[INFO] updating cached repository NickeZ/imapfetch
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/NickeZ/imapfetch
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/NickeZ/imapfetch" "work/ex/beta-1.38-1/sources/1.37.0/gh/NickeZ/imapfetch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/NickeZ/imapfetch'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/NickeZ/imapfetch" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NickeZ/imapfetch"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NickeZ/imapfetch'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b76209806035f88fb5661ad5db99202e108525c7
[INFO] sha for GitHub repo NickeZ/imapfetch: b76209806035f88fb5661ad5db99202e108525c7
[INFO] validating manifest of NickeZ/imapfetch 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 NickeZ/imapfetch 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 NickeZ/imapfetch
[INFO] removed path dependency imap from NickeZ/imapfetch
[INFO] finished frobbing NickeZ/imapfetch
[INFO] frobbed toml for NickeZ/imapfetch written to work/ex/beta-1.38-1/sources/1.37.0/gh/NickeZ/imapfetch/Cargo.toml
[INFO] started frobbing NickeZ/imapfetch
[INFO] removed path dependency imap from NickeZ/imapfetch
[INFO] finished frobbing NickeZ/imapfetch
[INFO] frobbed toml for NickeZ/imapfetch written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NickeZ/imapfetch/Cargo.toml
[INFO] crate NickeZ/imapfetch already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/NickeZ/imapfetch/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing NickeZ/imapfetch 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-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NickeZ/imapfetch:/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] 8b055a72547e020a9bad5fcec4919907829e14646e693f751f0dfd759e900bc7
[INFO] running `"docker" "start" "-a" "8b055a72547e020a9bad5fcec4919907829e14646e693f751f0dfd759e900bc7"`
[INFO] [stderr]    Compiling buf-read-ext v0.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling rpassword v3.0.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling number_prefix v0.2.8
[INFO] [stderr]    Compiling imap-proto v0.7.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling email-format v0.7.0
[INFO] [stderr]    Compiling chrono v0.4.7
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling console v0.7.7
[INFO] [stderr]    Compiling imap v1.0.2
[INFO] [stderr]    Compiling indicatif v0.11.0
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling imapfetch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/parser.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `buf`
[INFO] [stderr]   --> src/file.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     buf: &'a [u8],
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/main.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/main.rs:262:21
[INFO] [stderr]     |
[INFO] [stderr] 262 |                 let line = if let Some(e) = message.envelope() {
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotATTY`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         NotATTY,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.79s
[INFO] running `"docker" "inspect" "8b055a72547e020a9bad5fcec4919907829e14646e693f751f0dfd759e900bc7"`
[INFO] running `"docker" "rm" "-f" "8b055a72547e020a9bad5fcec4919907829e14646e693f751f0dfd759e900bc7"`
[INFO] [stdout] 8b055a72547e020a9bad5fcec4919907829e14646e693f751f0dfd759e900bc7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/NickeZ/imapfetch:/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] 2231bc56bad67cda87be6b16d2cc5ca024c6770c289b40831d11766c44e73daf
[INFO] running `"docker" "start" "-a" "2231bc56bad67cda87be6b16d2cc5ca024c6770c289b40831d11766c44e73daf"`
[INFO] [stderr]    Compiling imapfetch v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::prelude::*`
[INFO] [stderr]  --> src/parser.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/file.rs:90:40
[INFO] [stderr]    |
[INFO] [stderr] 90 |         let mbox = Mboxfile::from_file("test/example1.mbox").expect("File not found");
[INFO] [stderr]    |                                        ^^^^^^^^^^^^^^^^^^^^ expected struct `std::path::Path`, found str
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected type `&std::path::Path`
[INFO] [stderr]               found type `&'static str`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `imapfetch`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Path`
[INFO] [stderr]  --> src/main.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::path::{Path, PathBuf};
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]    --> src/main.rs:262:21
[INFO] [stderr]     |
[INFO] [stderr] 262 |                 let line = if let Some(e) = message.envelope() {
[INFO] [stderr]     |                     ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NotATTY`
[INFO] [stderr]   --> src/main.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         NotATTY,
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2231bc56bad67cda87be6b16d2cc5ca024c6770c289b40831d11766c44e73daf"`
[INFO] running `"docker" "rm" "-f" "2231bc56bad67cda87be6b16d2cc5ca024c6770c289b40831d11766c44e73daf"`
[INFO] [stdout] 2231bc56bad67cda87be6b16d2cc5ca024c6770c289b40831d11766c44e73daf