[INFO] cloning repository https://github.com/pirogoeth/unix-named-pipe [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pirogoeth/unix-named-pipe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 78bd325c82d13451027bc0b5c686f972358b8e9a [INFO] checking pirogoeth/unix-named-pipe against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe" "/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/pirogoeth/unix-named-pipe 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/pirogoeth/unix-named-pipe [INFO] finished tweaking git repo https://github.com/pirogoeth/unix-named-pipe [INFO] tweaked toml for git repo https://github.com/pirogoeth/unix-named-pipe written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/pirogoeth/unix-named-pipe 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ctrlc v3.1.1 [INFO] [stderr] Downloaded mini-internal v0.1.8 [INFO] [stderr] Downloaded errno v0.2.4 [INFO] [stderr] Downloaded errno-dragonfly v0.1.1 [INFO] [stderr] Downloaded miniserde v0.1.8 [INFO] [stderr] Downloaded syn v0.15.11 [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] 2e233f41f6f73cc9811b7afbbea2c595adffee4ebcc5d6999710b7e978f9a9c1 [INFO] running `Command { std: "docker" "start" "-a" "2e233f41f6f73cc9811b7afbbea2c595adffee4ebcc5d6999710b7e978f9a9c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e233f41f6f73cc9811b7afbbea2c595adffee4ebcc5d6999710b7e978f9a9c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e233f41f6f73cc9811b7afbbea2c595adffee4ebcc5d6999710b7e978f9a9c1", kill_on_drop: false }` [INFO] [stdout] 2e233f41f6f73cc9811b7afbbea2c595adffee4ebcc5d6999710b7e978f9a9c1 [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] 07049b9e74f23932b959ce6a51d179a8c60aca6ee66d742f578e08cf4aa41d82 [INFO] running `Command { std: "docker" "start" "-a" "07049b9e74f23932b959ce6a51d179a8c60aca6ee66d742f578e08cf4aa41d82", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.20 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling ryu v0.2.6 [INFO] [stderr] Compiling nix v0.11.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Checking cfg-if v0.1.5 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking rand_core v0.2.2 [INFO] [stderr] Checking errno v0.2.4 [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking unix-named-pipe v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.15.11 [INFO] [stderr] Compiling mini-internal v0.1.8 [INFO] [stderr] Checking ctrlc v3.1.1 [INFO] [stderr] Checking miniserde v0.1.8 [INFO] [stdout] warning: the item `fs` is imported redundantly [INFO] [stdout] --> src/ext.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 39 | use super::*; [INFO] [stdout] | -------- the item `fs` is already imported here [INFO] [stdout] 40 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `io` is imported redundantly [INFO] [stdout] --> src/lib.rs:133:19 [INFO] [stdout] | [INFO] [stdout] 130 | use super::*; [INFO] [stdout] | -------- the item `io` is already imported here [INFO] [stdout] ... [INFO] [stdout] 133 | use std::io::{self, Error, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `numbers` is never read [INFO] [stdout] --> examples/varsz_server.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 22 | struct Message { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 23 | numbers: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Message` 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: panic message is not a string literal [INFO] [stdout] --> examples/varsz_server.rs:50:29 [INFO] [stdout] | [INFO] [stdout] 50 | _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 50 - _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] 50 + _ => panic!("error while reading from pipe: {:?}", err), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> examples/fixsz_server.rs:42:29 [INFO] [stdout] | [INFO] [stdout] 42 | _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 42 - _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] 42 + _ => panic!("error while reading from pipe: {:?}", err), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.09s [INFO] running `Command { std: "docker" "inspect" "07049b9e74f23932b959ce6a51d179a8c60aca6ee66d742f578e08cf4aa41d82", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07049b9e74f23932b959ce6a51d179a8c60aca6ee66d742f578e08cf4aa41d82", kill_on_drop: false }` [INFO] [stdout] 07049b9e74f23932b959ce6a51d179a8c60aca6ee66d742f578e08cf4aa41d82 [INFO] checking pirogoeth/unix-named-pipe against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/pirogoeth/unix-named-pipe on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pirogoeth/unix-named-pipe [INFO] finished tweaking git repo https://github.com/pirogoeth/unix-named-pipe [INFO] tweaked toml for git repo https://github.com/pirogoeth/unix-named-pipe written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/pirogoeth/unix-named-pipe 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 23c29d5b4c132913be813eec81bdad47ea4aefecece5e28d5d6664b63f297b70 [INFO] running `Command { std: "docker" "start" "-a" "23c29d5b4c132913be813eec81bdad47ea4aefecece5e28d5d6664b63f297b70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "23c29d5b4c132913be813eec81bdad47ea4aefecece5e28d5d6664b63f297b70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23c29d5b4c132913be813eec81bdad47ea4aefecece5e28d5d6664b63f297b70", kill_on_drop: false }` [INFO] [stdout] 23c29d5b4c132913be813eec81bdad47ea4aefecece5e28d5d6664b63f297b70 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5f34052abfc3385aabb28495006590abaa156375b147fca8707d8c2053b5c9fe [INFO] running `Command { std: "docker" "start" "-a" "5f34052abfc3385aabb28495006590abaa156375b147fca8707d8c2053b5c9fe", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Compiling proc-macro2 v0.4.20 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling ryu v0.2.6 [INFO] [stderr] Compiling nix v0.11.0 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.5 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking rand_core v0.2.2 [INFO] [stderr] Checking errno v0.2.4 [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking unix-named-pipe v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.15.11 [INFO] [stderr] Compiling mini-internal v0.1.8 [INFO] [stderr] Checking ctrlc v3.1.1 [INFO] [stderr] Checking miniserde v0.1.8 [INFO] [stdout] warning: the item `fs` is imported redundantly [INFO] [stdout] --> src/ext.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 39 | use super::*; [INFO] [stdout] | -------- the item `fs` is already imported here [INFO] [stdout] 40 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `io` is imported redundantly [INFO] [stdout] --> src/lib.rs:133:19 [INFO] [stdout] | [INFO] [stdout] 130 | use super::*; [INFO] [stdout] | -------- the item `io` is already imported here [INFO] [stdout] ... [INFO] [stdout] 133 | use std::io::{self, Error, ErrorKind, Read, Write}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> examples/fixsz_server.rs:42:29 [INFO] [stdout] | [INFO] [stdout] 42 | _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 42 - _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] 42 + _ => panic!("error while reading from pipe: {:?}", err), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `numbers` is never read [INFO] [stdout] --> examples/varsz_server.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 22 | struct Message { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 23 | numbers: Vec, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Message` 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: panic message is not a string literal [INFO] [stdout] --> examples/varsz_server.rs:50:29 [INFO] [stdout] | [INFO] [stdout] 50 | _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` on by default [INFO] [stdout] help: remove the `format!(..)` macro call [INFO] [stdout] | [INFO] [stdout] 50 - _ => panic!(format!("error while reading from pipe: {:?}", err)), [INFO] [stdout] 50 + _ => panic!("error while reading from pipe: {:?}", err), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s [INFO] running `Command { std: "docker" "inspect" "5f34052abfc3385aabb28495006590abaa156375b147fca8707d8c2053b5c9fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f34052abfc3385aabb28495006590abaa156375b147fca8707d8c2053b5c9fe", kill_on_drop: false }` [INFO] [stdout] 5f34052abfc3385aabb28495006590abaa156375b147fca8707d8c2053b5c9fe