[INFO] updating cached repository https://github.com/aliaksandr-master/rust-common
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bb25f5deb3fac3b76340598d121f06168fec28d2
[INFO] checking aliaksandr-master/rust-common against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faliaksandr-master%2Frust-common" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aliaksandr-master/rust-common on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/aliaksandr-master/rust-common
[INFO] finished tweaking git repo https://github.com/aliaksandr-master/rust-common
[INFO] tweaked toml for git repo https://github.com/aliaksandr-master/rust-common written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/aliaksandr-master/rust-common already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dab8294b5df4dcbde327de0e7126906fbe479f52fbba4904972f1fa7e5562a47
[INFO] running `"docker" "start" "-a" "dab8294b5df4dcbde327de0e7126906fbe479f52fbba4904972f1fa7e5562a47"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking memchr v2.1.1
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking csv v1.0.2
[INFO] [stderr]     Checking rust_common v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0412]: cannot find type `Err` in module `io`
[INFO] [stderr]  --> src/aitline/mod.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     IOErr(io::Err),
[INFO] [stderr]   |               ^^^ not found in `io`
[INFO] [stderr]   |
[INFO] [stderr] help: there is an enum variant `std::prelude::v1::Err` and 1 other; try using the variant's enum
[INFO] [stderr]   |
[INFO] [stderr] 7 |     IOErr(std::result::Result),
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `passengers_file_path` in this scope
[INFO] [stderr]   --> src/main.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     passengers_file_path = cwd.join("data").join("airline_passengers.csv");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `passengers_file_path` in this scope
[INFO] [stderr]   --> src/main.rs:60:36
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let passgers = load_passengers(passengers_file_path);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `Err` in module `io`
[INFO] [stderr]  --> src/aitline/mod.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 |     IOErr(io::Err),
[INFO] [stderr]   |               ^^^ not found in `io`
[INFO] [stderr]   |
[INFO] [stderr] help: there is an enum variant `std::prelude::v1::Err` and 1 other; try using the variant's enum
[INFO] [stderr]   |
[INFO] [stderr] 7 |     IOErr(std::result::Result),
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `passengers_file_path` in this scope
[INFO] [stderr]   --> src/main.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |     passengers_file_path = cwd.join("data").join("airline_passengers.csv");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `passengers_file_path` in this scope
[INFO] [stderr]   --> src/main.rs:60:36
[INFO] [stderr]    |
[INFO] [stderr] 60 |     let passgers = load_passengers(passengers_file_path);
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::path::PathBuf`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::path::PathBuf;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/aitline/mod.rs:31:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |       pub fn from_csv_record (rec: &csv::StringRecord) -> Result<Self, <i32 as FromStr>::Err> {
[INFO] [stderr]    |                                                           ----------------------------------- expected `std::result::Result<aitline::MonthPassengerStat, std::num::ParseIntError>` because of return type
[INFO] [stderr] 31 |           return MonthPassengerStat{
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 32 | |             month_name: rec[0].into(),
[INFO] [stderr] 33 | |             passengers_count: i32::from_str(&rec[1])?
[INFO] [stderr] 34 | |         };
[INFO] [stderr]    | |_________^ expected enum `std::result::Result`, found struct `aitline::MonthPassengerStat`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected enum `std::result::Result<aitline::MonthPassengerStat, std::num::ParseIntError>`
[INFO] [stderr]             found struct `aitline::MonthPassengerStat`
[INFO] [stderr] help: try using a variant of the expected enum
[INFO] [stderr]    |
[INFO] [stderr] 31 |         return Ok(MonthPassengerStat{
[INFO] [stderr] 32 |             month_name: rec[0].into(),
[INFO] [stderr] 33 |             passengers_count: i32::from_str(&rec[1])?
[INFO] [stderr] 34 |         });
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `?` couldn't convert the error to `aitline::LoadingErr`
[INFO] [stderr]   --> src/aitline/mod.rs:49:41
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let file = fs::File::open(file_path)?;
[INFO] [stderr]    |                                         ^ the trait `std::convert::From<std::io::Error>` is not implemented for `aitline::LoadingErr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stderr]    = note: required by `std::convert::From::from`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/aitline/mod.rs:71:56
[INFO] [stderr]    |
[INFO] [stderr] 71 |         .map(|rec|MonthPassengerStat::from_csv_record(&rec?)?)
[INFO] [stderr]    |              ------------------------------------------^^^^--
[INFO] [stderr]    |              |                                         |
[INFO] [stderr]    |              |                                         cannot use the `?` operator in a closure that returns `aitline::MonthPassengerStat`
[INFO] [stderr]    |              this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `aitline::MonthPassengerStat`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/aitline/mod.rs:71:19
[INFO] [stderr]    |
[INFO] [stderr] 71 |         .map(|rec|MonthPassengerStat::from_csv_record(&rec?)?)
[INFO] [stderr]    |              -----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |              |    |
[INFO] [stderr]    |              |    cannot use the `?` operator in a closure that returns `aitline::MonthPassengerStat`
[INFO] [stderr]    |              this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `aitline::MonthPassengerStat`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0412, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `rust_common`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/aitline/mod.rs:31:16
[INFO] [stderr]    |
[INFO] [stderr] 30 |       pub fn from_csv_record (rec: &csv::StringRecord) -> Result<Self, <i32 as FromStr>::Err> {
[INFO] [stderr]    |                                                           ----------------------------------- expected `std::result::Result<aitline::MonthPassengerStat, std::num::ParseIntError>` because of return type
[INFO] [stderr] 31 |           return MonthPassengerStat{
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 32 | |             month_name: rec[0].into(),
[INFO] [stderr] 33 | |             passengers_count: i32::from_str(&rec[1])?
[INFO] [stderr] 34 | |         };
[INFO] [stderr]    | |_________^ expected enum `std::result::Result`, found struct `aitline::MonthPassengerStat`
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected enum `std::result::Result<aitline::MonthPassengerStat, std::num::ParseIntError>`
[INFO] [stderr]             found struct `aitline::MonthPassengerStat`
[INFO] [stderr] help: try using a variant of the expected enum
[INFO] [stderr]    |
[INFO] [stderr] 31 |         return Ok(MonthPassengerStat{
[INFO] [stderr] 32 |             month_name: rec[0].into(),
[INFO] [stderr] 33 |             passengers_count: i32::from_str(&rec[1])?
[INFO] [stderr] 34 |         });
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `?` couldn't convert the error to `aitline::LoadingErr`
[INFO] [stderr]   --> src/aitline/mod.rs:49:41
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let file = fs::File::open(file_path)?;
[INFO] [stderr]    |                                         ^ the trait `std::convert::From<std::io::Error>` is not implemented for `aitline::LoadingErr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stderr]    = note: required by `std::convert::From::from`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/aitline/mod.rs:71:56
[INFO] [stderr]    |
[INFO] [stderr] 71 |         .map(|rec|MonthPassengerStat::from_csv_record(&rec?)?)
[INFO] [stderr]    |              ------------------------------------------^^^^--
[INFO] [stderr]    |              |                                         |
[INFO] [stderr]    |              |                                         cannot use the `?` operator in a closure that returns `aitline::MonthPassengerStat`
[INFO] [stderr]    |              this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `aitline::MonthPassengerStat`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
[INFO] [stderr]   --> src/aitline/mod.rs:71:19
[INFO] [stderr]    |
[INFO] [stderr] 71 |         .map(|rec|MonthPassengerStat::from_csv_record(&rec?)?)
[INFO] [stderr]    |              -----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |              |    |
[INFO] [stderr]    |              |    cannot use the `?` operator in a closure that returns `aitline::MonthPassengerStat`
[INFO] [stderr]    |              this function should return `Result` or `Option` to accept `?`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Try` is not implemented for `aitline::MonthPassengerStat`
[INFO] [stderr]    = note: required by `std::ops::Try::from_error`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0412, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `rust_common`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dab8294b5df4dcbde327de0e7126906fbe479f52fbba4904972f1fa7e5562a47"`
[INFO] running `"docker" "rm" "-f" "dab8294b5df4dcbde327de0e7126906fbe479f52fbba4904972f1fa7e5562a47"`
[INFO] [stdout] dab8294b5df4dcbde327de0e7126906fbe479f52fbba4904972f1fa7e5562a47
