.1 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6daa0873a7b01ccc233acd1191467fdafe97070134121e40bf0a18460c28d4db
[INFO] running `Command { std: "docker" "start" "-a" "6daa0873a7b01ccc233acd1191467fdafe97070134121e40bf0a18460c28d4db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6daa0873a7b01ccc233acd1191467fdafe97070134121e40bf0a18460c28d4db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6daa0873a7b01ccc233acd1191467fdafe97070134121e40bf0a18460c28d4db", kill_on_drop: false }`
[INFO] [stdout] 6daa0873a7b01ccc233acd1191467fdafe97070134121e40bf0a18460c28d4db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afc4e4ce25fe5b920dd2947de22cc48f3cd26c30fb2a2fd133fdf8fb4f081123
[INFO] running `Command { std: "docker" "start" "-a" "afc4e4ce25fe5b920dd2947de22cc48f3cd26c30fb2a2fd133fdf8fb4f081123", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling rust-arc-gc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "afc4e4ce25fe5b920dd2947de22cc48f3cd26c30fb2a2fd133fdf8fb4f081123", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc4e4ce25fe5b920dd2947de22cc48f3cd26c30fb2a2fd133fdf8fb4f081123", kill_on_drop: false }`
[INFO] [stdout] afc4e4ce25fe5b920dd2947de22cc48f3cd26c30fb2a2fd133fdf8fb4f081123
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e003fcfe05f65dae457c7dc1f416f1b1652be1f27e391c0796903a0ce24cbe1
[INFO] running `Command { std: "docker" "start" "-a" "9e003fcfe05f65dae457c7dc1f416f1b1652be1f27e391c0796903a0ce24cbe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-arc-gc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "9e003fcfe05f65dae457c7dc1f416f1b1652be1f27e391c0796903a0ce24cbe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e003fcfe05f65dae457c7dc1f416f1b1652be1f27e391c0796903a0ce24cbe1", kill_on_drop: false }`
[INFO] [stdout] 9e003fcfe05f65dae457c7dc1f416f1b1652be1f27e391c0796903a0ce24cbe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 03e527704e80dd8dfda8b1c0df76514d7ec6232de86d7050af5aac7bff502ad9
[INFO] running `Command { std: "docker" "start" "-a" "03e527704e80dd8dfda8b1c0df76514d7ec6232de86d7050af5aac7bff502ad9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/arc_gc-02a992ff455e1efb)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test gc::tests::test_combined_thresholds_gc ... ok
[INFO] [stdout] test gc::tests::test_gc ... ok
[INFO] [stdout] test gc::tests::test_memory_threshold_gc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arc_gc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03e527704e80dd8dfda8b1c0df76514d7ec6232de86d7050af5aac7bff502ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e527704e80dd8dfda8b1c0df76514d7ec6232de86d7050af5aac7bff502ad9", kill_on_drop: false }`
[INFO] [stdout] 03e527704e80dd8dfda8b1c0df76514d7ec6232de86d7050af5aac7bff502ad9