[INFO] crate firetrap 0.1.0 is already in cache
[INFO] extracting crate firetrap 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/firetrap/0.1.0
[INFO] extracting crate firetrap 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/firetrap/0.1.0
[INFO] validating manifest of firetrap-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of firetrap-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing firetrap-0.1.0
[INFO] finished frobbing firetrap-0.1.0
[INFO] frobbed toml for firetrap-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/firetrap/0.1.0/Cargo.toml
[INFO] started frobbing firetrap-0.1.0
[INFO] finished frobbing firetrap-0.1.0
[INFO] frobbed toml for firetrap-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/firetrap/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing firetrap-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/firetrap/0.1.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 2e098917298da09a441f6946dd17062b308270eecfbab5fb57e783981673c565
[INFO] running `"docker" "start" "-a" "2e098917298da09a441f6946dd17062b308270eecfbab5fb57e783981673c565"`
[INFO] [stderr]    Compiling std_prelude v0.2.12
[INFO] [stderr]    Compiling stfu8 v0.2.4
[INFO] [stderr]    Compiling path_abs v0.4.1
[INFO] [stderr]    Compiling firetrap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[macro_use] extern crate failure_derive;
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/server.rs:845:33
[INFO] [stderr]     |
[INFO] [stderr] 845 |                             let mut session = session.lock()?;
[INFO] [stderr]     |                                 ----^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/server.rs:875:33
[INFO] [stderr]     |
[INFO] [stderr] 875 |                             let mut session = session.lock()?;
[INFO] [stderr]     |                                 ----^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `"docker" "inspect" "2e098917298da09a441f6946dd17062b308270eecfbab5fb57e783981673c565"`
[INFO] running `"docker" "rm" "-f" "2e098917298da09a441f6946dd17062b308270eecfbab5fb57e783981673c565"`
[INFO] [stdout] 2e098917298da09a441f6946dd17062b308270eecfbab5fb57e783981673c565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/firetrap/0.1.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c8151faba5e2f0d4f272088c844e5958f2fd8a3f628d1beb0c5066e807a3b7e0
[INFO] running `"docker" "start" "-a" "c8151faba5e2f0d4f272088c844e5958f2fd8a3f628d1beb0c5066e807a3b7e0"`
[INFO] [stderr]    Compiling pretty_env_logger v0.2.5
[INFO] [stderr]    Compiling ftp v3.0.1
[INFO] [stderr]    Compiling firetrap v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0432]: unresolved import `firetrap::auth::pam`
[INFO] [stderr]  --> examples/pam.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use firetrap::auth::pam;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^ no `pam` in `auth`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | #[macro_use] extern crate failure_derive;
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `firetrap`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/server.rs:845:33
[INFO] [stderr]     |
[INFO] [stderr] 845 |                             let mut session = session.lock()?;
[INFO] [stderr]     |                                 ----^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/server.rs:875:33
[INFO] [stderr]     |
[INFO] [stderr] 875 |                             let mut session = session.lock()?;
[INFO] [stderr]     |                                 ----^^^^^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c8151faba5e2f0d4f272088c844e5958f2fd8a3f628d1beb0c5066e807a3b7e0"`
[INFO] running `"docker" "rm" "-f" "c8151faba5e2f0d4f272088c844e5958f2fd8a3f628d1beb0c5066e807a3b7e0"`
[INFO] [stdout] c8151faba5e2f0d4f272088c844e5958f2fd8a3f628d1beb0c5066e807a3b7e0