[INFO] fetching crate syswall 0.3.1... [INFO] checking syswall-0.3.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate syswall 0.3.1 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate syswall 0.3.1 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 crates.io crate syswall 0.3.1 [INFO] finished tweaking crates.io crate syswall 0.3.1 [INFO] tweaked toml for crates.io crate syswall 0.3.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 19 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding nix v0.13.1 (latest: v0.28.0) [INFO] [stderr] Adding signal-hook v0.1.17 (latest: v0.3.17) [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 nix v0.13.1 [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] db6845b5767a984e1e02aa055b82a3567f10c8ccbcc5cfde91b32d068b284128 [INFO] running `Command { std: "docker" "start" "-a" "db6845b5767a984e1e02aa055b82a3567f10c8ccbcc5cfde91b32d068b284128", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db6845b5767a984e1e02aa055b82a3567f10c8ccbcc5cfde91b32d068b284128", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db6845b5767a984e1e02aa055b82a3567f10c8ccbcc5cfde91b32d068b284128", kill_on_drop: false }` [INFO] [stdout] db6845b5767a984e1e02aa055b82a3567f10c8ccbcc5cfde91b32d068b284128 [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] 6d9087ab86bbc74a95e1a7305dadcd26eddfb46050f0bd87a14ec99422729268 [INFO] running `Command { std: "docker" "start" "-a" "6d9087ab86bbc74a95e1a7305dadcd26eddfb46050f0bd87a14ec99422729268", kill_on_drop: false }` [INFO] [stderr] Compiling nix v0.13.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking signal-hook v0.1.17 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking syswall v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `signal_hook` is imported redundantly [INFO] [stdout] --> src/child_process.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use signal_hook; [INFO] [stdout] | ^^^^^^^^^^^ the item `signal_hook` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/syscalls.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use libc; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/tracer_conf.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `signal_hook` is imported redundantly [INFO] [stdout] --> src/child_process.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use signal_hook; [INFO] [stdout] | ^^^^^^^^^^^ the item `signal_hook` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/syscalls.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use libc; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/tracer_conf.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/child_process.rs:300:17 [INFO] [stdout] | [INFO] [stdout] 300 | let mut child = processes.0.get_mut(&pid).ok_or_else(|| format!( [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/child_process.rs:300:17 [INFO] [stdout] | [INFO] [stdout] 300 | let mut child = processes.0.get_mut(&pid).ok_or_else(|| format!( [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/child_process.rs:418:32 [INFO] [stdout] | [INFO] [stdout] 418 | } else if let Some(mut child) = processes.0.get_mut(&pid) { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/child_process.rs:418:32 [INFO] [stdout] | [INFO] [stdout] 418 | } else if let Some(mut child) = processes.0.get_mut(&pid) { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.76s [INFO] running `Command { std: "docker" "inspect" "6d9087ab86bbc74a95e1a7305dadcd26eddfb46050f0bd87a14ec99422729268", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d9087ab86bbc74a95e1a7305dadcd26eddfb46050f0bd87a14ec99422729268", kill_on_drop: false }` [INFO] [stdout] 6d9087ab86bbc74a95e1a7305dadcd26eddfb46050f0bd87a14ec99422729268 [INFO] checking syswall-0.3.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] extracting crate syswall 0.3.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate syswall 0.3.1 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate syswall 0.3.1 [INFO] finished tweaking crates.io crate syswall 0.3.1 [INFO] tweaked toml for crates.io crate syswall 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 19 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding nix v0.13.1 (latest: v0.28.0) [INFO] [stderr] Adding signal-hook v0.1.17 (latest: v0.3.17) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a7573440f420bd4f126297fd69f119c3a80e1a2ebdb36bb8720c27bd16007bf2 [INFO] running `Command { std: "docker" "start" "-a" "a7573440f420bd4f126297fd69f119c3a80e1a2ebdb36bb8720c27bd16007bf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a7573440f420bd4f126297fd69f119c3a80e1a2ebdb36bb8720c27bd16007bf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7573440f420bd4f126297fd69f119c3a80e1a2ebdb36bb8720c27bd16007bf2", kill_on_drop: false }` [INFO] [stdout] a7573440f420bd4f126297fd69f119c3a80e1a2ebdb36bb8720c27bd16007bf2 [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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a3d91f395dec339942c578883eb6b628e54289b87b9b7baeee621c7d22948dec [INFO] running `Command { std: "docker" "start" "-a" "a3d91f395dec339942c578883eb6b628e54289b87b9b7baeee621c7d22948dec", kill_on_drop: false }` [INFO] [stderr] Compiling nix v0.13.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking serde v1.0.197 [INFO] [stderr] Checking signal-hook v0.1.17 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking syswall v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `signal_hook` is imported redundantly [INFO] [stdout] --> src/child_process.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use signal_hook; [INFO] [stdout] | ^^^^^^^^^^^ the item `signal_hook` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `signal_hook` is imported redundantly [INFO] [stdout] --> src/child_process.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use signal_hook; [INFO] [stdout] | ^^^^^^^^^^^ the item `signal_hook` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/syscalls.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use libc; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/tracer_conf.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `libc` is imported redundantly [INFO] [stdout] --> src/syscalls.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use libc; [INFO] [stdout] | ^^^^ the item `libc` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `serde_json` is imported redundantly [INFO] [stdout] --> src/tracer_conf.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use serde_json; [INFO] [stdout] | ^^^^^^^^^^ the item `serde_json` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/child_process.rs:300:17 [INFO] [stdout] | [INFO] [stdout] 300 | let mut child = processes.0.get_mut(&pid).ok_or_else(|| format!( [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/child_process.rs:418:32 [INFO] [stdout] | [INFO] [stdout] 418 | } else if let Some(mut child) = processes.0.get_mut(&pid) { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/child_process.rs:300:17 [INFO] [stdout] | [INFO] [stdout] 300 | let mut child = processes.0.get_mut(&pid).ok_or_else(|| format!( [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/child_process.rs:418:32 [INFO] [stdout] | [INFO] [stdout] 418 | } else if let Some(mut child) = processes.0.get_mut(&pid) { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.42s [INFO] running `Command { std: "docker" "inspect" "a3d91f395dec339942c578883eb6b628e54289b87b9b7baeee621c7d22948dec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3d91f395dec339942c578883eb6b628e54289b87b9b7baeee621c7d22948dec", kill_on_drop: false }` [INFO] [stdout] a3d91f395dec339942c578883eb6b628e54289b87b9b7baeee621c7d22948dec