[INFO] cloning repository https://github.com/KazumaTakata/rust_shell [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KazumaTakata/rust_shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKazumaTakata%2Frust_shell", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKazumaTakata%2Frust_shell'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 06ee28332915ee6731d601e684cd93adb5368294 [INFO] checking KazumaTakata/rust_shell against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKazumaTakata%2Frust_shell" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/KazumaTakata/rust_shell on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/KazumaTakata/rust_shell [INFO] finished tweaking git repo https://github.com/KazumaTakata/rust_shell [INFO] tweaked toml for git repo https://github.com/KazumaTakata/rust_shell written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/KazumaTakata/rust_shell 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e082de6d27f7157f37e29b3e639a6ec479db7d013e0aa8b2cf56488da4a13dcb [INFO] running `Command { std: "docker" "start" "-a" "e082de6d27f7157f37e29b3e639a6ec479db7d013e0aa8b2cf56488da4a13dcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e082de6d27f7157f37e29b3e639a6ec479db7d013e0aa8b2cf56488da4a13dcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e082de6d27f7157f37e29b3e639a6ec479db7d013e0aa8b2cf56488da4a13dcb", kill_on_drop: false }` [INFO] [stdout] e082de6d27f7157f37e29b3e639a6ec479db7d013e0aa8b2cf56488da4a13dcb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a0ca6d7f93d5e90948870814e525f7a99f6441610ac32089ea1c9e9b8834b79 [INFO] running `Command { std: "docker" "start" "-a" "9a0ca6d7f93d5e90948870814e525f7a99f6441610ac32089ea1c9e9b8834b79", kill_on_drop: false }` [INFO] [stderr] Checking rust_shell v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 6 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Write` is imported redundantly [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::prelude::*; [INFO] [stdout] | ------------------- the item `Write` is already imported here [INFO] [stdout] 6 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:181:86 [INFO] [stdout] | [INFO] [stdout] 181 | ... Err(why) => panic!("couldn't write to wc stdin: {}", why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:181:86 [INFO] [stdout] | [INFO] [stdout] 181 | ... Err(why) => panic!("couldn't write to wc stdin: {}", why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:187:83 [INFO] [stdout] | [INFO] [stdout] 187 | ... Err(why) => panic!("couldn't read wc stdout: {}", why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:187:83 [INFO] [stdout] | [INFO] [stdout] 187 | ... Err(why) => panic!("couldn't read wc stdout: {}", why.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | let mut term_seq = SeqCommandNode { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:86:17 [INFO] [stdout] | [INFO] [stdout] 86 | let mut term_seq = SeqCommandNode { [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `why` [INFO] [stdout] --> src/main.rs:174:25 [INFO] [stdout] | [INFO] [stdout] 174 | Err(why) => None, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_why` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `why` [INFO] [stdout] --> src/main.rs:174:25 [INFO] [stdout] | [INFO] [stdout] 174 | Err(why) => None, [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_why` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `why` [INFO] [stdout] --> src/main.rs:201:25 [INFO] [stdout] | [INFO] [stdout] 201 | Err(why) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_why` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:212:33 [INFO] [stdout] | [INFO] [stdout] 212 | ... Err(e) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/main.rs:227:9 [INFO] [stdout] | [INFO] [stdout] 227 | let home = env::var("HOME").unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `why` [INFO] [stdout] --> src/main.rs:201:25 [INFO] [stdout] | [INFO] [stdout] 201 | Err(why) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_why` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:212:33 [INFO] [stdout] | [INFO] [stdout] 212 | ... Err(e) => { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `home` [INFO] [stdout] --> src/main.rs:227:9 [INFO] [stdout] | [INFO] [stdout] 227 | let home = env::var("HOME").unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_home` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/main.rs:244:9 [INFO] [stdout] | [INFO] [stdout] 244 | let index = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/main.rs:244:9 [INFO] [stdout] | [INFO] [stdout] 244 | let index = 0; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Type` should have a snake case name [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | Type: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier [INFO] [stdout] | [INFO] [stdout] 12 | r#type: String, [INFO] [stdout] | ~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Type` should have a snake case name [INFO] [stdout] --> src/main.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | Type: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier [INFO] [stdout] | [INFO] [stdout] 12 | r#type: String, [INFO] [stdout] | ~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Data` should have a snake case name [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | Data: String, [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Type` should have a snake case name [INFO] [stdout] --> src/main.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | Type: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier [INFO] [stdout] | [INFO] [stdout] 45 | r#type: String, [INFO] [stdout] | ~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:159:13 [INFO] [stdout] | [INFO] [stdout] 159 | env::set_current_dir(&root); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 159 | let _ = env::set_current_dir(&root); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Data` should have a snake case name [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | Data: String, [INFO] [stdout] | ^^^^ help: convert the identifier to snake case: `data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Type` should have a snake case name [INFO] [stdout] --> src/main.rs:45:5 [INFO] [stdout] | [INFO] [stdout] 45 | Type: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] help: rename the identifier or convert it to a snake case raw identifier [INFO] [stdout] | [INFO] [stdout] 45 | r#type: String, [INFO] [stdout] | ~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:159:13 [INFO] [stdout] | [INFO] [stdout] 159 | env::set_current_dir(&root); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 159 | let _ = env::set_current_dir(&root); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s [INFO] running `Command { std: "docker" "inspect" "9a0ca6d7f93d5e90948870814e525f7a99f6441610ac32089ea1c9e9b8834b79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a0ca6d7f93d5e90948870814e525f7a99f6441610ac32089ea1c9e9b8834b79", kill_on_drop: false }` [INFO] [stdout] 9a0ca6d7f93d5e90948870814e525f7a99f6441610ac32089ea1c9e9b8834b79