[INFO] updating cached repository https://github.com/alphalpha/librarian
[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] 3168cc79609275cf6b0ac99d306ab900133a04c5
[INFO] testing alphalpha/librarian against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falphalpha%2Flibrarian" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alphalpha/librarian on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alphalpha/librarian
[INFO] finished tweaking git repo https://github.com/alphalpha/librarian
[INFO] tweaked toml for git repo https://github.com/alphalpha/librarian written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/alphalpha/librarian already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] d0d0360eae4e23a0c843f475e35496e7983a8fb324eb55cd1c007c2f94f339a3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d0d0360eae4e23a0c843f475e35496e7983a8fb324eb55cd1c007c2f94f339a3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v0.15.43
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling cc v1.0.38
[INFO] [stderr]    Compiling derive_builder v0.7.2
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling flate2 v1.0.9
[INFO] [stderr]    Compiling darling_core v0.9.0
[INFO] [stderr]    Compiling darling_macro v0.9.0
[INFO] [stderr]    Compiling darling v0.9.0
[INFO] [stderr]    Compiling derive_builder_core v0.5.0
[INFO] [stderr]    Compiling id3 v0.3.0
[INFO] [stderr]    Compiling librarian v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]  --> src/error.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, io, str};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tag`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tag = Tag::read_from_path(source).map_err(Error::from)?;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]  --> src/lib.rs:8:45
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn tags_to_file_system(source: PathBuf, target: PathBuf) -> Result<(), Error> {
[INFO] [stderr]   |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.06s
[INFO] running `"docker" "inspect" "d0d0360eae4e23a0c843f475e35496e7983a8fb324eb55cd1c007c2f94f339a3"`
[INFO] running `"docker" "rm" "-f" "d0d0360eae4e23a0c843f475e35496e7983a8fb324eb55cd1c007c2f94f339a3"`
[INFO] [stdout] d0d0360eae4e23a0c843f475e35496e7983a8fb324eb55cd1c007c2f94f339a3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e5b785ad7289ad1c79e1fe215d162899b9d0dd276f4429500fc994ebd345012c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e5b785ad7289ad1c79e1fe215d162899b9d0dd276f4429500fc994ebd345012c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling librarian v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]  --> src/error.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, io, str};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tag`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tag = Tag::read_from_path(source).map_err(Error::from)?;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]  --> src/lib.rs:8:45
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn tags_to_file_system(source: PathBuf, target: PathBuf) -> Result<(), Error> {
[INFO] [stderr]   |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]  --> src/error.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, io, str};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tag`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tag = Tag::read_from_path(source).map_err(Error::from)?;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]  --> src/lib.rs:8:45
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn tags_to_file_system(source: PathBuf, target: PathBuf) -> Result<(), Error> {
[INFO] [stderr]   |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "e5b785ad7289ad1c79e1fe215d162899b9d0dd276f4429500fc994ebd345012c"`
[INFO] running `"docker" "rm" "-f" "e5b785ad7289ad1c79e1fe215d162899b9d0dd276f4429500fc994ebd345012c"`
[INFO] [stdout] e5b785ad7289ad1c79e1fe215d162899b9d0dd276f4429500fc994ebd345012c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f536f417fd4c1a813f2874cdd695ec8420b6f33fbfe2b81ea1694d0290472688
[INFO] running `"docker" "start" "-a" "f536f417fd4c1a813f2874cdd695ec8420b6f33fbfe2b81ea1694d0290472688"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]  --> src/error.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, io, str};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tag`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tag = Tag::read_from_path(source).map_err(Error::from)?;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]  --> src/lib.rs:8:45
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn tags_to_file_system(source: PathBuf, target: PathBuf) -> Result<(), Error> {
[INFO] [stderr]   |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `str`
[INFO] [stderr]  --> src/error.rs:2:20
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fmt, io, str};
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tag`
[INFO] [stderr]  --> src/lib.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let tag = Tag::read_from_path(source).map_err(Error::from)?;
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_tag`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]  --> src/lib.rs:8:45
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn tags_to_file_system(source: PathBuf, target: PathBuf) -> Result<(), Error> {
[INFO] [stderr]   |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/librarian-0a1722ab5cc5ec41
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/librarian-efa1fec58bd1bca3
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests librarian
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "f536f417fd4c1a813f2874cdd695ec8420b6f33fbfe2b81ea1694d0290472688"`
[INFO] running `"docker" "rm" "-f" "f536f417fd4c1a813f2874cdd695ec8420b6f33fbfe2b81ea1694d0290472688"`
[INFO] [stdout] f536f417fd4c1a813f2874cdd695ec8420b6f33fbfe2b81ea1694d0290472688