[INFO] cloning repository https://github.com/dreamerldq/learning-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dreamerldq/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdreamerldq%2Flearning-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdreamerldq%2Flearning-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 126108aa23f9d6566133883ba782bb81311191a7 [INFO] checking dreamerldq/learning-rust against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdreamerldq%2Flearning-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. 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[INFO] started tweaking git repo https://github.com/dreamerldq/learning-rust [INFO] finished tweaking git repo https://github.com/dreamerldq/learning-rust [INFO] tweaked toml for git repo https://github.com/dreamerldq/learning-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/dreamerldq/learning-rust on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/dreamerldq/learning-rust 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-derive v0.2.5 [INFO] [stderr] Downloaded phf_codegen v0.8.0 [INFO] [stderr] Downloaded precomputed-hash v0.1.1 [INFO] [stderr] Downloaded new_debug_unreachable v1.0.4 [INFO] [stderr] Downloaded phf_generator v0.8.0 [INFO] [stderr] Downloaded phf_shared v0.10.0 [INFO] [stderr] Downloaded mac v0.1.1 [INFO] [stderr] Downloaded string_cache_codegen v0.5.1 [INFO] [stderr] Downloaded string_cache v0.8.3 [INFO] [stderr] Downloaded gif v0.10.3 [INFO] [stderr] Downloaded siphasher v0.3.10 [INFO] [stderr] Downloaded tendril v0.4.2 [INFO] [stderr] Downloaded html2md v0.2.13 [INFO] [stderr] Downloaded html5ever v0.25.2 [INFO] [stderr] Downloaded mio v0.8.2 [INFO] [stderr] Downloaded deflate v0.7.20 [INFO] [stderr] Downloaded combine v4.6.3 [INFO] [stderr] Downloaded reqwest v0.11.10 [INFO] [stderr] Downloaded hyper v0.14.18 [INFO] [stderr] Downloaded syn v0.15.44 [INFO] [stderr] Downloaded image v0.19.0 [INFO] [stderr] Downloaded openssl v0.10.38 [INFO] [stderr] 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"/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 93ed84b439457dccd6efea78d4b811e1c6fae10d0991534545506f670af98d62 [INFO] running `Command { std: "docker" "start" "-a" "93ed84b439457dccd6efea78d4b811e1c6fae10d0991534545506f670af98d62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "93ed84b439457dccd6efea78d4b811e1c6fae10d0991534545506f670af98d62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93ed84b439457dccd6efea78d4b811e1c6fae10d0991534545506f670af98d62", kill_on_drop: false }` [INFO] [stdout] 93ed84b439457dccd6efea78d4b811e1c6fae10d0991534545506f670af98d62 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 77d2f8b4aaeb77437a9d7df53794ae06650b3c60bc356f1f9a80e110344ea3df [INFO] running `Command { std: "docker" "start" "-a" "77d2f8b4aaeb77437a9d7df53794ae06650b3c60bc356f1f9a80e110344ea3df", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling ppv-lite86 v0.2.16 [INFO] [stderr] Compiling siphasher v0.3.10 [INFO] [stderr] Checking pin-project-lite v0.2.8 [INFO] [stderr] Compiling pkg-config v0.3.24 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling parking_lot_core v0.8.5 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Checking instant v0.1.12 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Checking new_debug_unreachable v1.0.4 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling syn v1.0.89 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Checking mac v0.1.1 [INFO] [stderr] Checking futf v0.1.5 [INFO] [stderr] Checking phf_shared v0.10.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling indexmap v1.8.0 [INFO] [stderr] Checking precomputed-hash v0.1.1 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Checking utf-8 v0.7.6 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking phf v0.8.0 [INFO] [stderr] Checking http v0.2.6 [INFO] [stderr] Checking tendril v0.4.2 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Checking tracing-core v0.1.23 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking mio v0.8.2 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Checking parking_lot v0.11.2 [INFO] [stderr] Compiling httparse v1.6.0 [INFO] [stderr] Checking matches v0.1.9 [INFO] [stderr] Compiling native-tls v0.2.8 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking tinyvec_macros v0.1.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking tinyvec v1.5.1 [INFO] [stderr] Checking tracing v0.1.32 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling openssl-sys v0.9.72 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Checking tokio v1.17.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking try-lock v0.2.3 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking unicode-bidi v0.3.7 [INFO] [stderr] Compiling encoding_rs v0.8.30 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking httpdate v1.0.2 [INFO] [stderr] Checking http-body v0.4.4 [INFO] [stderr] Checking tower-service v0.3.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking unicode-normalization v0.1.19 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking gif v0.10.3 [INFO] [stderr] Checking base64 v0.13.0 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking deflate v0.7.20 [INFO] [stderr] Checking mime v0.3.16 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking ipnet v2.4.0 [INFO] [stderr] Checking ltrait v0.1.0 (/opt/rustwide/workdir/ltrait) [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> ltrait/src/main.rs:54:11 [INFO] [stdout] | [INFO] [stdout] 54 | if(self.x>=self.y){ [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 54 - if(self.x>=self.y){ [INFO] [stdout] 54 + if self.x>=self.y { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item2` [INFO] [stdout] --> ltrait/src/main.rs:25:37 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn notify3(item1: impl Summary, item2: impl Summary + Display){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `item1` [INFO] [stdout] --> ltrait/src/main.rs:31:45 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn notify4(item:T, item1:T){ [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_item1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> ltrait/src/main.rs:35:25 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn notify5(a:T,b:U)->String [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NewsArtical` is never constructed [INFO] [stdout] --> ltrait/src/main.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | struct NewsArtical { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Pair` is never constructed [INFO] [stdout] --> ltrait/src/main.rs:42:8 [INFO] [stdout] | [INFO] [stdout] 42 | struct Pair{ [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> ltrait/src/main.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 47 | impl Pair { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 48 | fn new(x:T, y: T)->Self{ [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `cmp_display` is never used [INFO] [stdout] --> ltrait/src/main.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 52 | impl Pair { [INFO] [stdout] | ------------------------------------ method in this implementation [INFO] [stdout] 53 | fn cmp_display(&self){ [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking result v0.1.0 (/opt/rustwide/workdir/result) [INFO] [stderr] Checking world_hello v0.1.0 (/opt/rustwide/workdir/learning) [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> learning/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | never_return(); [INFO] [stdout] | -------------- any code following this expression is unreachable [INFO] [stdout] 8 | assert_eq!(s, 3); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling phf_generator v0.8.0 [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> learning/src/main.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let s = sum(x, y); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking png v0.12.0 [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> result/src/main.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `id` [INFO] [stdout] --> result/src/main.rs:44:48 [INFO] [stdout] | [INFO] [stdout] 44 | fn read_username_from_file() -> Result { [INFO] [stdout] | ^^ [INFO] [stdout] | | [INFO] [stdout] | use of unresolved module or unlinked crate `id` [INFO] [stdout] | help: a builtin type with a similar name exists: `i8` [INFO] [stdout] | [INFO] [stdout] = help: if you wanted to use a crate named `id`, use `cargo add id` to add it to your `Cargo.toml` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0433`. [INFO] [stdout] [INFO] [stderr] error: could not compile `result` (bin "result") due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "77d2f8b4aaeb77437a9d7df53794ae06650b3c60bc356f1f9a80e110344ea3df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77d2f8b4aaeb77437a9d7df53794ae06650b3c60bc356f1f9a80e110344ea3df", kill_on_drop: false }` [INFO] [stdout] 77d2f8b4aaeb77437a9d7df53794ae06650b3c60bc356f1f9a80e110344ea3df