[INFO] crate crates-mirror 0.2.1 is already in cache
[INFO] extracting crate crates-mirror 0.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/crates-mirror/0.2.1
[INFO] extracting crate crates-mirror 0.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/crates-mirror/0.2.1
[INFO] validating manifest of crates-mirror-0.2.1 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of crates-mirror-0.2.1 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing crates-mirror-0.2.1
[INFO] finished frobbing crates-mirror-0.2.1
[INFO] frobbed toml for crates-mirror-0.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/crates-mirror/0.2.1/Cargo.toml
[INFO] started frobbing crates-mirror-0.2.1
[INFO] finished frobbing crates-mirror-0.2.1
[INFO] frobbed toml for crates-mirror-0.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/crates-mirror/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing crates-mirror-0.2.1 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/crates-mirror/0.2.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 23d852c1f9f8c2954df63f3b17472306eb693c12301fcb36b5e483c655e986f7
[INFO] running `"docker" "start" "-a" "23d852c1f9f8c2954df63f3b17472306eb693c12301fcb36b5e483c655e986f7"`
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling byte-tools v0.1.3
[INFO] [stderr]    Compiling route-recognizer v0.1.13
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling cookie v0.2.5
[INFO] [stderr]    Compiling curl v0.4.22
[INFO] [stderr]    Compiling generic-array v0.5.1
[INFO] [stderr]    Compiling hyper v0.9.18
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling digest-buffer v0.1.2
[INFO] [stderr]    Compiling digest v0.2.1
[INFO] [stderr]    Compiling sha2 v0.2.0
[INFO] [stderr]    Compiling iron v0.4.0
[INFO] [stderr]    Compiling router v0.4.0
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling crates-mirror v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `File` is imported redundantly
[INFO] [stderr]   --> src/main.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::fs::{create_dir_all, File};
[INFO] [stderr]    |                               ---- the item `File` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 70 |         use std::fs::File;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Read` is imported redundantly
[INFO] [stderr]   --> src/main.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 26 | use std::io::{BufWriter, Write, Read, BufReader, BufRead};
[INFO] [stderr]    |                                 ---- the item `Read` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 71 |         use std::io::Read;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.89s
[INFO] running `"docker" "inspect" "23d852c1f9f8c2954df63f3b17472306eb693c12301fcb36b5e483c655e986f7"`
[INFO] running `"docker" "rm" "-f" "23d852c1f9f8c2954df63f3b17472306eb693c12301fcb36b5e483c655e986f7"`
[INFO] [stdout] 23d852c1f9f8c2954df63f3b17472306eb693c12301fcb36b5e483c655e986f7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/crates-mirror/0.2.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0529ee81b05f2039d582b473e0bb5624a9c4f088aa83e0fadcf3e20c92a5a691
[INFO] running `"docker" "start" "-a" "0529ee81b05f2039d582b473e0bb5624a9c4f088aa83e0fadcf3e20c92a5a691"`
[INFO] [stderr]    Compiling crates-mirror v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `File` is imported redundantly
[INFO] [stderr]   --> src/main.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::fs::{create_dir_all, File};
[INFO] [stderr]    |                               ---- the item `File` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 70 |         use std::fs::File;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Read` is imported redundantly
[INFO] [stderr]   --> src/main.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 26 | use std::io::{BufWriter, Write, Read, BufReader, BufRead};
[INFO] [stderr]    |                                 ---- the item `Read` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 71 |         use std::io::Read;
[INFO] [stderr]    |             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "0529ee81b05f2039d582b473e0bb5624a9c4f088aa83e0fadcf3e20c92a5a691"`
[INFO] running `"docker" "rm" "-f" "0529ee81b05f2039d582b473e0bb5624a9c4f088aa83e0fadcf3e20c92a5a691"`
[INFO] [stdout] 0529ee81b05f2039d582b473e0bb5624a9c4f088aa83e0fadcf3e20c92a5a691
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/crates-mirror/0.2.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 7dedb7a47b5683d5ea46b741f7d668e9431c8081b2ff3612b1735cefdaf92c49
[INFO] running `"docker" "start" "-a" "7dedb7a47b5683d5ea46b741f7d668e9431c8081b2ff3612b1735cefdaf92c49"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/crates_mirror-cecddcefacc81975
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7dedb7a47b5683d5ea46b741f7d668e9431c8081b2ff3612b1735cefdaf92c49"`
[INFO] running `"docker" "rm" "-f" "7dedb7a47b5683d5ea46b741f7d668e9431c8081b2ff3612b1735cefdaf92c49"`
[INFO] [stdout] 7dedb7a47b5683d5ea46b741f7d668e9431c8081b2ff3612b1735cefdaf92c49