[INFO] updating cached repository andykilroy/bucktracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andykilroy/bucktracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andykilroy/bucktracer" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/andykilroy/bucktracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/andykilroy/bucktracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andykilroy/bucktracer" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/andykilroy/bucktracer"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/andykilroy/bucktracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6da4053d7a9ac300b8d1af44ca9341e4c8c84794
[INFO] sha for GitHub repo andykilroy/bucktracer: 6da4053d7a9ac300b8d1af44ca9341e4c8c84794
[INFO] validating manifest of andykilroy/bucktracer on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of andykilroy/bucktracer on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing andykilroy/bucktracer
[INFO] finished frobbing andykilroy/bucktracer
[INFO] frobbed toml for andykilroy/bucktracer written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/andykilroy/bucktracer/Cargo.toml
[INFO] started frobbing andykilroy/bucktracer
[INFO] finished frobbing andykilroy/bucktracer
[INFO] frobbed toml for andykilroy/bucktracer written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/andykilroy/bucktracer/Cargo.toml
[INFO] crate andykilroy/bucktracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking andykilroy/bucktracer against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-0/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/andykilroy/bucktracer:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 80f385f1d9c2ab4accd5fc95f2a17413586670989402c34d6924138453b26572
[INFO] running `"docker" "start" "-a" "80f385f1d9c2ab4accd5fc95f2a17413586670989402c34d6924138453b26572"`
[INFO] [stderr]     Checking bucktracer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:216:39
[INFO] [stderr]     |
[INFO] [stderr] 216 | pub fn encode_ppm(c: &Canvas, w: &mut Write) -> IOResult<()> {
[INFO] [stderr]     |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:224:42
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn encode_ppm_pixels(c: &Canvas, w: &mut Write, line_width: usize) -> IOResult<()> {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::*`
[INFO] [stderr]    --> src/lib.rs:775:9
[INFO] [stderr]     |
[INFO] [stderr] 775 |     use crate::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:216:39
[INFO] [stderr]     |
[INFO] [stderr] 216 | pub fn encode_ppm(c: &Canvas, w: &mut Write) -> IOResult<()> {
[INFO] [stderr]     |                                       ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:224:42
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn encode_ppm_pixels(c: &Canvas, w: &mut Write, line_width: usize) -> IOResult<()> {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:803:13
[INFO] [stderr]     |
[INFO] [stderr] 803 |         let mut cam = camera(
[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/lib.rs:821:13
[INFO] [stderr]     |
[INFO] [stderr] 821 |         let mut cam = camera(
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:839:13
[INFO] [stderr]     |
[INFO] [stderr] 839 |         let mut cam = camera(
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::*`
[INFO] [stderr]  --> src/bin/silhouette.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::f64::consts::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::f64::consts::*`
[INFO] [stderr]  --> src/bin/silhouette.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::f64::consts::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `"docker" "inspect" "80f385f1d9c2ab4accd5fc95f2a17413586670989402c34d6924138453b26572"`
[INFO] running `"docker" "rm" "-f" "80f385f1d9c2ab4accd5fc95f2a17413586670989402c34d6924138453b26572"`
[INFO] [stdout] 80f385f1d9c2ab4accd5fc95f2a17413586670989402c34d6924138453b26572