[INFO] cloning repository https://github.com/Tanvi-1978/Rust-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tanvi-1978/Rust-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTanvi-1978%2FRust-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTanvi-1978%2FRust-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f81a4469fef6db093ff25dd12acac21074ac935f
[INFO] testing Tanvi-1978/Rust-exercise against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTanvi-1978%2FRust-exercise" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tanvi-1978/Rust-exercise
[INFO] finished tweaking git repo https://github.com/Tanvi-1978/Rust-exercise
[INFO] tweaked toml for git repo https://github.com/Tanvi-1978/Rust-exercise written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tanvi-1978/Rust-exercise on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tanvi-1978/Rust-exercise 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bbead7646e8d32098f05e68bb9042e57eabfeb95cc563cbbf21a0ecd7afc91e
[INFO] running `Command { std: "docker" "start" "-a" "3bbead7646e8d32098f05e68bb9042e57eabfeb95cc563cbbf21a0ecd7afc91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bbead7646e8d32098f05e68bb9042e57eabfeb95cc563cbbf21a0ecd7afc91e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bbead7646e8d32098f05e68bb9042e57eabfeb95cc563cbbf21a0ecd7afc91e", kill_on_drop: false }`
[INFO] [stdout] 3bbead7646e8d32098f05e68bb9042e57eabfeb95cc563cbbf21a0ecd7afc91e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11ed06d0081b4861000032004701b538c6f37b00885803d13aa8a367465dc195
[INFO] running `Command { std: "docker" "start" "-a" "11ed06d0081b4861000032004701b538c6f37b00885803d13aa8a367465dc195", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling prettyplease v0.2.31
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling log v0.4.26
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling libloading v0.8.6
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.64s
[INFO] running `Command { std: "docker" "inspect" "11ed06d0081b4861000032004701b538c6f37b00885803d13aa8a367465dc195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11ed06d0081b4861000032004701b538c6f37b00885803d13aa8a367465dc195", kill_on_drop: false }`
[INFO] [stdout] 11ed06d0081b4861000032004701b538c6f37b00885803d13aa8a367465dc195
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f330154f4bd3b990a67aa070407acfbd01ac457f23b95694d5733c43e4ee36
[INFO] running `Command { std: "docker" "start" "-a" "05f330154f4bd3b990a67aa070407acfbd01ac457f23b95694d5733c43e4ee36", kill_on_drop: false }`
[INFO] [stderr]    Compiling exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `assert_not_send` is never used
[INFO] [stdout]    --> src/lib.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |         fn assert_not_send<T: ?Sized>() where T: Send {}
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_not_sync` is never used
[INFO] [stdout]    --> src/lib.rs:209:12
[INFO] [stdout]     |
[INFO] [stdout] 209 |         fn assert_not_sync<T: ?Sized>() where T: Sync {}
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "05f330154f4bd3b990a67aa070407acfbd01ac457f23b95694d5733c43e4ee36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f330154f4bd3b990a67aa070407acfbd01ac457f23b95694d5733c43e4ee36", kill_on_drop: false }`
[INFO] [stdout] 05f330154f4bd3b990a67aa070407acfbd01ac457f23b95694d5733c43e4ee36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4a365410732707d0bdf28d7b9fa9f6098bce67dd04095222831b10a22e7e1ac
[INFO] running `Command { std: "docker" "start" "-a" "c4a365410732707d0bdf28d7b9fa9f6098bce67dd04095222831b10a22e7e1ac", kill_on_drop: false }`
[INFO] [stderr] warning: function `assert_not_send` is never used
[INFO] [stderr]    --> src/lib.rs:208:12
[INFO] [stderr]     |
[INFO] [stderr] 208 |         fn assert_not_send<T: ?Sized>() where T: Send {}
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `assert_not_sync` is never used
[INFO] [stderr]    --> src/lib.rs:209:12
[INFO] [stderr]     |
[INFO] [stderr] 209 |         fn assert_not_sync<T: ?Sized>() where T: Sync {}
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `exercise` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/exercise-3342358cd36b2832)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::connection_is_freed_on_drop ... ok
[INFO] [stdout] test tests::error_messages_are_descriptive ... ok
[INFO] [stdout] test tests::not_send_or_sync ... ok
[INFO] [stdout] test tests::print_with_retry_succeeds ... ok
[INFO] [stdout] test tests::rejects_bad_printer ... ok
[INFO] [stdout] test tests::url_accessor_returns_original_url ... ok
[INFO] [stdout] test tests::rejects_invalid_url ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exercise
[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" "c4a365410732707d0bdf28d7b9fa9f6098bce67dd04095222831b10a22e7e1ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a365410732707d0bdf28d7b9fa9f6098bce67dd04095222831b10a22e7e1ac", kill_on_drop: false }`
[INFO] [stdout] c4a365410732707d0bdf28d7b9fa9f6098bce67dd04095222831b10a22e7e1ac
