[INFO] fetching crate ringstack 0.3.0...
[INFO] testing ringstack-0.3.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ringstack 0.3.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ringstack 0.3.0
[INFO] finished tweaking crates.io crate ringstack 0.3.0
[INFO] tweaked toml for crates.io crate ringstack 0.3.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ringstack 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6867c187bac33030f490f55df29ac76f29dca5ec5bb61df3a2bab76b0027d82e
[INFO] running `Command { std: "docker" "start" "-a" "6867c187bac33030f490f55df29ac76f29dca5ec5bb61df3a2bab76b0027d82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6867c187bac33030f490f55df29ac76f29dca5ec5bb61df3a2bab76b0027d82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6867c187bac33030f490f55df29ac76f29dca5ec5bb61df3a2bab76b0027d82e", kill_on_drop: false }`
[INFO] [stdout] 6867c187bac33030f490f55df29ac76f29dca5ec5bb61df3a2bab76b0027d82e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 5a2ea8ddfa8e4ba1fae833409d3435c6530d66aac5b1a5a5c56043f8f44835dd
[INFO] running `Command { std: "docker" "start" "-a" "5a2ea8ddfa8e4ba1fae833409d3435c6530d66aac5b1a5a5c56043f8f44835dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "5a2ea8ddfa8e4ba1fae833409d3435c6530d66aac5b1a5a5c56043f8f44835dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2ea8ddfa8e4ba1fae833409d3435c6530d66aac5b1a5a5c56043f8f44835dd", kill_on_drop: false }`
[INFO] [stdout] 5a2ea8ddfa8e4ba1fae833409d3435c6530d66aac5b1a5a5c56043f8f44835dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 99fc3852031f9ba1909b2995208fc723f54d6d23f1c2a7b8da0b1cfd85dabbf1
[INFO] running `Command { std: "docker" "start" "-a" "99fc3852031f9ba1909b2995208fc723f54d6d23f1c2a7b8da0b1cfd85dabbf1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ringstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "99fc3852031f9ba1909b2995208fc723f54d6d23f1c2a7b8da0b1cfd85dabbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99fc3852031f9ba1909b2995208fc723f54d6d23f1c2a7b8da0b1cfd85dabbf1", kill_on_drop: false }`
[INFO] [stdout] 99fc3852031f9ba1909b2995208fc723f54d6d23f1c2a7b8da0b1cfd85dabbf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fde655513f698e862de6b375d8d00d3dbacafd49048ff7cc39fd3563c35cab84
[INFO] running `Command { std: "docker" "start" "-a" "fde655513f698e862de6b375d8d00d3dbacafd49048ff7cc39fd3563c35cab84", 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/ringstack-eeb387c1d6dfedf9)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test t::test_clone ... ok
[INFO] [stdout] test t::test_iter_mut ... ok
[INFO] [stdout] test t::test_iter ... ok
[INFO] [stdout] test t::test_multiple_times_of_push_and_pop ... ok
[INFO] [stdout] test t::test_internal_representaions_and_get_index ... ok
[INFO] [stdout] test t::test_index_access - should panic ... ok
[INFO] [stdout] test t::test_index_access_check - should panic ... ok
[INFO] [stdout] test t::test_index_mut_access - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ringstack
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fde655513f698e862de6b375d8d00d3dbacafd49048ff7cc39fd3563c35cab84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fde655513f698e862de6b375d8d00d3dbacafd49048ff7cc39fd3563c35cab84", kill_on_drop: false }`
[INFO] [stdout] fde655513f698e862de6b375d8d00d3dbacafd49048ff7cc39fd3563c35cab84