[INFO] cloning repository https://github.com/szhongren/rustbookv2 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/szhongren/rustbookv2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Frustbookv2", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Frustbookv2'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8534333cc27bf65741c823c98fcd03235b40ada7 [INFO] checking szhongren/rustbookv2 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Frustbookv2" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/szhongren/rustbookv2 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/szhongren/rustbookv2 [INFO] finished tweaking git repo https://github.com/szhongren/rustbookv2 [INFO] tweaked toml for git repo https://github.com/szhongren/rustbookv2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/szhongren/rustbookv2 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] 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 szhongren/rustbookv2 against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Frustbookv2" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/szhongren/rustbookv2 on toolchain 7622c0f807a4e13c4db886a1681bf343795692df [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/szhongren/rustbookv2 [INFO] finished tweaking git repo https://github.com/szhongren/rustbookv2 [INFO] tweaked toml for git repo https://github.com/szhongren/rustbookv2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/szhongren/rustbookv2 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" "+7622c0f807a4e13c4db886a1681bf343795692df" "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 szhongren/rustbookv2 against try#7622c0f807a4e13c4db886a1681bf343795692df+rustflags=-Dnon_local_definitions for pr-120393 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fszhongren%2Frustbookv2" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/szhongren/rustbookv2 on toolchain 7622c0f807a4e13c4db886a1681bf343795692df [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/szhongren/rustbookv2 [INFO] finished tweaking git repo https://github.com/szhongren/rustbookv2 [INFO] tweaked toml for git repo https://github.com/szhongren/rustbookv2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/szhongren/rustbookv2 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" "+7622c0f807a4e13c4db886a1681bf343795692df" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7622c0f807a4e13c4db886a1681bf343795692df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5998ed5f9a6ca6ce9a2a15771f916566e915638ff49bfc3bcbaf72f199362d4b [INFO] running `Command { std: "docker" "start" "-a" "5998ed5f9a6ca6ce9a2a15771f916566e915638ff49bfc3bcbaf72f199362d4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5998ed5f9a6ca6ce9a2a15771f916566e915638ff49bfc3bcbaf72f199362d4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5998ed5f9a6ca6ce9a2a15771f916566e915638ff49bfc3bcbaf72f199362d4b", kill_on_drop: false }` [INFO] [stdout] 5998ed5f9a6ca6ce9a2a15771f916566e915638ff49bfc3bcbaf72f199362d4b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dnon_local_definitions" "-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" "+7622c0f807a4e13c4db886a1681bf343795692df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c55f3b8a55885a3326e1cae8bd432eb8e1f6f36ae8c921c60a6068111bd1edaf [INFO] running `Command { std: "docker" "start" "-a" "c55f3b8a55885a3326e1cae8bd432eb8e1f6f36ae8c921c60a6068111bd1edaf", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.29 [INFO] [stderr] Checking rand v0.3.16 [INFO] [stderr] Checking rustbook v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `PartialOrd` is imported redundantly [INFO] [stdout] --> src/section10.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | use std::cmp::PartialOrd; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/7622c0f807a4e13c4db886a1681bf343795692df/library/std/src/prelude/mod.rs:105:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `PartialOrd` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `PartialOrd` is imported redundantly [INFO] [stdout] --> src/section10.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | use std::cmp::PartialOrd; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/7622c0f807a4e13c4db886a1681bf343795692df/library/std/src/prelude/mod.rs:105:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `PartialOrd` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `username`, `sign_in_count`, and `active` are never read [INFO] [stdout] --> src/section05.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 3 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 4 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | email: String, [INFO] [stdout] 6 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 7 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/section05.rs:43:18 [INFO] [stdout] | [INFO] [stdout] 43 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 43 | struct Color((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/section05.rs:44:18 [INFO] [stdout] | [INFO] [stdout] 44 | struct Point(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 44 | struct Point((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `kind` and `address` are never read [INFO] [stdout] --> src/section06.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 12 | struct IpAddr { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 13 | kind: IpAddrKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 14 | address: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/section06.rs:33:16 [INFO] [stdout] | [INFO] [stdout] 33 | V4(String), // attach a String to each enum variant [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 33 | V4(()), // attach a String to each enum variant [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/section06.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 34 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/section06.rs:47:16 [INFO] [stdout] | [INFO] [stdout] 47 | V4(u8, u8, u8, u8), // allows different variants to have different value types attached [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 47 | V4((), (), (), ()), // allows different variants to have different value types attached [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/section06.rs:48:16 [INFO] [stdout] | [INFO] [stdout] 48 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 48 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `username`, `sign_in_count`, and `active` are never read [INFO] [stdout] --> src/section05.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 3 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 4 | username: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 5 | email: String, [INFO] [stdout] 6 | sign_in_count: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 7 | active: bool, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/section05.rs:43:18 [INFO] [stdout] | [INFO] [stdout] 43 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 43 | struct Color((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/section05.rs:44:18 [INFO] [stdout] | [INFO] [stdout] 44 | struct Point(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 44 | struct Point((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `kind` and `address` are never read [INFO] [stdout] --> src/section06.rs:13:13 [INFO] [stdout] | [INFO] [stdout] 12 | struct IpAddr { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 13 | kind: IpAddrKind, [INFO] [stdout] | ^^^^ [INFO] [stdout] 14 | address: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `IpAddr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/section06.rs:33:16 [INFO] [stdout] | [INFO] [stdout] 33 | V4(String), // attach a String to each enum variant [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 33 | V4(()), // attach a String to each enum variant [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/section06.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 34 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> src/section06.rs:47:16 [INFO] [stdout] | [INFO] [stdout] 47 | V4(u8, u8, u8, u8), // allows different variants to have different value types attached [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 47 | V4((), (), (), ()), // allows different variants to have different value types attached [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/section06.rs:48:16 [INFO] [stdout] | [INFO] [stdout] 48 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 48 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "c55f3b8a55885a3326e1cae8bd432eb8e1f6f36ae8c921c60a6068111bd1edaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c55f3b8a55885a3326e1cae8bd432eb8e1f6f36ae8c921c60a6068111bd1edaf", kill_on_drop: false }` [INFO] [stdout] c55f3b8a55885a3326e1cae8bd432eb8e1f6f36ae8c921c60a6068111bd1edaf