[INFO] fetching crate linux-perf-file-reader 0.2.0...
[INFO] checking linux-perf-file-reader-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate linux-perf-file-reader 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate linux-perf-file-reader 0.2.0 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 linux-perf-file-reader 0.2.0
[INFO] finished tweaking crates.io crate linux-perf-file-reader 0.2.0
[INFO] tweaked toml for crates.io crate linux-perf-file-reader 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate linux-perf-file-reader 0.2.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace v0.3.46
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded backtrace-sys v0.1.35
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46f6f7bc12cc8238df82612fc05742bc107c6094df731b2b90a6c4505f8f22f2
[INFO] running `Command { std: "docker" "start" "-a" "46f6f7bc12cc8238df82612fc05742bc107c6094df731b2b90a6c4505f8f22f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46f6f7bc12cc8238df82612fc05742bc107c6094df731b2b90a6c4505f8f22f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f6f7bc12cc8238df82612fc05742bc107c6094df731b2b90a6c4505f8f22f2", kill_on_drop: false }`
[INFO] [stdout] 46f6f7bc12cc8238df82612fc05742bc107c6094df731b2b90a6c4505f8f22f2
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 740ac1cc48097a2191f1d8ec67182480391d6e667df7bc9b34ae74fe0a4b9021
[INFO] running `Command { std: "docker" "start" "-a" "740ac1cc48097a2191f1d8ec67182480391d6e667df7bc9b34ae74fe0a4b9021", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking linux-perf-file-reader v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `read_raw` is imported redundantly
[INFO] [stdout]  --> src/event_reader.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tools::{collect_n, read_raw, read_string};
[INFO] [stdout]   |                               ^^^^^^^^
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     -------- the item `read_raw` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Seek` is imported redundantly
[INFO] [stdout]  --> src/event_reader.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     -------- the item `Seek` is already imported here
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout] 4 | use std::io::{Read, Seek};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `read_raw` is imported redundantly
[INFO] [stdout]  --> src/info_reader.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `read_raw` is already imported here
[INFO] [stdout] 2 | use header::*;
[INFO] [stdout] 3 | use tools::{collect_n, read_raw, read_string};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `read_raw` is imported redundantly
[INFO] [stdout]  --> src/event_reader.rs:1:31
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tools::{collect_n, read_raw, read_string};
[INFO] [stdout]   |                               ^^^^^^^^
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     -------- the item `read_raw` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Seek` is imported redundantly
[INFO] [stdout]  --> src/event_reader.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::*;
[INFO] [stdout]   |     -------- the item `Seek` is already imported here
[INFO] [stdout] 3 | use std::collections::HashMap;
[INFO] [stdout] 4 | use std::io::{Read, Seek};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `read_raw` is imported redundantly
[INFO] [stdout]  --> src/info_reader.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::*;
[INFO] [stdout]   |     -------- the item `read_raw` is already imported here
[INFO] [stdout] 2 | use header::*;
[INFO] [stdout] 3 | use tools::{collect_n, read_raw, read_string};
[INFO] [stdout]   |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.98s
[INFO] running `Command { std: "docker" "inspect" "740ac1cc48097a2191f1d8ec67182480391d6e667df7bc9b34ae74fe0a4b9021", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "740ac1cc48097a2191f1d8ec67182480391d6e667df7bc9b34ae74fe0a4b9021", kill_on_drop: false }`
[INFO] [stdout] 740ac1cc48097a2191f1d8ec67182480391d6e667df7bc9b34ae74fe0a4b9021