[INFO] cloning repository https://github.com/jonathandturner/stream_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonathandturner/stream_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonathandturner%2Fstream_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonathandturner%2Fstream_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5da4677b4466f5304ba39716f6dfa55d83c2602a
[INFO] testing jonathandturner/stream_tutorial against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonathandturner%2Fstream_tutorial" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jonathandturner/stream_tutorial
[INFO] finished tweaking git repo https://github.com/jonathandturner/stream_tutorial
[INFO] tweaked toml for git repo https://github.com/jonathandturner/stream_tutorial written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jonathandturner/stream_tutorial on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jonathandturner/stream_tutorial 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b93b647a74078d8714490782b475de28efb12bef54481b64d8de687f10411e9
[INFO] running `Command { std: "docker" "start" "-a" "9b93b647a74078d8714490782b475de28efb12bef54481b64d8de687f10411e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b93b647a74078d8714490782b475de28efb12bef54481b64d8de687f10411e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b93b647a74078d8714490782b475de28efb12bef54481b64d8de687f10411e9", kill_on_drop: false }`
[INFO] [stdout] 9b93b647a74078d8714490782b475de28efb12bef54481b64d8de687f10411e9
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85d3956ca59878c205abeb4ce17b79418a4f82a2c2058f7134a49fd8133cd8bd
[INFO] running `Command { std: "docker" "start" "-a" "85d3956ca59878c205abeb4ce17b79418a4f82a2c2058f7134a49fd8133cd8bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ided::use_ided`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ided::use_ided;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `student::Student`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use student::Student;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `id` are never read
[INFO] [stdout]   --> src/employee.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Employee {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 39 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 40 |     id: i64,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name`, `update`, and `id` are never used
[INFO] [stdout]   --> src/employee.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Employee {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn update(&mut self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn id(&self) -> i64 {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Ided` is never used
[INFO] [stdout]  --> src/ided.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Ided {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_ided` is never used
[INFO] [stdout]  --> src/ided.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn use_ided(x: Box<dyn Ided>) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]  --> src/student.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Student {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "85d3956ca59878c205abeb4ce17b79418a4f82a2c2058f7134a49fd8133cd8bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d3956ca59878c205abeb4ce17b79418a4f82a2c2058f7134a49fd8133cd8bd", kill_on_drop: false }`
[INFO] [stdout] 85d3956ca59878c205abeb4ce17b79418a4f82a2c2058f7134a49fd8133cd8bd
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32c450f534372164b826cc6b8636b079d1c694f4788f630780055aee1923121c
[INFO] running `Command { std: "docker" "start" "-a" "32c450f534372164b826cc6b8636b079d1c694f4788f630780055aee1923121c", kill_on_drop: false }`
[INFO] [stderr]    Compiling stream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ided::use_ided`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use ided::use_ided;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `student::Student`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use student::Student;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `id` are never read
[INFO] [stdout]   --> src/employee.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct Employee {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 39 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 40 |     id: i64,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Employee` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `name`, `update`, and `id` are never used
[INFO] [stdout]   --> src/employee.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | impl Employee {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn name(&self) -> &str {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     fn update(&mut self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn id(&self) -> i64 {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Ided` is never used
[INFO] [stdout]  --> src/ided.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Ided {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_ided` is never used
[INFO] [stdout]  --> src/ided.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn use_ided(x: Box<dyn Ided>) {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Student` is never constructed
[INFO] [stdout]  --> src/student.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Student {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "32c450f534372164b826cc6b8636b079d1c694f4788f630780055aee1923121c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c450f534372164b826cc6b8636b079d1c694f4788f630780055aee1923121c", kill_on_drop: false }`
[INFO] [stdout] 32c450f534372164b826cc6b8636b079d1c694f4788f630780055aee1923121c
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 205550d972e8d38493d9c7db5d1f8bbeafa23fd40bb78334fac25543e789ee32
[INFO] running `Command { std: "docker" "start" "-a" "205550d972e8d38493d9c7db5d1f8bbeafa23fd40bb78334fac25543e789ee32", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ided::use_ided`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use ided::use_ided;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `student::Student`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use student::Student;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `name` and `id` are never read
[INFO] [stderr]   --> src/employee.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct Employee {
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] 39 |     name: String,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 40 |     id: i64,
[INFO] [stderr]    |     ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Employee` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `name`, `update`, and `id` are never used
[INFO] [stderr]   --> src/employee.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl Employee {
[INFO] [stderr]    | ------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 48 |     fn name(&self) -> &str {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] ...
[INFO] [stderr] 52 |     fn update(&mut self) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 56 |     pub fn id(&self) -> i64 {
[INFO] [stderr]    |            ^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Ided` is never used
[INFO] [stderr]  --> src/ided.rs:1:11
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub trait Ided {
[INFO] [stderr]   |           ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `use_ided` is never used
[INFO] [stderr]  --> src/ided.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn use_ided(x: Box<dyn Ided>) {
[INFO] [stderr]   |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Student` is never constructed
[INFO] [stderr]  --> src/student.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Student {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `stream` (bin "stream" test) generated 7 warnings (run `cargo fix --bin "stream" -p stream --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/stream-8ff8361f745472fd)
[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" "205550d972e8d38493d9c7db5d1f8bbeafa23fd40bb78334fac25543e789ee32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "205550d972e8d38493d9c7db5d1f8bbeafa23fd40bb78334fac25543e789ee32", kill_on_drop: false }`
[INFO] [stdout] 205550d972e8d38493d9c7db5d1f8bbeafa23fd40bb78334fac25543e789ee32