[INFO] updating cached repository mraof/Simumech
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mraof/Simumech
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mraof/Simumech" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/mraof/Simumech"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/mraof/Simumech'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mraof/Simumech" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/mraof/Simumech"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/mraof/Simumech'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0511065a99433e05e7c776660fec23d96d5a7e37
[INFO] sha for GitHub repo mraof/Simumech: 0511065a99433e05e7c776660fec23d96d5a7e37
[INFO] validating manifest of mraof/Simumech on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mraof/Simumech on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mraof/Simumech
[INFO] removed path dependency tumblr from mraof/Simumech
[INFO] finished frobbing mraof/Simumech
[INFO] frobbed toml for mraof/Simumech written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/mraof/Simumech/Cargo.toml
[INFO] started frobbing mraof/Simumech
[INFO] removed path dependency tumblr from mraof/Simumech
[INFO] finished frobbing mraof/Simumech
[INFO] frobbed toml for mraof/Simumech written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/mraof/Simumech/Cargo.toml
[INFO] crate mraof/Simumech already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/mraof/Simumech/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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/discord-rs`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/morbitgen`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/tcpgen`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/rust-websocket`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/discord-rs`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/morbitgen`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/tcpgen`
[INFO] [stderr]     Updating git repository `https://github.com/mraof/rust-websocket`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mraof/Simumech against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-1/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/mraof/Simumech:/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=forbid" "-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" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 9b893a3a2eab531263bc4b598df09bf0e5532ca6ba6eb871281e3b8157c5f97a
[INFO] running `"docker" "start" "-a" "9b893a3a2eab531263bc4b598df09bf0e5532ca6ba6eb871281e3b8157c5f97a"`
[INFO] [stderr] warning: dependency (tumblr) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.4
[INFO] [stderr]    Compiling base-x v0.2.5
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking distance v0.4.0
[INFO] [stderr]     Checking seahash v3.0.6
[INFO] [stderr]     Checking astro v2.0.0
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]    Compiling stdweb v0.4.18
[INFO] [stderr]     Checking base64 v0.5.2
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.4.3
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]    Compiling stdweb-derive v0.5.1
[INFO] [stderr]     Checking hyper-native-tls v0.2.4
[INFO] [stderr]     Checking hyper-native-tls v0.3.0
[INFO] [stderr]     Checking websocket v0.18.0 (https://github.com/mraof/rust-websocket?branch=hyper-bump#686247ab)
[INFO] [stderr]     Checking tcpgen v0.1.0 (https://github.com/mraof/tcpgen#eb7a6400)
[INFO] [stderr] error[E0425]: cannot find function `sample_iter` in module `rand::seq`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/tcpgen-1fec45dc0dfa650f/eb7a640/src/lib.rs:272:61
[INFO] [stderr]     |
[INFO] [stderr] 272 |             let modifiers: Vec<(String, Tier)> = rand::seq::sample_iter(&mut random, self.modifiers.clone(), modifier_count).unwrap().into_iter().map(|string| (string, Tier::gen(&mut random))).collect();
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ not found in `rand::seq`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sample_iter` in module `rand::seq`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/tcpgen-1fec45dc0dfa650f/eb7a640/src/lib.rs:273:61
[INFO] [stderr]     |
[INFO] [stderr] 273 |             let anomalies: Vec<(String, Tier)> = rand::seq::sample_iter(&mut random, self.anomalies.clone(), anomaly_count).unwrap().into_iter().map(|string| (string, Tier::gen(&mut random))).collect();
[INFO] [stderr]     |                                                             ^^^^^^^^^^^ not found in `rand::seq`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sample_iter` in module `rand::seq`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/tcpgen-1fec45dc0dfa650f/eb7a640/src/lib.rs:276:40
[INFO] [stderr]     |
[INFO] [stderr] 276 |                 conditions: rand::seq::sample_iter(&mut random, self.conditions.clone(), condition_count).unwrap(),
[INFO] [stderr]     |                                        ^^^^^^^^^^^ not found in `rand::seq`
[INFO] [stderr] 
[INFO] [stderr]     Checking h2 v0.1.25
[INFO] [stderr] error[E0599]: no method named `choose` found for type `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/tcpgen-1fec45dc0dfa650f/eb7a640/src/lib.rs:237:48
[INFO] [stderr]     |
[INFO] [stderr] 237 |                 types: vec![(*tcp_type, random.choose(list).unwrap().clone())],
[INFO] [stderr]     |                                                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `tcpgen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "9b893a3a2eab531263bc4b598df09bf0e5532ca6ba6eb871281e3b8157c5f97a"`
[INFO] running `"docker" "rm" "-f" "9b893a3a2eab531263bc4b598df09bf0e5532ca6ba6eb871281e3b8157c5f97a"`
[INFO] [stdout] 9b893a3a2eab531263bc4b598df09bf0e5532ca6ba6eb871281e3b8157c5f97a