[INFO] cloning repository https://github.com/shakyShane/cb2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shakyShane/cb2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Fcb2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Fcb2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7497be9f871dc5de20bb0dbf5ae3a9923650bcd3
[INFO] checking shakyShane/cb2 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FshakyShane%2Fcb2" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shakyShane/cb2 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shakyShane/cb2
[INFO] finished tweaking git repo https://github.com/shakyShane/cb2
[INFO] tweaked toml for git repo https://github.com/shakyShane/cb2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shakyShane/cb2 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-process v0.2.3
[INFO] [stderr]   Downloaded from_file v0.1.3
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb100e8b3099c11622ddd163e72d738e731649843aa6a1a4e65f9fba32798bf6
[INFO] running `Command { std: "docker" "start" "-a" "cb100e8b3099c11622ddd163e72d738e731649843aa6a1a4e65f9fba32798bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb100e8b3099c11622ddd163e72d738e731649843aa6a1a4e65f9fba32798bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb100e8b3099c11622ddd163e72d738e731649843aa6a1a4e65f9fba32798bf6", kill_on_drop: false }`
[INFO] [stdout] cb100e8b3099c11622ddd163e72d738e731649843aa6a1a4e65f9fba32798bf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75afc4ba75e7d63744dbabe46a4c20559c0089ab5bb4adb78da555915032235d
[INFO] running `Command { std: "docker" "start" "-a" "75afc4ba75e7d63744dbabe46a4c20559c0089ab5bb4adb78da555915032235d", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling from_file_derive v0.1.3
[INFO] [stderr]     Checking serde_json v1.0.33
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[INFO] [stderr]     Checking from_file v0.1.3
[INFO] [stderr]     Checking cb2_core v0.1.0 (/opt/rustwide/workdir/cb2_core)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cb2_core/src/exec.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn create_sync(task: TaskItem) -> Box<Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn create_sync(task: TaskItem) -> Box<dyn Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cb2_core/src/exec.rs:66:40
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn create_async(task: TaskItem) -> Box<Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn create_async(task: TaskItem) -> Box<dyn Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cb2_core/src/exec.rs:81:40
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn create_seq(group: TaskGroup) -> Box<Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn create_seq(group: TaskGroup) -> Box<dyn Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cb2_core/src/exec.rs:38:39
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn create_sync(task: TaskItem) -> Box<Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn create_sync(task: TaskItem) -> Box<dyn Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cb2_core/src/exec.rs:66:40
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn create_async(task: TaskItem) -> Box<Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn create_async(task: TaskItem) -> Box<dyn Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> cb2_core/src/exec.rs:81:40
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn create_seq(group: TaskGroup) -> Box<Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 81 | fn create_seq(group: TaskGroup) -> Box<dyn Future<Item = Report, Error = Report> + Send> {
[INFO] [stdout]    |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> cb2_core/src/exec.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     End { id: usize, exit_code: Option<i32> },
[INFO] [stdout]   |     ---   ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> cb2_core/src/exec.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     EndGroup { id: usize, reports: Vec<Report> },
[INFO] [stdout]    |     --------   ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> cb2_core/src/exec.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Error { id: usize },
[INFO] [stdout]    |     -----   ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `reports` are never read
[INFO] [stdout]   --> cb2_core/src/exec.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ErrorGroup { id: usize, reports: Vec<Report> },
[INFO] [stdout]    |     ----------   ^^         ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> cb2_core/src/exec.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |     End { id: usize, exit_code: Option<i32> },
[INFO] [stdout]   |     ---   ^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> cb2_core/src/exec.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     EndGroup { id: usize, reports: Vec<Report> },
[INFO] [stdout]    |     --------   ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]   --> cb2_core/src/exec.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Error { id: usize },
[INFO] [stdout]    |     -----   ^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `reports` are never read
[INFO] [stdout]   --> cb2_core/src/exec.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 |     ErrorGroup { id: usize, reports: Vec<Report> },
[INFO] [stdout]    |     ----------   ^^         ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking cb2 v0.1.0 (/opt/rustwide/workdir/cb2)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "75afc4ba75e7d63744dbabe46a4c20559c0089ab5bb4adb78da555915032235d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75afc4ba75e7d63744dbabe46a4c20559c0089ab5bb4adb78da555915032235d", kill_on_drop: false }`
[INFO] [stdout] 75afc4ba75e7d63744dbabe46a4c20559c0089ab5bb4adb78da555915032235d
