[INFO] fetching crate midas 0.5.12... [INFO] checking midas-0.5.12 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate midas 0.5.12 into /workspace/builds/worker-1-tc1/source [INFO] validating manifest of crates.io crate midas 0.5.12 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 midas 0.5.12 [INFO] finished tweaking crates.io crate midas 0.5.12 [INFO] tweaked toml for crates.io crate midas 0.5.12 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate crates.io crate midas 0.5.12 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-serde v0.1.2 [INFO] [stderr] Downloaded tracing-log v0.1.2 [INFO] [stderr] Downloaded unicode-bidi v0.3.5 [INFO] [stderr] Downloaded tracing-core v0.1.19 [INFO] [stderr] Downloaded tracing-subscriber v0.2.20 [INFO] [stderr] Downloaded slab v0.4.3 [INFO] [stderr] Downloaded async-trait v0.1.50 [INFO] [stderr] Downloaded md-5 v0.9.1 [INFO] [stderr] Downloaded futures v0.3.14 [INFO] [stderr] Downloaded futures-util v0.3.14 [INFO] [stderr] Downloaded tokio v1.5.0 [INFO] [stderr] Downloaded libc v0.2.94 [INFO] [stderr] Downloaded regex v1.5.3 [INFO] [stderr] Downloaded syn v1.0.71 [INFO] [stderr] Downloaded postgres-protocol v0.6.1 [INFO] [stderr] Downloaded bytes v1.0.1 [INFO] [stderr] Downloaded mio v0.7.11 [INFO] [stderr] Downloaded tokio-util v0.6.6 [INFO] [stderr] Downloaded tokio-postgres v0.7.2 [INFO] [stderr] Downloaded rand v0.8.3 [INFO] [stderr] Downloaded typenum v1.13.0 [INFO] [stderr] Downloaded stringprep v0.1.2 [INFO] [stderr] Downloaded socket2 v0.4.0 [INFO] [stderr] Downloaded futures-core v0.3.14 [INFO] [stderr] Downloaded futures-sink v0.3.14 [INFO] [stderr] Downloaded postgres v0.19.1 [INFO] [stderr] Downloaded rand_core v0.6.2 [INFO] [stderr] Downloaded pin-project v1.0.8 [INFO] [stderr] Downloaded sharded-slab v0.1.3 [INFO] [stderr] Downloaded thread_local v1.1.3 [INFO] [stderr] Downloaded tracing-attributes v0.1.15 [INFO] [stderr] Downloaded tracing v0.1.26 [INFO] [stderr] Downloaded futures-executor v0.3.14 [INFO] [stderr] Downloaded futures-channel v0.3.14 [INFO] [stderr] Downloaded futures-io v0.3.14 [INFO] [stderr] Downloaded futures-macro v0.3.14 [INFO] [stderr] Downloaded futures-task v0.3.14 [INFO] [stderr] Downloaded instant v0.1.9 [INFO] [stderr] Downloaded siphasher v0.3.5 [INFO] [stderr] Downloaded subtle v2.4.0 [INFO] [stderr] Downloaded crypto-mac v0.10.0 [INFO] [stderr] Downloaded cpuid-bool v0.1.2 [INFO] [stderr] Downloaded postgres-types v0.2.1 [INFO] [stderr] Downloaded redox_syscall v0.2.7 [INFO] [stderr] Downloaded pin-project-internal v1.0.8 [INFO] [stderr] Downloaded pin-project-lite v0.2.6 [INFO] [stderr] Downloaded sha2 v0.9.3 [INFO] [stderr] Downloaded tinyvec v1.2.0 [INFO] [stderr] Downloaded unicode-normalization v0.1.17 [INFO] [stderr] Downloaded url v2.2.1 [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] 768e9ef6d9b7e69aa42a9e35ac0a7e698f6d7d2c48af762e741f473b24883df0 [INFO] running `Command { std: "docker" "start" "-a" "768e9ef6d9b7e69aa42a9e35ac0a7e698f6d7d2c48af762e741f473b24883df0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "768e9ef6d9b7e69aa42a9e35ac0a7e698f6d7d2c48af762e741f473b24883df0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "768e9ef6d9b7e69aa42a9e35ac0a7e698f6d7d2c48af762e741f473b24883df0", kill_on_drop: false }` [INFO] [stdout] 768e9ef6d9b7e69aa42a9e35ac0a7e698f6d7d2c48af762e741f473b24883df0 [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] 899fed549f499482f87e76bce0c83a7982f4bb5b858134ebe8d63d28ec1cac75 [INFO] running `Command { std: "docker" "start" "-a" "899fed549f499482f87e76bce0c83a7982f4bb5b858134ebe8d63d28ec1cac75", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.94 [INFO] [stderr] Compiling syn v1.0.71 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Checking tinyvec v1.2.0 [INFO] [stderr] Checking unicode-bidi v0.3.5 [INFO] [stderr] Checking futures-core v0.3.14 [INFO] [stderr] Checking futures-sink v0.3.14 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking bytes v1.0.1 [INFO] [stderr] Checking subtle v2.4.0 [INFO] [stderr] Checking futures-channel v0.3.14 [INFO] [stderr] Checking tracing-core v0.1.19 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling tokio v1.5.0 [INFO] [stderr] Checking futures-task v0.3.14 [INFO] [stderr] Checking unicode-normalization v0.1.17 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking cpuid-bool v0.1.2 [INFO] [stderr] Checking futures-io v0.3.14 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Checking slab v0.4.3 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking mio v0.7.11 [INFO] [stderr] Checking instant v0.1.9 [INFO] [stderr] Compiling async-trait v0.1.50 [INFO] [stderr] Checking siphasher v0.3.5 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking fallible-iterator v0.2.0 [INFO] [stderr] Checking phf_shared v0.8.0 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking crypto-mac v0.10.0 [INFO] [stderr] Checking md-5 v0.9.1 [INFO] [stderr] Checking hmac v0.10.1 [INFO] [stderr] Checking sha2 v0.9.3 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking stringprep v0.1.2 [INFO] [stderr] Compiling serde_json v1.0.67 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking phf v0.8.0 [INFO] [stderr] Checking postgres-protocol v0.6.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking socket2 v0.4.0 [INFO] [stderr] Checking postgres-types v0.2.1 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking regex v1.5.3 [INFO] [stderr] Checking idna v0.2.3 [INFO] [stderr] Checking form_urlencoded v1.0.1 [INFO] [stderr] Checking num-integer v0.1.44 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking sharded-slab v0.1.3 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking url v2.2.1 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking tokio-util v0.6.6 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Compiling futures-macro v0.3.14 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling pin-project-internal v1.0.8 [INFO] [stderr] Checking futures-util v0.3.14 [INFO] [stderr] Checking tracing v0.1.26 [INFO] [stderr] Checking pin-project v1.0.8 [INFO] [stderr] Checking tracing-subscriber v0.2.20 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking futures-executor v0.3.14 [INFO] [stderr] Checking futures v0.3.14 [INFO] [stderr] Checking tokio-postgres v0.7.2 [INFO] [stderr] Checking postgres v0.19.1 [INFO] [stderr] Checking midas v0.5.12 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/commander.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/commander.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/commander.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Iterator` is imported redundantly [INFO] [stdout] --> src/commander.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Iterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `filename` is never read [INFO] [stdout] --> src/lookup.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct MigrationFile { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub filename: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MigrationFile` 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: method `drop_migration_table` is never used [INFO] [stdout] --> src/sequel.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait SequelDriver { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 9 | fn drop_migration_table(&mut self) -> Result<(), Error>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `drop_migration_table` is never used [INFO] [stdout] --> src/sequel.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait SequelDriver { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 9 | fn drop_migration_table(&mut self) -> Result<(), Error>; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `filename` is never read [INFO] [stdout] --> src/lookup.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 14 | pub struct MigrationFile { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub filename: String, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `MigrationFile` 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: method `drop_migration_table` is never used [INFO] [stdout] --> src/sequel.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait SequelDriver { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 9 | fn drop_migration_table(&mut self) -> Result<(), Error>; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `drop_migration_table` is never used [INFO] [stdout] --> src/sequel.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 6 | pub trait SequelDriver { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] ... [INFO] [stdout] 9 | fn drop_migration_table(&mut self) -> Result<(), Error>; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.40s [INFO] running `Command { std: "docker" "inspect" "899fed549f499482f87e76bce0c83a7982f4bb5b858134ebe8d63d28ec1cac75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "899fed549f499482f87e76bce0c83a7982f4bb5b858134ebe8d63d28ec1cac75", kill_on_drop: false }` [INFO] [stdout] 899fed549f499482f87e76bce0c83a7982f4bb5b858134ebe8d63d28ec1cac75