[INFO] fetching crate ju-tcs-rust-23-2 0.1.0...
[INFO] testing ju-tcs-rust-23-2-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ju-tcs-rust-23-2 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ju-tcs-rust-23-2 0.1.0
[INFO] finished tweaking crates.io crate ju-tcs-rust-23-2 0.1.0
[INFO] tweaked toml for crates.io crate ju-tcs-rust-23-2 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ju-tcs-rust-23-2 0.1.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bb19dcecf6b07682bc926480f7d1c7112a56f8900a66b5792f66d8a85791396f
[INFO] running `Command { std: "docker" "start" "-a" "bb19dcecf6b07682bc926480f7d1c7112a56f8900a66b5792f66d8a85791396f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb19dcecf6b07682bc926480f7d1c7112a56f8900a66b5792f66d8a85791396f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb19dcecf6b07682bc926480f7d1c7112a56f8900a66b5792f66d8a85791396f", kill_on_drop: false }`
[INFO] [stdout] bb19dcecf6b07682bc926480f7d1c7112a56f8900a66b5792f66d8a85791396f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2714b44017e142de3b596f44d86ec4875287eab5825d8762bbbc86541ec2215c
[INFO] running `Command { std: "docker" "start" "-a" "2714b44017e142de3b596f44d86ec4875287eab5825d8762bbbc86541ec2215c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ju-tcs-rust-23-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "2714b44017e142de3b596f44d86ec4875287eab5825d8762bbbc86541ec2215c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2714b44017e142de3b596f44d86ec4875287eab5825d8762bbbc86541ec2215c", kill_on_drop: false }`
[INFO] [stdout] 2714b44017e142de3b596f44d86ec4875287eab5825d8762bbbc86541ec2215c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0cdfd36d44ca709127eb388549adfc4ef61540c75d37434519874d367c26cc00
[INFO] running `Command { std: "docker" "start" "-a" "0cdfd36d44ca709127eb388549adfc4ef61540c75d37434519874d367c26cc00", kill_on_drop: false }`
[INFO] [stderr]    Compiling ju-tcs-rust-23-2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "0cdfd36d44ca709127eb388549adfc4ef61540c75d37434519874d367c26cc00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cdfd36d44ca709127eb388549adfc4ef61540c75d37434519874d367c26cc00", kill_on_drop: false }`
[INFO] [stdout] 0cdfd36d44ca709127eb388549adfc4ef61540c75d37434519874d367c26cc00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a0dc529aed9eecef2014bbf1940e0a9f887b35e254430505be328d24afdd7e6d
[INFO] running `Command { std: "docker" "start" "-a" "a0dc529aed9eecef2014bbf1940e0a9f887b35e254430505be328d24afdd7e6d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ju_tcs_rust_23_2-9167c34a678ce6fc)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::tail_works_with_big_n ... ok
[INFO] [stdout] test tests::head_works_with_small_n ... ok
[INFO] [stdout] test tests::tail_works_with_small_n ... ok
[INFO] [stdout] test tests::head_works_with_big_n ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ju_tcs_rust_23_2
[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" "a0dc529aed9eecef2014bbf1940e0a9f887b35e254430505be328d24afdd7e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0dc529aed9eecef2014bbf1940e0a9f887b35e254430505be328d24afdd7e6d", kill_on_drop: false }`
[INFO] [stdout] a0dc529aed9eecef2014bbf1940e0a9f887b35e254430505be328d24afdd7e6d