[INFO] cloning repository https://github.com/89netraM/synacor_challenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/89netraM/synacor_challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 74cb5efe08a4094fbc76f05bfe9fb294135ed676 [INFO] checking 89netraM/synacor_challenge against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/89netraM/synacor_challenge 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/89netraM/synacor_challenge [INFO] finished tweaking git repo https://github.com/89netraM/synacor_challenge [INFO] tweaked toml for git repo https://github.com/89netraM/synacor_challenge written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/89netraM/synacor_challenge 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 v3.1.8 [INFO] [stderr] Downloaded libc v0.2.93 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 30cd98fcf41bde795dbc9fde10181ccc42986d22ae1f78465a6b70e8db7a87ad [INFO] running `Command { std: "docker" "start" "-a" "30cd98fcf41bde795dbc9fde10181ccc42986d22ae1f78465a6b70e8db7a87ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "30cd98fcf41bde795dbc9fde10181ccc42986d22ae1f78465a6b70e8db7a87ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "30cd98fcf41bde795dbc9fde10181ccc42986d22ae1f78465a6b70e8db7a87ad", kill_on_drop: false }` [INFO] [stdout] 30cd98fcf41bde795dbc9fde10181ccc42986d22ae1f78465a6b70e8db7a87ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0e5265f6c177b54ad1ecfb75c96a28f8f7d3cd9ab350e40ef5bcb626f69fa04f [INFO] running `Command { std: "docker" "start" "-a" "0e5265f6c177b54ad1ecfb75c96a28f8f7d3cd9ab350e40ef5bcb626f69fa04f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v1.0.90 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking ctrlc v3.1.8 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking synacor_challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Parsing` [INFO] [stdout] --> src/compiler/mod.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | pub use compilation::{compile, parse, Parsing}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Data` is imported redundantly [INFO] [stdout] --> src/runtime/vm.rs:371:14 [INFO] [stdout] | [INFO] [stdout] 371 | use super::{super::data::Data, *}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ - the item `Data` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Parsing` [INFO] [stdout] --> src/compiler/mod.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | pub use compilation::{compile, parse, Parsing}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `HeaderCollection` is never constructed [INFO] [stdout] --> src/runtime/debugger/header_collection.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct HeaderCollection(HashMap); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `get`, and `clear` are never used [INFO] [stdout] --> src/runtime/debugger/header_collection.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 5 | impl HeaderCollection { [INFO] [stdout] | --------------------- associated items in this implementation [INFO] [stdout] 6 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 10 | pub fn add(&mut self, line: &str) -> Result<(), String> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn get(&self, name: &str) -> Option::Err>> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn clear(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.12s [INFO] running `Command { std: "docker" "inspect" "0e5265f6c177b54ad1ecfb75c96a28f8f7d3cd9ab350e40ef5bcb626f69fa04f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e5265f6c177b54ad1ecfb75c96a28f8f7d3cd9ab350e40ef5bcb626f69fa04f", kill_on_drop: false }` [INFO] [stdout] 0e5265f6c177b54ad1ecfb75c96a28f8f7d3cd9ab350e40ef5bcb626f69fa04f [INFO] checking 89netraM/synacor_challenge against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F89netraM%2Fsynacor_challenge" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/89netraM/synacor_challenge 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/89netraM/synacor_challenge [INFO] finished tweaking git repo https://github.com/89netraM/synacor_challenge [INFO] tweaked toml for git repo https://github.com/89netraM/synacor_challenge written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/89netraM/synacor_challenge 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fd0b91802dbb05efc5ecb4ebbf16dbd5737dfd8761c025745529cee295161867 [INFO] running `Command { std: "docker" "start" "-a" "fd0b91802dbb05efc5ecb4ebbf16dbd5737dfd8761c025745529cee295161867", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fd0b91802dbb05efc5ecb4ebbf16dbd5737dfd8761c025745529cee295161867", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd0b91802dbb05efc5ecb4ebbf16dbd5737dfd8761c025745529cee295161867", kill_on_drop: false }` [INFO] [stdout] fd0b91802dbb05efc5ecb4ebbf16dbd5737dfd8761c025745529cee295161867 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ba299e7269bdf7b4a5dc826641bdd12292212981a9686bf1004448b5cadb032d [INFO] running `Command { std: "docker" "start" "-a" "ba299e7269bdf7b4a5dc826641bdd12292212981a9686bf1004448b5cadb032d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v1.0.90 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking ctrlc v3.1.8 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking synacor_challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Parsing` [INFO] [stdout] --> src/compiler/mod.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | pub use compilation::{compile, parse, Parsing}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Parsing` [INFO] [stdout] --> src/compiler/mod.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | pub use compilation::{compile, parse, Parsing}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Data` is imported redundantly [INFO] [stdout] --> src/runtime/vm.rs:371:14 [INFO] [stdout] | [INFO] [stdout] 371 | use super::{super::data::Data, *}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ - the item `Data` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `HeaderCollection` is never constructed [INFO] [stdout] --> src/runtime/debugger/header_collection.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub struct HeaderCollection(HashMap); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add`, `get`, and `clear` are never used [INFO] [stdout] --> src/runtime/debugger/header_collection.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 5 | impl HeaderCollection { [INFO] [stdout] | --------------------- associated items in this implementation [INFO] [stdout] 6 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 10 | pub fn add(&mut self, line: &str) -> Result<(), String> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 32 | pub fn get(&self, name: &str) -> Option::Err>> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn clear(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings 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 19.40s [INFO] running `Command { std: "docker" "inspect" "ba299e7269bdf7b4a5dc826641bdd12292212981a9686bf1004448b5cadb032d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba299e7269bdf7b4a5dc826641bdd12292212981a9686bf1004448b5cadb032d", kill_on_drop: false }` [INFO] [stdout] ba299e7269bdf7b4a5dc826641bdd12292212981a9686bf1004448b5cadb032d