[INFO] fetching crate evcxr 0.16.0...
[INFO] checking evcxr-0.16.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate evcxr 0.16.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate evcxr 0.16.0 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 evcxr 0.16.0
[INFO] finished tweaking crates.io crate evcxr 0.16.0
[INFO] tweaked toml for crates.io crate evcxr 0.16.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate evcxr 0.16.0 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 ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 216a2bf3d7c4ac3ff4d57aba55617f44d734e9a23d038f144e0081a384c8d51b
[INFO] running `Command { std: "docker" "start" "-a" "216a2bf3d7c4ac3ff4d57aba55617f44d734e9a23d038f144e0081a384c8d51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "216a2bf3d7c4ac3ff4d57aba55617f44d734e9a23d038f144e0081a384c8d51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216a2bf3d7c4ac3ff4d57aba55617f44d734e9a23d038f144e0081a384c8d51b", kill_on_drop: false }`
[INFO] [stdout] 216a2bf3d7c4ac3ff4d57aba55617f44d734e9a23d038f144e0081a384c8d51b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 0e88cc910fdcc0946b087dfd572911ed4c42459c69c8f1baca4119f4f05aee15
[INFO] running `Command { std: "docker" "start" "-a" "0e88cc910fdcc0946b087dfd572911ed4c42459c69c8f1baca4119f4f05aee15", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.11.0
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[INFO] [stderr]     Checking evcxr_input v1.0.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]    Compiling backtrace v0.3.69
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[INFO] [stderr]    Compiling evcxr v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.8.0
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]    Compiling salsa-macros v0.17.0-pre.2
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[INFO] [stderr]     Checking salsa v0.17.0-pre.2
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
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[INFO] [stderr]     Checking ra-ap-rustc_abi v0.14.0
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[INFO] [stderr]     Checking ra_ap_syntax v0.0.181
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[INFO] [stderr]     Checking cargo_metadata v0.15.4
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[INFO] [stderr]     Checking ra_ap_mbe v0.0.181
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[INFO] [stderr]     Checking ra_ap_hir_def v0.0.181
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[INFO] [stdout] warning: the item `json` is imported redundantly
[INFO] [stdout]   --> src/cargo_metadata.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | use json::{self};
[INFO] [stdout]    |            ^^^^ the item `json` 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 `std` is imported redundantly
[INFO] [stdout]   --> src/runtime.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{self};
[INFO] [stdout]    |           ^^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/rust_analyzer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use std::convert::TryFrom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `json` is imported redundantly
[INFO] [stdout]   --> src/cargo_metadata.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | use json::{self};
[INFO] [stdout]    |            ^^^^ the item `json` 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 `Config` is imported redundantly
[INFO] [stdout]    --> src/cargo_metadata.rs:176:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     use super::*;
[INFO] [stdout]     |         -------- the item `Config` is already imported here
[INFO] [stdout] 176 |     use crate::eval_context::Config;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Result` is imported redundantly
[INFO] [stdout]    --> src/cargo_metadata.rs:177:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |     use super::*;
[INFO] [stdout]     |         -------- the item `Result` is already imported here
[INFO] [stdout] 176 |     use crate::eval_context::Config;
[INFO] [stdout] 177 |     use anyhow::Result;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]   --> src/runtime.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | use std::{self};
[INFO] [stdout]    |           ^^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]   --> src/rust_analyzer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | use std::convert::TryFrom;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 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 1m 00s
[INFO] running `Command { std: "docker" "inspect" "0e88cc910fdcc0946b087dfd572911ed4c42459c69c8f1baca4119f4f05aee15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e88cc910fdcc0946b087dfd572911ed4c42459c69c8f1baca4119f4f05aee15", kill_on_drop: false }`
[INFO] [stdout] 0e88cc910fdcc0946b087dfd572911ed4c42459c69c8f1baca4119f4f05aee15