[INFO] cloning repository https://github.com/mjbenitez95/rust-generics [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mjbenitez95/rust-generics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-generics", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-generics'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 247ab81a24d8dfefce83cc6568a01b6963bf6fa3 [INFO] checking mjbenitez95/rust-generics against master#e23ae72ac7a393961886ea62df065ebb6def7d51 for pr-126571 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-generics" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mjbenitez95/rust-generics on toolchain e23ae72ac7a393961886ea62df065ebb6def7d51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mjbenitez95/rust-generics [INFO] finished tweaking git repo https://github.com/mjbenitez95/rust-generics [INFO] tweaked toml for git repo https://github.com/mjbenitez95/rust-generics written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mjbenitez95/rust-generics 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" "+e23ae72ac7a393961886ea62df065ebb6def7d51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking mjbenitez95/rust-generics against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-generics" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mjbenitez95/rust-generics on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mjbenitez95/rust-generics [INFO] finished tweaking git repo https://github.com/mjbenitez95/rust-generics [INFO] tweaked toml for git repo https://github.com/mjbenitez95/rust-generics written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/mjbenitez95/rust-generics 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" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking mjbenitez95/rust-generics against try#397f8958d101b259f6baaf92d107d770c95c3ce0 for pr-126571 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjbenitez95%2Frust-generics" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mjbenitez95/rust-generics on toolchain 397f8958d101b259f6baaf92d107d770c95c3ce0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mjbenitez95/rust-generics [INFO] finished tweaking git repo https://github.com/mjbenitez95/rust-generics [INFO] tweaked toml for git repo https://github.com/mjbenitez95/rust-generics written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/mjbenitez95/rust-generics 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" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e3fc6f348e7ee1aca9c4b27ecf02599efc75e997b68eeb4a7b57096b62da049 [INFO] running `Command { std: "docker" "start" "-a" "1e3fc6f348e7ee1aca9c4b27ecf02599efc75e997b68eeb4a7b57096b62da049", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e3fc6f348e7ee1aca9c4b27ecf02599efc75e997b68eeb4a7b57096b62da049", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e3fc6f348e7ee1aca9c4b27ecf02599efc75e997b68eeb4a7b57096b62da049", kill_on_drop: false }` [INFO] [stdout] 1e3fc6f348e7ee1aca9c4b27ecf02599efc75e997b68eeb4a7b57096b62da049 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+397f8958d101b259f6baaf92d107d770c95c3ce0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 69be9c52b4f26e9be3ab5a0648013642a87bb9579870a775e5406d0108865453 [INFO] running `Command { std: "docker" "start" "-a" "69be9c52b4f26e9be3ab5a0648013642a87bb9579870a775e5406d0108865453", kill_on_drop: false }` [INFO] [stderr] Checking generics v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `result` is assigned to, but never used [INFO] [stdout] --> src/lifetimes.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_result` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `result` is assigned to, but never used [INFO] [stdout] --> src/lifetimes.rs:46:9 [INFO] [stdout] | [INFO] [stdout] 46 | let result; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_result` instead [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/lifetimes.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | result = longest(string1.as_str(), string2.as_str()); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `result` is never read [INFO] [stdout] --> src/lifetimes.rs:49:9 [INFO] [stdout] | [INFO] [stdout] 49 | result = longest(string1.as_str(), string2.as_str()); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/traits.rs:49:28 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn where_clauses(t: &T, u: &U) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `t` [INFO] [stdout] --> src/traits.rs:49:28 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn where_clauses(t: &T, u: &U) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_t` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/traits.rs:49:35 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn where_clauses(t: &T, u: &U) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `u` [INFO] [stdout] --> src/traits.rs:49:35 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn where_clauses(t: &T, u: &U) [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_u` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `integer` [INFO] [stdout] --> src/main.rs:89:9 [INFO] [stdout] | [INFO] [stdout] 89 | let integer = Point { x: 5, y: 10 }; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `integer` [INFO] [stdout] --> src/main.rs:89:9 [INFO] [stdout] | [INFO] [stdout] 89 | let integer = Point { x: 5, y: 10 }; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_integer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `unacceptable_lifetime` is never used [INFO] [stdout] --> src/lifetimes.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn unacceptable_lifetime() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `headline`, `location`, and `content` are never read [INFO] [stdout] --> src/traits.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct NewsArticle { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 12 | pub headline: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 13 | pub location: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 14 | pub author: String, [INFO] [stdout] 15 | pub content: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `unacceptable_lifetime` is never used [INFO] [stdout] --> src/lifetimes.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn unacceptable_lifetime() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `headline`, `location`, and `content` are never read [INFO] [stdout] --> src/traits.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct NewsArticle { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] 12 | pub headline: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 13 | pub location: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 14 | pub author: String, [INFO] [stdout] 15 | pub content: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `content`, `reply`, and `retweet` are never read [INFO] [stdout] --> src/traits.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct Tweet { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 19 | pub username: String, [INFO] [stdout] 20 | pub content: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 21 | pub reply: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 22 | pub retweet: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `content`, `reply`, and `retweet` are never read [INFO] [stdout] --> src/traits.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct Tweet { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 19 | pub username: String, [INFO] [stdout] 20 | pub content: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 21 | pub reply: bool, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 22 | pub retweet: bool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `notify` is never used [INFO] [stdout] --> src/traits.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn notify(item: &impl Summary) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `notify` is never used [INFO] [stdout] --> src/traits.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn notify(item: &impl Summary) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `where_clauses` is never used [INFO] [stdout] --> src/traits.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn where_clauses(t: &T, u: &U) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `where_clauses` is never used [INFO] [stdout] --> src/traits.rs:49:8 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn where_clauses(t: &T, u: &U) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] running `Command { std: "docker" "inspect" "69be9c52b4f26e9be3ab5a0648013642a87bb9579870a775e5406d0108865453", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69be9c52b4f26e9be3ab5a0648013642a87bb9579870a775e5406d0108865453", kill_on_drop: false }` [INFO] [stdout] 69be9c52b4f26e9be3ab5a0648013642a87bb9579870a775e5406d0108865453