[INFO] fetching crate in-toto 0.3.1...
[INFO] checking in-toto-0.3.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate in-toto 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate in-toto 0.3.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate in-toto 0.3.1
[INFO] finished tweaking crates.io crate in-toto 0.3.1
[INFO] tweaked toml for crates.io crate in-toto 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate in-toto 0.3.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded path-matchers v1.0.2
[INFO] [stderr]   Downloaded derp v0.0.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0416313d97289f39d08bd4851d99a277316d7c48c296f3f70e00720765956766
[INFO] running `Command { std: "docker" "start" "-a" "0416313d97289f39d08bd4851d99a277316d7c48c296f3f70e00720765956766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0416313d97289f39d08bd4851d99a277316d7c48c296f3f70e00720765956766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0416313d97289f39d08bd4851d99a277316d7c48c296f3f70e00720765956766", kill_on_drop: false }`
[INFO] [stdout] 0416313d97289f39d08bd4851d99a277316d7c48c296f3f70e00720765956766
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 788386b1885005bfe52c40d51aebb0d401a97c0ebf55f752db48aafe6810a1fa
[INFO] running `Command { std: "docker" "start" "-a" "788386b1885005bfe52c40d51aebb0d401a97c0ebf55f752db48aafe6810a1fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.23
[INFO] [stderr]    Compiling rstest_macros v0.17.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking path-matchers v1.0.2
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking pem v2.0.1
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking derp v0.0.14
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking path-clean v1.0.1
[INFO] [stderr]     Checking pretty_assertions v1.3.0
[INFO] [stderr]     Checking serde_json v1.0.79
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking assert-json-diff v2.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking rstest v0.17.0
[INFO] [stderr]     Checking in-toto v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `derp` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use derp::{self, Der, Tag};
[INFO] [stdout]   |            ^^^^ the item `derp` 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 `TimeZone` is imported redundantly
[INFO] [stdout]  --> src/models/layout/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `TimeZone` is already imported here
[INFO] [stdout] 6 | use chrono::TimeZone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DateTime` is imported redundantly
[INFO] [stdout]  --> src/models/layout/mod.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `DateTime` is already imported here
[INFO] [stdout] 6 | use chrono::TimeZone;
[INFO] [stdout] 7 | use chrono::{DateTime, Utc};
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Utc` is imported redundantly
[INFO] [stdout]  --> src/models/layout/mod.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `Utc` is already imported here
[INFO] [stdout] 6 | use chrono::TimeZone;
[INFO] [stdout] 7 | use chrono::{DateTime, Utc};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/models/mod.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | mod metadata;
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `metadata` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/models/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use layout::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/models/mod.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | mod metadata;
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/format_hex.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]   |             ^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/format_hex.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `derp` is imported redundantly
[INFO] [stdout]  --> src/crypto.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | use derp::{self, Der, Tag};
[INFO] [stdout]   |            ^^^^ the item `derp` 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 `serde_json` is imported redundantly
[INFO] [stdout]     --> src/crypto.rs:1159:22
[INFO] [stdout]      |
[INFO] [stdout] 1159 |     use serde_json::{self, json};
[INFO] [stdout]      |                      ^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TimeZone` is imported redundantly
[INFO] [stdout]  --> src/models/layout/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `TimeZone` is already imported here
[INFO] [stdout] 6 | use chrono::TimeZone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DateTime` is imported redundantly
[INFO] [stdout]  --> src/models/layout/mod.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `DateTime` is already imported here
[INFO] [stdout] 6 | use chrono::TimeZone;
[INFO] [stdout] 7 | use chrono::{DateTime, Utc};
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Utc` is imported redundantly
[INFO] [stdout]  --> src/models/layout/mod.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 5 | use chrono::prelude::*;
[INFO] [stdout]   |     ------------------ the item `Utc` is already imported here
[INFO] [stdout] 6 | use chrono::TimeZone;
[INFO] [stdout] 7 | use chrono::{DateTime, Utc};
[INFO] [stdout]   |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/models/mod.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | mod metadata;
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `metadata` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/models/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use layout::*;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/models/mod.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | mod metadata;
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde` is imported redundantly
[INFO] [stdout]  --> src/format_hex.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use serde::{self, Deserialize, Deserializer, Serializer};
[INFO] [stdout]   |             ^^^^ the item `serde` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]  --> src/format_hex.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::result::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:134:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Result` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> examples/write_link.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_hash` is never used
[INFO] [stdout]   --> src/crypto.rs:85:15
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub(crate) fn calculate_hash(data: &[u8], hash_alg: HashAlgorithm) -> HashValue {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "788386b1885005bfe52c40d51aebb0d401a97c0ebf55f752db48aafe6810a1fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "788386b1885005bfe52c40d51aebb0d401a97c0ebf55f752db48aafe6810a1fa", kill_on_drop: false }`
[INFO] [stdout] 788386b1885005bfe52c40d51aebb0d401a97c0ebf55f752db48aafe6810a1fa