[INFO] cloning repository https://github.com/kimikan/miox-plus [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kimikan/miox-plus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimikan%2Fmiox-plus", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimikan%2Fmiox-plus'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cd5d53c7d8efb88afc3e7461da0a2136dcd23b9d [INFO] checking kimikan/miox-plus against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimikan%2Fmiox-plus" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kimikan/miox-plus 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/kimikan/miox-plus [INFO] finished tweaking git repo https://github.com/kimikan/miox-plus [INFO] tweaked toml for git repo https://github.com/kimikan/miox-plus written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kimikan/miox-plus 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 log v0.3.8 [INFO] [stderr] Downloaded lazycell v0.4.0 [INFO] [stderr] Downloaded iovec v0.1.0 [INFO] [stderr] Downloaded net2 v0.2.29 [INFO] [stderr] Downloaded mio v0.6.9 [INFO] [stderr] Downloaded libc v0.2.26 [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_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] a513da49c2f8c1a03541bca4b96a8d0a9b1c7bfd184a1d2457552be672ca16d3 [INFO] running `Command { std: "docker" "start" "-a" "a513da49c2f8c1a03541bca4b96a8d0a9b1c7bfd184a1d2457552be672ca16d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a513da49c2f8c1a03541bca4b96a8d0a9b1c7bfd184a1d2457552be672ca16d3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a513da49c2f8c1a03541bca4b96a8d0a9b1c7bfd184a1d2457552be672ca16d3", kill_on_drop: false }` [INFO] [stdout] a513da49c2f8c1a03541bca4b96a8d0a9b1c7bfd184a1d2457552be672ca16d3 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 619d2ff34ec61880533d229a012fb03824f22f9b6236ab4cb72a2acf6af5207f [INFO] running `Command { std: "docker" "start" "-a" "619d2ff34ec61880533d229a012fb03824f22f9b6236ab4cb72a2acf6af5207f", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.26 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking lazycell v0.4.0 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking byteorder v1.0.0 [INFO] [stderr] Checking net2 v0.2.29 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking mio v0.6.9 [INFO] [stderr] Checking miox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `slab` is imported redundantly [INFO] [stdout] --> src/context.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use slab; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate slab; [INFO] [stdout] | ------------------ the item `slab` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slab` is imported redundantly [INFO] [stdout] --> src/context.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use slab; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate slab; [INFO] [stdout] | ------------------ the item `slab` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:158:25 [INFO] [stdout] | [INFO] [stdout] 158 | if let Some(mut c) = client_op { [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/server.rs:158:25 [INFO] [stdout] | [INFO] [stdout] 158 | if let Some(mut c) = client_op { [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: trait `MessageCodec` is never used [INFO] [stdout] --> src/serialize.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait MessageCodec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `MessageCodec` is never used [INFO] [stdout] --> src/serialize.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait MessageCodec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s [INFO] running `Command { std: "docker" "inspect" "619d2ff34ec61880533d229a012fb03824f22f9b6236ab4cb72a2acf6af5207f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "619d2ff34ec61880533d229a012fb03824f22f9b6236ab4cb72a2acf6af5207f", kill_on_drop: false }` [INFO] [stdout] 619d2ff34ec61880533d229a012fb03824f22f9b6236ab4cb72a2acf6af5207f [INFO] checking kimikan/miox-plus against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkimikan%2Fmiox-plus" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kimikan/miox-plus 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/kimikan/miox-plus [INFO] finished tweaking git repo https://github.com/kimikan/miox-plus [INFO] tweaked toml for git repo https://github.com/kimikan/miox-plus written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kimikan/miox-plus 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f5c53a064e5d670976daaee136ae79d186581bffb439e2c1eacec022c504fd18 [INFO] running `Command { std: "docker" "start" "-a" "f5c53a064e5d670976daaee136ae79d186581bffb439e2c1eacec022c504fd18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f5c53a064e5d670976daaee136ae79d186581bffb439e2c1eacec022c504fd18", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5c53a064e5d670976daaee136ae79d186581bffb439e2c1eacec022c504fd18", kill_on_drop: false }` [INFO] [stdout] f5c53a064e5d670976daaee136ae79d186581bffb439e2c1eacec022c504fd18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cd53e82380736b7eab81befb70117bce132434899d99adc083dfce93aaf33127 [INFO] running `Command { std: "docker" "start" "-a" "cd53e82380736b7eab81befb70117bce132434899d99adc083dfce93aaf33127", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.26 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking lazycell v0.4.0 [INFO] [stderr] Checking log v0.3.8 [INFO] [stderr] Checking slab v0.3.0 [INFO] [stderr] Checking byteorder v1.0.0 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking net2 v0.2.29 [INFO] [stderr] Checking mio v0.6.9 [INFO] [stderr] Checking miox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `slab` is imported redundantly [INFO] [stdout] --> src/context.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use slab; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate slab; [INFO] [stdout] | ------------------ the item `slab` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slab` is imported redundantly [INFO] [stdout] --> src/context.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use slab; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | extern crate slab; [INFO] [stdout] | ------------------ the item `slab` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:158:25 [INFO] [stdout] | [INFO] [stdout] 158 | if let Some(mut c) = client_op { [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: trait `MessageCodec` is never used [INFO] [stdout] --> src/serialize.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait MessageCodec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/server.rs:158:25 [INFO] [stdout] | [INFO] [stdout] 158 | if let Some(mut c) = client_op { [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: trait `MessageCodec` is never used [INFO] [stdout] --> src/serialize.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | pub trait MessageCodec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `Command { std: "docker" "inspect" "cd53e82380736b7eab81befb70117bce132434899d99adc083dfce93aaf33127", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd53e82380736b7eab81befb70117bce132434899d99adc083dfce93aaf33127", kill_on_drop: false }` [INFO] [stdout] cd53e82380736b7eab81befb70117bce132434899d99adc083dfce93aaf33127