[INFO] fetching crate snoot 0.1.2... [INFO] checking snoot-0.1.2 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] extracting crate snoot 0.1.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate snoot 0.1.2 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate snoot 0.1.2 [INFO] finished tweaking crates.io crate snoot 0.1.2 [INFO] tweaked toml for crates.io crate snoot 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tendril v0.2.4 [INFO] [stderr] Downloaded utf-8 v0.6.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6a6519394ba67200702f047ddd3f14d3e759dc97b3c44bcf4a6e2583c7685987 [INFO] running `Command { std: "docker" "start" "-a" "6a6519394ba67200702f047ddd3f14d3e759dc97b3c44bcf4a6e2583c7685987", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6a6519394ba67200702f047ddd3f14d3e759dc97b3c44bcf4a6e2583c7685987", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6a6519394ba67200702f047ddd3f14d3e759dc97b3c44bcf4a6e2583c7685987", kill_on_drop: false }` [INFO] [stdout] 6a6519394ba67200702f047ddd3f14d3e759dc97b3c44bcf4a6e2583c7685987 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2047f0b48f984f34cd887010fe2abf152a411c090cca5e1320da5f8661e6349c [INFO] running `Command { std: "docker" "start" "-a" "2047f0b48f984f34cd887010fe2abf152a411c090cca5e1320da5f8661e6349c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Checking mac v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Checking new_debug_unreachable v1.0.4 [INFO] [stderr] Checking ucd-util v0.1.8 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking utf8-ranges v1.0.4 [INFO] [stderr] Checking serde v0.9.15 [INFO] [stderr] Checking futf v0.1.4 [INFO] [stderr] Checking utf-8 v0.6.0 [INFO] [stderr] Checking regex-syntax v0.5.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking itertools v0.5.10 [INFO] [stderr] Checking tendril v0.2.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking serde_json v0.9.10 [INFO] [stderr] Checking snoot v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/diagnostic/diagnostic_bag.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Ord` is imported redundantly [INFO] [stdout] --> src/diagnostic/diagnostic_bag.rs:37:13 [INFO] [stdout] | [INFO] [stdout] 37 | use std::cmp::Ord; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/serde_serialization/test.rs:139:21 [INFO] [stdout] | [INFO] [stdout] 139 | pub struct Bar{}; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/serde_serialization/mod.rs:300:29 [INFO] [stdout] | [INFO] [stdout] 300 | fn deserialize_tuple(mut self, len: usize, visitor: V) -> Result [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/serde_serialization/mod.rs:310:36 [INFO] [stdout] | [INFO] [stdout] 310 | fn deserialize_tuple_struct(mut self, [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/serde_serialization/mod.rs:357:30 [INFO] [stdout] | [INFO] [stdout] 357 | fn deserialize_struct(mut self, [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/serde_serialization/mod.rs:300:29 [INFO] [stdout] | [INFO] [stdout] 300 | fn deserialize_tuple(mut self, len: usize, visitor: V) -> Result [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/serde_serialization/mod.rs:310:36 [INFO] [stdout] | [INFO] [stdout] 310 | fn deserialize_tuple_struct(mut self, [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/serde_serialization/mod.rs:357:30 [INFO] [stdout] | [INFO] [stdout] 357 | fn deserialize_struct(mut self, [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 [unoptimized + debuginfo] target(s) in 20.32s [INFO] running `Command { std: "docker" "inspect" "2047f0b48f984f34cd887010fe2abf152a411c090cca5e1320da5f8661e6349c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2047f0b48f984f34cd887010fe2abf152a411c090cca5e1320da5f8661e6349c", kill_on_drop: false }` [INFO] [stdout] 2047f0b48f984f34cd887010fe2abf152a411c090cca5e1320da5f8661e6349c